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Device harvests energy from low-frequency vibrations

Trending story found on phys.org
Device harvests energy from low-frequency vibrations
A wearable energy-harvesting device could generate energy from the swing of an arm while walking or jogging, according to a team of researchers from Penn State's Materials Research Institute and the University of Utah. The device, about the size of a wristwatch, produces enough power to run a personal health monitoring system.
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