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:
Brain Plasticity and Transcendental Meditation with Dr. Fred Travis
What happens to the brain when someone practices the Transcendental Meditation® technique? All experiences changes the brain and nothing changes the brain like transcending.
Ai Weiwei: 'Life is never guaranteed to be safe'
Ai Weiwei, the Chinese artist who will soon take over Tate Modern's Turbine Hall, on why he wants to tell people that it's OK to speak out.
The Psychology of Your Future Self - Video by Dan Gilbert
Dan Gilbert shares recent research on a phenomenon he calls the 'end of history illusion,' where we somehow imagine that the person we are right now is the person we'll be for the rest of time.
KABBALAH - What is Kabbalah? Universal Kabbalah Series (Part 2)
Universal Kabbalah is a study of philosophical thought that helps us organize and heal our mind. How has Kabbalah contributed throughout history? What can it do for us? Why study it now?
Alexander Tsiaras: Conception to Birth - Visualized
Image-maker Alexander Tsiaras shares a powerful medical visualization, showing human development from conception to birth and beyond. (Some graphic images.)