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	<title>lhc &amp;laquo; WordPress.com Tag Feed</title>
	<link>http://en.wordpress.com/tag/lhc/</link>
	<description>Feed of posts on WordPress.com tagged "lhc"</description>
	<pubDate>Fri, 27 Nov 2009 08:16:39 +0000</pubDate>

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	<language>en</language>

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<title><![CDATA[Myth of Strange Matter And Black Hole at LHC]]></title>
<link>http://bruceleeeowe.wordpress.com/2009/11/27/myth-of-strange-matter-and-black-hole-at-lhc/</link>
<pubDate>Thu, 26 Nov 2009 19:08:13 +0000</pubDate>
<dc:creator>bruceleeeowe</dc:creator>
<guid>http://bruceleeeowe.wordpress.com/2009/11/27/myth-of-strange-matter-and-black-hole-at-lhc/</guid>
<description><![CDATA[The LHC, like other particle accelerators, recreates the natural phenomena of cosmic rays under cont]]></description>
<content:encoded><![CDATA[The LHC, like other particle accelerators, recreates the natural phenomena of cosmic rays under cont]]></content:encoded>
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<title><![CDATA[CERN kämpar mot tidsresenärer?]]></title>
<link>http://massasaker.wordpress.com/2009/11/26/cern-kampar-mot-tidsresenarer/</link>
<pubDate>Thu, 26 Nov 2009 18:46:42 +0000</pubDate>
<dc:creator>afbeaver</dc:creator>
<guid>http://massasaker.wordpress.com/2009/11/26/cern-kampar-mot-tidsresenarer/</guid>
<description><![CDATA[Värdens största och bästa partikelaccelerator hos CERN är ju igång igen. Som jag nämnt tidigare är j]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><strong>Värdens största och bästa partikelaccelerator hos CERN är ju igång igen. <a href="http://massasaker.wordpress.com/2008/10/27/cern-varldens-coolaste-plats/">Som jag nämnt tidigare</a> är jag ett stort fan av forskningen på CERN.</p>
<p>Den här månaden startade acceleratorn upp igen och världen väntar ivrigt på att få veta hur jakten på den &#8220;higgsbosonen&#8221;, hypotes-partikeln som är orsaken till massa, ska gå. </strong></p>
<p><a href="http://www.dn.se/nyheter/vetenskap/partikelaccelerator-lhc-big-bang-cern-har-oppnat-igen-1.998910">Här kan du se uppstarten av LHC igen!</a></p>
<p>Egentligen skulle detta hänt förra hösten, men då drabbades partikelacceleratorn av en läcka. Vad de flesta inte insett är dock att läckan orsakades av en tidsresenär från framtiden.</p>
<p><img src="http://massasaker.files.wordpress.com/2009/11/180px-holger_b.jpg?w=80" alt="180px-Holger_b.jpg" border="0" width="80" align="right" />Japp! Den här idén läggs fram av <a href="http://en.wikipedia.org/wiki/Holger_Bech_Nielsen">dr Holger Bech Nielsen</a>, professor i teoretisk fysik vid Niels Bohr Institutet i Köpenhamn.Tydligen kommer något förfärligt att hända om vi lyckas hitta higgsbosonen. Därför är det något i framtiden som influerar vår tid för att stoppa CERNs partikelaccelerator, enligt dr Nielsen. </p>
<p>Och visst har LHC haft sina problem, både att få pengar och få den att fungera. Men är det verkligen så märkligt när det är en 27 km lång bana för €3 miljarder under Schweiz? Har vi verkligen någon  anledning att börja spekulera om tidsresenärer som sabbar? Räcker det inte med att säga att det är ett krångligt projekt och saker går snett?</p>
<p>Dr Nielsen föreslår en metod att testa deras idé. Vi har en kortlek med många, många hjärter, och bara ett spader. Sen bestämmer vi oss för att om vi vi råkar dra ett spader ska vi avbryta LHC-projektet. Sen drar vi ett slumpvalt kort. Om vi får spader tyder det sannolikt på&#8230;  influenser från framtiden&#8230;  hmmm&#8230;.</p>
<p>Shit jag orkar inte lusläsa hans papers ordentligt. Gör det själv:<br />
<a href="http://arxiv.org/PS_cache/arxiv/pdf/0910/0910.0359v3.pdf">http://arxiv.org/PS_cache/arxiv/pdf/0910/0910.0359v3.pdf</a><br />
<a href="http://arxiv.org/PS_cache/arxiv/pdf/0707/0707.1919v4.pdf">http://arxiv.org/PS_cache/arxiv/pdf/0707/0707.1919v4.pdf</a><br />
Men jag tyckte det vore kul att nämna. </p>
<p><img src="http://massasaker.files.wordpress.com/2008/11/linje-b-s.jpg?w=400&#038;h=5" alt="linje b-s.jpg" border="0" width="400" height="5" /></p>
<p><strong>Är det dock inte en paradox att ändra historien? <a href="http://www.nytimes.com/2009/10/13/science/space/13lhc.html?_r=2">Artikeln i NY-times</a> beskriver:</strong><br />
<img src="http://massasaker.files.wordpress.com/2009/11/skacc88rmavbild-2009-11-26-kl-19-24-37.png?w=256&#038;h=115" alt="Skärmavbild 2009-11-26 kl. 19.24.37.png" border="0" width="256" height="115" /><br />
Okej, men jag ser fortfarande en paradox! <strong>Om du reser tillbaka i tiden och räddar din morfar från att köras över av en buss har han inte längre blivit överkörd. Du har kvar din morfar och har därför ingen anledning att resa tillbaka i tiden och rädda honom! Du reser därför inte tillbaka i tiden och morfar blir överkörd. Paradox!</strong> Såvida det inte tidslinjen delas och skapar en alternativ verklighet där du räddat morfar. Det vet ingen, antalet experiment på tidsresor är för få för att dra några definitiva slutsatser. Men paradoxen är kvar lika mycket som om du skulle döda din morfar. Eller på samma sätt om någon reser tillbaka i tiden och stoppar den stora olyckan som påstås följa av att vi upptäcker higgsbosonen.</p>
<p>Jag har svårt att ta Dr. Nielsen seriöst. Men jag tyckte hans spekulationer vore kul att nämna.</p>
<p>Mer info:<br /><a href="http://www.nytimes.com/2009/10/13/science/space/13lhc.html?_r=2">http://www.nytimes.com/2009/10/13/science/space/13lhc.html?_r=2</a></p>
<p><img src="http://massasaker.files.wordpress.com/2008/11/linje-b-s.jpg?w=400&#038;h=5" alt="linje b-s.jpg" border="0" width="400" height="5" /></p>
<p><img src="http://massasaker.files.wordpress.com/2009/11/45483688_cern_cern_466.jpg?w=400" alt="_45483688_cern_cern_466.jpg" border="0" width="400" /><br />
<em>Ligger något från framtiden bakom detta sabotage?</em></p>
<p><img src="http://massasaker.files.wordpress.com/2009/11/skacc88rmavbild-2009-11-26-kl-19-35-23.png?w=198&#038;h=263" alt="Skärmavbild 2009-11-26 kl. 19.35.23.png" border="0" width="198" height="263" /><br />
<em>När skolan i Skillingaryd byggdes om krånglade det rejält och det blev försenat över ett halvår. Är det verkligen konstigt att en gigantisk partikelaccelerator inte går felfritt?</em></p>
<p><img src="http://massasaker.files.wordpress.com/2008/12/linje-r-s.jpg?w=400&#038;h=5" alt="linje-r-s.jpg" border="0" width="400" height="5" /></p>
<p><img src="http://massasaker.files.wordpress.com/2009/11/images-1.jpeg?w=100&#038;h=75" alt="images-1.jpeg" border="0" width="100" height="75" align="right" />ps. Det är snart jul! Favorithögtiden här. Och en ny stor jul-specieal på massasaker! Börjar första advent!</p>
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<title><![CDATA[LHC-FHC - vilket är segerreceptet?]]></title>
<link>http://fhcsnacket.wordpress.com/2009/11/26/lhc-fhc-vilket-ar-segerreceptet/</link>
<pubDate>Thu, 26 Nov 2009 15:00:29 +0000</pubDate>
<dc:creator>fhcsnacket</dc:creator>
<guid>http://fhcsnacket.wordpress.com/2009/11/26/lhc-fhc-vilket-ar-segerreceptet/</guid>
<description><![CDATA[Finns det något som talar för Frölunda idag? Ja, att man är under isen och som det heter i låten ”Th]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Finns det något som talar för Frölunda idag?</p>
<p>Ja, att man är under isen och som det heter i låten ”<a href="http://open.spotify.com/track/095IqRUnG8pYvFPUK8eRLa">The only way is up</a>” med artisten som heter The Kinky Boyz. (Nä, den ligger inte i Spotify-listan &#8211; någon ordning får det vara)</p>
<p>Jag ser inte fram emot den här matchen. Visst jag tycker alltid det är kul att sätta mig framför TV eller gå till Scandinavium för att se Frölunda men den här matchen kan verkligen gå riktigt åt skogen. Hela laget måste idag vara mycket disciplinerade för att hålla Tjeck-kedjan stången. Frågan är om man klarar detta i 60 minuter? Antagligen inte, men vi får hoppas att det finns tillräckligt mycket energi kvar för att anfalla och göra några baljor ändå. Vi kan aldrig ha sån tur med Norrena som förra matchen.</p>
<p>Ibland blir jag enormt imponerad över hur Frölunda med Dahlén vid rodret går ut och verkligen tar tag i taktpinnen på bortaplan i vissa matcher. Man gör det klart att detta är vår match och vi ska spela som om det är vår hemmaplan – jag gillar den inställningen. Taktiken är oftast att slänga in Blomman och kompani vid nedsläpp och försöka få tryck direkt. Ibland lyckas det och ibland är Freddan så laddad att han kör över första bästa spelare och sedan får vi utvisning mot oss. Problem uppstår dock de gånger när Checking-linen verkligen får trycket och sedan kommer vår enda producerande kedja med Olimb och Kallio in skapar några heta chanser utan att få utdelning. Så där kan det ibland fortsätta en hel period och sedan är bränslet slut. Ett problem är att det högt checkande spelet innebär tyvärr allt för ofta ett 0-0 resultat – vilket jag tror inte är riktigt tanken med den taktiken.</p>
<p>***</p>
<p>Ska FHC ta detta idag måste man antingen göra mål riktigt tidigt alternativt verkligen värdera sina lägen innan man kör på för allt man har.</p>
<p>***</p>
<p>Förövrigt måste jag lämna all cred som går till Honken. Han har verkligen varit den målvakten som vi trodde att vi värvat. Han har varit ruskigt stabil i det senaste och jag hoppas verkligen att han kan hålla denna nivån ett tag till.</p>
<p>***<br />
Om BomBom-Blomman fortsätter spela som han gjort de senaste matcherna och adderar att det är match i Linköping idag så misstänker jag att han kommer att vara skogstokig idag. Det kan bli sevärt. Jämtin ska nog hålla sig på bänken idag.  8 tacklingar senast &#8211; hur många blir det idag?</p>
<p>***<br />
Så där ja, nu var man positiv igen!<br />
Nu ser vi till att plocka en poäng i chockladlådan idag!</p>
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<title><![CDATA[Troythulu's Nu'z]]></title>
<link>http://kestalusrealm.wordpress.com/2009/11/25/troythulus-nuz-12/</link>
<pubDate>Wed, 25 Nov 2009 22:36:41 +0000</pubDate>
<dc:creator>Troythulu</dc:creator>
<guid>http://kestalusrealm.wordpress.com/2009/11/25/troythulus-nuz-12/</guid>
<description><![CDATA[Cassini Sends Back Images of Enceladus as Winter Nears&#8230; &#8230;and Two More Awesome Pictures o]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><ul>
<li><a href="http://www.jpl.nasa.gov/news/features.cfm?feature=2372">Cassini Sends Back Images of Enceladus as Winter Nears&#8230;</a></li>
</ul>
<ul>
<li><a href="http://planetary.org/blog/article/00002227/">&#8230;and Two More Awesome Pictures of the Enceladus Flyby&#8230;</a></li>
