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Human Echolocation

The sonar was invented by Lewis Nixon in 1906. Invented to detect icebergs.

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Much like bats and dolphins, some people have developed the ability to analyze bouncing sound waves to generate a picture of their environment. Advanced echolocators have shown increased mental activity in parts of the brain usually devoted for vision. | How Human Echolocation Allows People to See Without Using Their Eyes

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from BBC News

Human echolocation: Using tongue-clicks to navigate the world

Daniel Kish has been blind since he was a baby but that hasn't stopped him living an incredibly active life that includes hiking and mountain-biking. To do this, he has perfected a form of human echolocation, using reflected sound waves to build a mental picture of his surroundings.

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A blind man uses echolocation to "see" the same way a bat does. Get More at http://dsc.discovery.com/videos/is-it-possible/#mkcpgn=ytdsc1

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Daniel Kish - an American expert in human echolocation and President of World Access for the Blind, a California-registered non-profit founded in 2000 to facilitate "the self-directed achievement of people with all forms of blindness" and increase public awareness about their strengths and capabilities.[2] Kish and his organization have taught a form of echolocation to at least 500 blind children around the world.[3] Kish, who has been blind since he lost both eyes to retinoblastoma before…

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A Blind Woman Gains New Freedom, Click By Click By Click : Shots - Health News : NPR

Dolphins may use ultrasound to detect a baby inside a pregnant woman.

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from BBC News

Human echolocation: Using tongue-clicks to navigate the world

Human echolocation for the blind

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