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<channel>
	<title>l10n &amp;laquo; WordPress.com Tag Feed</title>
	<link>http://en.wordpress.com/tag/l10n/</link>
	<description>Feed of posts on WordPress.com tagged "l10n"</description>
	<pubDate>Sat, 28 Nov 2009 16:42:37 +0000</pubDate>

	<generator>http://en.wordpress.com/tags/</generator>
	<language>en</language>

<item>
<title><![CDATA[po4a. Gestión del formato y las traducciones de documentación]]></title>
<link>http://elric80.wordpress.com/2009/11/21/po4a-gestion-del-formato-y-las-traducciones-de-tus-documentos/</link>
<pubDate>Sat, 21 Nov 2009 13:05:35 +0000</pubDate>
<dc:creator>elric80</dc:creator>
<guid>http://elric80.wordpress.com/2009/11/21/po4a-gestion-del-formato-y-las-traducciones-de-tus-documentos/</guid>
<description><![CDATA[po4a es un programa que me lleva fascinando un tiempo. Tanto que he acabado actualizando su extenso ]]></description>
<content:encoded><![CDATA[po4a es un programa que me lleva fascinando un tiempo. Tanto que he acabado actualizando su extenso ]]></content:encoded>
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<title><![CDATA[QA Distiller 7: Sanity Checks on Steroids]]></title>
<link>http://localizationlocalisation.wordpress.com/2009/11/17/qa-distiller-7-sanity-checks-on-steroids/</link>
<pubDate>Mon, 16 Nov 2009 23:32:41 +0000</pubDate>
<dc:creator>Nick Peris</dc:creator>
<guid>http://localizationlocalisation.wordpress.com/2009/11/17/qa-distiller-7-sanity-checks-on-steroids/</guid>
<description><![CDATA[QA Distiller is a great quality control tool I came across when I was working on the Marketing proje]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><a href="http://www.qa-distiller.com/"><img src="http://localizationlocalisation.wordpress.com/files/2009/11/qa_distiller.gif" alt="" title="QA Distiller" width="335" height="337" class="alignright size-full wp-image-416" /></a><a href="http://www.qa-distiller.com/">QA Distiller</a> is a great quality control tool I came across when I was working on the Marketing project I already mentioned in an article about <a href="http://localizationlocalisation.wordpress.com/2009/04/08/xml-in-localisation-what-can-it-really-do-for-us/">XML in Localisation</a>.<br />
Developed and distributed by <a href="http://www.yamagata-europe.com/">Yagamata Europe</a>, this tool has a lot to offer to client-side engineers, multilingual vendors and freelancers alike. In fact I was even using it to enforce proper and consistent use of Terminology in source marketing content, before sending for localisation. </p>
<p>With the impending release of version 7 at the end of this month, I thought it was the perfect opportunity to talk about it on Loc Loc. The purpose of QA Distiller is to batch process quality checks on bilingual files. Essentially, it performs similar tasks to the QA Checker in <a href="http://www.trados.com/">Trados</a>&#8217;s TagEditor, but with some major differences. </p>
<h3>The benefits</h3>
<p><strong>Multiple file processing:</strong> QA Distiller allows you to run a highly customizable list of checks on batches of files. There is no need to open of each individual TTX file, or run the QA Checker successively on each one. Just select the files to process, the settings to apply and run the tool to output a comprehensive report for your follow-up. This is a great way to control and enforce consistency across entire handoffs or projects. Translation quality, Terminology consistency etc. are simultaneously audited across all the files selected.</p>
<p><strong>Multi-lingual processing:</strong> better yet, this can also be done across all languages at once, which is particularly powerful for controlling <strong>Do Not Translate</strong> instructions have been adhered to, for example.</p>
<p><strong>Interactive reporting:</strong> the report output is another great selling point. It rates and classifies errors and lets you update it as you review and fix or discard candidate errors. It can be exported to a variety of formats where source, target and error details are summarised and categorised. This is very helpful to communicate with vendors on queries, as well as measure the quality od deliveries. Finally, the report has hyperlinks not only to the file, but <strong>to the actual segment</strong> where the potential error was detected. This makes the implementation of fixes really quick and easy. No more peeling your eyes out to find typos or endless finger-cramping Ctr+F session. If there is an error, QA Distiller will get you right there!</p>
<p><strong>Software stability:</strong> my experience (version 6 in Windows XP) has shown very solid performance and compatibility, and certainly far less crashes than SDL&#8217;s QA Checker.</p>
<h3>Some rare shortcomings</h3>
<p><a href="http://localizationlocalisation.wordpress.com/files/2009/11/qadistiller.gif"><img src="http://localizationlocalisation.wordpress.com/files/2009/11/qadistiller.gif?w=300" alt="" title="Click here to expand this QA Distiller screenshot" width="300" height="197" class="alignright size-medium wp-image-427" /></a><br />
One of the limitations I found in the current version was that the <strong>Translation Consistency check</strong> did not work when running QA Distiller across several languages. Instead of reading the language code of each file and filtering the comparison, it reported the fact that translations differed from one language to the next. Not particularly helpful.</p>
<p>Secondly, although the <strong>pricing structure</strong> offers good choice, the full version seems a bit steep at €1000, especially since it also requires Trados to function on TTX files.</p>
<h3>Additionnal Technical Information</h3>
<p>QA Distiller supports all languages, and a variety of file formats: TRADOStag documents (TTX), FrameMaker RTF (STF), Translation Memory eXchange (TMX).<br />
Terminology can be checked against proprietary-format dictionnaries (DICT) or the industry-standard Term Base eXchange (TBX).</p>
<p>The upcoming version 7 introduces:</p>
<ul>
<li>Tag and ID-aware terminology checks</li>
<li>New Wrench icon funcitonnalities: batch correction of multiple quotation mark and number formatting</li>
<li>Fine-grained ignore option for improved noise filtering</li>
<li>Tag and case-independent consistency check</li>
<li>Full support for Georgian, Malay (Rumi and Jawi), Serbian (Latin and Cyrillic)</li>
</ul>
<p>The little green man also told me that there are plans to add support for the many different XLIFF flavours like SDL XLIFF, MemoQ XLIFF, WorldServer XLIFF by the first quarter of next year.</p>
<p>For more details, check the cool demo at <a href="http://www.qa-distiller.com/movie/‏">http://www.qa-distiller.com/movie/‏</a></p>
</div>]]></content:encoded>
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<title><![CDATA[ఏం జరుగుతోంది...]]></title>
<link>http://veeven.wordpress.com/2009/11/16/happenings/</link>
<pubDate>Mon, 16 Nov 2009 02:30:04 +0000</pubDate>
<dc:creator>వీవెన్</dc:creator>
<guid>http://veeven.wordpress.com/2009/11/16/happenings/</guid>
<description><![CDATA[డిసెంబర్ రెండవ ఆదివారం తెలుగు బ్లాగుల దినోత్సవం. మీ ఊళ్ళో ఏం చేస్తున్నారీసారి? ఇంకో నెల ఉందనుకోండి. ]]></description>
<content:encoded><![CDATA[డిసెంబర్ రెండవ ఆదివారం తెలుగు బ్లాగుల దినోత్సవం. మీ ఊళ్ళో ఏం చేస్తున్నారీసారి? ఇంకో నెల ఉందనుకోండి. ]]></content:encoded>
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<title><![CDATA[Today's Rawhide [20091107]]]></title>
<link>http://jattboot.wordpress.com/2009/11/08/todays-rawhide-20091107/</link>
<pubDate>Sun, 08 Nov 2009 02:37:17 +0000</pubDate>
<dc:creator>jattboot</dc:creator>
<guid>http://jattboot.wordpress.com/2009/11/08/todays-rawhide-20091107/</guid>
<description><![CDATA[Summary: anaconda-12.46 Ok Installation Ok firstboot ok Bugs (filed): Desktop = Nil i18n =  Nil l10n]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Summary:<br />
anaconda-12.46 Ok<br />
Installation Ok<br />
firstboot ok</p>
<p>Bugs (filed):<br />
Desktop = Nil<br />
i18n =  Nil<br />
l10n = Nil</p>
<p>Detail:</p>
<p>Major Changes:<br />
Removed Package:<br />
Updated Package:<br />
anaconda-12.46-1.fc12 &#8211; RH#531932<br />
gdm-2.28.1-24.fc12</p>
<p>Summary:<br />
Added Packages: 0<br />
Removed Packages: 0<br />
Modified Packages: 4</p>
<p><a href="https://www.redhat.com/archives/fedora-test-list/2009-November/msg00290.html"> Complete Rawhide Report</a></p>
<p>Bug (or expected Bug): Kannada Translation is missing for network configuration</p>
<p>Updated bug:<br />
Closed Bug:</p>
<p>installation language: Kannada (kn_IN)</p>
<p>install.log file error/warning:</p>
<p>install.log file warning: No</p>
<p>Machine:<br />
Intel C3Q + Intel Chipset</p>
</div>]]></content:encoded>
</item>
<item>
<title><![CDATA[Today's Rawhide [20091106]]]></title>
<link>http://jattboot.wordpress.com/2009/11/07/todays-rawhide-20091106/</link>
<pubDate>Sat, 07 Nov 2009 03:03:51 +0000</pubDate>
<dc:creator>jattboot</dc:creator>
<guid>http://jattboot.wordpress.com/2009/11/07/todays-rawhide-20091106/</guid>
<description><![CDATA[Summary: anaconda-12.45 Ok Installation Ok firstboot ok Bugs (filed): Desktop = Nil i18n =  Nil l10n]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Summary:<br />
anaconda-12.45 Ok<br />
Installation Ok<br />
firstboot ok</p>
<p>Bugs (filed):<br />
Desktop = Nil<br />
i18n =  Nil<br />
l10n = Nil</p>
<p>Detail:</p>
<p>Major Changes:<br />
Removed Package:<br />
Updated Package:<br />
anaconda-12.45-1.fc12 -<br />
fedora-release-notes-12.0.0-4.fc12 -<br />
glibc-2.11-2<br />
gtranslator-1.9.6-2.fc12 &#8211; rebuild<br />
kernel-2.6.31.5-122.fc12 &#8211; nouveau: fix rh#532924,<br />
metacity-2.28.0-9.fc12<br />
xorg-x11-server-1.7.1-7.fc12</p>
<p>Summary:<br />
Added Packages: 0<br />
Removed Packages: 0<br />
Modified Packages: 17</p>
<p><a href="https://www.redhat.com/archives/fedora-test-list/2009-November/msg00249.html"> Complete Rawhide Report</a></p>
<p>Bug (or expected Bug): Telugu Translation is missing for network configuration</p>
<p>Updated bug:<br />
Closed Bug:</p>
<p>installation language: Telugu (te_IN)</p>
<p>install.log file error/warning:</p>
<p>install.log file warning: No</p>
<p>Machine:<br />
Intel C3Q + Intel Chipset</p>
</div>]]></content:encoded>
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<title><![CDATA[Today's Rawhide [20091105]]]></title>
<link>http://jattboot.wordpress.com/2009/11/06/todays-rawhide-20091105/</link>
<pubDate>Fri, 06 Nov 2009 02:46:30 +0000</pubDate>
<dc:creator>jattboot</dc:creator>
<guid>http://jattboot.wordpress.com/2009/11/06/todays-rawhide-20091105/</guid>
<description><![CDATA[Summary: anaconda-12.44 Installation Ok firstboot ok Bugs (filed): Desktop = Nil i18n =  Nil l10n = ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Summary:<br />
anaconda-12.44<br />
Installation Ok<br />
firstboot ok</p>
<p>Bugs (filed):<br />
Desktop = Nil<br />
i18n =  Nil<br />
l10n = Nil</p>
<p>Detail:</p>
<p>Major Changes:<br />
Removed Package:<br />
Updated Package:<br />
NetworkManager-0.7.996-6.git20091021.fc12<br />
anaconda-12.44-1.fc12 &#8211; bz#531932<br />
fedora-logos-12.0.3-2.fc12 &#8211; kde icon<br />
ibus-1.2.0.20091024-1.fc12- Update to 1.2.0.20091024<br />
kernel-2.6.31.5-117.fc12<br />
livecd-tools-031-1.fc12 &#8211; livecd-iso-to-disk capable of installing installer DVD to USB<br />
plymouth-0.8.0-0.2009.29.09.18.fc12<br />
pulseaudio-0.9.19-2.fc12 &#8211; Bug #532583 gdm should not require pulseaudio<br />
qemu-0.11.0-11.fc12<br />
xorg-x11-drv-nouveau-0.0.15-17.20091105gite1c2efd.fc12 &#8211; rh#532322,<br />
xorg-x11-server-1.7.1-6.fc12 &#8211; #524244</p>
<p>Summary:<br />
Added Packages: 1<br />
Removed Packages: 0<br />
Modified Packages: 35</p>
<p><a href="https://www.redhat.com/archives/fedora-test-list/2009-November/msg00186.html"> Complete Rawhide Report</a></p>
<p>Bug (or expected Bug): Hindi Translation is missing for network configuration</p>
<p>Updated bug:<br />
Closed Bug:</p>
<p>installation language: Hindi (hi_IN)</p>
<p>install.log file error/warning:</p>
<p>install.log file warning: No</p>
<p>Machine:<br />
Intel C3Q + Intel Chipset</p>
</div>]]></content:encoded>
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<item>
<title><![CDATA[Proyecto vim-doc-es. Manual de usuario de Vim en español.]]></title>
<link>http://elric80.wordpress.com/2009/11/01/proyecto-vim-doc-es-manual-de-usuario-de-vim-en-espanol/</link>
<pubDate>Sun, 01 Nov 2009 17:33:12 +0000</pubDate>
<dc:creator>elric80</dc:creator>
<guid>http://elric80.wordpress.com/2009/11/01/proyecto-vim-doc-es-manual-de-usuario-de-vim-en-espanol/</guid>
<description><![CDATA[El proyecto vim-doc-es nació con la intención de ofrecer una correcta y completa traducción de Vim a]]></description>
<content:encoded><![CDATA[El proyecto vim-doc-es nació con la intención de ofrecer una correcta y completa traducción de Vim a]]></content:encoded>
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<title><![CDATA[Today's Rawhide [20091031]]]></title>
<link>http://jattboot.wordpress.com/2009/11/01/todays-rawhide-20091031/</link>
<pubDate>Sun, 01 Nov 2009 03:12:18 +0000</pubDate>
<dc:creator>jattboot</dc:creator>
<guid>http://jattboot.wordpress.com/2009/11/01/todays-rawhide-20091031/</guid>
<description><![CDATA[Summary: anaconda-12.41 Installation Ok firstboot ok Bugs (filed): Desktop = Nil i18n =  Nil l10n = ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Summary:<br />
anaconda-12.41<br />
Installation Ok<br />
firstboot ok</p>
<p>Bugs (filed):<br />
Desktop = Nil<br />
i18n =  Nil<br />
l10n = 1</p>
<p>Detail:</p>
<p>Major Changes:<br />
qt-4.5.3-7.fc12<br />
system-config-printer-1.1.13-6.fc12</p>
<p>Summary:<br />
Added Packages: 0<br />
Removed Packages: 0<br />
Modified Packages: 25</p>
<p><a href="https://www.redhat.com/archives/fedora-test-list/2009-October/msg00849.html">Complete Rawhide Report</a></p>
<p>Bug (or expected Bug):<br />
New Bug:  <a href="https://bugzilla.redhat.com/show_bug.cgi?id=532274">anaconda Translation bug</a><br />
Updated bug:<br />
Closed Bug:</p>
<p>installation language: Hindi (hi_IN)</p>
<p>install.log file error/warning: fontpackages-filesystem-1.29-1 Nokey (warning)</p>
<p>install.log file warning:</p>
<p>Machine:<br />
Intel C2Q + Intel Graphics (Profile)</p>
</div>]]></content:encoded>
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<title><![CDATA[GYANDOTCOM NOW ON FACEBOOK AND TWITTER.]]></title>
<link>http://gyandotcom.wordpress.com/2009/10/11/gyandotcom-now-on-facebook-and-twitter/</link>
<pubDate>Sat, 10 Oct 2009 20:39:00 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/10/11/gyandotcom-now-on-facebook-and-twitter/</guid>
<description><![CDATA[DEAR FRIENDS GYANDOTCOM NOW ON FACEBOOK AND ON TWITTER TO ADD IN FACE BOOK go to FACEBOOK SEARCH AND]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>DEAR FRIENDS</p>
<p>GYANDOTCOM NOW ON FACEBOOK AND ON TWITTER</p>
<p>TO ADD IN FACE BOOK go to FACEBOOK SEARCH AND TYPE GYANDOTCOM</p>
<p>IN Google SEARCH JUST TYPE  GYANDOTCOM</p>
<p>AND IN TWITTER  CLICK BELOW TO ADD</p>
<p><a href="http://twitter.com/gyandotcom">http://twitter.com/gyandotcom</a></p>
<p>KEEP READING GYANDOTCOM</p>
<p>REGARDS</p>
<p>ROHIT SHARMA</p>
</div>]]></content:encoded>
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<title><![CDATA[The Reality of (Dooms-Day) December 21-12-2012. by Rohit Sharma]]></title>
<link>http://gyandotcom.wordpress.com/2009/10/02/the-reality-of-doomsday-december-21-12-2012-by-rohit-sharma/</link>
<pubDate>Thu, 01 Oct 2009 21:25:44 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/10/02/the-reality-of-doomsday-december-21-12-2012-by-rohit-sharma/</guid>
<description><![CDATA[First and foremost, the Sun has a natural cycle with a period of approximately 11 years. During the ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">First and foremost, the Sun has a natural cycle with a period of approximately 11 years. During the lifetime of each cycle, the magnetic field lines of the Sun are dragged around the solar body by differential rotation at the solar equator. This means that the equator is spinning faster than the magnetic poles. As this continues, solar plasma drags the magnetic field lines around the Sun, causing stress and a build up of energy (an illustration of this is pictured). As magnetic energy increases, kinks in the magnetic flux form, forcing them to the surface. These kinks are known as coronal loops which become more numerous during periods of high solar activity.This is where the sunspots come in. As coronal loops continue to pop up over the surface, sunspots appear too, often located at the loop footpoints. Coronal loops have the effect of pushing the hotter surface layers of the Sun (the photosphere and chromosphere) aside, exposing the cooler convection zone (the reasons why the solar surface and atmosphere is hotter than the solar interior is down to the coronal heating phenomenon). As magnetic energy builds up, we can expect more and more magnetic flux to be forced together. This is when a phenomenon known as magnetic reconnection occurs.Reconnection is the trigger for solar flares of various sizes. As previously reported, solar flares from &#8220;nanoflares&#8221; to &#8220;X-class flares&#8221; are very energetic events. Granted, the largest flares my generate enough energy for 100 billion atomic explosions, but don&#8217;t let this huge figure concern you. For a start, this flare occurs in the low corona, right near the solar surface. That&#8217;s nearly 100 million miles away (1AU). The Earth is nowhere close to the blast.As the solar magnetic field lines release a huge amount of energy, solar plasma is accelerated and confined within the magnetic environment (solar plasma is superheated particles like protons, electrons and some light elements such as helium nuclei). As the plasma particles interact, X-rays may be generated if the conditions are right and bremsstrahlung is possible. (Bremsstrahlung occurs when charged particles interact, resulting in X-ray emission.) This may create an X-ray flare.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The driver was taking me from  mumbai airport into the pune city. As we chatted on theway , it came out that he was deeply worried. He had a wife and child, and a new baby on the way &#8211; but what was the use of living, he cried, if the world would end in 2012 as predicted by the Mayan prophecies, when his new baby would be just four years old.Prophecies about the end of the world (or at the very least, civilisation as we know it) have been around forever. There was a flurry of them around 2000 AD, and another bunch for 5 May 2005, when all the planets were supposed to line up. (By the way, they didn&#8217;t line up and yep, we&#8217;re still here.)The Mayan civilisation covered the skinny bit of the Americas between North and South America, reaching from the southern states of Mexico down to western Honduras. Its Classic Period was from 250 to 900 AD, so their best years were behind them by the time of the Spanish invasion.At their peak, the Mayans had the only mature written language ever found in the Americas, spectacular and densely populated cities, and very sophisticated systems of mathematics, astronomy and calendars.They were marvelous astronomers, showing what could be done with the naked eye. Their measurements of the lunar month, the period of Venus and the year were more accurate than those of the Ancient Greeks.Which brings us to the calendar that predicts the end of the world in 2012.The Mayans had many calendars, because they saw &#8216;time&#8217; as a meshing of sacred or spiritual cycles. So while our Gregorian calendar organises days for social, administrative and commercial purposes, the Mayan calendars added a religious element. For example, each day had a patron spirit, and so could be good for travel, but bad for business.One of their several calendars was called the Long Count. It was set up around 355 BCE, and had as its chosen starting date 0.0.0.0.0, which corresponds to 11 August 3114 BCE. And on 21 December 2012, the Mayan Long Count calendar will read 13.0.0.0.0.Now here&#8217;s how it works. Our numbering system is based on 10. But the Mayans had a counting system based on 20, so most of the &#8217;slots&#8217; in their calendar had 20 potential numbers (0 to 19). The calendar read a little like the odometer in your car&#8217;s speedo (which run from 0 to 9). The extreme right slot (of five slots) would count through the days, and when it got to 19 days (0.0.0.0.19) would reset to zero, and the next slot across to the left would increase by one (to 0.0.0.1.0).So 0.0.0.0.1 was one day, and 0.0.0.1.0 was 20 days. Then 0.0.1.0.0 was about one year, 0.1.0.0.0 was about 20 years and with 1.0.0.0.0, you&#8217;ve clocked up about 400 years. And on 21 December 2012, the Mayan Long Count calendar will read 13.0.0.0.0.By the way, the time between 0.0.0.0.0 and 13.0.0.0.0 is about 5126 years. Now some Mayan archaeo-astronomers reckon that the calendar should reset back to zero and start again. But others disagree and say it should continue to 20, and then reset again.We don&#8217;t have enough information to know who is correct &#8211; but if it does go up to 20, then this completely destroys the End of Days Conspiracy Theory, as far as the year 2012 is concerned. But let&#8217;s stick to the 13 Conspiracy for the time being.The claims for 21 December 2012 cover a lot of ground. They range from &#8216;nuclear holocaust&#8217; to &#8216;Harmonic Convergence of cosmic energy flowing through the earth, cleansing it and raising it to a higher level of vibration&#8217;, and along the way they include &#8216;the death of two-thirds of humanity&#8217; and &#8216;the north and south poles will split&#8217; &#8211; you get the picture. But there are two problems with this.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">First, when a calendar comes to the end of a cycle, it just rolls over into the next cycle. In our Western society, every year 31 December is followed, not by the End of the World, but by 1 January. So 13.0.0.0.0 in the Mayan calendar will be followed by 0.0.0.0.1 &#8211; or good-ol&#8217; 22 December 2012, with only a few shopping days left to Christmas.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">And the second problem is that it is always remarkably difficult to make predictions, especially about the future, and things that haven&#8217;t happened yet.