Langevin has tapped into the power of crowdsourcing, and the accessibility of 3D printing. Sharing his designs freely, he has constructed a life-size robot, as well as clear instructions for ...

It looks like Iron Man's arm, but it's actually a fully-functioning bionic prosthetic for a seven-year-old kid. Electronically wired and capable of moving, it can, for instance, open and close its ...