Next time you go out dancing, charge your phone at the same time.  Orange, a UK cell phone service provider, has developed a prototype that charges an internal battery as you dance around.  The movement causes a series of magnets to move and then stores the charge.  Once you’re ready, plug your phone into the battery and watch it charge.  There are currently only a handful of prototypes but if you’re going to Glastonbury this year, you might be able to try one out.

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