LEGO technic builder Sariel presents a mighty impressive weekend project: a motorized LEGO hand that emulates actual human movement. This feat of plastic engineering runs on a combination of electric motors and pneumatic valves. Says Sariel, "The most complex part of the arm is obviously the palm with 4 fingers and a thumb. The thumb can be bent...
Here is the amazing video of the Hand Actually working. This hand was created by this Polish 27 year old genius named Paul Sariel.