Daniel Kish has been blind since he was 13 months old, but has learned to “see” using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment and return to him, helping him to construct an understanding of the space around him. In a rousing talk, Kish demonstrates how this works and asks us to let go of our fear of the “dark unknown.”
http://www.ted.com/talks/daniel_kish_how_i_use_sonar_to_navigate_the_world#
For more of Ted Talks, visit: http://www.ted.com/
Perceptual navigation specialist
Daniel Kish expands the perceptual toolbox of both blind and sighted humans by teaching echolocation — the ability to observe our surroundings via sound. Full bio
http://www.ted.com/talks/daniel_kish_how_i_use_sonar_to_navigate_the_world#
For more of Ted Talks, visit: http://www.ted.com/
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