For the first time ever, scientists have found one of the reasons our brain needs sleep to survive.
In this demonstration from 1983, professor Eric Laithwaite shows how a relatively heavy wheel will become virtually weightless if it's rotat
Even the brightest minds in science still aren't sure why we do these normal human behaviors.
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There's a subreddit devoted to GIFs of chemical reactions . They are hypnotizing.
It's our chemical all-star team of death. We've got historic poisons that have claimed the lives of millions in a sinister manner, along with a couple of chemicals that might be in your home.
We all crave it, but can you stand the silence? The longest anyone can bear Earth's quietest place is 45 minutes Orfield Laboratories' 'anechoic...
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Shoot first, focus later. That's the promise of Lytro's new point-and-shoot camera.
Find out more about your personality by taking our psychology tests. Designed by experts, play the games to help you better understand who you are.
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Let's say that it were possible to bore a tunnel from one side of Earth, through the center and out the other side. If you were to jump into the tunnel on one side of the planet, what would happen?
TED Talks Hacker and writer Joshua Klein is fascinated by crows. (Notice the gleam of intelligence in their little black eyes?) After a long amateur study of corvid behavior, he's come up with an elegant machine that may form a new bond between anima...
TED Talks Christopher McDougall explores the mysteries of the human desire to run. How did running help early humans survive -- and what urges from our ancient ancestors spur us on today? McDougall tells the story of the marathoner with a heart of go...