Shorts: Daniel Kish's echolocation in action

"They call me the real life batman. My claim to fame is that I click," explains Daniel Kish. His organization, World Access for the Blind, trains the visually impaired to achieve greater freedom through echolocation, a technique that simulates a bat's night vision of perceiving the environment through sound. In this video shot during PopTech 2011, he hops on a bicycle to show us echolocation in action.