</ul>
<ul>
<li><strong>Skeptical topic:</strong> <a href="http://mediamatters.org/research/200911250020?utm_source=feedburner&#38;utm_medium=feed&#38;utm_campaign=Feed%3A+mediamatters%2Flatest+%28Media+Matters+-+Latest+Items%29">Global Warming denier not even close on 2009 temperatures&#8230;</a></li>
</ul>
<ul>
<li><a href="http://www.newscientist.com/article/mg20427354.900-future-colliders-beyond-the-lhc.html">Future particle accelerators: beyond the Large Hadron Collider&#8230;</a></li>
</ul>
<ul>
<li><strong>Tech:</strong><a href="http://news.discovery.com/tech/smart-armor-bullet-electricity.html"> Smart Armor Learns More With Every Bullet&#8230;</a></li>
</ul>
<ul>
<li><a href="http://blogs.discovermagazine.com/badastronomy/2009/11/25/the-milky-way-bulges-with-cannibalized-corpses/">The Milky Way galaxy bulges with cannibalized corpses&#8230;</a></li>
</ul>
<ul>
<li><strong>Skeptical topic:</strong> <a href="http://news.discovery.com/space/climategate-and-other-nonsense.html">&#8220;Climategate&#8221; and Other Nonsense&#8230;</a></li>
</ul>
<ul>
<li><a href="http://science.nasa.gov/headlines/y2009/24nov_solartsunami.htm?list27315">Mystery of the Solar Tsunami: Monster Waves on the Sun are Real&#8230;</a></li>
</ul>
<ul>
<li><strong>Hey Kirk, here&#8217;s yer crocoduck!</strong> <a href="http://news.discovery.com/animals/galloping-dinosaur-eating-crocodiles-found-in-the-sahara.html">Galloping, Dinosaur Eating Crocodiles Found in the Sahara&#8230;</a></li>
</ul>
<ul>
<li><a href="http://apod.nasa.gov/apod/ap091125.html">Astronomy Picture of the Day for November 25, 2009&#8230;</a></li>
</ul>
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<title><![CDATA[LHC Could Find Extra Dimensions]]></title>
<link>http://bruceleeeowe.wordpress.com/2009/11/25/lhc-could-find-extra-dimensions/</link>
<pubDate>Wed, 25 Nov 2009 18:08:28 +0000</pubDate>
<dc:creator>bruceleeeowe</dc:creator>
<guid>http://bruceleeeowe.wordpress.com/2009/11/25/lhc-could-find-extra-dimensions/</guid>
<description><![CDATA[The LHC at CERN aims to find the long-awaited &#8220;Higgs particle&#8221;, which endows other parti]]></description>
<content:encoded><![CDATA[The LHC at CERN aims to find the long-awaited &#8220;Higgs particle&#8221;, which endows other parti]]></content:encoded>
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<title><![CDATA[Lhc: la ripartenza nelle parole di Lucio Rossi - notizie in tempo reale]]></title>
<link>http://loriscosta.wordpress.com/2009/11/25/lhc-la-ripartenza-nelle-parole-di-lucio-rossi-notizie-in-tempo-reale/</link>
<pubDate>Wed, 25 Nov 2009 17:46:57 +0000</pubDate>
<dc:creator>loriscosta</dc:creator>
<guid>http://loriscosta.wordpress.com/2009/11/25/lhc-la-ripartenza-nelle-parole-di-lucio-rossi-notizie-in-tempo-reale/</guid>
<description><![CDATA[Grazie a Lanfranco Belloni per questa segnalazione: C&#8217;era stato un ultimo contrattempo, ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img src="http://www.paranormalpeopleonline.com/wp-content/uploads/2009/10/CERN-logo.jpg" alt="http://www.paranormalpeopleonline.com/wp-content/uploads/2009/10/CERN-logo.jpg" /></p>
<p>Grazie a <a href="http://pubblico.fisica.unimi.it/index.php?option=com_contact&#38;task=view&#38;contact_id=4&#38;Itemid=">Lanfranco Belloni</a> per <a href="http://pubblico.fisica.unimi.it/ultime-dalla-ricerca/9-lhc/141-ripartenza-di-lhc-notizie-da-lucio-rossi">questa segnalazione</a>:</p>
<p>C&#8217;era stato un ultimo contrattempo, &#8216;quando un uccello mangiava un pezzo di pane su un trasformatore da 18 kV e ha fatto un corto circuito. L&#8217;uccello è stato carbonizzato e il pezzo di baguette è ancora là..Il tutto ha causato uno stop elettrico e la criogenia del settore si è fermata un po&#8230;&#8217;.<br />
E&#8217; la versione di Lucio Rossi del giallo della  baguette, ormai superato  con la ripartenza di LHC.</p>
<p>&#8216; Il guaio dello scorso anno era nato invece  da una connessione elettrica tra magneti superconduttori, il gioiello tecnologico prodotto di venti anni di ricerca, e spina dorsale  della macchina, (andato) in circuito aperto. Una connessione&#8230;una parte non  particolarmente difficile, anche se deve far passare 13mila ampère, cioè quanto basta per alimentare bene una cittadina, dissipando meno di una lampadina da notte&#8230;.Una connessione si fuse generando un arco&#8230;.</p>
<p>Poi una serie di eventi imprevisti  ha generato una salita vertiginosa di pressione dell&#8217;elio superfluido &#8230;e la pressione ha spostato i magneti da 30 tonnellate l&#8217;uno, in un effetto domino, che ha coinvolto circa 700 metri dell&#8217;acceleratore&#8230;&#8217;.<br />
In un articolo su Il Sussidiario Lucio Rossi racconta il lungo dramma delle riparazioni, a partire da quando una squadra di super-tecnici si trovò di fronte a un disastro ,apparentemente senza rimedio. Cui fece seguito una fase di necessaria auto-critica, con l&#8217;analisi dei punti &#8216;dove abbiamo sbagliato&#8217;.<br />
Proprio su questi si incentra l&#8217;articolo di Lucio Rossi, di cui  segnaliamo il link.<br />
Si tratta di un documento attuale, che in prospettiva potrà risultare utile  anche agli storici della scienza, generalmente  concentrati solo sulle minute dei meeting ufficiali.</p>
<p>&#160;</p>
<p><a title="Riparte LHC" href="http://www.ilsussidiario.net/articolo.aspx?articolo=48957">Articolo su Il Sussidiario</a></p>
<p>&#160;</p>
<p>I primi beam in circolazione ad LHC:</p>
<p><a title="Primi beams" href="http://press.web.cern.ch/press/PressReleases/Releases2009/PR17.09E.html">http://press.web.cern.ch/press/PressReleases/Releases2009/PR17.09E.html</a></p>
<p>&#160;</p>
<p>Per notizie in tempo reale su LHC:</p>
<ul>
<li><a href="http://press.web.cern.ch/press/lhc-first-physics/">http://press.web.cern.ch/press/lhc-first-physics/</a></li>
<li><a href="http://web.infn.it/atlas/">http://web.infn.it/atlas/</a></li>
<li><a href="http://twitter.com/cern">http://twitter.com/cern</a></li>
</ul>
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<title><![CDATA[Explain THAT Science! #13: Light]]></title>
<link>http://carlsagansdanceparty.wordpress.com/2009/11/25/explain-that-science-13-light/</link>
<pubDate>Wed, 25 Nov 2009 08:46:39 +0000</pubDate>
<dc:creator>logicmania</dc:creator>
<guid>http://carlsagansdanceparty.wordpress.com/2009/11/25/explain-that-science-13-light/</guid>
<description><![CDATA[By Columnist Harry Trunckles The other day, I was talking to my wife Anna about that no good asshole]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>By Columnist Harry Trunckles</p>
<p>The other day, I was talking to my wife Anna about that no good asshole she left me for and she said &#8220;He&#8217;s light years beyond you Harry, don&#8217;t even compare yourself to him!&#8221;</p>
<p>I just slapped her face right there. First of all, anyone who thinks that light years are a unit of measurement for how poor of a husband I am clearly doesn&#8217;t understand the basics of physics.  Light years describe how time is relative to light. This is similar to using &#8220;dog years&#8221; to describe your beloved pet&#8217;s rapid decrepidation. And a light year is roughly the length of time it takes for the universe to begin and then end. Kind of a useless measurement for us humans in my opinion.</p>
<p>Particle Physicists (More like particle suckacists! Zing!) have debated about the nature of light for the last few years. Is it a particle or is it a wave? Since this question isn&#8217;t being hotly debated by wave physicists, I am going to assume that the particle physicists are a bunch of biased bastards. There has actually been a number of rigorous studies done to determine this.  Some indicated it was a wave. Some indicated it was a particle.  The lazy conclusion they came to was that light was both a particle AND a wave. Ok, before you call them all idiots for arriving at such a counterintuitive notion, let me tell you about how they found this out. You&#8217;ll laugh even harder.</p>
<p>Anyway, let me go into the detail of this horrible Freudian-projected nightmare.  The scientist would tell you that if you have a photon entering two slits, then it could theoretically interfere with itself if you do not observe it.  If you do observe it, then the photon will not interfere with itself.  This is all just some bullshit fantasy that if your wife doesn&#8217;t observe you having sex with two other women, it&#8217;s okay, since there&#8217;s some kind of penile (represented by photons) interference.  Jeez scientists, grow up!</p>
<p>Its so patently obvious that this is the Freudian expression of the scientist&#8217;s desire for an adulterous threesome. One in which his penis interferes with itself.  Guess what science guys, I tried that excuse, but my wife still won&#8217;t return my calls.  Kind of punches a hole in your logic, don&#8217;t you think?</p>
<p><span style='text-align:center; display: block;'><object width='425' height='350'><param name='movie' value='http://www.youtube.com/v/wEzRdZGYNvA&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' /><param name='allowfullscreen' value='true' /><param name='wmode' value='transparent' /><embed src='http://www.youtube.com/v/wEzRdZGYNvA&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' type='application/x-shockwave-flash' allowfullscreen='true' width='425' height='350' wmode='transparent'></embed></object></span></p>
<p>Back in the day, scientists wanted to know if there was this luminiferous ether that light travelled through.  They never found the luminiferous ether!  No shit, you particle dumbassicists!  Didn&#8217;t you read Genesis chapter 1?  God spoke and He bespoke light.  Clearly light is supernatural in origin.  You dipshiticists.  However, to be fair, science was right about there needing to be a medium for light to travel through. You see, sound can&#8217;t travel in a vacuum. And since light is composed of God Voice Particles (GVP), any over-arching theory of cosmology has to include something like deity air (not some stupid ether!) for the sound particles to travel through.</p>
<p>My colleagues, occasionally secular godless science can be right.  One thing physicists got right was when they said that at the speed of light (you know, 9,999 miles per hour), time does not pass, so light experiences no aging just like God.  So clearly light could have only originated from God.  My goodness, what do these jerks at MIT do all day not to realize that ageless particles prove their own origin &#8211; their own origin being that of God!</p>
