Robots have gotten very good at moving fast, repeating steps and doing jobs that would wear you and me out. But ask a robot to pick up something delicate, oddly shaped or slightly different from the ...

Bionic arms are beginning to tap into nerve signals that linger long after a limb is gone, turning the ghost of movement into real, controllable action. Instead of relying on crude muscle twitches or ...

At age 16, Alexander “Avi” Davidson fell 35 feet from the top of a telephone pole, an accident that left him paralyzed from the waist down and led to the amputation of his left arm below the elbow.