MIT's Vibration-Powered Charger 100x More Powerful Than Competitors

A new energy harvesting device converts low-frequency vibrations into electricity. The device, the size of a U.S. quarter, is shown mounted on a stand. Photo: Arman Hajati via MIT While the concept of gathering energy from small vibrations is not new and has been in use for some time now, the devices aren't particularly efficient. MIT is changing that, however, with a new tiny energy harvester than can turn a wider range of vibrations into energy, making it 100 times more powerful than similarly sized devices. ... Read the full story on TreeHugger

Source: http://www.treehugger.com/files/2011/09/mits-vibration-powered-charger-100x-more-powerful-than-competitors.php?campaign=th_rss_science

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