<p>Speaking of time coming to a stop, there&#8217;s this stupid theory called Relativation Theory (you&#8217;d think it would be about relatives or something) that says that time slows down as you approach the speed of light.  Let me tell you, I tried driving really fast in my car, and not only did time not slow down, but it actually seemed to pass faster as it didn&#8217;t take as long to get to my work.  I was 20 minutes early!  Wow, who came up with such a terrible theory?</p>
<p>Another claim by physicists is that light can&#8217;t escape a black hole.  How absurd!  Being the natural skeptic that I am, I went into my backyard where there are plenty of holes. I tossed a mirror down one and shone my flashlight into the hole. The beam of photons bounced right back out.  Maybe the scientist that came up with this theory fell down a crevasse as a kid or was just really scared of the dark.  Seems like astronomy might be a bad field to work in for you guys.</p>
<p>Light is actually not as complex as people think it is. The mainstream opinion is that humans only percieve a limited spectrum of light known as the &#8220;visible&#8221; and that there is also &#8220;Infrared&#8221;, &#8220;Ultraviolet,&#8221; &#8220;Radio,&#8221; &#8220;X-Rays,&#8221; and a bunch of other satanic beams of light rays.  The truth is that scientists saw their funding drying up after they discovered Red through Purple and went ahead and made up some new kinds of light.</p>
<p>Let me conclude on this note.  A particle physicist once asked me if a cat in some box was dead or alive due to some quantum mechanical mumbo jumbo aptly named Schumaker&#8217;s Cat.  What a stupid question.  I kill my neighbor&#8217;s cats routinely by boxing them up and tossing them into a river.  So I&#8217;m fairly certain that most of the time when a cat is in a box, it is dead.  Especially after I run it over with my Ford truck!  In the interest of testing this ridiculous claim, I took the litter of kittens my neighbor was trying to find a home for and put them all in a box.  Well, big disappointment. They took a whole day and a half to die, and no matter how many times I observed them they never came back to life. </p>
<p>Do you really want to believe a bunch of eggheads who are afraid of the dark, like to cheat on their wives, think cats can come back to life literally, and ask you stupid riddles about dead cats?</p>
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<title><![CDATA[LHC è tornato in funzione… e funziona ]]></title>
<link>http://paoblog.wordpress.com/2009/11/25/lhc-e-tornato-in-funzione%e2%80%a6-e-funziona/</link>
<pubDate>Wed, 25 Nov 2009 06:56:41 +0000</pubDate>
<dc:creator>paoblog</dc:creator>
<guid>http://paoblog.wordpress.com/2009/11/25/lhc-e-tornato-in-funzione%e2%80%a6-e-funziona/</guid>
<description><![CDATA[Ci siamo. Dico sul serio: il Large Hadron Collider, o LHC, il contestato acceleratore di particelle ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Ci siamo. Dico sul serio: il <a href="http://lhc.web.cern.ch/lhc/">Large Hadron Collider, o LHC</a>, il contestato acceleratore di particelle di Ginevra, è finalmente rientrato in funzione. Così, dopo problemi e stop vari, il progetto torna a far parlare di sé per i propri contenuti scientifici. E quale migliore occasione per lanciare i primi fasci di particelle e farle allegramente scontrare? La collisione è avvenuta in due punti distinti dell’impianto, il numero 1 e il numero 5, in corrispondenza dei sensori ATLAS e CMS. Successivamente, lo scontro è stato pianificato nei punti 2 e 8, al cospetto dei sensori ALICE e LHCb.</p>
<p>“È un grande risultato l’aver ottenuto questo risultato in così poco tempo”, ha affermato in una nota ufficiale <a href="http://en.wikipedia.org/wiki/Rolf-Dieter_Heuer">Rolf Heuer, Direttore Generale del CERN</a> e di questo progetto, al quale <a href="http://www.wired.it/news/archivio/2009-03/31/donne-alla-guida-dell%27acceleratore-di-particelle.aspx">partecipano circa 600 fisici italiani</a>. E <a title="IL supercervello tier-1 italiano " href="http://www.wired.it/news/archivio/2009-06/04/il-supercervello-tier-1-italiano-.aspx">l’apporto italiano pesa anche dal punto di vista economic</a>o, sull’LHC: circa il 20%, con un contributo di poco inferiore a 1 miliardo di euro erogati nell’arco di 10 anni.</p>
<p><a title="LHC è tornato in funzione… e funziona " href="http://www.wired.it/news/archivio/2009-11/24/lhc-e-tornato-in-funzione%E2%80%A6-e-funziona-.aspx"><img src="http://www.wired.it/_/media/continue-arrow.gif" alt="" /><em>Continua a leggere &#8220;LHC è tornato in funzione… e funziona &#8221; </em></a></p>
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<title><![CDATA[¿El Gran Colisionador podría desencadenar el fin del mundo?]]></title>
<link>http://lasteologias.wordpress.com/2009/11/25/%c2%bfel-gran-colisionador-podria-desencadenar-el-fin-del-mundo/</link>
<pubDate>Wed, 25 Nov 2009 04:53:00 +0000</pubDate>
<dc:creator>pauloarieu</dc:creator>
<guid>http://lasteologias.wordpress.com/2009/11/25/%c2%bfel-gran-colisionador-podria-desencadenar-el-fin-del-mundo/</guid>
<description><![CDATA[¿El Gran Colisionador podría desencadenar el fin del mundo? Posted: 23 Nov 2009 10:51 PM PST A rebuf]]></description>
<content:encoded><![CDATA[¿El Gran Colisionador podría desencadenar el fin del mundo? Posted: 23 Nov 2009 10:51 PM PST A rebuf]]></content:encoded>
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<title><![CDATA[Am primit asigurare că sfârşitul lumii nu vine în 2012!]]></title>
<link>http://x3mzone.wordpress.com/2009/11/25/am-primit-asigurare-ca-sfarsitul-lumii-nu-vine-in-2012/</link>
<pubDate>Tue, 24 Nov 2009 23:20:27 +0000</pubDate>
<dc:creator>x3m</dc:creator>
<guid>http://x3mzone.wordpress.com/2009/11/25/am-primit-asigurare-ca-sfarsitul-lumii-nu-vine-in-2012/</guid>
<description><![CDATA[Uitaţi de profeţii şi uitaţi de filmele care ne sugerează să ne bucurăm cât mai putem de viaţă căci ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Uitaţi de profeţii şi uitaţi de filmele care ne sugerează să ne bucurăm cât mai putem de viaţă căci  din 2012 nu vom mai exista.  NASA ne asigură că nu se vor ciocni planete, meteoriţii uriaşi ne vor ocoli, experimentul LHC este lipsit de pericole, iar specia umană va continua să se reproducă în acelaşi vacarm ca şi în ultimele decenii &#8211; poate chiar mai mare.</p>
<p><img class="aligncenter size-full wp-image-1594" title="new-world-order" src="http://x3mzone.wordpress.com/files/2009/11/new-world-order.jpg" alt="" width="500" height="442" /></p>
<p>Pe site-ul oficial NASA se găseşte o secţiune de întrebări şi răspunsuri legate de presupusa apocalipsă, unde cercetătorii încearcă să lămurească lumea, prin argumente ştiinţifice, că nu există pericolul să dispărem în 2012.</p>
<p>Iar dacă nici oamenii de la NASA nu sunt de încredere, atunci cine?</p>
<p>De fapt, mai important decât cât trăim sau cât mai avem de trăit este cum trăim? Iar când ne gândim că există pe pământ Lloyd Blankfein (&#8230;) care a spus că &#8220;face lucrarea lui Dumnezeu&#8221; prin intermediul băncii pe care o conduce (iar ca el sunt mulţi alţii), ne dăm seama că nu avem de ce să ne facem griji pentru că cineva acolo sus ne iubeşte. Ne iubeşte&#8230; $.</p>
<p>Sursa: go4it.ro</p>
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<title><![CDATA[Coliziunea mult dorita - CERN]]></title>
<link>http://mariusbardan.wordpress.com/2009/11/25/coliziunea-mult-dorita-cern/</link>
<pubDate>Tue, 24 Nov 2009 21:18:18 +0000</pubDate>
<dc:creator>mariusbardan</dc:creator>
<guid>http://mariusbardan.wordpress.com/2009/11/25/coliziunea-mult-dorita-cern/</guid>
<description><![CDATA[Auzeam anul trecut, prin septembrie daca nu ma insel, ceva zumzet puternic despre un accelerator de ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img class="alignleft size-medium wp-image-556" title="Bang" src="http://mariusbardan.wordpress.com/files/2009/11/bang.jpg?w=300" alt="" width="180" height="180" /></p>
<p>Auzeam anul trecut, prin septembrie daca nu ma insel, ceva zumzet puternic despre un accelerator de particule de la Geneva care urma sa infirme teoria creationismului, prin descoperirea particulei lui Dumnezeu, sau mai stiintific spus, particula lui Higgs. Dupa multe astfel de stiri, baietii anunta ca au nu stiu ce defectiuni, care urmau sa fie in lant mai apoi, si nu vor da drumul la accelerator decat peste o perioada de timp necunoscuta.</p>
<p>Ei bine, in ciuda tuturor speculatiilor, acceleratorul a reusit pana la urma sa fie pus in functiune, luni, realizand astfel prima coliziune de protoni. Coliziunea a fost deocamdata una de tip &#8216;beta&#8217; urmand ca de acum viteza particulelor sa fie marita pentru a se ajunge la rezultatul dorit. Ceea ce ma amuza pe mine la toata treaba asta este &#8216;coliziunea&#8217; care va avea din nou loc, inevitabil parca,  intre segmentul religios si cel stiintific. Oare vom scapa odata de ea?</p>
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<title><![CDATA[LHC: Las primeras colisiones fueron un éxito]]></title>
<link>http://sepuedesisequiere.wordpress.com/2009/11/24/lhc-las-primeras-colisiones-fueron-un-exito/</link>
<pubDate>Tue, 24 Nov 2009 17:45:44 +0000</pubDate>
<dc:creator>L3TRC</dc:creator>
<guid>http://sepuedesisequiere.wordpress.com/2009/11/24/lhc-las-primeras-colisiones-fueron-un-exito/</guid>
<description><![CDATA[El pasado fin de semana nuevamente se inyectaron haces de partículas en el recientemente restaurado ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p style="text-align:justify;"><span style="color:#333399;"><strong><img class="alignright" src="http://www.neoteo.com/Portals/0/imagenes/cache/9801x250y200.jpg" alt="" width="150" height="200" />El pasado fin de semana nuevamente se inyectaron haces de partículas en el recientemente restaurado </strong></span><span style="color:#333399;"><strong>Colisionador de Hadrones del CERN</strong></span><span style="color:#333399;"><strong>. Apenas tres días después de haber logrado mantener estables los haces que circulaban dentro de sus dos anillos, a las 14:22 horas de ayer, los ingenieros provocaron las primeras colisiones en el centro del detector Atlas. Más tarde se repitió la operación en el detector CMS, y por ultimo en los dos restantes: Alice y LHCb.</strong></span><span style="color:#333399;"><strong> Todas las pruebas fueron un éxito.</strong></span></p>