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Apparently, on December 21st 2012, our planet will experience a powerful event. This time we&#8217;re not talking about Planet X, Nibiru or a &#8220;killer&#8221; solar flare, this event will originate deep within the core of our planet, forcing a catastrophic change in our protective magnetic field. Not only will we notice a rapid reduction in magnetic field strength, we&#8217;ll also see the magnetic poles rapidly reverse polarity (i.e. the north magnetic pole will be located over the South Pole and vice versa). So what does this mean to us? If we are to believe the doomsayers, we&#8217;ll be exposed to the vast quantities of radiation blasting from the Sun; with a reversing magnetic field comes a weakening in the Earth&#8217;s ability to deflect cosmic rays. Our armada of communication and military satellites will drop from orbit, adding to the chaos on the ground. There will be social unrest, warfare, famine and economic collapse. Without GPS, our airliners will also plough into the ground…Using the Mayan Prophecy as an excuse to create new and explosive ways in which our planet may be destroyed, 2012 doomsayers use the geomagnetic shift theory as if it is set in stone. Simply because scientists have said that it might happen within the next millennium appears to be proof enough that it will happen in four years time. Alas, although this theory has some scientific backing, there is no way that anyone can predict when geomagnetic reversal might happen to the nearest day or to the nearest million years…</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Firstly, let&#8217;s differentiate between geomagnetic reversal and polar shift. Geomagnetic reversal is the change in the magnetic field of the Earth, where the magnetic north pole shifts to the South Polar Region and the south magnetic pole shifts to the North Polar Region. Once this process is complete, our compasses would point toward Antarctica, rather than northern Canada. Polar shift is considered to be a less likely event that occurs a few times in the evolutionary timescale of the Solar System. There are a couple of examples of planets that have suffered a catastrophic polar shift, including Venus (which rotates in an opposite direction to all the other planets, therefore it was flipped upside down by some huge event, such as a planetary collision) and Uranus (which rotates on its side, having been knocked off-axis by an impact, or some gravitational effect caused by Jupiter and Saturn). Many authors (including the doomsayers themselves) often cite both geomagnetic reversal and polar shift as being one of the same thing. This isn&#8217;t the case.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So, on with geomagnetic reversal…</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">How often does it happen?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The Earths interior</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The reasons behind the reversal of the magnetic poles is poorly understood, but it is all down to the internal dynamics of Planet Earth. As our planet spins, the molten iron in the core flows freely, forcing free electrons to flow with it. This convective motion of charged particles sets up a magnetic field which bases its poles in the North and South Polar Regions (a dipole). This is known as the dynamo effect. The resulting magnetic field approximates a bar magnet, allowing the field to envelop our planet.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">This magnetic field passes through the core to the crust and pushes into space as the Earth&#8217;s magnetosphere, a protective bubble constantly being buffeted by the solar wind. As the solar wind particles are usually charged, the Earth&#8217;s powerful magnetosphere deflects the particles, only allowing them into the polar cusp regions where the polar magnetic fieldlines become &#8220;open.&#8221; The regions at which these energetic particles are allowed to enter glow as aurorae.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Usually this situation can last for aeons (a stable magnetic field threaded through the North and South Polar Regions), but occasionally, the magnetic field is known to reverse and alter in strength. Why is this?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Earths polarity reversals over the last 160 million years. Black = normal polarity, White = reversed polarity.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Again, we simply do not know. We do know that this magnetic pole flip-flop has occurred many times in the last few million years, the last occurred 780,000 years ago according to ferromagnetic sediment. A few scaremongering articles have said geomagnetic reversal occurs with &#8220;clockwork regularity&#8221; – this is simply not true. As can be seen from the diagram (left), magnetic reversal has occurred fairly chaotically in the last 160 million years. Long-term data suggests that the longest stable period between magnetic &#8220;flips&#8221; is nearly 40 million years (during the Cretaceous period over 65 million years BC) and the shortest is a few hundred years.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Some 2012 theories suggest that the Earth&#8217;s geomagnetic reversal is connected to the natural 11-year solar cycle. Again, there is absolutely no scientific evidence to support this claim. No data has ever been produced suggesting a Sun-Earth magnetic polarity change connection.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So, already this doomsday theory falters in that geomagnetic reversal does not occur with &#8220;clockwork regularity,&#8221; and it has no connection with solar dynamics. We are not due a magnetic flip as we cannot predict when the next one is going to occur, magnetic reversals occur at seemingly random points in history.What causes geomagnetic reversal?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The model Earth, can a magnetic field be modelled in the lab?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Research is afoot to try to understand the internal dynamics of our planet. As the Earth spins, the molten iron inside churns and flows in a fairly stable manner for millennia. For some reason during geomagnetic reversal, some instability causes an interruption to the steady generation of a global magnetic field, causing it to flip-flop between the poles.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">In a previous Gyandotcom 2012 Article, we discussed the efforts of geophysicist Dan Lathrop&#8217;s attempts to create his own &#8220;model Earth,&#8221; setting a 26 tonne ball (containing a molten iron analogue, sodium) spinning to see if the internal motion of the fluid could set up a magnetic field. This huge laboratory experiment is testament to the efforts being put into understanding how our Earth even generates a magnetic field, let alone why it randomly reverses.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">A minority view (which, again is used by doomsayers to link geomagnetic reversal with Planet X) is that there may be some external influence that causes the reversal. You will often see associated with the Planet X/Nibiru claims that should this mystery object encounter the inner Solar System during its highly elliptical orbit, the magnetic field disturbance could upset the internal dynamics of the Earth (and the Sun, possibly generating that &#8220;killer&#8221; solar flare I discussed back in June in my article the mood of sun is changing). This theory is a poor attempt to link several doomsday scenarios with a common harbinger of doom (i.e. Planet X). There is no reason to think the strong magnetic field of the Earth can be influenced by any external force, let alone a non-existent planet (or was that a brown dwarf?).</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The magnetic field strength waxes and wanes…</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Variations in geomagnetic field in western US since last reversal. The vertical dashed line is the critical value of intensity below which Guyodo and Valet (1999) consider several directional excursions to have occurred.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">New research into the Earth&#8217;s magnetic field was published recently in the September 26th issue of Science, suggesting that the Earth&#8217;s magnetic field isn&#8217;t as simple as we once believed. In addition to the North-South dipole, there is a weaker magnetic field spread around the planet, probably generated in the outer core of the Earth.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The Earth&#8217;s magnetic field is measured to vary in field strength and it is a well known fact that the magnetic field strength is currently experiencing a downward trend. The new research paper, co-authored by geochronologist Brad Singer of the University of Wisconsin, suggests that the weaker magnetic field is critical to geomagnetic reversal. Should the stronger dipole (north-south) field reduce below the magnetic field strength of this usually weaker, distributed field, a geomagnetic reversal is possible.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">&#8220;The field is not always stable, the convection and the nature of the flow changes, and it can cause the dipole that&#8217;s generated to wax and wane in intensity and strength,&#8221; Singer said. &#8220;When it becomes very weak, it&#8217;s less capable of reaching to the surface of the Earth, and what you start to see emerge is this non-axial dipole, the weaker part of the field that&#8217;s left over.&#8221; Singer&#8217;s research group analysed samples of ancient lava from volcanoes in Tahiti and Germany between 500,000 and 700,000 years ago. By looking at an iron-rich mineral called magnetite in the lava, the researchers were able to deduce the direction of the magnetic field.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The spin of the electrons in the mineral is governed by the dominant magnetic field. During times of strong dipolar field, these electrons pointed toward the magnetic North Pole. During times of weak dipolar field, the electrons pointed to wherever the dominant field was, in this case the distributed magnetic field. They think that when the weakened dipolar field drops below a certain threshold, the distributed field pulls the dipolar field off-axis, causing a geomagnetic shift.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">&#8220;The magnetic field is one of the most fundamental features of the Earth,&#8221; Singer said. &#8220;But it&#8217;s still one of the biggest enigmas in science. Why [the flip] happens is something people have been chasing for more than a hundred years.&#8221;</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Our meandering magnetic pole</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The movement of Earth&#8217;s north magnetic pole across the Canadian arctic, 1831&#8211;2001 (Geological Survey of Canada)</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Although there appears to be a current downward trend in magnetic field strength, the current magnetic field is still considered to be &#8220;above average&#8221; when compared with the variations measured in recent history. According to researchers at Scripps Institution of Oceanography, San Diego, if the magnetic field continued to decrease at the current trend, the dipolar field would effectively be zero in 500 years time. However, it is more likely that the field strength will simply rebound and increase in strength as it has done over the last several thousand years, continuing with its natural fluctuations.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The positions of the magnetic poles are also known to be wondering over Arctic and Antarctic locations. Take the magnetic north pole for example (pictured left); it has accelerated north over the Canadian plains from 10 km per year in the 20th Century to 40 km per year more recently. It is thought that if the point of magnetic north continues this trend, it will exit North America and enter Siberia in a few decades time. This is not a new phenomenon however. Ever since James Ross&#8217; discovery of the location of the north magnetic pole for the first time in 1831, it&#8217;s location has meandered hundreds of miles (even though today&#8217;s measurements show some acceleration).</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So, no doomsday then?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Apparently, the world is going to end on December 21st, 2012. Yes, you read correctly, in some way, shape or form, the Earth (or at least a large portion of humans on the planet) will cease to exist. Stop planning your careers, don&#8217;t bother buying a house, and be sure to spend the last years of your life doing something you always wanted to do but never had the time. Now you have the time, four years of time, to enjoy yourselves before… the end.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So what is all this crazy talk? We&#8217;ve all heard these doomsday predictions before, we&#8217;re still here, and the planet is still here, why is 2012 so important? Well, the Mayan calendar stops at the end of the year 2012, churning up all sorts of religious, scientific, astrological and historic reasons why this calendar foretells the end of life as we know it. The Mayan Prophecy is gaining strength and appears to be worrying people in all areas of society. Forget Nostradamus, forget the Y2K bug, forget the credit crunch, this event is predicted to be huge and many wholeheartedly believe this is going to happen for real. Planet X could even be making a comeback.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Geomagnetic reversal is an engrossing area of geophysical research that will continue to occupy physicists and geologists for many years to come. Although the dynamics behind this event are not fully understood, there is absolutely no scientific evidence supporting the claim that there could be a geomagnetic reversal around the time of December 21st, 2012.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Besides, the effects of such a reversal have been totally over-hyped. Should we experience geomagnetic reversal in our lifetimes (which we probably won&#8217;t), it is unlikely that we&#8217;ll be cooked alive by the Solar Wind, or be wiped out by cosmic rays. It is unlikely that we&#8217;ll suffer any mass extinction event (after all, early man, homo erectus, lived through the last geomagnetic shift, apparently with ease). We&#8217;ll most likely experience aurorae at all latitudes whilst the dipolar magnetic field settles down to its new, reversed state, and there might be a small increase in energetic particles from space (remember, just because the magnetosphere is weakened, doesn&#8217;t mean we wont have magnetic protection), but we&#8217;ll still be (largely) protected by our thick atmosphere.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Satellites may malfunction and migrating birds may become confused, but to predict world collapse is a hard pill to swallow.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">In conclusion:</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Geomagnetic reversal is chaotic in nature.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">There is no way we can predict it.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Simply because the magnetic field of the Earth is weakening does not mean it is near collapse. Geomagnetic field strength is &#8220;above average&#8221; if we compare today&#8217;s measurements with the last few million years.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The magnetic poles are not set in geographical locations, they move (at varying speeds) and have done ever since measurements began.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">There is no evidence to suggest external forcing of internal geomagnetic dynamics of the Earth. Therefore there is no evidence of the solar cycle-geomagnetic shift connection. Don&#8217;t get me started on Planet X.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So, do you think there will be a geomagnetic reversal event in 2012? I thought not.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">First and foremost, the Sun has a natural cycle with a period of approximately 11 years. During the lifetime of each cycle, the magnetic field lines of the Sun are dragged around the solar body by differential rotation at the solar equator. This means that the equator is spinning faster than the magnetic poles. As this continues, solar plasma drags the magnetic field lines around the Sun, causing stress and a build up of energy (an illustration of this is pictured). As magnetic energy increases, kinks in the magnetic flux form, forcing them to the surface. These kinks are known as coronal loops which become more numerous during periods of high solar activity.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">This is where the sunspots come in. As coronal loops continue to pop up over the surface, sunspots appear too, often located at the loop footpoints. Coronal loops have the effect of pushing the hotter surface layers of the Sun (the photosphere and chromosphere) aside, exposing the cooler convection zone (the reasons why the solar surface and atmosphere is hotter than the solar interior is down to the coronal heating phenomenon). As magnetic energy builds up, we can expect more and more magnetic flux to be forced together. This is when a phenomenon known as magnetic reconnection occurs.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Reconnection is the trigger for solar flares of various sizes. As previously reported, solar flares from &#8220;nanoflares&#8221; to &#8220;X-class flares&#8221; are very energetic events. Granted, the largest flares my generate enough energy for 100 billion atomic explosions, but don&#8217;t let this huge figure concern you. For a start, this flare occurs in the low corona, right near the solar surface. That&#8217;s nearly 100 million miles away (1AU). The Earth is nowhere close to the blast.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">As the solar magnetic field lines release a huge amount of energy, solar plasma is accelerated and confined within the magnetic environment (solar plasma is superheated particles like protons, electrons and some light elements such as helium nuclei). As the plasma particles interact, X-rays may be generated if the conditions are right and bremsstrahlung is possible. (Bremsstrahlung occurs when charged particles interact, resulting in X-ray emission.) This may create an X-ray flare.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The biggest problem with an X-ray flare is that we get little warning when it is going to happen as X-rays travel at the speed of light (one of the record breaking 2003 solar flares is pictured left). X-rays from an X-class flare will reach the Earth in around eight minutes. As X-rays hit our atmosphere, they are absorbed in the outermost layer called the ionosphere. As you can guess from the name, this is a highly charged, reactive environment, full of ions (atomic nuclei, and free electrons).</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">During powerful solar events such as flares, rates of ionization between X-rays and atmospheric gases increase in the D and E region layers of the ionosphere. There is a sudden surge in electron production in these layers. These electrons can cause interference to the passage of radio waves through the atmosphere, absorbing short wave radio signals (in the high frequency range), possibly blocking global communications. These events are known as &#8220;Sudden Ionospheric Disturbances&#8221; (or SIDs) and they become commonplace during periods of high solar activity. Interestingly, the increase in electron density during a SID boosts the propagation of Very Low Frequency (VLF) radio, a phenomenon scientists use to measure the intensity of X-rays coming from the Sun.X-ray solar flare emissions are only part of the story. If the conditions are right, a coronal mass ejection (CME) might be produced at the site of the flare (although either phenomenon can occur independently). CMEs are slower than the propagation of X-rays, but their global effects here on Earth can be more problematic. They may not travel at the speed of light, but they still travel fast; they can travel at a rate of 2 million miles per hour (3.2 million km/hr), meaning they may reach us in a matter of hours.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">This is where much effort is being put into space weather prediction. We have a handful of spacecraft sitting between the Earth and the Sun at the Earth-Sun Lagrangian (L1) point with sensors on board to measure the energy and intensity of the solar wind. Should a CME pass through their location, energetic particles and the interplanetary magnetic field (IMF) can be measured directly. One mission called the Advanced Composition Explorer (ACE) sits in the L1 point and provides scientists with up to an hour notice on the approach of a CME. ACE teams up with the Solar and Heliospheric Observatory (SOHO) and the Solar TErrestrial RElations Observatory (STEREO), so CMEs can be tracked from the lower corona into interplanetary space, through the L1 point toward Earth. These solar missions are actively working together to provide space agencies with advanced notice of an Earth-directed CME.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">So what if a CME reaches Earth? For a start, much depends on the magnetic configuration of the IMF (from the Sun) and the geomagnetic field of the Earth (the magnetosphere). Generally speaking, if both magnetic fields are aligned with polarities pointing in the same direction, it is highly probable that the CME will be repelled by the magnetosphere. In this case, the CME will slide past the Earth, causing some pressure and distortion on the magnetosphere, but otherwise passing without a problem. However, if the magnetic field lines are in an anti-parallel configuration (i.e. magnetic polarities in opposite directions), magnetic reconnection may occur at the leading edge of the magnetosphere.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">In this event, the IMF and magnetosphere will merge, connecting the Earth&#8217;s magnetic field with the Sun&#8217;s. This sets the scene for one of the most awe inspiring events in nature: the aurora.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Satellites in Peril</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">As the CME magnetic field connects with the Earth&#8217;s, high energy particles are injected into the magnetosphere. Due to solar wind pressure, the Sun&#8217;s magnetic field lines will fold around the Earth, sweeping behind our planet. The particles injected in the &#8220;dayside&#8221; will be funnelled into the polar regions of the Earth where they interact with our atmosphere, generating light as aurorae. During this time, the Van Allen belt will also become &#8220;super-charged&#8221;, creating a region around the Earth that could cause problems to unprotected astronauts and any unshielded satellites.As if the radiation from the Van Allen belt wasn&#8217;t enough, satellites could succumb to the threat of an expanding atmosphere. As you&#8217;d expect, as if the Sun hits the Earth with X-rays and CMEs, there will be inevitable heating and global expansion of the atmosphere, possibly encroaching into satellite orbital altitudes. If left unchecked, an aerobraking effect on satellites could cause them to slow and drop in altitude. Aerobraking has been used extensively as a space flight tool to slow spacecraft down when being inserted into orbit around another planet, but this will have an adverse effect on satellites orbiting Earth as any slowing of velocity could cause it to re-enter the atmosphere.