See the world's first mind-controlled prosthetic leg in action

Prosthetic legs have gotten smarter and smarter thanks to advanced sensors and lightweight motors, but this week they're getting their biggest overhaul yet: the latest bionic leg can be controlled entirely by its wearer's mind. Though the mind-controlled prosthetic leg has been in the works for four years now, the research team behind it has only today published the details of its development, which are appearing in a paper in The New England Journal of Medicine. The work comes out the Rehabil...