<p style="text-align:justify;"><span style="color:#333399;"><span style="color:#333399;">Parecía que este momento no iba a llegar nunca. Luego de que en 2008 se anunciase con bombos y platillos que el </span><span style="color:#333399;">acelerador de partículas</span><span style="color:#333399;"> más grande jamás construido </span><a href="http://www.neoteo.com/lhc-cronica-del-inicio-de-la-maquina-de-dios-5635.neo" target="_blank"><span style="color:#333399;">estaba listo para comenzar a funcionar</span></a><span style="color:#333399;">, una falla lo mantuvo fuera de combate </span><a href="http://www.neoteo.com/el-lhc-parado-hasta-verano-de-2009-14095.neo" target="_blank"><span style="color:#333399;">durante casi un año y medio</span></a><span style="color:#333399;">. Por fin, luego de varios meses de arduo trabajo y expectativas contenidas, los ingenieros a cargo de la máquina de 6.000 millones de dólares comprobaron que era capaz de mantener estables los haces de partículas que circulan por su interior. Y no solo eso:</span><span style="color:#333399;">ayer se provocaron colisiones en cada uno de sus cuatro detectores, que funcionaron a la perfección</span><span style="color:#333399;">. Parece que -por fin- el LHC está nuevamente </span><em><span style="color:#333399;">vivo</span></em><span style="color:#333399;">.     <strong>&#8212;&#8211;&#62;&#62;&#62;   <!--more--><br />
</strong></span></span></p>
<div class="wp-caption alignnone" style="width: 532px"><img class=" " src="http://www.neoteo.com/Portals/0/imagenes/cache/9802x580y1000.jpg" alt="" width="522" height="348" /><p class="wp-caption-text">Impresionante vista del detector CMS</p></div>
<p style="text-align:justify;"><span style="color:#333399;">Según los voceros del </span><strong><span style="color:#333399;">CERN</span></strong><span style="color:#333399;">, dos haces de partículas circularon simultáneamente por el túnel de 27 kilómetros de diámetro del </span><strong><span style="color:#333399;">Colisionador de Hadrones</span></strong><span style="color:#333399;">. Estos haces, compuestos por protones de baja energía, giraban en sentidos opuestos y pudieron detectarse con éxito sus colisiones. En un comunicado difundido anoche por el </span><em><span style="color:#333399;">Laboratorio Europeo de Física de Partículas</span></em><span style="color:#333399;">, el CERN explicó que cuando se hacen girar haces de partículas en ambos sentidos, sólo es posible hacer que se encuentren en dos puntos específicos del acelerador. Exactamente eso fue lo que se comprobó con éxito en la tarde de ayer. “</span><em><span style="color:#333399;">A primeras horas de la tarde, los haces se cruzaron en los puntos 1 y 5, donde están situados los detectores </span><strong><span style="color:#333399;">ATLAS</span></strong><span style="color:#333399;"> y </span></em><strong><em><span style="color:#333399;">CMS</span></em></strong><span style="color:#333399;">”. Estos detectores generan </span><a href="http://www.neoteo.com/el-cern-crea-un-grid-para-estudiar-el-big-bang.neo" target="_blank"><span style="color:#333399;">una asombrosa cantidad de información</span></a><span style="color:#333399;"> sobre las partículas que se generan en cada choque. “</span><em><span style="color:#333399;">Más tarde, los haces se cruzaron en los puntos 2 y 8, donde están los detectores </span><strong><span style="color:#333399;">ALICE</span></strong><span style="color:#333399;"> y </span></em><strong><em><span style="color:#333399;">LHCb</span></em></strong><span style="color:#333399;">”, señala el comunicado.</p>
<p>El director general del CERN, Rolf Heuer, en referencia a que el Gran Colisionador de Hadrones empezó a funcionar después de 14 meses de reparaciones, declaró que a pesar de todo “</span><em><span style="color:#333399;">es un gran éxito haber recorrido tanto camino en un tiempo tan corto</span></em><span style="color:#333399;">”. Según los datos proporcionados por el CERN, fue el detector ATLAS el que tuvo el honor de registrar el primer choque desde el “</span><em><span style="color:#333399;">reinicio</span></em><span style="color:#333399;">”. A pesar del éxito obtenido, que entusiasma tanto a los científicos como al público en general, Heuer se apura a aclarar que </span><em><span style="color:#333399;">“aún nos queda mucho camino antes de poder empezar el programa de física del LHC</span></em><span style="color:#333399;">”, por lo que antes de encarar definitivamente la búsqueda del predicho pero escurridizo </span><a href="http://www.neoteo.com/el-fermilab-a-punto-de-encontrar-el-boson-de-16132.neo" target="_blank"><span style="color:#333399;">Boson de Higgs</span></a><span style="color:#333399;"> se realizarán varios ensayos más destinados a comprobar el funcionamiento de la gigantesca máquina.</span></p>
<p style="text-align:justify;"><span style="color:#333399;"> </span></p>
<div class="wp-caption alignnone" style="width: 532px"><img class=" " src="http://www.neoteo.com/Portals/0/imagenes/cache/9803x580y1000.jpg" alt="" width="522" height="392" /><p class="wp-caption-text">El LHC empezó a funcionar después de permanecer 14 meses parado.</p></div>
<p style="text-align:justify;"><span style="color:#333399;">Fabiola Gianotti,  científico que tiene a su cargo los comunicados de prensa referidos al detector ATLAS, dice que </span><em><span style="color:#333399;">“se trata de una noticia formidable, es el principio de una era fantástica de física y, esperemos, de descubrimientos. Hemos necesitado 20 años de esfuerzos de la comunidad internacional para construir esta máquina y sus detectores</span></em><span style="color:#333399;">”. Este sentimiento es compartido por los demás integrantes del equipo internacional a cargo de la operación del LHC. Tejinder Virdee, portavoz del CMS, en línea con las declaraciones de Gianotti, dice que </span><em><span style="color:#333399;">“estas primeras colisiones anuncian la segunda mitad de este increíble viaje de descubrimiento de los secretos de la naturaleza</span></em><span style="color:#333399;">”.</p>
<p>“</span><em><span style="color:#333399;">Las huellas [de las colisiones] que observamos son magníficas. Estamos preparados para poder recoger datos en los próximos días</span></em><span style="color:#333399;">”, dijo Andrei Golutvin, a cargo de otro de los detectores. Es indudable que todo el mundo estaba esperando este momento. David Barney, otro de los cientos de físicos que prácticamente viven en los pasillos del LHC declaró: “</span><em><span style="color:#333399;">Es increíble de verdad, no esperábamos poder volver a poner en marcha el LHC tan rápido. Estamos muy contentos, todo parece estar funcionando de forma excelente.</span></em><span style="color:#333399;">” Luego de haber gastado </span><a href="http://www.neoteo.com/un-experimento-de-6-000-millones-de-dolares.neo" target="_blank"><span style="color:#333399;">semejante monto de dinero</span></a><span style="color:#333399;"> y 20 años de tiempo, las sucesivas fallas del LHC habían puesto bastante nerviosos a buena parte de los físicos. Sin embargo,</span><strong><span style="color:#333399;">los ensayos efectuados ayer confirman que el LHC goza de buena salud</span></strong><span style="color:#333399;">, y que en breve podremos comenzar a trastear con él. Señoras y señores, cojan sus palomitas de maíz que el espectáculo más grande la física de partículas jamás soñado está por comenzar.</span></p>
<p>&#160;</p>
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<title><![CDATA[Large Hadron Collider in Betrieb, Ende der Welt fällt aus]]></title>
<link>http://11k2.wordpress.com/2009/11/24/large-hadron-collider-in-betrieb-ende-der-welt-fallt-aus/</link>
<pubDate>Tue, 24 Nov 2009 17:13:41 +0000</pubDate>
<dc:creator>Fritz</dc:creator>
<guid>http://11k2.wordpress.com/2009/11/24/large-hadron-collider-in-betrieb-ende-der-welt-fallt-aus/</guid>
<description><![CDATA[Kein schwarzes Loch, keine eilig herbeifliegenden Aliens, keine ernsten Probleme mit der Raum-Zeit-K]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><a href="http://11k2.wordpress.com/files/2009/11/09112424nov09oihi7ty12cern.jpg"><img class="alignnone size-full wp-image-12704" title="09112424nov09oihi7ty12cern" src="http://11k2.wordpress.com/files/2009/11/09112424nov09oihi7ty12cern.jpg" alt="" width="460" height="283" /></a></p>
<p>Kein schwarzes Loch, keine eilig herbeifliegenden Aliens, keine ernsten Probleme mit der Raum-Zeit-Kontinuität: Der LHC des Cern bei Genf ging am Montag in Betrieb, nachmittags wurden die ersten Protonen-Kollisionen aufgezeichnet. Der 27 Kilometer lange, mit 1200 Supraleiter-Magneten bestückte Beschleuniger wurde 14 Monate lang repariert und ist jetzt voll funktionsfähig. (<a href="http://news.bbc.co.uk/2/hi/science/nature/8375486.stm" target="_blank">bbc</a> via <a href="http://www.engadget.com/2009/11/24/large-hadron-collider-reboots-makes-first-protonic-bang/" target="_blank">engadget</a>)</p>
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<title><![CDATA[LHC has 1st collisions/Obama announces science ed campaign]]></title>
<link>http://stevelovesmusicscience.wordpress.com/2009/11/24/lhc-has-1st-collisionsobama-announces-science-ed-campaign/</link>
<pubDate>Tue, 24 Nov 2009 16:59:24 +0000</pubDate>
<dc:creator>stevecrossrock</dc:creator>
<guid>http://stevelovesmusicscience.wordpress.com/2009/11/24/lhc-has-1st-collisionsobama-announces-science-ed-campaign/</guid>
<description><![CDATA[Exciting news today in the world of science! First, the Large Hadron Collider underwent several test]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Exciting news today in the world of science!</p>
<p style="text-align:center;"><a href="http://scienceblogs.com/startswithabang/2009/05/the_lhc_black_holes_and_you.php"><img class="aligncenter" src="http://scienceblogs.com/startswithabang/upload/2009/05/the_lhc_black_holes_and_you/lhc-sim.jpg" alt="" width="538" height="188" /></a></p>
<p>First, the Large Hadron Collider underwent several tests last week in which beams of protons were successfully circulated around the massive 17-mile installation. Those tests all pointed to a &#8220;go&#8221; for the first actual collisions, which happened yesterday. These collisions were still only tests, and nowhere near the full power needed to look for the elusive Higgs Boson. But with this first collision, the LHC is now <em>officially </em>the world&#8217;s biggest functioning particle colider. There&#8217;s still a lot of testing and preparation to do before they start doing the &#8220;real&#8221; experiments, but this is still very exciting. (Via <a href="http://news.discovery.com/space/first-proton-collisions-in-the-lhc.html" target="_blank">Discovery News</a>)</p>
