Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Apr 12, 2016
The blind man leading the blind to see - how echolocation is redefining our understanding of vision. Daniel Kish is blind but his ability to "see using sound" is remarkable. His use of echolocation to effortlessly get around using mouth clicks has earned him the nickname "Batman". Now researchers are getting a clearer picture on the way his brain turns sounds into images and it's redefining our understanding of vision.