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conductive carbon
Researchers modified a hand-crank flashlight by installing a small supercapacitor (in the center) in a conventional button battery case. The light continued to glow long after the cranking stopped, th
MIT Researchers Develop a New Kind of ‘Supercapacitor’ Made without Carbon

ByArhur Dominic Villasanta | Oct 12, 2016 02:55 AM EDT

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