 | 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... | From: TED Views: 301   186 ratings |
| Time: 13:08 | More in Science & Technology |
from Uploads by TED http://www.youtube.com/watch?v=uH0aihGWB8U&feature=youtube_gdata
