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Place these generators side by side to multiply the amount of power being harvested. A patch of material one square centimeter in area can produce up to 30 microwatts.
#Body heat 2010 movie skin
The same idea is also used in cooling some computers.Ī thermoelectric device placed on skin will generate power as long as the ambient air is at a lower temperature than the body. If you own a USB-powered drink chiller, you probably own a thermoelectric generator-only working in reverse. 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.
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It is usually a thin conductive material that exploits the temperature difference between its two sides to generate electricity, known as the Seebeck effect. The basic technology behind the concept of turning body heat into electricity is a thermoelectric device. Recent developments in nanotechnology engineering promise to usher in lots more body-powered devices. If you own a Seiko Thermic, you never have to worry about changing batteries as long as your environment is cooler than your body. It debuted in 1998 to rave reviews, but Seiko produced only 500 units before discontinuing it. Some people fondly remember Seiko's Thermic watch, which runs continuously off body heat on 1 microwatt (one-millionth of a watt). Current technology for converting body heat into electricity is capable of producing only a few milliwatts (one thousandth of a Watt), which is enough for small things such as heart rate monitors and watches.