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Heat flowing from a colder to a warmer body without external intervention

Researchers at the University of Zurich have developed a simple device that allows heat to flow temporarily from a cold to a warm object without external intervention by using a “thermal inductor”.


According to the rules of classical thermodynamics, the flow of heat between two thermally connected objects of different temperatures is determined by Fourier’s law of heat conduction. This law states that the rate of heat flow between these objects increases with growi...

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