Gizmodo 
Sep 10, 2008 10:15 AM
1,892
Humans make walking look easy, but that's only because walking is a very efficient process in which our tendons and muscles work in conjunction to store and release 40% more energy than we exert. Obviously robots want in on this action. Oregon State University researchers have developed a leg that uses motors to drive a fiberglass spring-loaded knee joint. The result is a more efficient robot leg that operates more like a human leg. [NewScientist]
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