Engineers relied heavily on motion-control technology to develop the first wearable exoskeleton at Cornell University, the Hardiman-1, in 1965. The arms, legs, and feet used electrohydraulic servos, while a hydromechanical servo controlled the hands. The hydraulics operated off of a 3,000-psi pump, letting the person in the suit lift up to 1,500 lb and walk at 1.7 mph. The suit itself, however...
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