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.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/2N3yZMS
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