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">We Feel the Effects on the Ground Too</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Although satellites are on the front line, if there is a powerful surge in energetic particles entering the atmosphere, we may feel the adverse effects down here on Earth too. Due to the X-ray generation of electrons in the ionosphere, some forms of communication may become patchy (or be removed all together), but this isn&#8217;t all that can happen. Particularly in high-latitude regions, a vast electric current, known as an &#8220;electrojet&#8221;, may form through the ionosphere by these incoming particles. With an electric current comes a magnetic field. Depending on the intensity of the solar storm, currents may be induced down here on the ground, possibly overloading national power grids. On March 13th 1989, six million people lost power in the Quebec region of Canada after a huge increase in solar activity caused a surge from ground-induced currents. Quebec was paralysed for nine hours whilst engineers worked on a solution to the problem.Can Our Sun Produce a Killer Flare?</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The short answer to this is &#8220;no&#8221;.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The longer answer is a little more involved. Whilst a solar flare from out Sun, aimed directly at us, could cause secondary problems such as satellite damage and injury to unprotected astronauts and blackouts, the flare itself is not powerful enough to destroy Earth, certainly not in 2012. I dare say, in the far future when the Sun begins to run out of fuel and swell into a red giant, it might be a bad era for life on Earth, but we have a few billion years to wait for that to happen. There could even be the possibility of several X-class flares being launched and by pure bad luck we may get hit by a series of CMEs and X-ray bursts, but none will be powerful to overcome our magnetosphere, ionosphere and thick atmosphere below.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">&#8220;Killer&#8221; solar flares have been observed on other stars. In 2006, NASA&#8217;s Swift observatory saw the largest stellar flare ever observed 135 light-years away. Estimated to have unleashed an energy of 50 million trillion atomic bombs, the II Pegasi flare will have wiped out most life on Earth if our Sun fired X-rays from a flare of that energy at us. However, our Sun is not II Pegasi. II Pegasi is a violent red giant star with a binary partner in a very close orbit. It is believed the gravitational interaction with its binary partner and the fact II Pegasi is a red giant is the root cause behind this energetic flare event.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Doomsayers point to the Sun as a possible Earth-killer source, but the fact remains that our Sun is a very stable star. It does not have a binary partner (like II Pegasi), it has a predictable cycle (of approximately 11 years) and there is no evidence that our Sun contributed to any mass extinction event in the past via a huge Earth-directed flare. Very large solar flares have been observed (such as the 1859 Carrington white light flare)… but we are still here.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">In an added twist, solar physicists are surprised by the lack of solar activity at the start of this 24th solar cycle, leading to some scientists to speculate we might be on the verge of another Maunder minimum and &#8220;Little Ice Age&#8221;. This is in stark contrast to NASA solar physicist&#8217;s 2006 prediction that this cycle will be a &#8220;doozy&#8221;.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">This leads me to conclude that we still have a long way to go when predicting solar flare events. Although space weather prediction is improving, it will be a few years yet until we can read the Sun accurately enough to say with any certainty just how active a solar cycle is going to be. So, regardless of prophecy, prediction or myth, there is no physical way to say that the Earth will be hit by any flare, let alone a big one in 2012. Even if a big flare did hit us, it will not be an extinction event. Yes, satellites may be damaged, causing secondary problems such as a GPS loss (which might disrupt air traffic control for example) or national power grids may be overwhelmed by auroral electrojets, but nothing more extreme than that.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">But hold on, to sidestep this issue, doomsayers now tell us that a large solar flare will hit us just as the Earth&#8217;s geomagnetic field weakens and reverses,or Catostrophic Earthquakes will Hit globally leaving us unprotected from the ravages of a CME…</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">by Rohit Sharma</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">to know about Solar Storms&#8230;Read The Changing moods of Sun in Gyandotcom site</div>
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<div>The driver was taking  me from  mumbai airport  to the express highway  to pune city. As we chatted on theway , it came out that he was deeply worried. He had a wife and child, and a new baby on the way &#8211; but what was the use of living, he cried, if the world would end in 2012 as predicted by the Mayan prophecies, when his new baby would be just four years old.Prophecies about the end of the world (or at the very least, civilisation as we know it) have been around forever. There was a flurry of them around 2000 AD, and another bunch for 5 May 2005, when all the planets were supposed to line up. (By the way, they didn&#8217;t line up and yep, we&#8217;re still here.)The Mayan civilisation covered the skinny bit of the Americas between North and South America, reaching from the southern states of Mexico down to western Honduras. Its Classic Period was from 250 to 900 AD, so their best years were behind them by the time of the Spanish invasion.At their peak, the Mayans had the only mature written language ever found in the Americas, spectacular and densely populated cities, and very sophisticated systems of mathematics, astronomy and calendars.They were marvelous astronomers, showing what could be done with the naked eye. Their measurements of the lunar month, the period of Venus and the year were more accurate than those of the Ancient Greeks.Which brings us to the calendar that predicts the end of the world in 2012.The Mayans had many calendars, because they saw &#8216;time&#8217; as a meshing of sacred or spiritual cycles. So while our Gregorian calendar organises days for social, administrative and commercial purposes, the Mayan calendars added a religious element. For example, each day had a patron spirit, and so could be good for travel, but bad for business.One of their several calendars was called the Long Count. It was set up around 355 BCE, and had as its chosen starting date 0.0.0.0.0, which corresponds to 11 August 3114 BCE. And on 21 December 2012, the Mayan Long Count calendar will read 13.0.0.0.0.Now here&#8217;s how it works. Our numbering system is based on 10. But the Mayans had a counting system based on 20, so most of the &#8217;slots&#8217; in their calendar had 20 potential numbers (0 to 19). The calendar read a little like the odometer in your car&#8217;s speedo (which run from 0 to 9). The extreme right slot (of five slots) would count through the days, and when it got to 19 days (0.0.0.0.19) would reset to zero, and the next slot across to the left would increase by one (to 0.0.0.1.0).So 0.0.0.0.1 was one day, and 0.0.0.1.0 was 20 days. Then 0.0.1.0.0 was about one year, 0.1.0.0.0 was about 20 years and with 1.0.0.0.0, you&#8217;ve clocked up about 400 years. And on 21 December 2012, the Mayan Long Count calendar will read 13.0.0.0.0.By the way, the time between 0.0.0.0.0 and 13.0.0.0.0 is about 5126 years. Now some Mayan archaeo-astronomers reckon that the calendar should reset back to zero and start again. But others disagree and say it should continue to 20, and then reset again.We don&#8217;t have enough information to know who is correct &#8211; but if it does go up to 20, then this completely destroys the End of Days Conspiracy Theory, as far as the year 2012 is concerned. But let&#8217;s stick to the 13 Conspiracy for the time being.The claims for 21 December 2012 cover a lot of ground. They range from &#8216;nuclear holocaust&#8217; to &#8216;Harmonic Convergence of cosmic energy flowing through the earth, cleansing it and raising it to a higher level of vibration&#8217;, and along the way they include &#8216;the death of two-thirds of humanity&#8217; and &#8216;the north and south poles will split&#8217; &#8211; you get the picture. But there are two problems with this.</div>
<div>First, when a calendar comes to the end of a cycle, it just rolls over into the next cycle. In our Western society, every year 31 December is followed, not by the End of the World, but by 1 January. So 13.0.0.0.0 in the Mayan calendar will be followed by 0.0.0.0.1 &#8211; or good-ol&#8217; 22 December 2012, with only a few shopping days left to Christmas.</div>
<div>And the second problem is that it is always remarkably difficult to make predictions, especially about the future, and things that haven&#8217;t happened yet.</div>
<div>but the polar shift,global worming catostrophic earthquakes will hit in 2012. lets findout how</div>
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<div>First and foremost, the Sun has a natural cycle with a period of approximately 11 years. During the lifetime of each cycle, the magnetic field lines of the Sun are dragged around the solar body by differential rotation at the solar equator. This means that the equator is spinning faster than the magnetic poles. As this continues, solar plasma drags the magnetic field lines around the Sun, causing stress and a build up of energy (an illustration of this is pictured). As magnetic energy increases, kinks in the magnetic flux form, forcing them to the surface. These kinks are known as coronal loops which become more numerous during periods of high solar activity.This is where the sunspots come in. As coronal loops continue to pop up over the surface, sunspots appear too, often located at the loop footpoints. Coronal loops have the effect of pushing the hotter surface layers of the Sun (the photosphere and chromosphere) aside, exposing the cooler convection zone (the reasons why the solar surface and atmosphere is hotter than the solar interior is down to the coronal heating phenomenon). As magnetic energy builds up, we can expect more and more magnetic flux to be forced together. This is when a phenomenon known as magnetic reconnection occurs.Reconnection is the trigger for solar flares of various sizes. As previously reported, solar flares from &#8220;nanoflares&#8221; to &#8220;X-class flares&#8221; are very energetic events. Granted, the largest flares my generate enough energy for 100 billion atomic explosions, but don&#8217;t let this huge figure concern you. For a start, this flare occurs in the low corona, right near the solar surface. That&#8217;s nearly 100 million miles away (1AU). The Earth is nowhere close to the blast.As the solar magnetic field lines release a huge amount of energy, solar plasma is accelerated and confined within the magnetic environment (solar plasma is superheated particles like protons, electrons and some light elements such as helium nuclei). As the plasma particles interact, X-rays may be generated if the conditions are right and bremsstrahlung is possible. (Bremsstrahlung occurs when charged particles interact, resulting in X-ray emission.) This may create an X-ray flare.</div>
<div>Apparently, on December 21st 2012, our planet will experience a powerful event. This time we&#8217;re not talking about Planet X, Nibiru or a &#8220;killer&#8221; solar flare, this event will originate deep within the core of our planet, forcing a catastrophic change in our protective magnetic field. Not only will we notice a rapid reduction in magnetic field strength, we&#8217;ll also see the magnetic poles rapidly reverse polarity (i.e. the north magnetic pole will be located over the South Pole and vice versa). So what does this mean to us? If we are to believe the doomsayers, we&#8217;ll be exposed to the vast quantities of radiation blasting from the Sun; with a reversing magnetic field comes a weakening in the Earth&#8217;s ability to deflect cosmic rays. Our armada of communication and military satellites will drop from orbit, adding to the chaos on the ground. There will be social unrest, warfare, famine and economic collapse. Without GPS, our airliners will also plough into the ground…Using the Mayan Prophecy as an excuse to create new and explosive ways in which our planet may be destroyed, 2012 doomsayers use the geomagnetic shift theory as if it is set in stone. Simply because scientists have said that it might happen within the next millennium appears to be proof enough that it will happen in four years time. Alas, although this theory has some scientific backing, there is no way that anyone can predict when geomagnetic reversal might happen to the nearest day or to the nearest million years…</div>
<div>Firstly, let&#8217;s differentiate between geomagnetic reversal and polar shift. Geomagnetic reversal is the change in the magnetic field of the Earth, where the magnetic north pole shifts to the South Polar Region and the south magnetic pole shifts to the North Polar Region. Once this process is complete, our compasses would point toward Antarctica, rather than northern Canada. Polar shift is considered to be a less likely event that occurs a few times in the evolutionary timescale of the Solar System. There are a couple of examples of planets that have suffered a catastrophic polar shift, including Venus (which rotates in an opposite direction to all the other planets, therefore it was flipped upside down by some huge event, such as a planetary collision) and Uranus (which rotates on its side, having been knocked off-axis by an impact, or some gravitational effect caused by Jupiter and Saturn). Many authors (including the doomsayers themselves) often cite both geomagnetic reversal and polar shift as being one of the same thing. This isn&#8217;t the case.</div>
<div>So, on with geomagnetic reversal…</div>
<div>How often does it happen?</div>
<div>The Earths interior</div>
<div>The reasons behind the reversal of the magnetic poles is poorly understood, but it is all down to the internal dynamics of Planet Earth. As our planet spins, the molten iron in the core flows freely, forcing free electrons to flow with it. This convective motion of charged particles sets up a magnetic field which bases its poles in the North and South Polar Regions (a dipole). This is known as the dynamo effect. The resulting magnetic field approximates a bar magnet, allowing the field to envelop our planet.</div>
<div>This magnetic field passes through the core to the crust and pushes into space as the Earth&#8217;s magnetosphere, a protective bubble constantly being buffeted by the solar wind. As the solar wind particles are usually charged, the Earth&#8217;s powerful magnetosphere deflects the particles, only allowing them into the polar cusp regions where the polar magnetic fieldlines become &#8220;open.&#8221; The regions at which these energetic particles are allowed to enter glow as aurorae.</div>
<div>Usually this situation can last for aeons (a stable magnetic field threaded through the North and South Polar Regions), but occasionally, the magnetic field is known to reverse and alter in strength. Why is this?</div>
<div>Earths polarity reversals over the last 160 million years. Black = normal polarity, White = reversed polarity.</div>
<div>Again, we simply do not know. We do know that this magnetic pole flip-flop has occurred many times in the last few million years, the last occurred 780,000 years ago according to ferromagnetic sediment. A few scaremongering articles have said geomagnetic reversal occurs with &#8220;clockwork regularity&#8221; – this is simply not true. As can be seen from the diagram (left), magnetic reversal has occurred fairly chaotically in the last 160 million years. Long-term data suggests that the longest stable period between magnetic &#8220;flips&#8221; is nearly 40 million years (during the Cretaceous period over 65 million years BC) and the shortest is a few hundred years.</div>
<div>Some 2012 theories suggest that the Earth&#8217;s geomagnetic reversal is connected to the natural 11-year solar cycle. Again, there is absolutely no scientific evidence to support this claim. No data has ever been produced suggesting a Sun-Earth magnetic polarity change connection.</div>
<div>So, already this doomsday theory falters in that geomagnetic reversal does not occur with &#8220;clockwork regularity,&#8221; and it has no connection with solar dynamics. We are not due a magnetic flip as we cannot predict when the next one is going to occur, magnetic reversals occur at seemingly random points in history.What causes geomagnetic reversal?</div>
<div>The model Earth, can a magnetic field be modelled in the lab?</div>
<div>Research is afoot to try to understand the internal dynamics of our planet. As the Earth spins, the molten iron inside churns and flows in a fairly stable manner for millennia. For some reason during geomagnetic reversal, some instability causes an interruption to the steady generation of a global magnetic field, causing it to flip-flop between the poles.</div>
<div>In a previous Gyandotcom the end of days 2012 Article, we discussed the efforts of geophysicist Dan Lathrop&#8217;s attempts to create his own &#8220;model Earth,&#8221; setting a 26 tonne ball (containing a molten iron analogue, sodium) spinning to see if the internal motion of the fluid could set up a magnetic field. This huge laboratory experiment is testament to the efforts being put into understanding how our Earth even generates a magnetic field, let alone why it randomly reverses.</div>
<div>A minority view (which, again is used by doomsayers to link geomagnetic reversal with Planet X) is that there may be some external influence that causes the reversal. You will often see associated with the Planet X/Nibiru claims that should this mystery object encounter the inner Solar System during its highly elliptical orbit, the magnetic field disturbance could upset the internal dynamics of the Earth (and the Sun, possibly generating that &#8220;killer&#8221; solar flare I discussed back in June in my article the mood of sun is changing). This theory is a poor attempt to link several doomsday scenarios with a common harbinger of doom (i.e. Planet X). There is no reason to think the strong magnetic field of the Earth can be influenced by any external force, let alone a non-existent planet (or was that a brown dwarf?).</div>
<div><strong>The magnetic field strength waxes and wanes…</strong></div>
<div>Variations in geomagnetic field in western US since last reversal. The vertical dashed line is the critical value of intensity below which Guyodo and Valet (1999) consider several directional excursions to have occurred.</div>
<div>New research into the Earth&#8217;s magnetic field was published recently in the September 26th issue of Gyandotcom, suggesting that the Earth&#8217;s magnetic field isn&#8217;t as simple as we once believed. In addition to the North-South dipole, there is a weaker magnetic field spread around the planet, probably generated in the outer core of the Earth.</div>
<div>The Earth&#8217;s magnetic field is measured to vary in field strength and it is a well known fact that the magnetic field strength is currently experiencing a downward trend. The new research paper, co-authored by geochronologist Brad Singer of the University of Wisconsin, suggests that the weaker magnetic field is critical to geomagnetic reversal. Should the stronger dipole (north-south) field reduce below the magnetic field strength of this usually weaker, distributed field, a geomagnetic reversal is possible.</div>
<div>&#8220;The field is not always stable, the convection and the nature of the flow changes, and it can cause the dipole that&#8217;s generated to wax and wane in intensity and strength,&#8221; Singer said. &#8220;When it becomes very weak, it&#8217;s less capable of reaching to the surface of the Earth, and what you start to see emerge is this non-axial dipole, the weaker part of the field that&#8217;s left over.&#8221; Singer&#8217;s research group analysed samples of ancient lava from volcanoes in Tahiti and Germany between 500,000 and 700,000 years ago. By looking at an iron-rich mineral called magnetite in the lava, the researchers were able to deduce the direction of the magnetic field.</div>
<div>The spin of the electrons in the mineral is governed by the dominant magnetic field. During times of strong dipolar field, these electrons pointed toward the magnetic North Pole. During times of weak dipolar field, the electrons pointed to wherever the dominant field was, in this case the distributed magnetic field. They think that when the weakened dipolar field drops below a certain threshold, the distributed field pulls the dipolar field off-axis, causing a geomagnetic shift.</div>
<div>&#8220;The magnetic field is one of the most fundamental features of the Earth,&#8221; Singer said. &#8220;But it&#8217;s still one of the biggest enigmas in science. Why [the flip] happens is something people have been chasing for more than a hundred years.&#8221;</div>
<div><strong>Our meandering magnetic pole</strong></div>
<div>The movement of Earth&#8217;s north magnetic pole across the Canadian arctic, 1831&#8211;2001 (Geological Survey of Canada)</div>
<div>Although there appears to be a current downward trend in magnetic field strength, the current magnetic field is still considered to be &#8220;above average&#8221; when compared with the variations measured in recent history. According to researchers at Scripps Institution of Oceanography, San Diego, if the magnetic field continued to decrease at the current trend, the dipolar field would effectively be zero in 500 years time. However, it is more likely that the field strength will simply rebound and increase in strength as it has done over the last several thousand years, continuing with its natural fluctuations.</div>
