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 Soft robots have a "cardiovascular" problem. While their bodies can deform and bend, their hearts, the pumps that keep them moving, have remained bulky and rigid. Researchers at the University of Bristol have created a "soft" miniature pump that weighs about as much as a single dried pumpkin seed, but can generate enough hydraulic pressure to power
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As co-chief executive of the start-up Prometheus, the Amazon founder is using A.I. to improve how devices ranging from computers to jet engines are made.
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