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Bionic leg restores natural walking speeds and steps: ‘I didn’t feel like my leg had been amputated’...
CNN.com· 7 days agoAmy Pietrafitta has learned to walk seven times. First was as a child and then after an industrial...
The Rubik’s Cube Turns 50
The New York Times via Yahoo Canada News· 7 days agoBright and early on the first Saturday in January, Tomas Rokicki and a few hundred fellow enthusiasts gathered in a vast lecture hall at the Moscone...