Physicists have developed an amazingly simple device that allows heat to flow temporarily from a cold to a warm object without an external power supply. Intriguingly, the process initially appears to contradict the fundamental laws of physics.
from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/04/190419165531.htm
from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/04/190419165531.htm
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