Used by some blind people to navigate the world, human echolocation is a technique for establishing the locations and shapes of nearby objects by making sounds and interpreting the echoes that result. Sound-producing methods include tapping a cane, stamping, or making clicking noises with one’s mouth. This sort of echolocation can provide blind practitioners with enough information to identify large objects by ear alone. What are some feats that blind people have accomplished using echolocation?
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