When Amit Goffer from Argo Medical Technologies invented ReWalk, he couldn't use it himself since he couldn't move his arms. A paralyzed ex-Israeli paratrooper named Radi Kaiof, however, fully benefitted from his creation. Kaiof was able to walk again using ReWalk, which is some sort of a robotic exoskeleton for the legs. Since the legs come with a backpack containing a computer and batteries, he goes around emitting a faint hum, although it does seem like a small price to pay for being able to stand up again.

ReWalk is specifically designed for paraplegics and is equipped with motorized leg support and body sensors. A wrist remote control dictates the legs' actions which could be any of the following: "stand," "sit," "walk," "descend," and "climb." Crutches are still needed for balance, but all in all, ReWalk is looking pretty good. The robotic exoskeleton is set to go public on 2010 with an expected price of $20,000.

Read more about ReWalk in NewScientist Tech and Daily Mail UK.