Far-Out Green Gadgets

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<h2>People-powered music player</h2><br>Christian Karlsson of Norway scored an honourable mention in the Greener Gadgets competition with his concept for the <a href="http://www.core77.com/competitions/greenergadgets/projects/4572/" target="_blank">RollOn MP3</a> player, a device that the user powers by rolling the charging wheel (shown above) in between two hands or on a flat surface such as a table. Karlsson says that he was inspired by old-fashioned dynamo-powered lights for bicycles.

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