When Zac Vawter lost his leg in a motorcycle accident a few years ago, he thought he’d never walk like a normal person again. But today, the 32-year-old software engineer can climb stairs, wiggle his toes and stroll through parks. The only difference is that one of his legs is a mind-controlled robot . Read more…        

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World’s First Fully Bionic, Mind-Controlled Leg Goes for a Walk