<div>The positions of the magnetic poles are also known to be wondering over Arctic and Antarctic locations. Take the magnetic north pole it has accelerated north over the Canadian plains from 10 km per year in the 20th Century to 40 km per year more recently. It is thought that if the point of magnetic north continues this trend, it will exit North America and enter Siberia in a few decades time. This is not a new phenomenon however. Ever since James Ross&#8217; discovery of the location of the north magnetic pole for the first time in 1831, it&#8217;s location has meandered hundreds of miles (even though today&#8217;s measurements show some acceleration).</div>
<div style="text-align:center;"><strong>So, no doomsday then?</strong></div>
<div>Apparently, the world is going to end on December 21st, 2012. Yes, you read correctly, in some way, shape or form, the Earth (or at least a large portion of humans on the planet) will cease to exist. Stop planning your careers, don&#8217;t bother buying a house, and be sure to spend the last years of your life doing something you always wanted to do but never had the time. Now you have the time, four years of time, to enjoy yourselves before… the end.</div>
<div><strong>So what is all this crazy talk?</strong></div>
<div><strong> </strong>We&#8217;ve all heard these doomsday predictions before even in gyandotcom i&#8217;ve written article on mayan calender prophacy, we&#8217;re still here, and the planet is still here, <strong>why is 2012 so important?</strong> Well, the Mayan calendar stops at the end of the year 2012, churning up all sorts of religious, scientific, astrological and historic reasons why this calendar foretells the end of life as we know it. The Mayan Prophecy is gaining strength and appears to be worrying people in all areas of society. Forget Nostradamus, forget the Y2K bug, forget the credit crunch, this event is predicted to be huge and many wholeheartedly believe this is going to happen for real. Planet X could even be making a comeback.</div>
<div>Geomagnetic reversal is an engrossing area of geophysical research that will continue to occupy physicists and geologists for many years to come. Although the dynamics behind this event are not fully understood, there is absolutely no scientific evidence supporting the claim that there could be a geomagnetic reversal around the time of December 21st, 2012.</div>
<div>Besides, the effects of such a reversal have been totally over-hyped. Should we experience geomagnetic reversal in our lifetimes (which we probably won&#8217;t), it is unlikely that we&#8217;ll be cooked alive by the Solar Wind, or be wiped out by cosmic rays. It is unlikely that we&#8217;ll suffer any mass extinction event (after all, early man, homo erectus, lived through the last geomagnetic shift, apparently with ease). We&#8217;ll most likely experience aurorae at all latitudes whilst the dipolar magnetic field settles down to its new, reversed state, and there might be a small increase in energetic particles from space (remember, just because the magnetosphere is weakened, doesn&#8217;t mean we wont have magnetic protection), but we&#8217;ll still be (largely) protected by our thick atmosphere.</div>
<div>Satellites may malfunction and migrating birds may become confused, but to predict world collapse is a hard pill to swallow.</div>
<div><strong>In conclusion:</strong></div>
<div>Geomagnetic reversal is chaotic in nature.</div>
<div>There is no way we can predict it.</div>
<div>Simply because the magnetic field of the Earth is weakening does not mean it is near collapse. Geomagnetic field strength is &#8220;above average&#8221; if we compare today&#8217;s measurements with the last few million years.</div>
<div>The magnetic poles are not set in geographical locations, they move (at varying speeds) and have done ever since measurements began.</div>
<div>There is no evidence to suggest external forcing of internal geomagnetic dynamics of the Earth. Therefore there is no evidence of the solar cycle-geomagnetic shift connection. Don&#8217;t get me started on Planet X.</div>
<div>So, do you think there will be a geomagnetic reversal event in 2012? I thought not.</div>
<div>First and foremost, the Sun has a natural cycle with a period of approximately 11 years. During the lifetime of each cycle, the magnetic field lines of the Sun are dragged around the solar body by differential rotation at the solar equator. This means that the equator is spinning faster than the magnetic poles. As this continues, solar plasma drags the magnetic field lines around the Sun, causing stress and a build up of energy (an illustration of this is pictured). As magnetic energy increases, kinks in the magnetic flux form, forcing them to the surface. These kinks are known as coronal loops which become more numerous during periods of high solar activity.</div>
<div>This is where the sunspots come in. As coronal loops continue to pop up over the surface, sunspots appear too, often located at the loop footpoints. Coronal loops have the effect of pushing the hotter surface layers of the Sun (the photosphere and chromosphere) aside, exposing the cooler convection zone (the reasons why the solar surface and atmosphere is hotter than the solar interior is down to the coronal heating phenomenon). As magnetic energy builds up, we can expect more and more magnetic flux to be forced together. This is when a phenomenon known as magnetic reconnection occurs.</div>
<div>Reconnection is the trigger for solar flares of various sizes. As previously reported, solar flares from &#8220;nanoflares&#8221; to &#8220;X-class flares&#8221; are very energetic events. Granted, the largest flares my generate enough energy for 100 billion atomic explosions, but don&#8217;t let this huge figure concern you. For a start, this flare occurs in the low corona, right near the solar surface. That&#8217;s nearly 100 million miles away (1AU). The Earth is nowhere close to the blast.</div>
<div>As the solar magnetic field lines release a huge amount of energy, solar plasma is accelerated and confined within the magnetic environment (solar plasma is superheated particles like protons, electrons and some light elements such as helium nuclei). As the plasma particles interact, X-rays may be generated if the conditions are right and bremsstrahlung is possible. (Bremsstrahlung occurs when charged particles interact, resulting in X-ray emission.) This may create an X-ray flare.</div>
<div>The biggest problem with an X-ray flare is that we get little warning when it is going to happen as X-rays travel at the speed of light (one of the record breaking 2003 solar flares is pictured left). X-rays from an X-class flare will reach the Earth in around eight minutes. As X-rays hit our atmosphere, they are absorbed in the outermost layer called the ionosphere. As you can guess from the name, this is a highly charged, reactive environment, full of ions (atomic nuclei, and free electrons).</div>
<div>During powerful solar events such as flares, rates of ionization between X-rays and atmospheric gases increase in the D and E region layers of the ionosphere. There is a sudden surge in electron production in these layers. These electrons can cause interference to the passage of radio waves through the atmosphere, absorbing short wave radio signals (in the high frequency range), possibly blocking global communications. These events are known as &#8220;Sudden Ionospheric Disturbances&#8221; (or SIDs) and they become commonplace during periods of high solar activity. Interestingly, the increase in electron density during a SID boosts the propagation of Very Low Frequency (VLF) radio, a phenomenon scientists use to measure the intensity of X-rays coming from the Sun.X-ray solar flare emissions are only part of the story. If the conditions are right, a coronal mass ejection (CME) might be produced at the site of the flare (although either phenomenon can occur independently). CMEs are slower than the propagation of X-rays, but their global effects here on Earth can be more problematic. They may not travel at the speed of light, but they still travel fast; they can travel at a rate of 2 million miles per hour (3.2 million km/hr), meaning they may reach us in a matter of hours.</div>
<div>This is where much effort is being put into space weather prediction. We have a handful of spacecraft sitting between the Earth and the Sun at the Earth-Sun Lagrangian (L1) point with sensors on board to measure the energy and intensity of the solar wind. Should a CME pass through their location, energetic particles and the interplanetary magnetic field (IMF) can be measured directly. One mission called the Advanced Composition Explorer (ACE) sits in the L1 point and provides scientists with up to an hour notice on the approach of a CME. ACE teams up with the Solar and Heliospheric Observatory (SOHO) and the Solar TErrestrial RElations Observatory (STEREO), so CMEs can be tracked from the lower corona into interplanetary space, through the L1 point toward Earth. These solar missions are actively working together to provide space agencies with advanced notice of an Earth-directed CME.</div>
<div>So what if a CME reaches Earth? For a start, much depends on the magnetic configuration of the IMF (from the Sun) and the geomagnetic field of the Earth (the magnetosphere). Generally speaking, if both magnetic fields are aligned with polarities pointing in the same direction, it is highly probable that the CME will be repelled by the magnetosphere. In this case, the CME will slide past the Earth, causing some pressure and distortion on the magnetosphere, but otherwise passing without a problem. However, if the magnetic field lines are in an anti-parallel configuration (i.e. magnetic polarities in opposite directions), magnetic reconnection may occur at the leading edge of the magnetosphere.</div>
<div>In this event, the IMF and magnetosphere will merge, connecting the Earth&#8217;s magnetic field with the Sun&#8217;s. This sets the scene for one of the most awe inspiring events in nature: the aurora.</div>
<div>Satellites in Peril</div>
<div>As the CME magnetic field connects with the Earth&#8217;s, high energy particles are injected into the magnetosphere. Due to solar wind pressure, the Sun&#8217;s magnetic field lines will fold around the Earth, sweeping behind our planet. The particles injected in the &#8220;dayside&#8221; will be funnelled into the polar regions of the Earth where they interact with our atmosphere, generating light as aurorae. During this time, the Van Allen belt will also become &#8220;super-charged&#8221;, creating a region around the Earth that could cause problems to unprotected astronauts and any unshielded satellites.As if the radiation from the Van Allen belt wasn&#8217;t enough, satellites could succumb to the threat of an expanding atmosphere. As you&#8217;d expect, as if the Sun hits the Earth with X-rays and CMEs, there will be inevitable heating and global expansion of the atmosphere, possibly encroaching into satellite orbital altitudes. If left unchecked, an aerobraking effect on satellites could cause them to slow and drop in altitude. Aerobraking has been used extensively as a space flight tool to slow spacecraft down when being inserted into orbit around another planet, but this will have an adverse effect on satellites orbiting Earth as any slowing of velocity could cause it to re-enter the atmosphere.</div>
<div>We Feel the Effects on the Ground Too</div>
<div>Although satellites are on the front line, if there is a powerful surge in energetic particles entering the atmosphere, we may feel the adverse effects down here on Earth too. Due to the X-ray generation of electrons in the ionosphere, some forms of communication may become patchy (or be removed all together), but this isn&#8217;t all that can happen. Particularly in high-latitude regions, a vast electric current, known as an &#8220;electrojet&#8221;, may form through the ionosphere by these incoming particles. With an electric current comes a magnetic field. Depending on the intensity of the solar storm, currents may be induced down here on the ground, possibly overloading national power grids. On March 13th 1989, six million people lost power in the Quebec region of Canada after a huge increase in solar activity caused a surge from ground-induced currents. Quebec was paralysed for nine hours whilst engineers worked on a solution to the problem.Can Our Sun Produce a Killer Flare?</div>
<div>The short answer to this is &#8220;no&#8221;.</div>
<div>The longer answer is a little more involved. Whilst a solar flare from out Sun, aimed directly at us, could cause secondary problems such as satellite damage and injury to unprotected astronauts and blackouts, the flare itself is not powerful enough to destroy Earth, certainly not in 2012. I dare say, in the far future when the Sun begins to run out of fuel and swell into a red giant, it might be a bad era for life on Earth, but we have a few billion years to wait for that to happen. There could even be the possibility of several X-class flares being launched and by pure bad luck we may get hit by a series of CMEs and X-ray bursts, but none will be powerful to overcome our magnetosphere, ionosphere and thick atmosphere below.</div>
<div>&#8220;Killer&#8221; solar flares have been observed on other stars. In 2006, NASA&#8217;s Swift observatory saw the largest stellar flare ever observed 135 light-years away. Estimated to have unleashed an energy of 50 million trillion atomic bombs, the II Pegasi flare will have wiped out most life on Earth if our Sun fired X-rays from a flare of that energy at us. However, our Sun is not II Pegasi. II Pegasi is a violent red giant star with a binary partner in a very close orbit. It is believed the gravitational interaction with its binary partner and the fact II Pegasi is a red giant is the root cause behind this energetic flare event.</div>
<div>Doomsayers point to the Sun as a possible Earth-killer source, but the fact remains that our Sun is a very stable star. It does not have a binary partner (like II Pegasi), it has a predictable cycle (of approximately 11 years) and there is no evidence that our Sun contributed to any mass extinction event in the past via a huge Earth-directed flare. Very large solar flares have been observed (such as the 1859 Carrington white light flare)… but we are still here.</div>
<div>In an added twist, solar physicists are surprised by the lack of solar activity at the start of this 24th solar cycle, leading to some scientists to speculate we might be on the verge of another Maunder minimum and &#8220;Little Ice Age&#8221;. This is in stark contrast to NASA solar physicist&#8217;s 2006 prediction that this cycle will be a &#8220;doozy&#8221;.</div>
<div>This leads me to conclude that we still have a long way to go when predicting solar flare events. Although space weather prediction is improving, it will be a few years yet until we can read the Sun accurately enough to say with any certainty just how active a solar cycle is going to be. So, regardless of prophecy, prediction or myth, there is no physical way to say that the Earth will be hit by any flare, let alone a big one in 2012. Even if a big flare did hit us, it will not be an extinction event. Yes, satellites may be damaged, causing secondary problems such as a GPS loss (which might disrupt air traffic control for example) or national power grids may be overwhelmed by auroral electrojets, but nothing more extreme than that.</div>
<div>But hold on, to sidestep this issue, doomsayers now tell us that a large solar flare will hit us just as the Earth&#8217;s geomagnetic field weakens and reverses,or Catostrophic Earthquakes will Hit globally leaving us unprotected from the ravages of a CME…</div>
<div><strong>by Rohit Sharma</strong></div>
<div>to know about Solar Storms&#8230;Read The Changing moods of Sun in Gyandotcom site</div>
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<title><![CDATA[Att vara i centrum av LXDE]]></title>
<link>http://martinbagge.wordpress.com/2009/09/29/att-vara-i-centrum-av-lxde/</link>
<pubDate>Tue, 29 Sep 2009 19:36:34 +0000</pubDate>
<dc:creator>br0ther</dc:creator>
<guid>http://martinbagge.wordpress.com/2009/09/29/att-vara-i-centrum-av-lxde/</guid>
<description><![CDATA[När Debian är ett stort projekt med tusentals utvecklare och ännu fler som bidrar utan att vara en d]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>När Debian är ett stort projekt med tusentals utvecklare och ännu fler som bidrar utan att vara en del av själva apparaten och regelverket så är LXDE något helt annat. <a href="http://www.lxde.org">LXDE</a> är fortfarande ganska så utan regler, det finns ingen tydlig ledare och gott om informella viljor och visioner.</p>
<p>LXDE är alltså ett försök att skapa det som i Linux-sammanhang kallas för fönstermiljö eller skrivbordsmiljö med kravet att allting ska gå att köra på lågpresterande maskiner, äldre datorer eller nedbantade bärbara datorer och dylikt. LXDE nyttjar i grunden <a href="http://icculus.org/openbox/2/">Openbox</a> som sin fönsterhanterare och det finns en oerhört snabb och smidig menyhanterare som är det absolut minsta man kan ha igång för att ens kunna kalla det för LXDE. Allting är fristående komponenter men med samma grundfilosfi enligt utvecklarna.</p>
<p>Jag ramlade över projektet förra hösten (typ november/december eller så) när <a href="http://www.kde.org">KDE</a> 4.x blev alldeles för tung för min Fujitsu Siemens Lifebook B-2562 från 2001. Installerade LXDE på prov och det var helt skönt bara. Allting flöt på och det var inget större besvär att använda de program jag brukar. Men så var det det här med översättningen till svenska. Den var ju inte dålig precis men den var ju inte komplett heller. Så på menyn &#8220;Visa&#8221; i PCManFM hittade jag så väl <em>&#8220;Visa som ikoner&#8221;</em> som <em>&#8220;View as compact list&#8221;</em>. Till slut så hade jag irriterat mig på det till den grad att jag letade upp filerna och sändlistan för översättningar, sen skickade jag ut frågan om det var nån som översatte till svenska och förklarade att jag tänkte börja göra det. Så klart visade det sig att <a href="http://www.danielnylander.se/2009/01/06/oversattning-av-lxde/">Daniel Nylander</a> (som bidrar till massor med svenska översättningar men som jag stött på i arbetet med Debians installationsprogram bl.a.) hängde på listan även han. Runt nyår så delade vi alla LXDE-komponenter och gjorde hälften var, de han översätte läste jag och vice versa. Det tog typ två dagar sen var hela arbetet klart och svenska var komplett översatt och viss kvalitetsförbättring kunde skådas.</p>
<p>Men att bara göra själva översättningen är ju ingenting i och med att det är vad jag redan gör i Debian. I fallet LXDE så stannade jag kvar och det anslöt fler och fler översättare från andra språk, problemet var bara att systemet och bristen på tid från andra involverade i projeketet var väldigt låg så efter att jag lotsat folk rätt och hjälpt dem på traven så fick jag tillstånd att sända färdiga översättningar rakt in i koden för LXDE. Ett ansvar och ett erkännande. Jag övervakar sedan dess alla rapporter i felrapporteringen och tar hand om översättarnas filer och kollar så att de följer det regelverk som finns och funkar att använda. Sen lägger jag till de i koden och aktiverar. Fortfarande i februari var det här arbetet rätt träligt och svårt att ha att göra med, det fanns en diskussion i projektet om att använda sig av något webbaserat system för att sköta översättningarna. Man valde mer eller mindre mellan två; <a href="http://www.transifex.net">Transifex</a> och <a href="https://launchpad.net/rosetta">Rosetta</a>. Trasifex används flitigt inom Red Hat-sfären och Rosetta är en produkt kopplad till Ubuntus launchpad. Jag var bara bekant med Rosetta då och inte särskilt imponerad. Men när inget hände så gjorde jag som man gör i andra projekt när det står stilla, jag byggde en lösning på <a href="http://pootle.lxde.bsnet.se/projects/lxde">Pootle</a> &#8211; kopplade mitt konto för koden till servern som donerades av <a href="http://www.bthstudent.se">Blekinge studentkår</a> och satte ihop <a href="http://wiki.lxde.org/en/Pootle_crash_course">en kort instruktion på hur man översätter med Pootle</a>.<br />
Sedan dess har jag gjort ungefär 350 bidrag till LXDE-projektets kodbas.</p>
<p>Att gå från Debians välstrukturerade men lite stappliga värld där allting styrs utifrån det sociala kontrakter och ungefär 15 år av erfarenhet och tusentals personer som åtminstone bryr sig om sin lilla del till LXDE med en handfull starkt bidragande personer och inget regelverk är skoj och jobbigt samtidigt. En stor del av huvudutvecklarna i LXDE sitter i sydöstra Asien, Taiwan och Hong kong. Någon enstaka i Australien. Utöver det är det jag och två eller tre till i Europa och ungefär två från Amerika. Medan utvecklarna bygger på nästa variant av programmen eller lägger till alldeles nya program som kan vara bra och ha så fortsätter jag att samordna alla våra översättare, från svenska som jag tar hand om själv via <a href="http://pootle.lxde.bsnet.se/he/lxde/">Hebreiska</a> med två personer till <a href="http://pootle.lxde.bsnet.se/zh_TW/lxde/">Taiwanesisk Kinesiska</a> och <a href="http://pootle.lxde.bsnet.se/pt_BR/lxde/">Brasiliansk Portugisiska</a> med ett helt översättar team och massor med struktur. Det är utmanande att kunna säga till översättarna att nu har ni två veckor på er att uppdatera filen för <em>GPicView</em> sedan kommer vi att skeppa en ny version, är ni inte klara då så kommer inte ert språk att ha en komplett översättning. Men det är samtidigt oerhört tillfredsställande att se hur de sluter upp, de inte bara tar hand om de nya texterna utan det finns en kärlek till helheten så det sker uppdateringar i de redan befintliga översättningarna då och då med. LXDE är idag tillgängligt på <em>nästan 30 språk</em>. Lägger man till att en del språk är nästan helt översatta och att jag inte har pushat översättarna där så passerar vi lätt över 40 språk runt hela jorden, Afrika är den världsdel som är sämst representerad tyvärr. Från de Europeiska storspråken <a href="http://pootle.lxde.bsnet.se/de/lxde/">Tyska</a>, <a href="http://pootle.lxde.bsnet.se/fr/lxde/">Franska</a> och <a href="http://pootle.lxde.bsnet.se/es/lxde/">Spanska</a> via minispråket <a href="http://pootle.lxde.bsnet.se/frp/lxde/">Arpitian</a> i Frankrike, de båda <a href="http://pootle.lxde.bsnet.se/nb/lxde/">Norska</a> <a href="http://pootle.lxde.bsnet.se/nn/lxde/">varianterna</a>, <a href="http://pootle.lxde.bsnet.se/pl/lxde/">Polska</a> och <a href="http://pootle.lxde.bsnet.se/sr/lxde/">Serbiska</a> till Hebreiska, <a href="http://pootle.lxde.bsnet.se/ar/lxde/">Arabiska</a>, <a href="http://pootle.lxde.bsnet.se/ur/lxde/">Urdu</a> och <a href="http://pootle.lxde.bsnet.se/ms/lxde/">Malajiska</a> så har vi stöd för att visa LXDE på modersmålet för över <strong>en och en halv miljard människor</strong>. Lägger man därtill att många klarar sig bra med Engelska eller något av de särskilda språken vi översatt till som andra språk blir siffran helt absurd. Detta har vi åstadkommit på ett halvår.</p>
