Last year we told you about Derby, a dog born with underdeveloped legs and paws. Tech firm 3D Systems designed a pair of prosthetic limbs for the Husky mix, but they were too short, and they also prevented Derby from being able to sit normally. A new upgrade now overcomes both of these limitations.
Meet Les Baugh, a double amputee from Colorado who lost both his arms in an electrical accident nearly 40 years ago. He's now entered into the history books by becoming the first person to ever receive two shoulder-level prosthetic arms that he can control with his mind.
Carbon nanotubes can conduct sensations through artificial skin back to the brain, making prosthetic limbs feel like the real thing. A nanotube like this one, delicately balanced on top of gold filaments, is threaded through a rubbery polymer. This nanotube-infused polymer generates electricity in response to pressure…