<p>Secondly, yesterday also marked the kickoff of a new science education campaign by the Obama Administration. I can&#8217;t even describe how happy I am to know this is happening. It&#8217;s the best government-related news I&#8217;ve heard in a loooong time&#8230; probably since Obama won the election. I will echo <a href="http://blogs.discovermagazine.com/badastronomy/2009/11/23/obama-kicks-off-massive-science-education-effort/" target="_blank">Dr. Phil Plait&#8217;s sentiments</a> that the following quote from Obama&#8217;s speech is a symphony to my ears: &#8220;We&#8217;re going to show young people how cool science can be.&#8221;</p>
<p>WIN. EPIC WIN. There may yet be hope for humanity.</p>
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<title><![CDATA[Ihr dürft Angst haben]]></title>
<link>http://majaktuell.wordpress.de/2009/11/24/ihr-durft-angst-haben/</link>
<pubDate>Tue, 24 Nov 2009 16:39:28 +0000</pubDate>
<dc:creator>martin297</dc:creator>
<guid>http://majaktuell.wordpress.de/2009/11/24/ihr-durft-angst-haben/</guid>
<description><![CDATA[Nun ist es von den Medien offiziell bestätigt worden: Ihr, einschließlich mir dürft ab sofort völlig]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Nun ist es von den Medien offiziell bestätigt worden: Ihr, einschließlich mir dürft ab sofort völlig normal, ohne dass irgendwelche Komplikationen auftauchen, eure Angst ausleben, denn…</p>
<ol>
<li>… es ist in einem Monat Weihnachten.</li>
<li>… die Patentierung des Stacheldrahtes jährt sich bereits zum 135. mal.</li>
<li>… der LHC im CERN wurde heute wiederbelebt.</li>
</ol>
<p><!--more-->Offensichtlich scheint alles höchst angsteinwirkend zu sein.</p>
<p>Lassen wir mal die unwichtigeren Punkte außer Acht: Werden wir nun von einem gigantischen Antimateriestrudel oder einem Schwarzen Loch getötet? NEIN, Viel schlimmer!</p>
<p>Vorhin hatte ich in meiner ersten Fahrstunde das Vergnügen, im Radio mitbekommen zu haben, dass ein algerischstämmiger Franzose, welcher im CERN als Ingenieur angestellt war, versucht hatte Terroranschläge auf die französische Armee zu verüben. Dafür stehen ihm doch die grausamsten Mittel zur Verfügung… palsma-rifles, Warp-Kanonen, Kill-O-Zapps, Photonenflinten, Schwarze Löcher, CERN-Dienstwägen, und so weiter.</p>
<p>Was wäre nur aus unserer geliebten <a href="http://www.blackfive.net/photos/uncategorized/imageimage001jpg01c6acd2693d9130.jpg">französischen Armee</a> geworden, hätten diese terroristischen Angriffe nicht vereitelt werden können? Genau, die Kernphysik hätte sich nie den Streitkräften als unglaublich toller wissenschaftlicher Bereich darbieten können, mit dessen Hilfe man Gammakanonen etc. problemlos realisieren kann. Dann hätte sich die Menschheit auch nie spätestens 2083 (falls 2012 doch ein Fake von so ein paar Indianern war)  selbst ausrotten können…</p>
<p>Jaja, so wird es ko… ACHTUNG ACHTUNG, soeben kam ein neues, furchteinflößendes Ereignis in den Mittelpunkt der Weltöffentlichkeit gerückt:</p>
<p style="text-align:center;">IN EINEM MONAT IST SCHON WEIHNACHTEN, UND KARSTADT SCHLIEßT MASSENWEISE FILIALEN!!! OH, MEIN GOTT!!! (AUSVER)KAUFRAUSCH!!! RETTE SICH WER KANN!!!</p>
<p style="text-align:center;"><strong>¡KONSUM!</strong></p>
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<title><![CDATA[Im LHC kollidieren schon die Protonen, noch mit geringer Energie und Teilchenzahl]]></title>
<link>http://skyweek.wordpress.com/2009/11/24/im-lhc-kollidieren-schon-die-protonen-noch-mit-geringer/</link>
<pubDate>Tue, 24 Nov 2009 16:23:18 +0000</pubDate>
<dc:creator>skyweek</dc:creator>
<guid>http://skyweek.wordpress.com/2009/11/24/im-lhc-kollidieren-schon-die-protonen-noch-mit-geringer/</guid>
<description><![CDATA[Heute vor 50 Jahren hat das &#8211; noch immer verwendete! &#8211; Protonen-Synchrotron am CERN zum ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Heute vor 50 Jahren hat das &#8211; noch immer verwendete! &#8211; Protonen-Synchrotron am CERN <a href="http://public.web.cern.ch/public/en/Research/PS-en.html">zum ersten Mal Protonen beschleunigt</a>. Und gestern wurden im LHC <a href="http://press.web.cern.ch/press/PressReleases/Releases2009/PR17.09E.html">die ersten Proton-Proton-Kollisionen</a> der entgegengesetzt umlaufenden Strahlen registriert, nachdem die <a href="http://skyweek.wordpress.com/2009/11/20/kosmische-kuriose-kompakt">Inbetriebnahme am Wochenende</a> überraschend glatt gelungen war. Nachdem der Gleichlauf der Strahlen sichergestellt war, ließ man sie in den vier riesigen Detektoren kollidieren, erst ATLAS und CMS, dann ALICE und LHCb. Dass es dabei überhaupt zu einer nennenswerten Zahl von <a href="http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/collisions/">Zusammenstößen</a> kam, ist erstaunlich, sind doch drastisch weniger Protonen unterwegs als später im Regelbetrieb und auch nicht so gut &#8220;gezielt&#8221;. Die CERN-Forscher staunen selbst, dass sie in so kurzer Zeit schon so weit gekommen sind, und es ist bereits von &#8220;serious data taking in a few days time&#8221; die Rede. Die Injektionsenergie der Strahlen liegt derzeit bei jeweils 450 GeV: Bis Weihnachten soll das auf 1.2 TeV gesteigert werden, und dann sollten auch schon eine Menge Kollisionsereignisse im Kasten sein. Mehr von <a href="http://www.symmetrymagazine.org/breaking/2009/11/23/first-particles-collide-in-the-large-hadron-collider">Symmetry Breaking</a>, <a href="http://blogs.discovermagazine.com/cosmicvariance/2009/11/23/first-collisions-in-the-lhc">Cosmic Variance</a>, <a href="http://arstechnica.com/science/news/2009/11/large-hadron-collider-starts-up-produces-first-collisions.ars">Ars Technica</a>, <a href="http://physicsworld.com/blog/2009/11/first_collisions_at_the_lhc.html">Physics World</a>, <a href="http://www.nytimes.com/2009/11/24/science/24collide.html">New York Times</a>, <a href="http://www.newscientist.com/article/dn18186">New Scientist</a>, <a href="http://news.bbc.co.uk/2/hi/science/nature/8375486.stm">BBC<a>, <a href="http://www.telegraph.co.uk/science/large-hadron-collider/6638873/Large-Hadron-Collider-produces-first-proton-collisions-in-Big-Bang-mission.html">Telegraph</a>, <a href="http://scitech.blogs.cnn.com/2009/11/23/large-hadron-collider-has-first-collisions">CNN</a>, <a href="http://news.discovery.com/space/first-proton-collisions-in-the-lhc.html">Discovery</a>, <a href="http://www.universetoday.com/2009/11/23/first-collisions-for-the-lhc">Universe Today</a>, <a href="http://blogs.nature.com/news/thegreatbeyond/2009/11/lhc_crosses_the_beams.html">Nature Blog</a>, <a href="http://www.nytimes.com/aponline/2009/11/23/science/AP-EU-SCI-Big-Bang-Machine.html">AP</a>, <a href="http://www.reuters.com/article/scienceNews/idUSTRE5AJ3TQ20091123">Reuters</a>, <a href="http://ksjtracker.mit.edu/2009/11/24/lots-of-clean-terse-ink-the-never-ending-story-of-the-lhc-startup-part-n">Tracker</a>, <a href="http://www.spiegel.de/wissenschaft/technik/0,1518,662983,00.html">Spiegel</a>, <a href="http://www.scienceblogs.de/astrodicticum-simplex/2009/11/die-ersten-teilchen-sind-heute-im-lhc-kollidiert.php">ScienceBlogs</a>.</p>
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<title><![CDATA[LHC Achieves First Particle Collisions]]></title>
<link>http://fhsukams.wordpress.com/2009/11/24/lhc-achieves-first-particle-collisions/</link>
<pubDate>Tue, 24 Nov 2009 15:19:33 +0000</pubDate>
<dc:creator>fhsukams</dc:creator>
<guid>http://fhsukams.wordpress.com/2009/11/24/lhc-achieves-first-particle-collisions/</guid>
<description><![CDATA[&nbsp; The endcap of the Compact Muon Solenoid at the Large Hadron Collider at CERN. Photo credit: A]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>&#160;</p>
<div id="attachment_3982" class="wp-caption alignright" style="width: 235px"><a href="http://fhsukams.wordpress.com/files/2009/08/cern_cms_endcap_2005_october.jpg"><img class="size-medium wp-image-3982" title="LHC" src="http://fhsukams.wordpress.com/files/2009/08/cern_cms_endcap_2005_october.jpg?w=225" alt="" width="225" height="300" /></a><p class="wp-caption-text">The endcap of the Compact Muon Solenoid at the Large Hadron Collider at CERN.  Photo credit:  Arpad Horvath</p></div>
<p>Restarted this past weekend, CERN announced yesterday that physicists used the Large Hadron Collider (LHC) to <a href="http://news.nationalgeographic.com/news/2009/11/091123-large-hadron-collider-lhc-restart-beams.html" target="_blank">smash protons together for the first time</a>.  The collision occurred at low energy with each proton beam supplying 450 billion electron volts (GeV) creating a total of 900 GeV.  The next stage for the LHC will be to accelerate the proton beams to 1.2 teraelectron volts (TeV) each and collide the beam&#8217;s protons.  If achieved, this would be the highest energy level yet achieved by any particle accelerator.  European Organisation for Nuclear Research (CERN) expects this next stage to occur sometime in the next few days before a planned winter break.</p>
<p>&#160;</p>
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<title><![CDATA[LHC: Some interesting techical updates]]></title>
<link>http://vkulkarni.wordpress.com/2009/11/24/lhc-some-interesting-techical-updates/</link>
<pubDate>Tue, 24 Nov 2009 15:16:31 +0000</pubDate>
<dc:creator>vkulkarni</dc:creator>
<guid>http://vkulkarni.wordpress.com/2009/11/24/lhc-some-interesting-techical-updates/</guid>
<description><![CDATA[I am really excited with the commencement of the Large hadron Collider (LHC) again. What is it? Goog]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>I am really excited with the commencement of the <a href="http://en.wikipedia.org/wiki/Large_Hadron_Collider">Large hadron Collider</a> (LHC) again. What is it? Google out for that <img src='http://s.wordpress.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> . CERN has updated that they are a step closer to the Big-Bang simulation.Physicist there have smashed protons with nearly the speed of light for the first time in the world&#8217;s largest particle accelerator.</p>
<p>The recent successful collision occurred at 900 billion electron Volts (GeV), each beam supplying 450 GeV.  It took 3 days for the Big-Bang kind of effect to simulate in the 27 Km  ring. They are planning to hit the beams with 1.2 teraelectron volts each(Phew!!). This is to occur within next few days before the LHC is shut down for the winter break. It will resume again in Jan 2010.</p>
<p>LHC has the potential of 7 electron Volts per beam, leveraging which, is expected to reveal the mystery of Universe and also the existence of theoretical Higgs boson many times called <a href="http://en.wikipedia.org/wiki/Higgs_boson">The God Particle</a> which could help explaining the origin on mass in the Universe. </p>
<p>Now, waiting for the results before their winter break..Hoping for the best&#8230;</p>
