PETER MENZEL / SCIENCE PHOTO LIBRARY PETER MENZEL / SCIENCE PHOTO LIBRARY
Robotic knee. Time-exposure image of researcher Hugh Herr testing a robotic prosthetic knee. The knee reproduces the force response movements of a human knee more accurately than standard prostheses, enabling its wearer to walk more naturally even over difficult terrain. Herr, a double amputee, is one of the knee's developers. He works at MIT's (Massachusetts Institute of Technology) Leg Lab, USA.
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