28 Jan '16, 3pm

Researchers generate energy with nothing but cardboard, tape, and a pencil

Researchers generate energy with nothing but cardboard, tape, and a pencil

with two cards of paper that are covered with a layer of graphite carbon (pencil lead) on one side, attached with Teflon tape in the shape of an arch. The paper and tape both act as insulators, with the carbon serving as electrodes. When pressure is placed on the device, the two sides connect, creating a positive charge on the paper and negative charge on the Teflon. As the cards separate, an electric charge builds on the carbon layers. University of Tokyo researchers have already improved on the device, using sandpaper on the cards to create a rough surface that boosts output more than six times.

Full article: http://inhabitat.com/researchers-generate-energy-with-not...

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