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<title><![CDATA[El LHC creó sus primeras colisiones ... y el mundo no se extingió.]]></title>
<link>http://aulageek.wordpress.com/2009/11/24/el-lhc-creo-sus-primeras-colisiones-y-el-mundo-no-se-extingio/</link>
<pubDate>Tue, 24 Nov 2009 15:04:31 +0000</pubDate>
<dc:creator>Francisco M. Luque</dc:creator>
<guid>http://aulageek.wordpress.com/2009/11/24/el-lhc-creo-sus-primeras-colisiones-y-el-mundo-no-se-extingio/</guid>
<description><![CDATA[Puede que nuestras esperanzas fueran inciertas: el Gran Colisionador de Hadrones no acabará con el m]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Puede que nuestras esperanzas fueran inciertas: <strong>el Gran Colisionador de Hadrones no acabará con el mundo</strong>. Ayer, el LHC hizo chocar por primera vez dos rayos de partículas. En el futuro próximo, aumentarán la intensidad y la celeridad de los rayos, de modo que para Navidad alcance 1,2 TeV <strong>(teraelectronvoltios)</strong> por rayo y tendrían ya multitud de datos para sus experimentos.Aquí os dejamos unas imágenes sobre la primera colisión:</p>
<p style="text-align:center;">
<p style="text-align:center;">
<p style="text-align:center;"><a href="http://aulageek.wordpress.com/files/2009/11/lhc2009primeracolision.jpg"><img class="size-medium wp-image-1021 aligncenter" title="LHC2009PrimeraColision" src="http://aulageek.wordpress.com/files/2009/11/lhc2009primeracolision.jpg?w=300" alt="" width="500" height="350" /></a></p>
<p style="text-align:center;"><a href="http://aulageek.wordpress.com/files/2009/11/lhccms-150x1500.jpg"><img class="size-full wp-image-1022 aligncenter" title="lhccms-150x1500" src="http://aulageek.wordpress.com/files/2009/11/lhccms-150x1500.jpg" alt="" width="150" height="150" /></a></p>
<p><a href="http://aulageek.wordpress.com/files/2009/11/43545151.jpg"><img class="aligncenter size-full wp-image-1024" title="4354515" src="http://aulageek.wordpress.com/files/2009/11/43545151.jpg" alt="" width="150" height="150" /></a></p>
<p><strong>Vía&#124;</strong> <a href="http://www.gizmodo.es">Gizmodo</a></p>
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<title><![CDATA[Dotti medici e sapienti. Soprattutto sapienti.]]></title>
<link>http://discanto.wordpress.com/2009/11/24/dotti-medici-e-sapienti-soprattutto-sapienti/</link>
<pubDate>Tue, 24 Nov 2009 14:22:54 +0000</pubDate>
<dc:creator>Fabio</dc:creator>
<guid>http://discanto.wordpress.com/2009/11/24/dotti-medici-e-sapienti-soprattutto-sapienti/</guid>
<description><![CDATA[Io lavoro in un posto dove c&#8217;è un sacco di gente che viene dal mondo universitario. E spesso d]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Io lavoro in un posto dove c&#8217;è un sacco di gente che viene dal mondo universitario. E spesso di quel mondo lì fa ancora parte.</p>
<p>In questi giorni, <a href="http://www.corriere.it/scienze_e_tecnologie/09_novembre_23/cern_fasci_particelle_ginevra_0baf9590-d86b-11de-a7cd-00144f02aabc.shtml">è rientrato in funzione LHC,</a> l&#8217;acceleratore del CERN, dopo un guasto che l&#8217;ha costretto a rimanere fermo diversi mesi.</p>
<p>Oggi, sulla mailing list del posto dove io lavoro sono girate queste mail.</p>
<p>La prima mail, che ha scatenato l&#8217;inferno:</p>
<blockquote><p>Sì,la notizia è notevole,ma vorrei ribadire che la fisica delle particelle non &#8220;spiega&#8221; il Big Bang,come si legge pubblicitariamente ma ne spiega le fasi successive:è un bel momento,ma andiamoci piano con le fantasie particellari e relativi sensi di &#8220;grandezza&#8221;magari, di chi se ne occupa:non confondiamo campi diversi tra loro &#8230;</p></blockquote>
<p>Risposta:</p>
<blockquote><p>La mia teoria secondo la quale l&#8217; umanita&#8217; ancora non si e&#8217; estinta grazie all&#8217; aiuto del Cielo trova un&#8217; altra conferma (tra le tante altre).<br />
Lo ripeto: utilizzare così tanti fondi per ricerche potenzialmente rischiose e&#8217; una cosa immorale viste le tante emergenze planetarie.</p></blockquote>
<p>E ancora:</p>
<blockquote><p>Gia&#8217; in passato ci sono state varie testimonianze dell&#8217; interferenza di UFO con il funzionamento<br />
di impianti nucleari, tanto da costringere l&#8217; allestimento di schermature contro tali interferenze.<br />
Mi auguro che a Ginevra continuino ad avere altri malfunzionamenti a catena !<br />
Nel libro &#8220;la voce degli extraplanetari &#8211; ed. mediterranee&#8221; l&#8217; umanita&#8217; viene ammonita<br />
in tal senso : se sara&#8217; da noi minacciato il Creato potra&#8217; essere usata la forza contro di noi,<br />
ma come ultima spiaggia.<br />
Sarebbe bene seguire i loro consigli tramite la strada della ragionevolezza e non perche&#8217; minacciati.<br />
Un cambiamento dovra&#8217; avvenire e tutto dipendera&#8217; dal livello di consapevolezza<br />
che l&#8217; umanita&#8217; avra&#8217; raggiunto.<br />
La consapevolezza in quanto “frequenza fondamentale di vibrazione” dei quanti di spazio può essere consideratala vera entità elementare<br />
che trasmette l’ informazione tra due particelle quantistiche, spiegando la non localita&#8217; dei fenomeni quantistici.<br />
Da questo punto di vista, quindi, l&#8217; intero Universo avrebbe una sua Consapevolezza.</p></blockquote>
<p>Che dire? A noi Giacobbo ci fa una pippa.</p>
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<title><![CDATA[La bêtise]]></title>
<link>http://lecomptoir.wordpress.com/2009/11/24/la-betise/</link>
<pubDate>Tue, 24 Nov 2009 14:15:30 +0000</pubDate>
<dc:creator>Kram</dc:creator>
<guid>http://lecomptoir.wordpress.com/2009/11/24/la-betise/</guid>
<description><![CDATA[Comme vous le savez probablement, le LHC (Large Hadron Collider), extraordinaire machine à remonter ]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Comme vous le savez probablement, le LHC (Large Hadron Collider), extraordinaire <a href="http://public.web.cern.ch/public/fr/LHC/ALICE-fr.html">machine à remonter le temps</a>, bijou du CERN (Conseil Européen pour la Recherche Nucléaire), congélateur le plus important au monde (il y règne une température de -271.3°, soit 1,9 K au dessus du zéro absolu), joujou des meilleurs physiciens de notre temps, caprice à 3,76 milliards d’euros pour cette poignée d’hurluberlus, <a href="http://public.web.cern.ch/public/Welcome-fr.html">fonctionne</a> à nouveau.</p>
<p>En un mot comme en cent, cet engin est l’objet technologique le plus avancé au monde, n’ayons pas peur de le dire tout haut.</p>
<p>Il a coûté une fortune.</p>
<p>Et il ne sert à rien.</p>
<p>Enfin à rien de vraiment « utile », puisqu’il n’a aucune finalité industrielle ou médicale à court terme. C’est de la physique fondamentale, de la science totalement épurée, simplement pour le savoir. Et c’est superbe, de mon point de vue tout du moins.</p>
<p>Enfin, il faut tempérer : il redémarre, mais à son rythme, puisque déjà, juste après Noël, il s’arrête à nouveau de trêve hivernale (électricité un peu chère en hiver, et comme le LHC consomme 120 MW…).</p>
<p>Afin de comprendre les enjeux liés à cette grosse bestiole, rien de mieux qu’un petit rap par ces mêmes chercheurs qui travaillent dessus :</p>
<p><span style='text-align:center; display: block;'><object width='425' height='350'><param name='movie' value='http://www.youtube.com/v/G5-WiehWAXY&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' /><param name='allowfullscreen' value='true' /><param name='wmode' value='transparent' /><embed src='http://www.youtube.com/v/G5-WiehWAXY&#038;rel=1&#038;fs=1&#038;showsearch=0&#038;hd=0' type='application/x-shockwave-flash' allowfullscreen='true' width='425' height='350' wmode='transparent'></embed></object></span></p>
<p>Le but de tout cela étant de répondre à une série de grandes questions, principalement autour du thème « le pourquoi du comment de la masse » :</p>
<p>On en a beaucoup entendu parler, le LHC devrait permettre de prouver l’existence du boson de Higgs, particule dont l’existence a été postulée en 1964 par le dénommé Peter Higgs « pour expliquer l’origine de la masse de toutes les particules de l’Univers, y compris la sienne propre » (E. Klein, CEA). Le Cern mène pour cela une course avec le so-called-famous Fermilab de Chicago, à qui trouvera le plus vite une vérification de l’existence de cette particule. L’idée est aussi d’aller plus loin, de chercher encore ailleurs, pour aller au delà des théories déjà existantes, pour faire avancer la connaissance (et accessoirement, justifier l’achat d’un accélérateur encore un peu plus gros et un peu plus puissant !).</p>
<p>Le saviez-vous ? : La matière visible ne représente que 4% de la masse totale de l’univers. Il y a aussi de la matière noire (23%) et de l’énergie sombre (73%). Pour expliquer tout ça, le concept de la supersymétrie des particules de matière noire a été mis comme hypothèse. Là, je suis un peu perdu, je l’admets, il faudra que je fasse des recherches dans ce sens pour comprendre toute cette logorrhée scientifique.</p>
<p>Lorsque de l’énergie se transforme en matière (si si, c’est possible, Einstein l’a montré !), il y a à la fois création de particules et d’antiparticules, qui, lorsqu’elles collisionnent, créent de l’énergie, l’antimatière étant une sorte de soeur jumelle de la matière, avec une charge opposée. Le fait est que nous vivons dans un monde (relativement) stable, qui ne s’annule pas sous notre nez, donc fait principalement de matière. Mais alors, où est l’antimatière ? Koikiluiéarrivé ?</p>
<p>Par ailleurs, il s’agit de recréer les conditions qui ont immédiatement suivi le Big Bang, époque où « tout » n’était qu’un bouillon de culture de particules. C’est ALICE qui se charge de cette expérience. L’idée étant, grâce à des collisions à haute énergie, de générer des conditions de températures cent mille fois plus élevées que dans le centre du soleil et pouvoir analyser un plasma de quarks et de gluons.</p>
<p>Enfin, éventuellement jeter un œil à la possibilité d’autres dimensions. Vous qui avez toujours rêvé d’écrire de la science-fiction, de parler de mondes inconnus et pourtant si proches : Tout est possible !</p>
<p>Pour répondre à tout cela, quand il sera en fonctionnement, il générera 700 Mo de données par seconde. Soit donc 15 000 000 Go par an. A titre de remise à l’échelle, cela représente à peu près 1% de toute l’information créée dans le monde par an. Pour gérer tout ça a été créée « La Grille », un réseau de milliers d’ordinateurs dans le monde, connectés par fibre optique à des débits supérieurs à 1 Go/s (il faut rappeler que c’était le Cern qui avait inventé le web), qui est le <a href="http://lcg.web.cern.ch/LCG/">plus puissant calculateur du monde</a>.</p>
