Sullivans bionic arm represents an advance over typical artificial arms, like the right-arm prosthesis he uses, which has a hook and operates with sequential motions. There is no perceivable delay in the motions of Sullivans flesh-colored, plastic-like left arm. Until now, it has been nearly impossible to recreate the subtle and complex motion of a human arm.It is not as smooth as a normal arm but it works much smoother than a normal prosthesis, Kuiken said.
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Wow. Is this exciting or what?