<p>En komplett översättning från noll i LXDE tar ungefär två till tre dagar att göra, det beror lite på hur mycket tid man kan lägga per dag och hur van man är vid att göra översättningar (och på språket man nyttjar i vissa fall =)). vi började med ungefär 20 språk och försöker nu hålla översättningar för nästan 50 språk uppdaterade, vissa är helt övergivna emedan andra bara släpar efter litet. Det är sjukt kul. Det är väldigt intressant vad lite instruktioner och målmedvetet tjatande kan göra dessutom. Det är i nio fall av tio så att personer kommit till oss som projekt och bett om att få översätta än tvärtom. Det finns en vilja.</p>
<p>Under hösten kommer vi troligen att ta nästa steg i att automatisera och strukturera översättandet, Transifex verkar har vuxit till sig och kan ersätta Pootle (som har en hel del irriterande egenheter och begränsningar) som vårt huvudverktyg. Hur min roll som koordinator utvecklas i och med det är svårt att sia om, å andra sidan kan jag ibland känna att det ska bli skönt att få göra något annat på den tid jag lägger på att få ihop LXDE och alla dess viljor så att vi kan leverera. Nästa version av LXDE beräknas ramla ut under senhösten dessutom, även det är ju oerhört kittlande.</p>
<p>Läs även andra bloggares åsikter om <a rel="tag" href="http://bloggar.se/om/LXDE">LXDE</a>, <a rel="tag" href="http://bloggar.se/om/pcmanfm">pcmanfm</a>, <a rel="tag" href="http://bloggar.se/om/pootle">pootle</a>, <a rel="tag" href="http://bloggar.se/om/transifex">transifex</a>, <a rel="tag" href="http://bloggar.se/om/open+source">open source</a>, <a rel="tag" href="http://bloggar.se/om/%F6ppen+k%E4llkod">öppen källkod</a>, <a rel="tag" href="http://bloggar.se/om/%F6vers%E4ttning">översättning</a>, <a rel="tag" href="http://bloggar.se/om/l10n">l10n</a></p>
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<title><![CDATA[Internacjonalizacja w grails]]></title>
<link>http://nyfi.wordpress.com/2009/09/21/internacjonalizacja-w-grails/</link>
<pubDate>Mon, 21 Sep 2009 14:58:33 +0000</pubDate>
<dc:creator>nyfi</dc:creator>
<guid>http://nyfi.wordpress.com/2009/09/21/internacjonalizacja-w-grails/</guid>
<description><![CDATA[Kolejny krótki rozdział książki Definitive guide to grails. Tym razem autorzy poruszają kwestię loka]]></description>
<content:encoded><![CDATA[Kolejny krótki rozdział książki Definitive guide to grails. Tym razem autorzy poruszają kwestię loka]]></content:encoded>
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<title><![CDATA[Att vara en del av Debian GNU/Linux]]></title>
<link>http://martinbagge.wordpress.com/2009/09/19/att-vara-en-del-av-debian-gnulinux/</link>
<pubDate>Sat, 19 Sep 2009 13:31:44 +0000</pubDate>
<dc:creator>br0ther</dc:creator>
<guid>http://martinbagge.wordpress.com/2009/09/19/att-vara-en-del-av-debian-gnulinux/</guid>
<description><![CDATA[Hade tänkt skriva den här fortsättningsposten under torsdagen och publicera den igår men så blev det]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Hade tänkt skriva den här fortsättningsposten under torsdagen och publicera den igår men så blev det inte.</p>
<p>Jag skriver alltså ned lite tankar och funderingar baserat på mitt deltagande i projekt som har någon typ av bas i öppen källkod. Det här inlägget tar upp hur det är att arbeta för <a href="http://www.debian.org">Debian</a>.</p>
<p>Debian har alltså varit mitt första val av distribution i ganska många år tillbaka nu (även om jag har experimenterat kort med andra) men steget från att använda distributionen till att hjälpa andra att använda den till att ta hand om sin installation till att skicka felrapporter till att försöka lösa fel i felrapporterna till att faktiskt och rent bidra till att distributionen förbättras och/eller växer är ju helt egna delar i det här.</p>
<p>Debians breda användarbas är en bra grejj som jag verkligen gillar. Om jag ska göra något så har ofta någon annan gjort ungefär samma sak, så himlans unik är man ju inte i sina önskningar. Det är helt enkelt väldigt lätt att få hjälp. Några snabba slagningar med en sökmotor brukar vara vad som behövs. Ibland får jag väl ta hjälp av en eller annan sändlista eller kanske använda mig av chattmöjligheten. Men hjälpen är oftast inte långt borta, det är vitkigt.</p>
<p>Så jag bidrar med goda tankar för andra som ska göra saker som jag gjort, jag hjälper gärna till med allmänna funderingar eller raka råd på ex. <a href="http://lists.debian.org/debian-user-swedish/">den svenska sändlistan för Debiananvändare</a> eller deltar sporadiskt i chattsessionerna på IRC. I mån av tid.</p>
<p>I maj 2008 hände något speciellt dock. Jag kan inte svära på exakt vad det var som hände men av någon anledning så öppnade jag källfilen till översättningen för något program och insåg hur enkelt det var att själv fixa till eller utöka översättningen.<br />
När jag kollar i arkivet verkar det faktiskt som att<a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=482459"> mitt första bidrag i karusellen med översättningar</a> var för TZData, alltså paketet som håller reda på tidszoner och platser och sånt. Kan inte för mitt liv påminna mig om varför jag stötte på något besvär med den men så är det ibland.</p>
<p>Efter några stapplande steg i leta upp information om hur översättningsprylen görs i Debian så hittade jag fram till sändlistan <a href="http://lists.debian.org/debian-i18n/">debian-i18n</a> som är någon form av sammanhållande länk mellan alla översättare som hjälper Debian att finnas tillgängligt på så många språk. Deras insats i sig sprids sedan till en mängd olika system som använder sig av Debians översättningar så mina bidrag kan numera hittas en bra bit utanför Debianvärlden. I sanning en märklig tanke.</p>
<p>Sedan maj-juni 2008 har jag nästan varje vecka bidragit till att flytta fram positionerna för Svenska språket i Debian. Jag har främst jobbat med den delen som kallas <a href="http://www.debian.org/intl/l10n/po-debconf/sv">debconf</a>, informationsmeddelandena som visas när användaren installerar nya eller uppdaterar redan installerade paket. En vanlig debconf-översättning tar mellan 30 och 60 minuter att göra, i vissa fall behöver jag kolla upp vissa termer som kan vara knepiga att översätta &#8211; ett bra exempel på en samling med såna är de som tillhör <a href="http://sv.wikipedia.org/wiki/Kerberos_%28datas%C3%A4kerhet%29">Kerberos</a>sfären. Det finns en hel del märkliga begrepp som är fullt normala att använda inom Kerberos och att få in de i vanlig svenska meningsbyggnad är inte helt enkelt. Det känns som att jag vänder mig ut och in varje gång jag ska uppdatera en påbörjad Kerberosöversättning.</p>
<p>Största enskilda insats som jag gjort för Debian är nog dock <a href="http://www.debian.org/releases/stable/releasenotes.sv.html">Kommentarer till utgåvan Lenny</a> som tog närmare en veckas jobb, mycket av texten kunde kopieras från förra versionen som Daniel Nylander gjorde. Kommentarerna till utgåvan är ett oerhört viktigt dokument av precis samma anledning som att andelen översatta debconf-texter är viktiga. Kommentarer till utgåvan beskriver viktiga ändringar mellan utgåvor men det beskriver och rekomenderade installations- och uppgraderingsprocesser som bör beaktas av användaren. Det är alltså ett dokument som många personer kan förväntas titta på innan de gör sin installation eller möjligen under tiden av installationsprocessen. Att den finns på svenska är ett gott stöd. För debconf-texterna gäller att det är ett av de mest omedelbra ansiktena utåt för Debian till användarna. Utan komplett översättning i informationstexterna saknas en brygga för användarna. Den svenska översättningen av debconf är idag nästan helt komplett, till nästa version av Debian så är det min fasta övertygelse att svenska är ett av de språk som är helt kompletta, utöver engelska brukar endast franska, protugisiska och tyska vara kompletta. Fjäder i hatten!</p>
<p>Just debconf och de stora grunddokumenten för Debian är &#8220;enkla&#8221; att hålla reda på genom att det finns en rad verktyg som visar hur väl översatt dokumentet är, rent beräkningsmässigt då inte kvalitetsmässigt. Genom samordningen på sändlistan debian-i18n så blir översättarna uppdaterade på när saker och ting måste vara fördigt och genom att använda särskilda sändlistor för språken som översätts till kan flera personer dela på arbetet. Ett problem för svenskan är att vi är ganska få som bidrar, framför allt saknas korrekturläsningen vilket jag tror att vi skulle ha nytta av. Med lite fler personer i systemet så kunde vi införa det kravsteget med. På det hela taget är det ett enkelt och billigt sätt att bidra tillbaka till ditt favoritprojekt att skriva svenska översättningar. Det bidrar till att tröskeln för andra blir lägre när de ska börja använda systemet och det i sin tur kan vara en del i att bredda användningen av öppna system, Debian eller något annat. Att göra det för Debian innebär att du får lite extra hjälp med strukturer och regleringar som i vissa fall saknas eller inte funkar så bra i andra projekt.</p>
<p>Jag stannar där för nu. Nästa steg blir att skriva om hur jag jobbar med LXDE, ett projekt jag bara varit en del av i typ åtta månader.</p>
<p>Läs även andra bloggares åsikter om <a href="http://bloggar.se/om/%F6ppen+k%E4llkod" rel="tag">öppen källkod</a>, <a href="http://bloggar.se/om/open+source" rel="tag">open source</a>, <a href="http://bloggar.se/om/debian" rel="tag">debian</a>, <a href="http://bloggar.se/om/%F6ers%E4ttning" rel="tag">öersättning</a>, <a href="http://bloggar.se/om/l10n" rel="tag">l10n</a></p>
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<title><![CDATA[ATM &amp; Credit Card Cloning Fraud. Gyandotcom Investigates.]]></title>
<link>http://gyandotcom.wordpress.com/2009/09/01/atm-credit-card-cloning-fraud-gyandotcom-investigates/</link>
<pubDate>Mon, 31 Aug 2009 19:52:56 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/09/01/atm-credit-card-cloning-fraud-gyandotcom-investigates/</guid>
<description><![CDATA[One of the more frequent means by which customers are defrauded is by cheque interception. On averag]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:left;">One of the more frequent means by which customers are defrauded is by cheque interception. On average, a cheque is handled by up to 20 people from the time you make it out to the time your branch pays it. This means that there are numerous opportunities for the cheque to be intercepted. Most commonly this happens when cheques are posted.</p>
<p>Another common way in which customers are defrauded is in accepting a cheque or bank deposit when selling goods. Often the cheque or the deposit turns out to be fraudulent and the seller is out of pocket. Sellers are advised never to release goods until they are certain that the payment is valid.</p>
<p>Always wait for the funds to be cleared before releasing goods, even if it seems to be a bank issued cheque. While the cheque may appear to be genuine, fraudsters have even gone so far as to print their own cheques. The cheque could also be stolen. Even if the cheque is genuine, there are certain circumstances when bank issued cheques will not be honoured.</p>
<p style="text-align:left;">A fake cheques scam estimated to the tune of Rs.52 crore has been unearthed in the State Bank of India’s (SBI) main branch in kanpur. Seven bank officers have been suspended, According to the official, the fraud, which was detected Tuesday evening, was being carried on with the active connivance of the branch officials. Most of the fake cheques were credited into the account of an influential petrol pump owner and one of his associates, who have reportedly fled the country.</p>
<p style="text-align:left;">“The suspended officials include an assistant general manager, two chief managers and some senior managers, who were suspected to be directly involved in pilfering the bank by crediting fake cheques into select accounts,” he said.</p>
<p style="text-align:left;">The Kanpur branch head and deputy general manager have been divested of the charge with immediate effect.</p>
<p style="text-align:left;">The scam was detected by SBI’s audit team in Hyderabad from which a special team had been sent here to this city, 80 km from state capital Lucknow.</p>
<p style="text-align:left;">A vigilance team from the Lucknow-based state head office was also sent to Kanpur.</p>
<p style="text-align:left;">While describing the case as the “biggest fraud in the Lucknow-Kanpur region in recent decades”, the bank official did not rule out the possibility of “more heads rolling” over the next few days.</p>
<p style="text-align:left;">Significantly, barely a few months back, a fake note racket involving SBI officials was discovered in a small SBI branch in Domariyaganj town on the India-Nepal border, about 200 km from Lucknow.</p>
<p style="text-align:left;"><strong>ATM fraud</strong> issues in the most part involve credit card fraud and debit card fraud. The ATM machine may be the ‘common purchase point’ (CPP) where analysis shows that a significant number of credit cards or debit cards were used genuinely in one specific location prior to detection of subsequent fraudulent transactions. Even when not the CPP, automated teller machines may be the mechanism used to convert compromised credit cards and debit cards into hard cash, so long as the credit card fraud or debit card fraud included compromise of the personal identification number (PIN).</p>
<p>ATM skimming is now common in most parts of the world that have a mature network of ATMs, self-service terminals and point of sale (POS) terminals that accept magnetic stripe based credit cards and debit cards. Most bank ATM security issues and ATM fraud issues involving ATM skimming are the result of criminals attaching an ATM skimmer to the ATM card reader slot. Europe has historically been one of the most targeted geographies for ATM skimming attacks, although the world-wide spread of such ATM skimming fraud has been, and continues to be significant.<img class="aligncenter size-full wp-image-782" title="atm1" src="http://gyandotcom.wordpress.com/files/2009/09/atm1.jpg" alt="atm1" width="222" height="235" /></p>
<p>ATM deposit fraud which includes both cash deposit fraud and cheque fraud (check fraud) at automated teller machines is one type of ATM fraud that is particularly common in the US where many banks have a culture of crediting and allowing drawings against the deposit prior to manual reconciliation and verification.</p>
<p>ATM hacking should really only be used to describe attacks against the internals of the ATMs software or the ATMs systems security but is commonly used to describe attacks against card processors and other components of the transaction processing network. The US  have experienced a number of high profile ‘ATM hack’ attacks against well known credit card and debit card processors. Some of the systems security breaches have included compromise of the PIN in addition to the card data, with subsequent fraudulent spend using cloned credit cards and cloned debit cards at ATMs.</p>
<p>Another ATM fraud issue is ATM card theft which includes credit card trapping and debit card trapping at ATMs. Originating in South America this type of ATM fraud has spread globally. Although somewhat replaced in terms of volume by ATM skimming incidents, a re-emergence of card trapping has been noticed in regions such as Europe where EMV Chip and PIN cards have increased in circulation.</p>
<p>ATM funds transfer fraud is prevalent in Asia. This ATM scam involves criminals tricking victims into using the automated teller machine to transfer money into the criminals account.</p>
<p>ATM security attacks involving physical attacks against the ATM security enclosure are widely spread. ATM explosive attacks although originating and not uncommon in Europe are more prevalent in Australia and South Africa.</p>
<p>ATM ram raid incidents also occur globally but are most prevalent in the US, perhaps partly due to the large number of ATMs deployed in soft-target locations such as convenience stores.</p>
<p>ATM security incidents involving a high degree of precision to gain access to the ATM security enclosure occur globally. The UK and Canada have experienced many such precision ATM security attacks in recent years.Never accept a faxed bank deposit slip as proof of payment. Amounts and details can easily be changed to reflect a higher value or that it is a cash deposit. Check with your bank first that the correct amount has been deposited and whether the deposit is cash or cheque. If it is a cheque deposit, wait until the cheque has been paid (usually this will take seven days) before you release goods.</p>
<p style="text-align:left;"><strong>What is card skimming?</strong></p>
<p>‘Card skimming’ is the illegal copying of information from the magnetic strip of a credit or ATM card. It is a more direct version of a phishing scam.</p>
<p>The scammers try to steal your details so they can access your accounts. Once scammers have skimmed your card, they can create a fake or ‘cloned’ card with your details on it. The scammer is then able to run up charges on your account.</p>
<p>Card skimming is also a way for scammers to steal your identity (your personal details) and use it to commit identity fraud. By stealing your personal details and account numbers the scammer may be able to borrow money or take out loans in your name.<br />
Warning signs</p>
<p>* A shop assistant takes your card out of your sight in order to process your transaction.<br />
* You are asked to swipe your card through more than one machine.<br />
* You see a shop assistant swipe the card through a different machine to the one you used.<br />
* You notice something suspicious about the card slot on an ATM (e.g. an attached device).<br />
* You notice unusual or unauthorized transactions on your account or credit card statement.<br />
<strong>Protect yourself from card skimming</strong><br />
* Keep your credit card and ATM cards safe. Do not share your personal identity number (PIN) with anyone. Do not keep any written copy of your PIN with the card.<br />
* Check your bank account and credit card statements when you get them. If you see a transaction you cannot explain, report it to your credit union or bank.<br />
* Choose passwords that would be difficult for anyone else to guess.</p>
<p><strong>As well as following these specific tips, find out how to protect yourself from all sorts of other scams.</strong><br />
<strong>Do your homework</strong></p>
<p>If you are using an ATM, take the time to check that there is nothing suspicious about the machine.</p>
<p>Ask yourself if you trust the person or trader who you are handing your card over to. If a shop assistant looks like they are going to take your card out of your sight, ask if it is really necessary.<br />
<strong> </strong></p>
<p style="text-align:left;">If an ATM looks suspicious, do not use it and alert the ATM owner.</p>
<p>If you are in a shop and the assistant wants to swipe your card out of your sight, or in a second machine, you should ask for your card back straight away and either pay with a cheque or cash, or not make the purchase.</p>
<p style="text-align:left;"><strong>Now how to use ATM in Secure Way. Check it out</strong></p>
<p style="text-align:left;">#1</p>
<p>First of all locate an ATM which you wan to use. They can commonly be found either on the outside walls of banks (inbuilt ATMs) or in convenience and department stores (freestanding ATMs). In terms of security they are similar because of the fact that freestanding machines are more closely watched and are in more public places. Bank ATMs are more difficult to tamper with and are regularly checked by the bank, however they are more often in secluded areas where thieves can take their time to work on them.<br />
#<br />
Step 2</p>
<p>Look around the immediate area where the ATM is located for security cameras. Thieves are much less likely to try to target an ATM if it is being watched by a camera. similarly if the machine is in a place with constant attention, such as a busy shopping mall, thieves are less likely to strike.<br />
#<br />
Step 3</p>
<p>When approaching the machine, look closely at the front of the card slot. If this has been burned and melted somewhat, of if the slot protrudes more than it usually would then a cloning device may have been fitted. Many devices for cloning cards fit over the existing slot, so if the colors of these parts are slightly different in color to the rest of the machine, this is also something to look out for.<br />
#<br />
Step 4</p>
<p>If the ATM look different to the last time that you used it, then look at the new pieces, as they might contain a cameras used to recording pin numbers, These cameras are often hidden in either plastic panels which are fitted over the original or in ordinary looking pamphlet holders on the side of the ATM. Real ranks pamphlet holders are always located to the side of the machine altogether rather than in a position that could be used for recording pin numbers.<br />
#<br />
Step 5</p>
<p>Contact your card provider if you suspect any ATM which you have seen has been tampered with. As an extra precaution, using a smart card is also a good idea These cards have a chip built into them and so are much harder for thieves to read. Because of this they are often impervious to most kinds of fraudulent card reader as the technology needed to read this chip is fairly large and bulky, and cannot easily be hidden on the outside of an ATM.</p>
<p style="text-align:left;"><strong>ATM skimmers </strong>are devices that thieves install on ATM machines to steal the financial information of others. Sometimes there is also a tiny camera installed that will record the user&#8217;s pin number. The criminals that use these devices are also called skimmers. <strong>Here are some Tips you can do to protect yourself from ATM skimmers.<br />
#1</strong></p>
<p>Learn to recognize a skimmer when you see one. If you see wires poking out, a scanner that does not seem secure, multiple scanning devices, or a sticker that says scan here first, do not use the machine.<br />
#<br />
Step 2</p>
<p>Do not use a machine if someone offers to help you with it. Often the criminals who install skimmers stay nearby and “assist” users with their transaction. They may pose as another customer, or a technician working on the machine.<br />
#<br />
Step 3</p>
<p>Be secretive when entering your pin number. Cover the keys with one hand in case someone is looking over your shoulder, or there is a hidden camera nearby.<br />
#<br />
Step 4</p>
<p>Make it a habit of using the same ATM machine as often as possible. If you do this you will be familiar with the ATM machine and will be able to spot if someone has installed a device or tampered with the ATM machine.<br />
#<br />
Step 5</p>
<p>Use ATM machines where video cameras are installed so that criminals will have a harder time installing skimmers.<br />
#<br />
Step 6</p>
<p>Check the balance on your ATM card often so that if someone steals your information, you can minimize the damage. The faster you respond to ATM card theft, the better your chance is that the bank will fully reimburse you.