<p><a href="http://lecomptoir.wordpress.com/files/2009/11/lhc-cern.jpg"><img class="alignnone size-full wp-image-27" title="LHC-CERN" src="http://lecomptoir.wordpress.com/files/2009/11/lhc-cern.jpg" alt="" width="500" height="402" /></a></p>
<p>Bon, jusque là, rien de nouveau sous le soleil. Enfin, si vous saviez déjà tout ça. Divers articles au sujet du redémarrage du LHC sont passés dans la presse. Je me propose juste de sélectionner un échantillon représentatif de la bêtise humaine :</p>
<p>« Mais ça va ouvrir des mondes parallèles et laisser passer des tas de bébêtes qui vont venir nous enquiquiner. »</p>
<p>« Dan Brown avait raison » (au sujet de l’antimatière… je vous laisse lire ses bouquins, de mon côté je n’ai pas de temps à perdre avec ça)</p>
<p>« &#8230; et moi qui croyais que la fin du monde était pour 2012»</p>
<p>« C’est une honte de dépenser autant d&#8217;énergie dans le contexte actuel, au moins attendre la fin de la période de chauffe&#8230; »</p>
<p>« Il n&#8217;y a pas unanimité dans le monde de la physique quant aux risques liés au LHC</p>
<p>Il existe un comité international contre le LHC qui s&#8217;appelle &#8220;conCERNed&#8221;.</p>
<p>La dernière action intentée par &#8220;conCERNed&#8221; les a conduit à saisir le Comité des droits de l&#8217;homme de l&#8217;ONU vis à vis des dangers que ferait courir le LHC à la population mondiale (Cf la tribune de Genève du 20.11.2009). »</p>
<p>Note : j’ai corrigé les fautes d’orthographe dans ces commentaires. J&#8217;aurais peut-être du m&#8217;abstenir, ça donnait une image plus juste de leurs auteurs.</p>
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<title><![CDATA[Partikelkollisioner i LHC!]]></title>
<link>http://kulmedfysik.wordpress.com/2009/11/24/partikelkollisioner-i-lhc/</link>
<pubDate>Tue, 24 Nov 2009 13:13:56 +0000</pubDate>
<dc:creator>åka</dc:creator>
<guid>http://kulmedfysik.wordpress.com/2009/11/24/partikelkollisioner-i-lhc/</guid>
<description><![CDATA[Det är lite svårt att komma åt att vara dagsaktuell här på bloggen tycker jag, med barn och allt ann]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><em>Det är lite svårt att komma åt att vara dagsaktuell här på bloggen tycker jag, med barn och allt annat som ska göras hinner jag inte med. Igår rapporterades i alla fall de första partikelkollisionerna i LHC, som rapporterades till exemepel <a href="http://www.dn.se/nyheter/vetenskap/cern-fick-protoner-att-krocka-1.1000430">i DN</a>. Jag bjöd in Arnaud Ferrari från Uppsala universitet att skriva några rader om saken. Här kommer hans gästinlägg.</em></p>
<p>I fredags lyckades forskarna vid <a href="http://public.web.cern.ch/public/">CERN</a> i Geneve få en protonstråle gå ett varv runt <a href="http://public.web.cern.ch/public/en/LHC/LHC-en.html">LHC</a> (Large Hadron Collider). Acceleratorn startades igen några dagar tidigare, efter ett års reparationer.  Bara nio dagar efter att LHC invigdes i september 2008 var det en elektrisk kortslutning mellan supraledande magneter, som orsakade ett läckage av helium i vakuumröret och därmed en stor olycka.</p>
<p>Under helgen har LHC-forskare jobbat hårt för att få stabila strålar i acceleratorn och redan i måndags morgon hade man två circulerande protonstrålar i LHC. Strax efter 14-tiden stod det också klart att man hade lyckats få dessa strålar att krocka med varandra i detektorerna <a href="http://atlas.ch/">ATLAS</a> och <a href="http://cms.cern.ch/">CMS</a>, och lite senare i <a href="http://aliceinfo.cern.ch/Public/Welcome.html">ALICE</a> och <a href="http://public.web.cern.ch/public/en/LHC/LHCb-en.html">LHCb</a>. Då var LHC inte längre bara en accelerator, utan också en kolliderare. Detta anses som en stor framgång, men det finns mycket arbete kvar innan verkliga experiment kan börja genomföras i början av nästa år. Fram tills dess kommer forskarna att arbeta på att öka energin i själva kollisionen.  Idag körs LHC på 900 <a href="http://sv.wikipedia.org/wiki/Elektronvolt">GeV</a> och borde nå 2.4 TeV innan slutet av 2009 och därmed nå den högsta kollisionsenergin någonsin.  (Tevatron i Chicago körs med en energi på 1.96 TeV).</p>
<p>Det skrevs en del om LHC i medierna de sista dagarna och tyvärr måste man konstatera att man om och om igen nämner farhågorna att LHC skulle skapa svarta hål som skulle leda till jordens undergång istället för att beskriva vilka stor insatser för vetenskapen den kommer att göra. Det handlar om sökandet efter Higgs-bosonen (som ger andra partiklar deras massa), supersymmetriska partiklar (som kan få teorin att bli stabil även vid högre energi och som dessutom är en kandidat till universums mörka materia), extra dimensioner, osv.</p>
<p>Nej, jorden kommer inte att gå under &#8212; och vi har mycket spännande fysik att se fram emot med LHC!</p>
<hr />
Liten fotnot om energierna i LHC:</p>
<p>En elektronvolt (eV) är den rörelseenergi som en elektron får när den faller genom en potentialskillnad på en volt. Det är en väldigt liten acceleration, och i en partikelaccelerator arbetar man förstås med många gånger dessa energier. En GeV (gigaelektronvolt) är en miljard elektronvolt, en TeV är 10^12 elektronvolt. Partiklar från rymden, kosmisk strålning alltså, kan ha energier upp till många tusen TeV även om det är rätt ovanligt. En mygga som väger 0.04 gram och som flyger med hastigheten 1 m/s har en rörelseenergi på ungefär två hundradels millijoule, vilket är ungefär 100 TeV (rätta mig om jag har fel, jag gjorde det här rätt hastigt). Det kan tyckas oväntat, eftersom man talar om att energierna i LHC är så enorma och man är van att tänka på en kollision med en mygga som ganska harmlös &#8212; skillnaden är energitätheten i kollisionerna när all den här energin är koncentrerad till ett par protoner i stället för en mygga som består av enorma antal atomer som var och en innehåller protoner.</p>
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<title><![CDATA[Hadrones suicidas]]></title>
<link>http://pieizquierdo.wordpress.com/2009/11/24/hadrones-suicidas/</link>
<pubDate>Tue, 24 Nov 2009 12:11:03 +0000</pubDate>
<dc:creator>Pie izquierdo</dc:creator>
<guid>http://pieizquierdo.wordpress.com/2009/11/24/hadrones-suicidas/</guid>
<description><![CDATA[Vuelve a funcionar el acelerador de partículas europeo LHC (Large Hadron Collider, algo así como Col]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Vuelve a funcionar el acelerador de partículas europeo LHC (<em>Large Hadron Collider</em>, algo así como <em>Colisionador de hadrones enorme</em>, un nombre muy original). Sí, sí&#8230; eso que los rumores decían que podía destruir el mundo.</p>
<p>Por lo visto se había estropeado, algo más tranquilizador que el anterior rumor. Pero ya está arreglado.</p>
<p>Ahora a dejar que los científicos del CERN (Organización europea para la investigación nuclear) se diviertan estrellando hadrones. ¿Y para qué? Parece que uno de los objetivos es conocer mejor esa materia oscura de la que llena &#8211; ¿o vacía? &#8211; el universo.  Hasta que sepan qué es, seguiré soñando.</p>
<p>Buenos días, pies izquierdos.</p>
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<title><![CDATA[2012 e o Fim dos Tempos]]></title>
<link>http://debatepronto.wordpress.com/2009/11/24/2012-e-o-fim-dos-tempos/</link>
<pubDate>Tue, 24 Nov 2009 12:01:15 +0000</pubDate>
<dc:creator>debatepronto</dc:creator>
<guid>http://debatepronto.wordpress.com/2009/11/24/2012-e-o-fim-dos-tempos/</guid>
<description><![CDATA[Estou me preparando para assistir o filme, espero que hoje. Mas, confesso: tenho minha opinião forma]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p>Estou me preparando para assistir o filme, espero que hoje. Mas, confesso: tenho minha opinião formada sobre alguns assuntos, porém o fim do mundo não é um deles. O fato é: estamos adiantando boa parte do processo. Aliás, mais uma coisinha: muito cuidado com o que ensinam aos seus filhos. Talvez sejam eles a ver, realmente, algo mais próximo do fim. Fico triste ao constatar isso, sabendo que muito do que fizemos &#8211; e fazemos &#8211; poderia e pode ser evitado.</p>
<p>Depois, não reclamem dos buracos que se abrem na cidade com a chuva, da água que entra, das pessoas que morrem e perdem casas&#8230;</p>
<p>Daniel Pinheiro</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-</p>
<p><strong>Cientistas criticam proposta de &#8220;2012&#8243; e indicam cenários de fim do mundo </strong></p>
<p><strong>DENNIS OVERBYE</strong></p>
<p>do <strong>New York Times</strong></p>
<p>A Nasa (agência espacial norte-americana) criticou a Sony em outubro por sugerir, em sua campanha publicitária para o filme &#8220;2012&#8243;, que o mundo acabaria em 2012.</p>
<p>No ano passado, o Cern (Centro Europeu de Pesquisas Nucleares), também assegurou que o mundo não acabaria tão cedo &#8211;portanto, acho que tudo isso é uma boa notícia para quem fica nervoso facilmente. Com que frequência vemos duas instituições científicas top de linha como essas nos garantindo que está tudo bem?</p>
<p>Por outro lado, é meio triste, se você estava ansioso por tirar umas férias das prestações do imóvel para financiar uma última festança.</p>
<p>As declarações do Cern tiveram a intenção de aliviar temores de que um buraco negro sairia de seu novo Grande Colisor de Hádrons (LHC) e engoliria a Terra.</p>
<p>O pronunciamento da Nasa, na forma de vários posts em sites e um vídeo postado no YouTube, foi uma resposta a temores de que o mundo fosse acabar no dia 21 de dezembro de 2012, quando um ciclo de 5.125 anos conhecido como Grande Contagem no calendário maia teoricamente chegaria a um fim.</p>
<p><strong>Filme</strong></p>
<p>O burburinho em torno do fim dos dias atingiu o auge com o lançamento do filme &#8220;2012&#8243;, dirigido por Roland Emmerich, que já trouxe desgraças fictícias para a Terra anteriormente, com alienígenas e geleiras, em &#8220;Independence Day&#8221; e &#8220;O Dia Depois de Amanhã&#8221;.</p>
<p>No filme, o alinhamento entre o Sol e o centro da galáxia, no dia 21 de dezembro de 2012, faz com que o astro fique ensandecido e lance na superfície da Terra inúmeras partículas subatômicas ambíguas conhecidas como neutrinos.</p>
<p>De alguma forma, os neutrinos se transformam em outras partículas e aquecem o centro da Terra. A crosta terrestre perde suas amarras e começa a se enfraquecer e deslizar por aí.</p>
<p>Los Angeles cai no oceano; Yellowstone explode, causando uma chuva de cinzas no continente. Ondas gigantes varrem o Himalaia, onde governos do planeta tinham construído em segredo uma frota de arcas, nas quais 400 mil pessoas selecionadas poderiam se abrigar das águas.</p>
