We've seen our fair share of prosthetic arms and computer interfaces operated with little more than the firing of a synapse, but legs? They're a different story: balancing and propelling a sack of (mostly) flesh and bone is a much more complicated task than simply picking up a sandwich. Thankfully, the Rehabilitation Institute of Chicago's Center for Bionic Medicine is now one step closer to thought-controlled lower-limb prosthetics. As pictured
