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June 8th, 2010
Turning Body Heat Into Electricity
Abstract:
Recent developments in nanotechnology engineering promise to usher in lots more body-powered devices. The basic technology behind the concept of turning body heat into electricity is a thermoelectric device. It is usually a thin conductive material that exploits the temperature difference between its two sides to generate electricity, known as the Seebeck effect. Such devices can work in reverse, meaning if you were to apply electricity to the device, one side would get extremely cold and the other extremely hot. If you own a USB-powered drink chiller, you probably own a thermoelectric generator--only working in reverse. The same idea is also used in cooling some computers.
Source:
forbes.com
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