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September 21 2012
An international group of scientists has developed a material that can turn wasted heat into electricity with unprecedented efficiency, a discovery that may one day allow for more efficient cars and buildings. The finding was reported this week in the journal Nature.
The material is crucial to creating devices called thermoelectric generators, which are designed to create an electrical charge when a difference in temperature exists across them. When such a difference exists, electrons move from one side to the other and a voltage is created which can be captured and used as electricity.
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