let's get geeky - Twirling battery concept promises a quick power fix

Check out: "Twirling battery concept promises a quick power fix" - www.engadget.com
http: //www.engadget.com/2010/01/10/twirling-battery-concept-promises-a-quick-power-fix/?icid=engadget-iphone-url
We've seen plenty spinning, twirling, and wind-up gadgets from Sony
and others, but nothing quite like this battery concept designed by
Song Teaho and Hyejin Lee. While there's still a bit of work to be
done with the actual "working" part, the concept is to simply let you
twirl your cellphone battery around your finger a few times for a
quick bit of juice to send a text or make a call -- the designers
estimate 130 twirls will give you two minutes of talking time. Of
course, the same idea could also be applied to batteries for other
devices, although you'd probably have your work cut out for you trying
to charge your laptop battery.