Daniel Kish is an echolocation pioneer, teaching fellow blind people to navigate the world independently. By clicking or tapping and listening to how the sound reflects back, Kish and his students are able to construct a mental map of the world around them. The technique is so effective that they’re able to ride bikes or, as shown with one student in the documentary, learn to skateboard. Check out the full video to see them in action and get a sense of how echolocation works. (Video and image credit: The New Yorker)
“Echo”
