'Metal Muscles' Flex a New Bionic Hand

July 29, 2015 04:19 PM
Embed
This program will begin at
This program has ended and is being processed for playback.

Artificial limbs, including the most complex of them - the human hand - are getting more life-like and useful due to constant advances in tiny hydraulic, pneumatic and electric motors called actuators. But now, as VOA's George Putic reports, scientists in Germany say the future of the prosthetic hand may lie not in motors but in wires that can ‘remember' their shape.