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Concept

Mpemba effect

The counter-intuitive observation that, under certain conditions, a volume of hot water can freeze faster than an identical volume of cold water. Named for [[Erasto Mpemba|erasto-mpemba]], the effect was documented by thinkers from [[Aristotle|aristotle]] to [[René Descartes|rene-descartes]] but remains a subject of debate among modern physicists. There is no single agreed-upon explanation for it.

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