</p>
<p style="text-align:left;"><strong>Some sensible safety tips: </strong></p>
<p>* The person writing out a cheque should always attempt to use a ballpoint pen instead of making use of pens with more erasable inks like fountain pens or felt tip pens.<br />
* To prevent unauthorised additions and/or alterations, commence all writing as close as possible to the left-hand margin, leaving no gaps and drawing a line through unused spaces.<br />
* Any cheques that the account holder does not wish to be cashed should be crossed and, to ensure that a cheque is paid into the intended beneficiary&#8217;s account, the cheque should be marked with the words &#8220;Not Transferable&#8221; between two transverse lines.<br />
* The customer should take responsibility for keeping his/her chequebook in a safe place to prevent unauthorised use.<br />
* The customer should always keep his chequebook separate from his credit cards, ATM cards or any other document that bears his signature. If a thief gets hold of your chequebook, but does not have a sample of your signature, a forged signature will probably not resemble yours.<br />
* All paid cheques that are returned with your bank statements should be kept in a safe place because they contain your signature. Fraudsters may even try to re-use these cheques.<br />
* The customer should make a habit of doing monthly reconciliations on the cheques that were issued on his/her account.<br />
* Regular recons should be done on all unused cheques in a chequebook against counterfoil or carbon copy records.<br />
* The customer should report a stolen chequebook to his/her account holding or nearest FNB branch as soon as he/she detects that the chequebook is missing. There is also the ability to stop a cheque online via FNB Internet Banking.<br />
* The posting of cheques should be avoided and, should it be necessary, cheques should be placed in non-transparent or dark envelopes without any staples / paper clips, which can be felt through the envelope.<br />
* Never have any cheques lying around that have not been completed or fully signed.<br />
* Many alternative payment methods exist that are safe and convenient and can even save on bank charges. These alternatives include Visa Cheque Cards, Visa Electron debit cards, Internet, Telephone and Cellphone Banking, ATM payments, debit orders and future dated payments.</p>
<p style="text-align:left;">Ashish Ravindranathan the 18-year-old IIT-Bombay first-year student has allegedly duped 25 credit card-holders and made a whopping Rs 6.5 lakh in just six months. Ashish completed studies at Delhi Public School in Ahmedabad in 2008, with 90% marks and went on to IIT-Bombay.</p>
<p style="text-align:left;"><strong>Ashish Ravindranathan modus operandi</strong></p>
<p style="text-align:left;">Ashish used to pose as a bank executive, Ashish got credit card details from customers. He then used the data to book air tickets and buy laptops. He had tied up with a travel agent to cancel the tickets and share the booty, while the laptops he sold across the country at a discount. Every day, Ashish would call 50-100 credit card holders, offering to issue credit cards. He would then get details of credit cards that they already had. Some gullible customers fell for his ploy and even parted with the critical CVV number.</p>
<p style="text-align:left;">Ashish Ravindranathan was operating since October last year, said crime branch officers. It was like a movie the way he was trapped – disguised as gardeners and security guards, police trailed him to some of his favourite haunts in Ahmedabad to catch him red-handed as he made calls to credit card holders, posing as a representative of Barclays Bank.</p>
<p style="text-align:left;">A resident of Hyderabad – his father works in the US. Ashish lives with his mother and younger sister and the family is very comfortable financially. Ashish allegedly told the cops that he had got used to lavish spending and wanted to make quick money on the sly.</p>
<p style="text-align:left;"><strong>how all this Techniques used ,we start with a credit card cloning technique used by conmens.</strong></p>
<p style="text-align:left;"><strong>Credit card cloning,</strong> or &#8220;skimming&#8221; as it is sometimes called, is a new technique whereby someone obtains your credit card details, copies them onto a bogus card and begins using the credit card. While credit card theft itself is not new, the manner in which the information is stolen is.</p>
<p>The first step is to recruit an individual willing to participate in the scheme. Bartenders, wait staff or shop assistants are often prime targets because of the sheer volume of credit cards they handle.</p>
<p>Recruits are given a pocketsize device with a scanning slot, something that resembles a pager and can be worn on a belt. They are instructed to swipe customers&#8217; credit cards through the device. Because the process takes only a few seconds it can be done easily and inconspicuously without the customer or another employee noticing.</p>
<p>Swiping the credit card through the device copies the information held on the magnetic strip into memory. That information can subsequently be copied to a counterfeit card, complete with security holograms.</p>
<p>Alternatively, the information can be used to overwrite a stolen credit card which has become too hot to handle.</p>
<p>Do not underestimate the size of this problem. In the U.K. alone an astonishing $200m was spent with cloned credit cards in 2000. That&#8217;s over $500,000 every single day!</p>
<p style="text-align:left;">
<p style="text-align:left;">Finally Tips &#38; Warnings<br />
<strong>DO NOT REVEAL YOUR PERSONAL INFORMATION OR ANY RELEVANT INFORMATION TO ANY KNOWN OR UNKNOWN PERSON.</strong><br />
*<br />
If you suspect any problems with the ATM machines, do not use it and report it to the bank or establishment where it is installed.<br />
*<br />
If you see suspicious looking people around the ATM machine, do not use it.</p>
<p style="text-align:left;">GUARD YOUR PERSONAL INFORMATION.<br />
Be careful with giving out your personal information. Never give anyone your information for a reason you don’t understand or are not comfortable with. Whenever possible, request to use other types of identification.</p>
<p>**Additionally, never carry around your social security card,Passport,Voters Id card,. Always keep it in a secure, private place.<br />
#<br />
Step 2</p>
<p>PROTECT YOUR E- MAIL,Post mailers,Telephone bills,Electricity bills,credit card recipts,credit card bills.<br />
To keep a thief from stealing personal information about you by snooping through your trash or recycling bin, protect your all bills: Always tear or shred your charge receipts, credit applications, insurance forms, bank statements, expired charge cards, and preapproved credit offers. Additionally, put all outgoing mail in mailboxes or at your local post office and promptly take your mail from your mailbox after it’s delivered. If you’re going on vacation, call your post office to request a vacation hold.<br />
#<br />
Step 3</p>
<p>PROTECT YOUR CREDIT CARDS.<br />
Keep the number of cards you carry in your wallet to a minimum. If you lose a card, contact the fraud division of your credit card company. If you apply for a new card and it doesn’t come in a reasonable amount of time, contact the card issuer. Watch cashiers whenever you give them your card for a purchase. Whenever you receive a new card, sign it in permanent ink and activate it immediately.<br />
In addition, pay attention to your credit card billing cycles. Contact creditors if your bills arrive late or not at all. Missing bills could mean an identity thief has taken over your credit card account and changed the billing address.<br />
#<br />
Step 4</p>
<p>PROTECT YOUR PERSONAL INFORMATION AT HOME.<br />
Make sure you keep all personal information about you in a secure place in your home especially if you are having work done, employ outside help, or live with a roommate.<br />
#<br />
Step 5</p>
<p>PROTECT YOUR PERSONAL INFORMATION AT WORK.<br />
Verify that your personal information is kept in a secure location and is only accessible to employees with a legitimate reason to review it.<br />
#<br />
Step 6</p>
<p>BE CAREFUL WITH PASSWORDS AND PINS.<br />
In general, it’s best to memorize passwords and personal identification numbers instead of carrying them with you. Avoid using obvious or easily available information such as: your name or birth date, your mother’s maiden name, the last 4 digits of your SSN or phone number, or a series of consecutive numbers or letters.<br />
#<br />
Step 7</p>
<p>MONITOR YOUR CREDIT REPORT.<br />
To guard against identity theft, check your credit report regularly to ensure that the information it contains is true and accurate. Report any suspicious looking information to the credit agency.<br />
#<br />
Step 8</p>
<p>BE VIGILANT!<br />
But if you ever suspect that you might be the victim of possible identity theft, you can place an Initial 90 day Fraud Alert by calling any of the 3 national credit reporting agencies: Equifax, TransUnion, or Experian. The agency that accepts your request will notify the other 2 agencies, and will add the alert to your file or request additional information. You will receive a confirmation when the alert is added to your file.
</p>
<p style="text-align:left;"><strong>Protect yourself from credit card scams</strong></p>
<p>* NEVER send money, or give credit card or online account details to anyone you do not know and trust.<br />
* Check your bank account and credit card statements when you get them. If you see a transaction you cannot explain, report it to your credit union or bank.<br />
* Keep your credit card and ATM cards safe. Do not share your personal identity number (PIN) with anyone. Do not keep any written copy of your PIN with the card.<br />
* Choose passwords that would be difficult for anyone else to guess.<br />
* Try to avoid using public computers (at libraries or internet cafes) to do your internet banking.<br />
* Do not use software on your computer that auto-completes online forms. This can give internet scammers easy access to your personal and credit card details.<br />
* Do not give out your personal, credit card or online account details over the phone unless you made the call and the phone number came from a trusted source.<br />
* Never send your personal, credit card or online account details through an email.<br />
If you are buying something over the telephone or internet and want to use your credit card, make sure you know and trust the other party. If you want to provide your credit card details to a telemarketer, take their name and call them back on a phone number you find independently (i.e., not a number they give to you).</p>
<p>Check over your credit card and bank account statements as soon as you get them so that if anybody is using your account without your permission you can tell your bank.</p>
<p>Whenever you want to give out your credit card details, ask yourself if it is safe to do so. If you are very careful with your credit card and PIN, you can greatly reduce the chances of your credit card details ending up with a scammer.</p>
<p style="text-align:left;">So how do you protect yourself? You know the answer.</p>
<p style="text-align:left;">
<p style="text-align:left;">by Rohit Sharma for Gyandotcom</p>
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<title><![CDATA[Using gettext in a Cocoa application]]></title>
<link>http://b4winckler.wordpress.com/2009/08/31/using-gettext-in-a-cocoa-application/</link>
<pubDate>Mon, 31 Aug 2009 19:07:15 +0000</pubDate>
<dc:creator>b4winckler</dc:creator>
<guid>http://b4winckler.wordpress.com/2009/08/31/using-gettext-in-a-cocoa-application/</guid>
<description><![CDATA[Vim uses gettext (from libintl) to support localized messages like (I&#8217;m guessing) many *nix pr]]></description>
<content:encoded><![CDATA[Vim uses gettext (from libintl) to support localized messages like (I&#8217;m guessing) many *nix pr]]></content:encoded>
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<title><![CDATA[The original Photograph of Jhansi ki Rani 1850. Gyandotcom Exclusive]]></title>
<link>http://gyandotcom.wordpress.com/2009/08/31/the-original-photgraph-of-jhansi-ki-rani-1850-gyandotcom-exclusive/</link>
<pubDate>Sun, 30 Aug 2009 20:34:30 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/08/31/the-original-photgraph-of-jhansi-ki-rani-1850-gyandotcom-exclusive/</guid>
<description><![CDATA[अब तक आपने झांसी की रानी की तस्वीर पुस्तकों में स्केच या कैनवास पर ब्रश से उकेरे प्रयासों के सहारे ह]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>अब तक आपने झांसी की रानी की तस्वीर पुस्तकों में स्केच या कैनवास पर ब्रश से उकेरे प्रयासों के सहारे ही देखा होगा, लेकिन भारत में रानी की रानी लक्ष्मीबाई की मूल तस्वीर जिसको आप शायद ही कभी देखें हो।</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>जी हां ये है झांसी की रानी की 1850 मैं खींची गई मूल तस्वीर, जिसे सन 1850 में अंग्रेज फोटोग्राफर हॉफमैन ने लिया था। पिछले दिनों विश्व फोटोग्राफी दिवस यानि 19 अगस्त को पद्मश्री वामन ठाकरे द्वारा खींचे गए छायाचित्रों, कैनवास पे उकेरे चित्रों, लेखन कार्य और अन्य कलाकृतियों की प्रदर्शनी का आयोजन भोपाल में किया गया था। इस प्रदर्शनी में उनके विशेष आग्रह पे अहमदाबाद के एक एंटिक संग्रहकर्ता ने यह छायाचित्र भेजा था।</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>इस फोटो को श्री वामन ने प्रदर्शनी में दिखाकर लोगों को आश्चर्यचकित कर दिया। क्योंकि लक्ष्मीबाई के मूल फोटो को आज तक शायद ही किसी ने देखा होगा। अभी तक ऐसा माना जाता रहा है कि इस दुनिया में रानी लक्ष्मीबाई की तस्वीर उपलब्ध नहीं है। लेकिन इस तस्वीर के एकाएक सामने आ जाने से यह साफ हो गया कि रानी की तस्वीर अभी भी उपलब्ध है</strong></div>
<div><strong>अब तक आपने झांसी की रानी की तस्वीर पुस्तकों में स्केच या कैनवास पर ब्रश से उकेरे प्रयासों के सहारे ही देखा होगा, लेकिन भारत में रानी की रानी </strong></div>
<div><strong>लक्ष्मीबाई की मूल तस्वीर जिसको आप शायद ही कभी देखें हो।</strong></div>
<div><strong><img class="aligncenter size-full wp-image-775" title="jhansi ki rani 1850" src="http://gyandotcom.wordpress.com/files/2009/08/jhansi-ki-rani-1850.jpg" alt="jhansi ki rani 1850" width="310" height="240" />जी हां ये है झांसी की रानी की 1850 मैं खींची गई मूल तस्वीर, जिसे सन 1850 में अंग्रेज फोटोग्राफर हॉफमैन ने लिया था। पिछले दिनों विश्व फोटोग्राफी दिवस यानि 19 अगस्त को पद्मश्री वामन ठाकरे द्वारा खींचे गए छायाचित्रों, कैनवास पे उकेरे चित्रों, लेखन कार्य और अन्य कलाकृतियों की प्रदर्शनी का आयोजन भोपाल में किया गया था। इस प्रदर्शनी में उनके विशेष आग्रह पे अहमदाबाद के एक एंटिक संग्रहकर्ता ने यह छायाचित्र भेजा था।</strong></div>
<div><strong>इस फोटो को श्री वामन ने प्रदर्शनी में दिखाकर लोगों को आश्चर्यचकित कर दिया। क्योंकि लक्ष्मीबाई के मूल फोटो को आज तक शायद ही किसी ने देखा होगा। अभी तक ऐसा माना जाता रहा है कि इस दुनिया में रानी लक्ष्मीबाई की तस्वीर उपलब्ध नहीं है। लेकिन इस तस्वीर के एकाएक सामने आ जाने से यह साफ हो गया कि रानी की तस्वीर अभी भी उपलब्ध है</strong></div>
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<title><![CDATA[The Sudden Death of India Moon Mission Chandrayaan. Exclusive By Gyandotcom]]></title>
<link>http://gyandotcom.wordpress.com/2009/08/30/the-sudden-death-of-india-moon-mission-chandrayaan-exclusive-by-gyandotcom/</link>
<pubDate>Sat, 29 Aug 2009 19:06:54 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/08/30/the-sudden-death-of-india-moon-mission-chandrayaan-exclusive-by-gyandotcom/</guid>
<description><![CDATA[Communication link with Chandrayaan-1 broke on Saturday India’s moon mission, Chandrayaan-1, came to]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Communication link with Chandrayaan-1 broke on Saturday</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">India’s moon mission, Chandrayaan-1, came to an abrupt end today after communication link with the spacecraft snapped. The spacecraft, which has 11 instruments on board including six from overseas, will now continue to orbit the moon and may eventually taste the lunar dust. Launched on October 22 last year, it was expected to orbit the moon for two years.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">“We lost communication link with the spacecraft for the first time in the wee hours of Saturday. Attempts to re-establish contact have been futile. The mission is as good as lost,” Indian Space Research Organisation Director S Satish said. “We may have to abandon the spacecraft if we are not able to establish radio contact with it again,” he added. “The mission is definitely over. We have lost contact with the spacecraft,” Chandrayaan-1 Project Director M Annadurai told Press Trust of India.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The problem surfaced at 0130 hrs when ISRO suddenly lost radio contact with the spacecraft. Since then it has neither been able to receive nor send any data to the spacecraft. The Deep Space Network at Byalalu near Bangalore received data from Chandrayaan-1 up to 0025 hrs. A detailed review of the telemetry data received from the spacecraft is in progress and health of the spacecraft subsystems is being analysed, said a statement from ISRO.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The Chandrayaan-1 spacecraft was launched from the Satish Dhawan Space Centre at Sriharikota. The project cost was around Rs 390 crore. The 1,380 kg spacecraft has completed 312 days in space and has made over 3,400 orbits around the moon. It has provided large volume of data from sophisticated sensors, and has met most of the scientific objectives of the mission.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">ISRO had said last month that Chandrayaan-1 had sent more than 70,000 images of the lunar surface which provide breathtaking views of lunar mountains and craters, especially craters in the permanently shadowed areas of the moon’s polar region. It was also collecting valuable data pertaining to the chemical and mineral content of earth’s satellite. “It ( Chandrayaan-1) has done its job technically&#8230;100 per cent. Scientifically also, it has done 90-95 percent of its job,” PTI quoted Annadurai as saying.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">However, in July, Chandrayaan-1 had developed a malfunction that put some experiments in jeopardy – it had lost a vital sensor. ISRO Chairman G Madhavan Nair had said that scientists had worked around the problem and patched two other instruments to help the spacecraft to the desired locations.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">It was then that he had indicated that the life of Chandrayaan-1 may be reduced.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">Still, on August 21, ISRO and NASA performed a unique joint experiment that the Indian space agency said could yield additional information on the possible existence of ice in a permanently shadowed crater near the North pole of the moon.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The idea of undertaking an Indian scientific mission to Moon was first mooted in a meeting of the Indian Academy of Sciences in 1999 that was followed up by discussions in the Astronautical Society of India in 2000.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">But it was only in November 2003 that the government approved ISRO’s proposal for the first Indian Moon Mission called Chandrayaan-1.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The government had also announced its plans to launch Chandrayaan-2, the second unmanned lunar exploration mission proposed by ISRO, at a cost of around Rs 450 crore.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">The mission will include a lunar orbiter as well as a lander/rover.</div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;">However, the abrupt end of Chandrayyan-1 may now raise doubts about its proposed launch in 2012.</div>
