Kamen's Robot Arm

Dean Kamen is so amazing. He's a modern Thomas Edison, I think. His inventions seem to have such practical human welfare value. Not that pure science isn't full of welfare - Kamen stands on the shoulders of pure scientists whose theoretical work, they may have thought, didn't obviously have any practical value. Kamen's latest is a robotic arm for amputees that has incredible dexterity and is light-weight, and in this clip, explains all that it can do, plus shows it in action. It's very encouraging and exciting. (ht to jk again).