Rocket-powered Mechanical Arm Could Revolutionize Prostheticsby (author unknown), ScienceDaily: Disability News on Aug 20, 2007Combine a mechanical arm with a miniature rocket motor: The result is a prosthetic device that is the closest thing yet to a bionic arm. The prototype can lift (curl) about 20 to 25 pounds -- three to four times more than current commercial arms -- and can do so three to four times faster. The mechanical arm also functions more naturally than previous models.
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