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Ever since Hugh Herr lost both his legs to a rock-climbing accident, he’s been on a quest to design replacement limbs that feel like the real thing. It’s now possible to engineer light-weight custom ...

This is definitely from the future: a guy, using the power of his mind, literally, to control a bionic leg and climb a skyscraper in Chicago — all 103 floors, if you can believe it. Meet Zac Vawter, ...

(AP) Zac Vawter considers himself a test pilot. After losing his right leg in a motorcycle accident, the 31-year-old software engineer signed up to become a research subject, helping to test a ...