today's trivia

MIT physicist Daniel Kleppner explains how matt...
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Added: January 16, 2008
MIT physicist Daniel Kleppner explains how matter changes as it is reduced in temperature and nears -459.67 degrees F, or absolute zero.

NOVA's "The Race for Absolute Zero" is streaming online at http://www.pbs.org/wgbh/nova/zero/pro...

Catch NOVA every Tuesday night on PBS. Or join us online at pbs.org/nova.

Absolute Zero is a production of Windfall Films Ltd. and Meridian Productions for TPT/Twin Cities Publi

We can't see dark matter, and some skeptics dou...
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Added: December 28, 2007
We can't see dark matter, and some skeptics doubt its existence, but many scientists think it makes up 20-some percent of our universe. Astronomer Doug Clowe explains how the Bullet Cluster, a group of galaxies billions of light years away, may shed some light on this mysterious stuff.

Don't miss NOVAscienceNOW, airing every Wednesday night during the summer of 2008 on PBS.
Watch past episodes of the program, try ou

With the success in motor racing of cars fuelled by bioethanol two students from Coventry University decided to bring the green message to the club level of the sport.

Today sees the launch of ideasforlife.tv, the brand new online video channel that will be showcasing