<p>Porém, essa é apenas uma versão do apocalipse. Em outras variações, um planeta chamado Nibiru colide com o nosso ou o campo magnético da Terra enlouquece.</p>
<p>Existem centenas de livros dedicados a 2012, e milhões de sites, dependendo de que combinação de &#8220;2012&#8243; e &#8220;fim do mundo&#8221; você digite no Google.</p>
<p><strong>&#8220;Tolices&#8221;</strong></p>
<p>Segundo astrônomos, tudo isso é besteira.</p>
<p>&#8220;Grande parte do que se alega que irá ocorrer em 2012 está baseada em desejos, grandes tolices pseudocientíficas, ignorância de astronomia e um alto nível de paranoia&#8221;, afirmou Ed Krupp, diretor do Griffith Observatory, em Los Angeles, e especialista em astronomia antiga, em um artigo publicado na edição de novembro da revista &#8220;Sky &#38; Telescope&#8221;.</p>
<p>Pessoalmente, adoro histórias sobre o fim do mundo desde que comecei a consumir ficção científica, quando era uma criança sem afeto. Fazer o público se borrar nas calças é o grande lance, desde que Orson Welles transmitiu a &#8220;Guerra dos Mundos&#8221;, uma notícia falsa sobre uma invasão de marcianos em Nova Jersey, em 1938.</p>
<p>No entanto, essa tendência tem ido longe demais, disse David Morrison, astrônomo do Ames Research Center da NASA, em Moffett Field, Califórnia. Ele é autor do vídeo no YouTube refutando a catástrofe e um dos principais pontos de contato da agência sobre a questão das profecias maias prevendo o fim dos dias.</p>
<p>&#8220;Fico com raiva de ver como as pessoas estão sendo manipuladas e aterrorizadas para alguém ganhar dinheiro&#8221;, disse Morrison. &#8220;Não há direito ético que permita assustar crianças para ganhar dinheiro&#8221;.</p>
<p><strong>Desesperados</strong></p>
<p>Morrison afirmou receber cerca de 20 cartas e mensagens de e-mail por dia de pessoas até da Índia, assustadas até o último fio de cabelo. Em uma mensagem de e-mail, ele anexou exemplos que incluíam uma mulher perguntando se deveria se suicidar, matar sua filha e seu bebê ainda no útero. Outra mensagem veio de uma pessoa questionando se deveria sacrificar seu cachorro, a fim de evitar o sofrimento de 2012.</p>
<p>Tudo isso me fez lembrar os tipos de cartas que recebi no ano passado sobre o suposto buraco negro do Cern. Isso também era mais ficção científica do que fato científico, mas aparentemente não há nada melhor que a morte para nos aproximar de domínios abstratos como física e astronomia. Nessas situações, quando a Terra ou o Universo não estão nem aí para você e seus entes queridos, o cósmico realmente se torna algo pessoal.</p>
<p>Morrison disse não culpar o filme por todo o burburinho, não tanto quanto os vários outros divulgadores das previsões maias e a aparente incapacidade de algumas pessoas (e isso se reflete em vários aspectos da nossa vida nacional) de distinguir a realidade da ficção. Porém, ele disse, &#8220;meu doutorado foi em astronomia, não em psicologia&#8221;.</p>
<p>Em mensagens de e-mail, Krupp disse: &#8220;Sempre estamos incertos em relação ao futuro, e sempre consumimos representações dele. Somos seduzidos pelo romantismo do passado longínquo e pela escala exótica do cosmo. Quando tudo isso se junta, ficamos hipnotizados&#8221;.</p>
<p>O porta-voz da Nasa, Dwayne Brown, afirmou que a agência não faz comentários sobre filmes, deixando essa tarefa para os críticos de cinema. No entanto, quando se trata de ciência, disse Brown, &#8220;achamos que seria prudente oferecer um recurso&#8221;.</p>
<p><strong>Aquecimento global</strong></p>
<p>Se você quer ter algo para se preocupar, afirma a maioria dos cientistas, deve refletir sobre as mudanças climáticas globais, asteróides ou guerra nuclear. Porém, se a especulação sobre as antigas profecias mexem com você, aqui estão algumas coisas, segundo Morrison e outros, que você deve saber.</p>
<p>Para começar, os astrônomos concordam que não há nada especial em relação ao alinhamento do Sol e do centro galáctico. Isso ocorre todo mês de dezembro, sem nenhuma consequência física além do consumo exagerado de panetones. De qualquer forma, o Sol e o centro galáctico não vão exatamente coincidir, nem mesmo em 2012.</p>
<p>Se houvesse outro planeta lá fora vindo em nossa direção, todo mundo já teria percebido. Quanto às violentas tempestades solares, o próximo auge do ciclo das manchas solares só ocorrerá em 2013, e será no nível mais suave, afirmam astrônomos.</p>
<p>O apocalipse geológico é uma aposta melhor. Já houve grandes terremotos na Califórnia, e provavelmente haverá outros. Esses tremores poderiam destruir Los Angeles, como mostrou o filme, e Yellowstone poderia entrar em erupção novamente com uma força cataclísmica, mais cedo ou mais tarde.</p>
<p>Nós e nossas obras somos, de fato, apenas passageiros frágeis e temporários na Terra. Porém, neste caso, &#8220;mais cedo ou mais tarde&#8221; significa centenas de milhões de anos &#8211;e haveria bastante aviso quando chegasse a hora.</p>
<p>Os maias, que eram astrônomos e cronometristas bons o suficiente para prever a posição de Vênus 500 anos no futuro, merecem coisa melhor.</p>
<p>O tempo maia era cíclico; especialistas como Krupp e Anthony Aveni, astrônomo e antropólogo da Colgate University, afirmam não haver evidências de que os maias achassem que algo especial ocorreria quando o marcador da Grande Contagem atingisse 2012. Existem referências em inscrições maias a datas antes e depois da atual Grande Contagem, afirmam os especialistas.</p>
<p>Sendo assim, continue pagando suas prestações normalmente.</p>
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<title><![CDATA[Cern's Large Hadron Collider Closer to Recreating "Big Bang" Theory]]></title>
<link>http://iamnotarapperispit.wordpress.com/2009/11/24/cerns-large-hadron-collider-closer-to-recreating-big-bang-theory/</link>
<pubDate>Tue, 24 Nov 2009 16:12:18 +0000</pubDate>
<dc:creator>iSpit</dc:creator>
<guid>http://iamnotarapperispit.wordpress.com/2009/11/24/cerns-large-hadron-collider-closer-to-recreating-big-bang-theory/</guid>
<description><![CDATA[Engineers operating the Large Hadron Collider (LHC) have smashed together proton beams in the machin]]></description>
<content:encoded><![CDATA[<div class='snap_preview'><p><img src="http://newsimg.bbc.co.uk/media/images/46772000/jpg/_46772619_0910152_02-a4-at-144-dpi-1.jpg" border="0" alt="LHC tunnel (Cern/M.Brice)" hspace="0" vspace="0" width="313" height="235" /></p>
<p class="first"><strong>Engineers operating the Large Hadron Collider (LHC) have smashed together proton beams in the machine for the very first time.</strong></p>
<p>The step was described as a &#8220;great achievement&#8221; for those working on the huge physics experiment.</p>
<p>The low-energy collisions came after researchers circulated two beams simultaneously in the LHC&#8217;s 27km-long tunnel earlier on Monday.</p>
<p>The LHC is smashing together beams of protons to shed light on the cosmos.</p>
<p><!-- E SF -->Operated by the European Organization for Nuclear Research (Cern), the LHC is the world&#8217;s largest machine and will create similar conditions to those present moments after the Big Bang.<br />
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<p>Scientists will search for signs of the Higgs boson, a sub-atomic particle that is crucial to our current understanding of physics.</p>
<p>Although it is predicted to exist, scientists have not yet detected it.</p>
<p>Researchers working on the collider have said they are delighted with the quick progress made since the machine restarted on Friday.</p>
<p>&#8220;It&#8217;s a great achievement to have come this far in so short a time,&#8221; said Cern&#8217;s director-general Rolf Heuer.</p>
<p>&#8220;But we need to keep a sense of perspective &#8211; there&#8217;s still much to do before we can start the LHC physics programme.&#8221;</p>
<p><strong>Smashing news</strong></p>
<p>Housed in a tunnel 100m beneath the Franco-Swiss border, the LHC uses some 1,200 &#8220;superconducting&#8221; magnets to bend proton beams in opposite directions around the tunnel at close to the speed of light.</p>
<p>At allotted points around the &#8220;ring&#8221;, the proton beams cross, smashing into one another with enormous energy.</p>
<p>Large &#8220;detector&#8221; machines located at these crossing points will scour the wreckage of the collisions for discoveries that could roll back the frontiers of knowledge.</p>
<p><!-- S IIMA --></p>
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<div><img src="http://newsimg.bbc.co.uk/media/images/44999000/jpg/_44999391_atlas_cerncmarcelloni_226.jpg" border="0" alt="Atlas (Cern/C. Marcelloni)" hspace="0" vspace="0" width="226" height="170" /></p>
<div class="cap">The giant Atlas detector was the first to see collisions</div>
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<p><!-- E IIMA -->The four main detectors at the LHC are: Atlas, the Compact Muon Solenoid (CMS), Alice and LHCb. Atlas and CMS are so-called multi-purpose detectors, while Alice and LHCb are designed with more specific scientific investigations in mind.</p>
<p>Cern&#8217;s director of communications, Dr James Gillies, said the first collisions had taken place just as a news conference was under way on Monday to discuss progress following the machine&#8217;s restart at the weekend.</p>
<p>&#8220;We didn&#8217;t have time to analyse them then. We waited until all four of the (detectors) had seen good candidates (for collisions),&#8221; he told BBC News.</p>
<p><strong>Quick progress</strong></p>
<p>The giant Atlas detector was the first to record candidate collisions at 1322 GMT. But CMS failed to see any on the first try. Alice and LHCb saw their first candidate collisions after 1600 GMT.</p>
<p>Operators then went back and adjusted the beam to generate collisions in the Compact Muon Solenoid detector. This time, they were successful, with the first candidates seen at around 1820 GMT.</p>
<p>Fabiola Gianotti, spokesperson for the Atlas scientific team, commented: &#8220;This is great news, the start of a fantastic era of physics and hopefully discoveries after 20 years&#8217; work by the international community.&#8221;</p>
<p>The spokesperson for the Alice experiment, Jurgen Schukraft, said cheers erupted with the first collisions.</p>
<p>&#8220;This is simply tremendous,&#8221; he said.</p>
<p>Engineers restarted the LHC on Friday evening after a 14-month hiatus while the machine was being repaired.</p>
<p>It had to be shut down shortly after its inauguration when an electrical fault led to magnets being damaged and to one tonne of liquid helium leaking into the tunnel.</p>
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