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On discovery they have shown blind people recognizing buildings, trees, dogs, go shopping and even shake hands with similar technology. What they do is wear a special pair of goggles that acts as sonar. the sound output is converted from ultrasound to ordinary sound and sent to the person's ear. A blind sportsman was even shown to follow a person on a race track for excersize purposes. |
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Permit me to be skeptical about shaking hands using sonar. (Unless you're simply detecting which direction the shakee is in, and relying on him/her to grab your hand and pump it wildly.) |
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