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2:11
Electric cars may play a critical role in a future "smart grid."
3:40
These completely autonomous ball-kickers are irresistible to watch.
4:13
William Herschel gets the credit, but his sister Caroline was also a pioneer astronomer.
3:21
See how salamanders in California are evolving, just as Darwin might have predicted.
2:37
Senior Executive Producer Paula Apsell describes the decision to make "Judgment Day."
2:33
The New York Times technology columnist describes the best and strangest gadgets he’s...
1:31
If an elevator falls, can you save yourself by jumping up at the last second?
2:42
Hotels are offering an innovative way for observant Jews to use elevators on the Sabbath.
5:09
China is ramping up production of solar technology but coal power remains king.
2:58
Saul Griffith has put himself on a strict regime to reduce their carbon footprint.
1:07
Author and physicist Brian Greene answers questions from Facebook and Twitter.
1:54
Architect and designer Michael Arad takes us on a tour of his 9/11 Memorial mock-up.
