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Watch as Erik Weihenmayer, the first blind person to climb Everest and the Seven Summits, experiments with the Brainport Vision Device, a revolutionary new technology enabling a blind person to see with his tongue. Mounted on Erik's head is a small video camera which translates visual information to a credit card-size tongue display. Four-hundred tiny pixels present electrical patterns on his tongue, which Erik's brain then interprets as a visual picture in three-dimensional space. He uses the device to read words and numbers on note cards, to play tic-tac-toe and stone-paper-scissors with his daughter, and to rock climb. To learn more about Erik, go to .
