科学美国人60秒:机器人外骨骼-托福听力下载

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　　Sigourney Weaver wore one to take on the Alien. Robert Downey Jr put one on and became Ironman. And in real life, the robotic exoskeleton got an international audience this summer, when a paraplegic man wore a mind-controlled support suit to kick off the World Cup. You could say it was one small kick of the ball, but one giant leap to the day when people otherwise immobilized people could, well, take a giant leap.

　　Robotic exoskeletons have already shown up in the workplace. Last year the Daewoo Shipbuilding and Marine Engineering shipyard in South Korea experimented with suits that let workers walk around carrying 65-pound slabs of metal like they were balsa wood. Now Daewoo wants to tweak the technology so suited-up workers can walk faster and have a greater range of motion.

　　Another place we’ll likely soon see exoskeletons is the battlefield. Raytheon, Lockheed Martin and other defense contractors are developing hydraulic-powered exoskeletons. Augmented military personnel could carry heavy loads and work longer before fatiguing.

　　Not exactly the Singularity that some people believe will someday inextricably combine human and machine. Perhaps this system is better—to become solely human again, all you have to do is remove the robotic exoskeleton.

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