<p>Communication link with Chandrayaan-1 broke on Saturday 29-8-2009</p>
<p>India’s moon mission, Chandrayaan-1, came to an abrupt end today after communication link with the spacecraft snapped. The spacecraft, which has 11 instruments on board including six from overseas, will now continue to orbit the moon and may eventually taste the lunar dust. Launched on October 22 last year, it was expected to orbit the moon for two years.</p>
<p>“We lost communication link with the spacecraft for the first time in the wee hours of Saturday. Attempts to re-establish contact have been futile. The mission is as good as lost,” Indian Space Research Organisation Director S Satish said. “We may have to abandon the spacecraft if we are not able to establish radio contact with it again,” he added. “The mission is definitely over. We have lost contact with the spacecraft,” Chandrayaan-1 Project Director M Annadurai told to gyandotcom.</p>
<p>The problem surfaced at 0130 hrs when ISRO suddenly lost radio contact with the spacecraft. Since then it has neither been able to receive nor send any data to the spacecraft. The Deep Space Network at Byalalu near Bangalore received data from Chandrayaan-1 up to 0025 hrs. A detailed review of the telemetry data received from the spacecraft is in progress and health of the spacecraft subsystems is being analysed, said a statement from ISRO.</p>
<p>The Chandrayaan-1 spacecraft was launched from the Satish Dhawan Space Centre at Sriharikota. The project cost was around Rs 390 crore. The 1,380 kg spacecraft has completed 312 days in space and has made over 3,400 orbits around the moon. It has provided large volume of data from sophisticated sensors, and has met most of the scientific objectives of the mission.</p>
<p>ISRO had said last month that Chandrayaan-1 had sent more than 70,000 images of the lunar surface which provide breathtaking views of lunar mountains and craters, especially craters in the permanently shadowed areas of the moon’s polar region. It was also collecting valuable data pertaining to the chemical and mineral content of earth’s satellite. “It ( Chandrayaan-1) has done its job technically&#8230;100 per cent. Scientifically also, it has done 90-95 percent of its job,” PTI quoted Annadurai as saying.</p>
<p>However, in July, Chandrayaan-1 had developed a malfunction that put some experiments in jeopardy – it had lost a vital sensor. ISRO Chairman G Madhavan Nair had said that scientists had worked around the problem and patched two other instruments to help the spacecraft to the desired locations.</p>
<p>It was then that he had indicated that the life of Chandrayaan-1 may be reduced.</p>
<p>Still, on August 21, ISRO and NASA performed a unique joint experiment that the Indian space agency said could yield additional information on the possible existence of ice in a permanently shadowed crater near the North pole of the moon.</p>
<p>The idea of undertaking an Indian scientific mission to Moon was first mooted in a meeting of the Indian Academy of Sciences in 1999 that was followed up by discussions in the Astronautical Society of India in 2000.</p>
<p>But it was only in November 2003 that the government approved ISRO’s proposal for the first Indian Moon Mission called Chandrayaan-1.</p>
<p>The government had also announced its plans to launch Chandrayaan-2, the second unmanned lunar exploration mission proposed by ISRO, at a cost of around Rs 450 crore.</p>
<p>The mission will include a lunar orbiter as well as a lander/rover.<img class="aligncenter size-full wp-image-767" title="chandrayaan-01" src="http://gyandotcom.wordpress.com/files/2009/08/chandrayaan-01.jpg" alt="chandrayaan-01" width="1024" height="679" /></p>
<p>However, the abrupt end of Chandrayyan-1 may now raise doubts about its proposed launch in 2012.</p>
<div>
<div>“Radio contact with Chandrayaan-I spacecraft was abruptly lost at 1.30 a.m. (IST) on August 29, 2009. The Deep Space Network at Byalalu near Bangalore received data from [it] during the previous orbit up to 12.25 a.m. (IST),” the agency said in a short statement.</div>
<div>Senior officials connected with the Rs 380-crore lunar orbiter mission were not immediately available to say what had gone wrong. The statement said telemetry data received from the spacecraft were being reviewed and the health of the spacecraft subsystems was being assessed.</div>
<div>Mr S. Satish, Director, Publicity and Public Relations, said: “We are able to neither send commands nor receive any data from the spacecraft.” He said the spacecraft did not show any recent sign of deterioration.</div>
<div>Asked if this was the end of the mission and about the fate of the spacecraft, he said: “As we have lost contact with the spacecraft, we do not know what has happened to it.”</div>
<div>The timing of the announcement of Chandrayaan-1 is ironical. ISRO, along with the Astronautical Society of India, is hosting a five-day international conference on low-cost planetary mission in Goa, where 40 overseas participants are expected. ISRO’s Chairman and Secretary of the Department of Space, Mr G. Madhavan Nair, is also the President of ASI.</div>
<div><strong>EARLY PROBLEMS</strong></div>
<div>Chandrayaan-I was launched from the Satish Dhawan Space Centre, Sriharikota, on October 22, 2008. It was built for a life of two years and was to circle Moon pole to pole from a distance of 100 km to map its surface and look for water and vital minerals. The first signs of trouble started showing within months, although ISRO acknowledged it only three months later.</div>
<div>On May 19, ISRO doubled the orbiting distance to 200 km, explaining that this was to save the instruments from the intense heat of radiation from Moon’s surface. Again, on July 17, Mr Nair told newspersons that the two onboard star-tracking sensors had failed in April and the lunar craft was facing an orientation problem.</div>
<div>It had been stabilised by an alternative mode with gyroscopes. This did not mean the craft was crippled or dying, he said.</div>
<div>Mr Nair had also said all other instruments were functioning well but there was concern about the High Energy X-ray Spectrometer or HEX, which may have been hit by radiation. HEX is meant to detect water, uranium and thorium. “A complex mission like this can encounter unexpected problems,” was the refrain of senior officials.</div>
<div>On the plus side, it had achieved most of the scientific objectives, including dropping the Tricolour on to lunar surface on November 14 last and the 3D lunar surface mapping, he had said.</div>
<div>Until Saturday, the spacecraft completed 312 days in orbit, made over 3,400 orbits around Moon and provided a large volume of data.</div>
<div>It carried 11 sophisticated sensors from ISRO and five agencies – including the Terrain Mapping Camera, Hyper-spectral Imager and the Moon Mineralogy Mapper. ISRO has at least one more lunar mission in the pipeline for 2012-13 and has teamed up with Russia for Chandrayaan-2.</div>
<div>however On Aug. 20, 2009 last week NASA and the Indian Space Research Organization (ISRO)  attempt a novel joint experiment that could yield more information on whether ice exists in a permanently shadowed crater near the north pole of the moon. Currently the ISRO’s Chandrayaan-1 and NASA’s Lunar Reconnaissance Orbiter (LRO) spacecraft are orbiting the moon.  While LRO is in its commissioning phase the two spacecraft pass close enough to each other when they are over the lunar north pole to attempt a unique experiment.  Both spacecraft are equipped with a NASA Miniature Radio Frequency (RF) instrument that functions as a Synthetic Aperture Radar (SAR), known as Mini-SAR on Chandrayaan-1 and Mini-RF on LRO.  The experiment uses both radars to point at Erlanger Crater at the same time.</div>
<div>Normally the Mini-RF Instrument sends radio pulses to the moon and precisely records the radio echoes that bounce straight back from the surface, along with their timing and frequency.  From these data scientists can build images of the moon that not only show areas they otherwise couldn’t see, such as the permanently-shadowed areas near the lunar poles, but also contain information on the physical nature of the surface.</div>
<div>For the Bi-Static experiment the Mini-SAR on Chandrayaan-1 performs its normal SAR imaging (transmitting and receiving) while the Mini-RF is set to receive only.  The two instruments look at the same location from different angles.  Comparing the signal that bounces straight back to Chandrayaan with the signal that bounces at a slight angle to LRO provides unique information about the surface.</div>
<div>Arecibo Radiotelescope Puerto Rico &#8211; Low resolution Earth-based radar image of the North Pole of the Moon, showing the position of the crater Erlanger (arrow). Radar image (70 cm wavelength).</div>
<div>Stewart Nozette, Mini-RF principal investigator from the Universities Space Research Association’s Lunar and Planetary Institute, said, “An extraordinary effort was made by the whole NASA team working with ISRO to make this happen”</div>
<div>While this coordination sounds easy, this experiment is extremely challenging because both spacecraft are traveling at about 1.6 km per second and will be looking at an area on the ground about 18 km across.  Due to the extreme speeds and the small point of interest, NASA and ISRO need to obtain and share information about the location and pointing of both spacecraft.  The Bi-Static experiment requires extensive tracking by ground stations of NASA’s Deep Space Network, the Applied Physics Laboratory, and ISRO. <img class="aligncenter size-full wp-image-761" title="380722main_erlanger_crater_226x170" src="http://gyandotcom.wordpress.com/files/2009/08/380722main_erlanger_crater_226x170.jpg" alt="380722main_erlanger_crater_226x170" width="226" height="170" /></div>
<div>Even with the considerable planning and coordination between the U.S. and India the two instrument beams may not overlap, or may miss the desired location.  Even without hitting the exact location Scientists may still be able to use the Bi-Static information to further knowledge already received from both instruments.</div>
<div>“The international coordination and cooperation between the two agencies for this experiment is an excellent opportunity to demonstrate future cooperation between NASA and ISRO, “says Jason Crusan, program executive for the Mini-RF program, from NASA’s Space Operations Mission Directorate, Washington, D.C.</div>
<div>ISRO/NASA/JHUAPL/LPI &#8211; Mosaic of Mini-SAR image strips of the north polar area, showing the crater Erlanger, just south of the crater Peary. North Pole is in the direction of left top, out of frame. Mini-SAR radar image, Chandrayaan-1 mission.</div>
<div>“In the last few years we have seen a renaissance in international interest and cooperation in the study of the moon” says Gordon Johnson, program executive for the LRO, from NASA’s Exploration Systems Mission Directorate, Washington, D.C.  “As LRO completes its commissioning phase, we look forward to LRO’s contribution to this international effort.”</div>
<div>LRO was launched June 18, 2009. Its objectives are to scout for safe landing sites, locate potential resources, characterize the radiation environment, and demonstrate new technology. NASA’s Goddard Space Flight Center in Greenbelt, Md. built and manages the mission for NASA’S Exploration Systems Mission Directorate in Washington. LRO is a NASA mission with international participation from the Institute for Space Research in Moscow. Russia provides the neutron detector aboard the spacecraft.</div>
<div>Instrument principal investigators Stewart Nozette (LRO) and Paul Spudis (Chandrayaan-1) are from the Universities Space Research Association’s Lunar and Planetary Institute. NASA’s Space Operations Mission Directorate, NASA Headquarters, manages the Mini-RF program.  NASA’s Exploration Systems Mission Directorate, NASA Headquarters, manages the LRO.</div>
<div>In addition to Mini-SAR the Chandryaan-1 spacecraft, which was launched in October 2008 from India’s Satish Dhawan Space Centre, also carries NASA’s Moon Mineralogy Mapper for assessing the moon’s mineral resources.</div>
</div>
<div><strong>Gyandotcom</strong></div>
<div>On  the Launch day of Chandryaan-1</div>
<div>
<p>In the next six months the team will wrestle with the details of launching such a mission, including its cost-effectiveness and the areas in which Indian scientists can significantly add to the mountain of knowledge that has already been collected about the moon. It will form the basis of a project report that ISRO will submit to the Central Government for approval. The objective: to have an Indian lunar mission sent up by  October 2008. “As a motivator, it will electrify the nation,” Kasturirangan explained  last week. “If we go ahead, it will demonstrate to the world that India is capable of taking up a complex mission that is at the cutting edge of space. The spins-offs for us are going to be many.”first planetary mission, Chandrayaan-1, has now been rescheduled to take place in the first week of July as the mission personnel work overtime to sort out payload integration and launch-related issues. “We are targeting the end of June. We will try to make it in the first week of July,” a senior scientist associated with the Rs 386 crore moon mission told here on Monday on condition of anonymity.<br />
The lunar mission was originally scheduled for April this year, a time-frame targeted four years ago to get all the payloads well ahead of time and to galvanise the scientists into mission mode with a target to work on.</p>
<p>Indian Space Research Organisation officials insisted that there are no hardware problems and that the space agency is moving more cautiously to ensure that all systems are well tested before and after integration at each stage.</p>
<p>The 525-kg lunar orbiter will carry as many as 11 instruments (payloads), including six from overseas — two from the US and one each from Britain, Sweden, Germany and Bulgaria.</p>
<p>“Normally we have 2-3 instruments (on board satellite). For the first time, we have 11 instruments from different institutions. We have to ensure that the integration work takes place to our satisfaction<br />
Project Director of Chandrayaan-1.</p>
<p>Stressing on inter-compatibility of various instruments on board, Annadurai said ISRO is working on ensuring that “all the systems (one system) does not disturb other systems’ performance”. “Any system of this volume will have its own issues that need to be solved before proceeding to the next step,” he said.</p>
<p>“The issue gets compounded as the organisations are many. When we do this, it will add to taking away schedule cushions. Just to keep the launch target, we don’t want to overlook any issue that will compromise the unqualified success of the mission”.</p>
<p>ISRO had earlier proposed to launch the lunar probe on April 9 and if not on that day, then on April 23.</p>
<p>“If systems (once integrated and with propellants loaded) are kept for 14 days, then there could be some deterioration”, he said, adding, ISRO is now working on a strategy that would allow it to have more number of launch opportunities. “We have almost arrived at a strategy”.</p>
<p>ISRO would keep a half-an-hour launch window on a given day, and if it is not in a position for the mission during that period, it could be done in the subsequent two days as well, Annadurai explained.While the spacecraft itself will not land on the Moon, it will act as an orbiter and land a rover on the surface. The spacecraft is being launched next month sometime between October 22 and October 26 2008. The spacecraft payload includes 11 payloads (including one from NASA) and will perform remote sensing and studies of the lunar surface. The mission is estimated to cost Rs 386 crore (~ 84.3 million USD).”<a href="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1__1.jpg"><img class="alignnone size-full wp-image-359" title="chandrayaan-1__1" src="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1__1.jpg?w=344&#038;h=300#38;h=300" alt="" width="344" height="300" /></a><a href="http://gyandotcom.files.wordpress.com/2008/09/ss1.jpg"><img class="alignnone size-full wp-image-362" title="ss1" src="http://gyandotcom.files.wordpress.com/2008/09/ss1.jpg?w=300&#038;h=357#38;h=357" alt="" width="300" height="357" /></a></p>
<p>The Working Model of Chandrayaan-1</p>
<p><a href="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1_spacecraft.jpg"><img class="alignnone size-medium wp-image-360" title="chandrayaan-1_spacecraft" src="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1_spacecraft.jpg?w=300&#038;h=224#38;h=224" alt="" width="300" height="224" /></a></p>
<p><a href="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1.jpg"><img class="alignnone size-medium wp-image-361" title="chandrayaan-1" src="http://gyandotcom.files.wordpress.com/2008/09/chandrayaan-1.jpg?w=300&#038;h=193#38;h=193" alt="" width="300" height="193" /></a></p>
<p><a href="http://gyandotcom.files.wordpress.com/2008/09/images5cproto_chandrayaan1.jpg"><img class="alignnone size-full wp-image-363" title="images5cproto_chandrayaan1" src="http://gyandotcom.files.wordpress.com/2008/09/images5cproto_chandrayaan1.jpg?w=188&#038;h=250#38;h=250" alt="" width="188" height="250" /></a><strong>Chandrayaan-1</strong></p>
<p><span class="subheadtext"><strong>How it Works?</strong></span></p>
<p><span class="subheadtext">The primary objectives of the Chandrayaan-1 mission are simultaneous chemical, mineralogicaland topographic mapping of the lunar surface at high spatial resolution. These data should enableus to understand compositional variation of major elements, which in turn, should lead to a betterunderstanding of the stratigraphic relationships between various litho units occurring on the lunarsurface. The major element distribution will be determined using an X-ray fluorescence spectro-meter (LEX), sensitive in the energy range of 1–10 keV where Mg, Al, Si, Ca and Fe give their Kαlines. A solar X-ray monitor (SXM) to measure the energy spectrum of solar X-rays, which areresponsible for the fluorescent X-rays, is included. Radioactive elements like Th will be measured byits 238.6 keV line using a low energy gamma-ray spectrometer (HEX) operating in the 20–250 keVregion. The mineral composition will be determined by a hyper-spectral imaging spectrometer(HySI) sensitive in the 400–920 nm range. The wavelength range is further extended to 2600 nmwhere some spectral features of the abundant lunar minerals and water occur, by using a near-infrared spectrometer (SIR-2), similar to that used on the Smart-1 mission, in collaboration withESA. A terrain mapping camera (TMC) in the panchromatic band will provide a three-dimensionalmap of the lunar surface with a spatial resolution of about 5m. Aided by a laser altimeter (LLRI)to determine the altitude of the lunar craft, to correct for spatial coverage by various instruments,TMC should enable us to prepare an elevation map with an accuracy of about 10m.Four additional instruments under international collaboration are being considered. These are:a Miniature Imaging Radar Instrument (mini-SAR), Sub Atomic Reflecting Analyser (SARA),the Moon Mineral Mapper (M3) and a Radiation Monitor (RADOM). Apart from these scientificpayloads, certain technology experiments have been proposed, which may include an impactorwhich will be released to land on the Moon during the mission.Salient features of the mission are described here. The ensemble of instruments onboardChandrayaan-1 should enable us to accomplish the science goals defined for this mission.Chandrayaan-1 is a remote sensing mission pro-posed to be launched from the Satish DhawanLaunch Station at Sriharikota in 2007 by theIndian Space Research Organization using thePolar Satellite Launch Vehicle. It will be injectedinto 240×36,000 km Elliptic Transfer Orbit (ETO)around the Earth and will be inserted in a circum-lunar orbit (LOI) via Lunar Transfer Trajectory(LTT). The launch profile is discussed in detail inan accompanying paper (Adimurthy et al 2005). Itwill enter the lunar orbit at about 1000 km altitudeand brought down to 100 km polar circular orbitin one or two stages. The lunar craft is designedto orbit the moon for a period of two years duringwhich it will carry out chemical, mineralogical andtopographic study of the lunar surface.There are several questions which are critical forunderstanding the formation and early evolution-ary history of the Moon, and the Chandrayaan-1mission objectives have been formulated keepingthis in mind.The main objective of the mission is simultane-ous chemical, mineral and topographic mappingwith the specific goal of understanding the earlyevolution of the Moon. Chemical stratigraphy canprovide better estimation of the average lunar com-position and processes responsible for chemical dif-ferentiation of the Moon. Transport of volatiles,specifically water, and their deposition in thecolder regions of the Moon and degassing of theMoon can be understood by using radon and itsdaughter nuclide210Pb as tracers.</span></p>
