You remember Dean Kamen and his advanced prosthetic arm codenamed Luke, don’t you?  After shopping it around on The Colbert Report, Kamen brought his impressive prosthetic to the grocery store, and this time it was attached to Jerry, a Vietnam veteran who lost his arm in battle.  Look at the level of sophistication and precise movements this artificial limb can perform.  It really is quite extraordinary and I’m excited to see where this moves beyond the testing stages.

[Via BoingBoing]