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" Click here to post this video on your blog or website. Click here to post a photo of this winner on your blog or website. &amp;quot;The human arm is a tall order,&amp;quot; says Stuart Harshbarger of Johns Hopkins University. &amp;quot;It can move at remarkable speeds. It&amp;#039;s silent and it heals itself.&amp;quot; Proto 2, the prosthetic arm being developed by Harshbarger and a team of 30 public and private partners, may not be as good as the real thing, but it&amp;#039;s narrowing the gap. Most myoelectric prosthetic arms move in three ways--they bend at the elbow and rotate at the wrist, and a rudimentary hand clamps shut. The team&amp;#039;s initial Proto 1 device boosted that figure to seven. The Proto 2 allows for 27 different kinds of movement, including individual finger bending. While other myoelectric arms operate in response to muscle movements, the Proto 2 is wired directly to residual nerve fibers: One controls the device merely by thinking. Most remarkably, users can feel with the new arm--80 sensors in the fingertips and palm send signals racing back to the brain. Says Harshbarger, &amp;quot;It&amp;#039;s hard not to get emotional about the progress we&amp;#039;ve made.&amp;quot; "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/science/health/a2153/4224764/>