<p><span class="subheadtext"><strong>When</strong></span><br />
<span class="normaltext">Chandrayaan-1 planned to be launched in 2008 using spacecraft and launch vehicle of ISRO. The mission is expected to have an operational life of about 2 years. </span></p>
<p>The idea of undertaking an Indian scientific mission to Moon was initially mooted in a meeting of the Indian Academy of Sciences in 1999 that was followed up by discussions in the Astronautical Society of India in 2000. Based on the recommendations made by the learned members of these forums, a National Lunar Mission Task Force was constituted by the Indian Space Research Organisation (ISRO). Leading Indian scientists and technologists participated in the deliberations of the Task Force that provided an assessment on the feasibility of an Indian Mission to the Moon as well as dwelt on the focus of such a mission and its possible configuration.</p>
<p>Government of India approved ISRO’s proposal for Chandrayaan-1 in November 2003.</p>
<p>Chandrayaan will be ready to launch in between October 19 and October 28.</p>
<p><strong>chandrayaan 1 is now in lunar orbit. the scientific objective of the mission is</strong></p>
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<td>The Chandrayaan-1 mission is aimed at high-resolution remote sensing of the moon in visible, near infrared (NIR), low energy X-rays and high-energy X-ray regions. Specifically the objectives are</td>
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<td>To prepare a three-dimensional atlas (with high spatial and altitude resolution of 5-10 m) of both near and far side of the moon.</td>
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<td>To conduct chemical and mineralogical mapping of the entire lunar surface for distribution of mineral and chemical elements such as Magnesium, Aluminum, Silicon, Calcium, Iron and Titanium as well as high atomic number elements such as Radon, Uranium &#38; Thorium with high spatial resolution.</td>
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<td>The Simultaneous photo geological, mineralogical and chemical mapping through Chandrayaan-1 mission will enable identification of different geological units to infer the early evolutionary history of the Moon. The chemical mapping will enable to determine the stratigraphy and nature of the Moon’s crust and thereby test certain aspects of magma ocean hypothesis. This may allow to determine the compositions of impactors that bombarded the Moon during its early evolution which is also relevant to the formation of the Earth.</p>
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<td class="orgtext" height="18">Scientific Objectives</td>
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<td>The Chandrayaan-1 mission is aimed at high-resolution remote sensing of the moon in visible, near infrared (NIR), low energy X-rays and high-energy X-ray regions. Specifically the objectives are</td>
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<td>To prepare a three-dimensional atlas (with high spatial and altitude resolution of 5-10 m) of both near and far side of the moon.</td>
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<td>To conduct chemical and mineralogical mapping of the entire lunar surface for distribution of mineral and chemical elements such as Magnesium, Aluminum, Silicon, Calcium, Iron and Titanium as well as high atomic number elements such as Radon, Uranium &#38; Thorium with high spatial resolution.</td>
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<td>The Simultaneous photo geological, mineralogical and chemical mapping through Chandrayaan-1 mission will enable identification of different geological units to infer the early evolutionary history of the Moon. The chemical mapping will enable to determine the stratigraphy and nature of the Moon’s crust and thereby test certain aspects of magma ocean hypothesis. This may allow to determine the compositions of impactors that bombarded the Moon during its early evolution which is also relevant to the formation of the Earth.</td>
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<td class="center"><img class="cursor" src="http://gyandotcom.wordpress.com/images/radiation.jpg" border="0" alt="Radiation Environment" /></td>
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<td class="bold right" height="18"><a class="darkredtext" href="http://gyandotcom.wordpress.com/2008/09/22/india-ready-for-a-moon-walk-this-october-special-feature-by-gyandotcom/show_Imagesa%28%27../images/radiation_big.jpg%27%29">Click here to enlarge</a></td>
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<td class="italic" height="18">Radiation environment of the Moon produced by solar radiation and solar and galactic cosmic rays: The reflectance spectrum is useful for mineral identification, the fluorescent X-ray spectrum and solar and galactic cosmic-ray produced gamma radiation for chemical mapping, and radiogenic gamma and alpha particle spectrum for mapping of radioactive nuclides (U, Th, K, etc.) and in understanding the leakage of radon from the lunar interior and its transport on the lunar surface. The uranium decay chain, which produces <sup>222</sup>Rn and its daughters, forming a thin ‘paint’ on the lunar surface, are shown on the right. The temperature regimes on the sunlit and night side of the Moon and the permanently shadowed cold Polar Regions are shown schematically</td>
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<td>To realise the mission goal of harnessing the science payloads, lunar craft and the launch vehicle with suitable ground support systems including Deep Space Network (DSN) station.</td>
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<td>To realise the integration and testing, launching and achieving lunar polar orbit of about 100 km, in-orbit operation of experiments, communication/ telecommand, telemetry data reception, quick look data and archival for scientific utilisation by scientists.</td>
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<p><strong> </strong></p>
<p>by Gyandotcom</p></div>
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<title><![CDATA[Fixes for Gallery 2 French translation in module 'core']]></title>
<link>http://beeznest.wordpress.com/2009/08/29/fixes-for-gallery-2-french-translation-for-module-core/</link>
<pubDate>Sat, 29 Aug 2009 11:27:40 +0000</pubDate>
<dc:creator>jwarnier</dc:creator>
<guid>http://beeznest.wordpress.com/2009/08/29/fixes-for-gallery-2-french-translation-for-module-core/</guid>
<description><![CDATA[After years using G2, I finally fixed the fr.po for core module and submitted it to latest registere]]></description>
<content:encoded><![CDATA[After years using G2, I finally fixed the fr.po for core module and submitted it to latest registere]]></content:encoded>
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<title><![CDATA[KINDLY SWITCH OFF YOUR LIGHTS FOR 1 HOUR ON 27TH MARCH 2010.]]></title>
<link>http://gyandotcom.wordpress.com/2009/08/28/kindly-switch-off-your-lights-for-1-hour-on-27th-march-2010/</link>
<pubDate>Fri, 28 Aug 2009 05:28:25 +0000</pubDate>
<dc:creator>gyandotcom by Rohit Sharma</dc:creator>
<guid>http://gyandotcom.wordpress.com/2009/08/28/kindly-switch-off-your-lights-for-1-hour-on-27th-march-2010/</guid>
<description><![CDATA[Earth Hour 2010 &#8211; 8:00 pm to 9:00 pm March 27th 2010 (Worldwide) VOTE EARTH This year, Earth H]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>Earth Hour 2010 &#8211; 8:00 pm to 9:00 pm March 27th 2010 (Worldwide)</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>VOTE EARTH</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>This year, Earth Hour was transformed into the world’s first global election, between Earth and global warming.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>For the first time in history, people of all ages, nationalities, race and background have an opportunity to cast their vote for Earth. WWF are urging the world to VOTE EARTH and reach the target of 1 billion votes by the time world leaders meet in Copenhagen for the Global Climate Change Conference in December 2009.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>This meeting will determine official government policies to take action against global warming, which will replace the Kyoto Protocol. It is the chance for the people of the world to make their voice heard.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>Earth Hour began in Sydney in 2007, when 2.2 million homes and businesses switched off their lights for one hour. In 2008 the message had grown into a global sustainability movement, with 50 million people switching off their lights. Global landmarks such as the Golden Gate Bridge in San Francisco, Rome’s Colosseum, the Sydney Opera House and the Coca Cola billboard in Times Square all stood in darkness.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>In 2009, Earth Hour was taken to the next level, with the goal of 1 billion people casting their vote for Earth. Unlike any election in history, it is not about what country you’re from, but instead, what planet you’re from.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>VOTE EARTH is a global call to action for every individual, every business, and every community – a call to stand up and take control of the future of our planet.</strong></div>
<div id="_mcePaste" style="position:absolute;left:-10000px;top:0;width:1px;height:1px;"><strong>We all have a vote, and every single vote counts. Together we can take control of the future of our planet, for future generations.</strong></div>
<div><img class="aligncenter size-full wp-image-752" title="468x60" src="http://gyandotcom.wordpress.com/files/2009/08/468x60.gif" alt="468x60" width="468" height="60" /></div>
<div><strong>Earth Hour 2010 &#8211; 8:00 pm to 9:00 pm March 27th 2010 (Worldwide)</strong></div>
<div><strong>VOTE EARTH 2010</strong></div>
<div><strong>This year, Earth Hour was transformed into the world’s first global election, between Earth and global warming.</strong></div>
<div><strong>For the first time in history, people of all ages, nationalities, race and background have an opportunity to cast their vote for Earth. WWF are urging the world to VOTE EARTH and reach the target of 1 billion votes by the time world leaders meet in Copenhagen for the Global Climate Change Conference in December 2009.</strong></div>
<div><strong>This meeting will determine official government policies to take action against global warming, which will replace the Kyoto Protocol. It is the chance for the people of the world to make their voice heard.</strong></div>
<div><strong>Earth Hour began in Sydney in 2007, when 2.2 million homes and businesses switched off their lights for one hour. In 2008 the message had grown into a global sustainability movement, with 50 million people switching off their lights. Global landmarks such as the Golden Gate Bridge in San Francisco, Rome’s Colosseum, the Sydney Opera House and the Coca Cola billboard in Times Square all stood in darkness.</strong></div>
<div><strong>In 2009, Earth Hour was taken to the next level, with the goal of 1 billion people casting their vote for Earth. Unlike any election in history, it is not about what country you’re from, but instead, what planet you’re from.</strong></div>
<div><strong>VOTE EARTH is a global call to action for every individual, every business, and every community – a call to stand up and take control of the future of our planet.</strong></div>
<div><strong><br />
</strong></div>
<div><strong><br />
</strong></div>
<div><strong>We all have a vote, and every single vote counts. Together we can take control of the future of our planet, for future generations.</strong></div>
<div><strong><br />
</strong></div>
<div><strong>GYANDOTCOM</strong></div>
</div>]]></content:encoded>
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<item>
<title><![CDATA[Compiling Localizable Objects into Native JavaScript]]></title>
<link>http://jeremyhiatt.wordpress.com/2009/08/22/compiling-localizable-objects-into-native-javascript/</link>
<pubDate>Sat, 22 Aug 2009 00:10:41 +0000</pubDate>
<dc:creator>jeremyhiatt</dc:creator>
<guid>http://jeremyhiatt.wordpress.com/2009/08/22/compiling-localizable-objects-into-native-javascript/</guid>
<description><![CDATA[One of the goals for my summer internship is to improve performance of l20n. The initial implementat]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>One of the goals for my summer internship is to improve performance of <a href="https://wiki.mozilla.org/L20n">l20n</a>. The initial implementation was a parser written entirely in JavaScript that operated on .lol files. For more details about our choices for file formats, see my previous post. After some failed attempts to rework the parser&#8217;s use of regular expressions that regressed performance, I experimented with JSON as an alternative file format. The hope was that we could leverage the performance of Gecko&#8217;s built-in JSON parser to speed up l20n. We did see some tremendous improvements: on a large testcase constructed from browser.dtd, JSON cut our parsing time from ~140 milliseconds down to just a few ms. Unfortunately, we were still slow when it came to evaluating and displaying all those entities. We still had a big chunk of parsing left that we couldn&#8217;t outsource to JSON. Each string value in l20n may contain variable placeholders. Here&#8217;s an example (in JSON):</p>
<pre style="border:1px solid #DFECF1;color:#25221D;display:block;font-family:'Courier New',monospace;overflow:auto;padding:10px;">
"droponbookmarksbutton" : {
    "value" : "Drop a link to bookmark it"},

"popupWarning" : {
    "value" : "${brandShortName}s prevented this site
              from opening a pop-up window."}
</pre>
<p>(Line breaks inserted for clarity.) The first string doesn&#8217;t use any variables, but the second does. In order to catch all these placeholders, we scanned each string with a regular expression to match the ${&#8230;}s syntax, even though many strings don&#8217;t use any variables. That translated to a linear traversal of every single string before it could be returned, costing us a lot of time. In tests conducted in the xpcshell, rendering all the elements from browser.properties took roughly 40ms. In comparison, the current framework for properties files can parse and display all the elements in under 20ms. Since we can&#8217;t afford to regress overall performance, that meant we still had work to do to get faster.</p>
<p>One way to eliminate checking every single string is to add extra information to the encoding for strings. Many languages define different behavior for single- vs. double-quoted strings, performing replacements in one but not the other. We could also have added a special flag to indicate simple (no replacements) vs. complex strings. Either of these approaches would have added further complexity to the localization process, so we did not seriously consider this approach.</p>
<p>Instead, on the advice of the brilliant Staś Małolepszy, we embarked on an experiment to compile our l20n objects into native JavaScript. As a result, we saw another impressive performance jump. In an xpcshell test, we can load and display all of browser.properties in roughly 4ms (an order of magnitude improvement!). Here&#8217;s what our previous example looks like as compiled JavaScript:</p>
<pre style="border:1px solid #DFECF1;color:#25221D;display:block;font-family:'Courier New',monospace;overflow:auto;padding:10px;">
this.droponbookmarksbutton="Drop a link to bookmark it";
this.__defineGetter__("popupWarning",
  function() { return "" + (brandShortName) +
    " prevented this site from opening a pop-up window.";});
</pre>
<p>Another great thing about compilation is that our runtime performance doesn&#8217;t depend on our choice of source file format. Here&#8217;s a diagram showing the different ways an l20n file can get inflated into a localization context:<br />
<div id="attachment_30" class="wp-caption aligncenter" style="width: 310px"><a href="http://jeremyhiatt.wordpress.com/files/2009/08/l20n-diagram.png"><img src="http://jeremyhiatt.wordpress.com/files/2009/08/l20n-diagram.png?w=300" alt="l20n compilation scheme" title="l20n-diagram" width="300" height="217" class="size-medium wp-image-30" /></a><p class="wp-caption-text">Inflating l20n source into a context</p></div><br />
The performance numbers were collected using nsITimelineService in the xpcshell. The l20n runtime infrastructure can inflate a source file directly into a context, or it can load compiled JavaScript definitions for a significant performance boost. For comparison, here&#8217;s a diagram of Mozilla&#8217;s current l10n scheme:<br />
<div id="attachment_35" class="wp-caption aligncenter" style="width: 288px"><a href="http://jeremyhiatt.wordpress.com/files/2009/08/dtd-props-diagram.png"><img src="http://jeremyhiatt.wordpress.com/files/2009/08/dtd-props-diagram.png?w=278" alt="Current l10n scheme" title="dtd-props-diagram" width="278" height="300" class="size-medium wp-image-35" /></a><p class="wp-caption-text">Current l10n scheme</p></div><br />
Again, this time was measured in the xpcshell when loading the browser.properties string bundle. It&#8217;s not necessarily representative of performance for DTD files as well. As we can see, compilation now guarantees at least comparable performance to the current approach, no matter what file format we end up using. If you&#8217;d like to weigh in on that debate, please leave a comment on my previous post! And finally, we are also working on l20n support in <a href="http://wiki.braniecki.net/Silme">Silme</a> so that it will be easy to migrate existing DTD/.properties files to our new l20n format.<br />
<div id="attachment_36" class="wp-caption aligncenter" style="width: 310px"><a href="http://jeremyhiatt.wordpress.com/files/2009/08/silme-conversion.png"><img src="http://jeremyhiatt.wordpress.com/files/2009/08/silme-conversion.png?w=300" alt="Intercompatibility with Silme" title="silme-conversion" width="300" height="224" class="size-medium wp-image-36" /></a><p class="wp-caption-text">Intercompatibility with Silme</p></div><br />
Silme will serve as a critical compatibility layer to ensure a smooth transition to our new l10n framework. Please let me know if you have any questions or comments!</p>
</div>]]></content:encoded>
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