Power Walking

Okay, get excited ped-ophiles - 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, similar to the way that some hybrid-electric cars produce electricity from braking. With the device, a minute of walking can power a cell phone for 10 minutes. Other potential uses include powering a portable GPS locator, a motorized prosthetic joint or implanted drug pumps.

The generator weighs about 3.5 pounds so users do burn energy carrying it on their knee, and with one generator on each knee, people walking on a treadmill were able to generate about 5 watts of power.

There are no plans yet to produce the generator as researchers are tying to make the device small and less bulky, meaning the annoying fat girls at my gym will have to wait for extra juice to talk on their cell phones wheas they half-ass their workout.