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When Yellow is Green

Who knew you could use urine to power a battery? The Pee Battery uses the ions in human urine to keep 1.5 volts streaming for 90 minutes, and its makers say it can be tweaked to last even longer. The basic principle is that a mixture of magnesium and carbon reacts when mixed with a liquid to produce, in the case of the AA battery, up to 500 milliamp-hours of life. Each time the battery is recharged it has a lower power level than the time before and the life cycle allows for about 3 to 5 recharges before disposing of the battery. Each battery can potentially keep its charge for up to 10 years which could be great for many life saving devices in remote locations. Since the battery does not contain mercury and other harmful materials, it can be easily disposed of without worry for the environment. They're even saying that all other bodily fluids work equally well. Sounds like an unpleasant way to get that iPod working again.... For more green ideas, visit www.onethingsacramento.com

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09/17/2010 3:55AM
When Yellow is Green
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