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:
Charlie Todd: The Shared Experience of Absurdity
Charlie Todd causes bizarre, hilarious, and unexpected public scenes: Seventy synchronized dancers in storefront windows, "ghostbusters" running through the New York Public Library, and the annual no-pants subway ride.
Daniel Goldstein: The Battle Between Your Present and Future Self
Every day, we make decisions that have good or bad consequences for our future selves. (Can I skip flossing just this one time?) Daniel Goldstein makes tools that help us imagine ourselves over time, so that we make smart choices for Future Us.
Jok Church: A Circle of Caring
In this 3-minute talk, cartoonist and educator Jok Church tells a moving story of the teacher who cared for him when no one else did -- and how he returned the favor.
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.
Living Goddess - Zeffi Kefala
Zeffi Kefala is a native Greek who has been living in the U.S. for the past twenty-four years. At the age of nine, she was able to read cards for her mother's friends and things would occur that she predicted - but for her at the time it was all in fun. Her life would take many turns before coming back to her gifts.