We've seen robotic exoskeletons before -- there's Lockheed's HULC that's designed to augment soldier performance, and then there's Raytheon's XOS that's more like an actual Iron Man suit -- but this one is different. REX, the Robotic Exoskeleton, is designed to help those usually bound to wheelchairs stand up and walk, and it should be commercially available later this year.
Even the finest super-soldier suit can end up as expensive deadweight if the batteries run out of juice. Lockheed Martin wants to avoid that fate for its robotic exoskeleton by turning to fuel cells that can power the suit for days, The Register reports.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.