Photo: Toby Melville/ Reuters
Swiss social psychologist Bertolt Mayer takes a close look at his man-made doppelgänger in February at the Science Museum, in London. “Rex,” the bionic man modeled after Mayer, has fully functioning mechanical limbs, artificial organs, and fake blood flowing through its body. Mayer has good reason for his strong interest in replicating human organs: He was born without a left hand and has continually searched for prostheses that provide better functionality.







Willie Jones
Willie Jones is an associate editor at IEEE Spectrum. In addition to editing and planning daily coverage, he manages several of Spectrum's newsletters and contributes regularly to the monthly Big Picture section that appears in the print edition.
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