Phil Plait: How to Defend Earth From Asteroids
What's six miles wide and can end civilization in an instant? An asteroid - and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them.
Other Videos That May Interest You:
Einstein the Parrot: Talking and Squawking
This whimsical wrap-up of TED2006 -- presented by Einstein, the African grey parrot, and her trainer, Stephanie White -- simply tickles. Watch for Einstein's moment with Al Gore.
Ron Gutman: The Hidden Power of Smiling
Ron Gutman reviews a raft of studies about smiling, and reveals some surprising results. Did you know your smile can be a predictor of how long you'll live -- and that a simple smile has a measurable effect on your overall well-being? Prepare to flex a few facial muscles as you learn more about this evolutionarily contagious behavior.
No Pants Subway Ride 2011
Over 5,000 people took off their pants on subways in 48 cities in 22 countries around the world. In New York, our 10th Annual No Pants Subway Ride had over 3,500 participants, spread out over six meeting points and ten subway lines.
Jenna McCarthy: What You Don't Know About Marriage
In this funny, casual talk from TEDx, writer Jenna McCarthy shares surprising research on how marriages (especially happy marriages) really work. One tip: Do not try to win an Oscar for best actress.
Stewart Brand: The dawn of de-extinction. Are you ready?
This video is Stewart Brand's Ted lecture on the scientific challenges and moral issues surrounding the resurrection of extinct species.