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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Mary Roach: 10 Things You Didn't Know About Orgasm
Author Mary Roach delves into obscure scientific research, some of it centuries old, to make 10 surprising claims about sexual climax, ranging from the bizarre to the hilarious.
The Remarkable Story of Ernestine Shepherd
Do healthy, ripped bodies only belong to the young? Not if you're Ernestine Shepherd. At 77, she's the world's oldest female bodybuilder and in our original documentary short, we follow a day in her life.
Hopi Prophecies, History and Symbols - Lawrence Namoki
Lawrence Namoki could be the finest contemporary Hopi potter of his time. His signature pottery almost seems to be made of wood rather than hand dug clay. His pottery is both carved and painted with the highest detail.
Carl Honore: In Praise of Slowness
MIT professor Neil Gershenfeld talks about his Fab Lab -- a low-cost lab that lets people build things they need using digital and analog tools. It's a simple idea with powerful results.
Noel Bairey Merz: The Single Biggest Health Threat Women Face
urprising, but true: More women now die of heart disease than men, yet cardiovascular research has long focused on men. Pioneering doctor C. Noel Bairey Merz shares what we know and don't know about women's heart health -- including the remarkably different symptoms women present during a heart attack (and why they're often missed).