This is how some blind people are able to echolocate like bats

Some people who are blind use mouth clicks to "see" the world like bats. Now we're beginning to understand how they do it, and other people may be able to learn

from # All Medicine by Alexandros G. Sfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2xCfhgk
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