Energy from an Unlikely Source

Have you ever had the idea that there must be a way to harness the kinetic energy of running (or cycling) to do something more useful, like power your the lights in your house, or charge batteries?

Slate has published an article that looks at the possibility of designing a bra that would convert the kinetic energy of um... well... upper torso motion into enough electrical power to run an iPod.

Victoria's Circuit: Harnessing the Untapped Power of Breast Motion