NASA launches $ 55-million project to create a thought - controlled bionic arm . The next steps are to shrink the battery , develop more-efficient motors , and refine the bulky electrodes used to read electrical signals in muscles . The arm will duplicate the functions of a natural arm . Proto 2 thought - controlled mechanical arm can perform 25 joint motions . A person with a Proto 2 can conceivably play the piano .
NASA launches $ 55-million project to create a thought - controlled bionic arm . The arm will duplicate the functions of a natural arm . Proto 2 thought - controlled mechanical arm can perform 25 joint motions . A person with a Proto 2 can conceivably play the piano .