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.
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Esther Perel: The Secret to Desire in a Long-Term Relationship
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This is a video interview of Anita Moorjani that recounts her near death experience.Drew Dudley: Leading with Lollipops
This video discusses how we can have a powerful, even life changing impact on others without ever knowing it.Jon Ronson: Strange Answers to the Psychopath Test
Is there a definitive line that divides crazy from sane? With a hair-raising delivery, Jon Ronson, author of The Psychopath Test, illuminates the gray areas between the two.Geoffrey West: The Surprising Math of Cities and Corporations
Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In this mind-bending talk from TEDGlobal he shows how it works and how similar laws hold for organisms and corporations.
