Today the penny dropped.
(Odd expression… origin – penny candy machines maybe?)
I was thinking about the music frequency, 528 Hz again. That story has really been on my mind and not just because I did a speech about it yesterday. 161 more words
The Vatican library are uploading around 4000, yes four thousand, ancient manuscripts for viewing, for free.
The above link should take you to the article. 79 more words
The United Nations has deemed the coming year to be the “International Year of Light and Light-Based Technologies” in an effort to raise global awareness about the role optical technologies play in the development of society and providing solutions to global challenges in energy, education, agriculture and health. 598 more words