We've all marveled at the resiliency of Def Leppard's Rick Allen.  Losing an arm is a huge obstacle for anyone to overcome, especially if you're a drummer.  Thanks to new medical advances, amputees can now rock out with a bionic arm.

The robotic arm is the brainchild of Georgia Tech University professor Gil Weinberg.  When a local drummer had lost his arm in accident, Weinberg set out to build a new prosthesis designed specifically to bash the skins.

Not does the robotic arm enable amputees to pursue their rock 'n' roll dreams, but it plays better than an actual human arm.   The device "offers direct control of one drumstick using bicep muscles; a second, automated drumstick monitors timing and plays in sync at a customizable pace, creating a sound that ordinary humans can't match."