The Luke Arm is the world’s first real, fully-functional prosthetic arm. The video shows Dean Kamen and the progress his team has made with the prosthesis as they work with the arm in either a remote-controlled or thought-controlled method. The Luke Arm’s silicone-rubber inner-side straps work with the arm and distribute pressure at certain areas of the body during use. Made up of magnesium, titanium and a slew of other metals, the Luke arm weighs a mere 8.9-pounds and is said to be able to crush any man in arm wrestling. I’m serious, check the video out.