In this enlightening and funny short TED2012 talk, conservation advocate Joe Smith reveals the trick to efficient bathroom paper towel use.
Reggie Watts' beats defy boxes. Unplug your logic board and watch as he blends poetry and crosses musical genres in this larger-than-life performance.
In this short TED2012 talk, book designer Chip Kidd uses his wicked sense of humor to explain the art and deep thought of his cover designs.
Ellen Dunham-Jones fires the starting shot for the next big sustainable design project: retrofitting suburbia.
Bart Weetjens talks about his extraordinary project to train rats to sniff out land mines.
WikiLeaks founder Julian Assange talks about how the site operates, what it has accomplished -- and what drives him.
Chef Arthur Potts Dawson shares his personal vision for drastically reducing restaurant and supermarket waste.
Ursus Wehrli creates tidier art by deconstructing the paintings of masters into component pieces, sorted by color and size.
Graham Hawkes takes us aboard his graceful, winged submarines to the depths of planet Ocean (aka "Earth").
Pop singer Annie Lennox talks about her SING campaign to combat HIV/AIDS and what inspired her to take action.
Ghanaian economist George Ayittey unleashes his anger toward corrupt leaders in Africa and calls on the "Cheetah generation" to take back the land.
Twenty years ago, Tim Berners-Lee invented the World Wide Web. What's his next project?
From the spin of subatomic particles to a beautiful arabesque, the world turns on symmetry. Oxford mathematician Marcus du Sautoy offers a glimpse.
Physicist Janna Levin says the universe has a soundtrack that records some of the most dramatic events in outer space.
Taryn Simon exhibits her startling take on photography -- to reveal worlds and people we would never see otherwise.
Spoken word poet Sarah Kay tells the story of her metamorphosis and gives two breathtaking performances of "B" and "Hiroshima."
Download the TV Guide app for iPhone, iPad and Android!