Read here.
"...
Researchers have developed a device that generates electrical power from the swing of a walking person's knee. With each stride the leg accelerates and then decelerates, using energy both for moving and braking.
...
With the device, a minute of walking can power a cell phone for 10 minutes ...
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Friday, February 08, 2008
Walk and recharge your phone...
By at 19:26
Section: Free energy and new technologies
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