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COMMENTS: Giant Strides
NBC's weeklong What Works series scored a hit as Robert Bazell visited a laboratory at Massachusetts Institute of Technology where they are designing cutting edge prostheses for amputees. Traditional artificial legs create an unnatural posture, impairing balance and using more energy to walk, researcher Hugh Herr explained. How does he know that? Dr Herr lost both of his legs in a mountaineering accident as a teenager. Herr showed off his new foot with implanted microprocessors and silent electrical motors: "Walking immediately became easier."
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