TED Radio Hour for Friday, November 8, 2013

What's It Take To Become A Polar Explorer?

In 2004, Ben Saunders became the youngest person ever to ski solo to the North Pole. Now, he'll set out on another record-breaking expedition, this time to be the first to walk from the coast of Antarctica to the South Pole and back again.

Are Earth's Deepest Caves The Last Frontier?

Engineer and daredevil caver Bill Stone pushes the frontier — through flooded tunnels, the remotest depths of the Earth and the limits of human endurance.

Why Row Across The Oceans?

Roz Savage quit her high-powered London job to become an ocean rower. She's crossed the Atlantic, Pacific and Indian oceans — solo.

Why Is The High Wire Impossible To Resist?

High-wire artist Philippe Petit tells the amazing story of his tightrope walk between the Twin Towers in 1974.
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