Daniel Kish Uses Sound To See

Daniel Kish had both eyes removed at the age of 13 months aft...  ...recognize a building as far away as 1,000 feet.  Kish is president of a nonprofit organization called ...  ...nvironment, using echolocation as a primary tool. Kish hears echos and interprets their meaning to...

http://www.neatorama.com/2011/05/14/daniel-kish-uses-sound-to-see/