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The Mpemba effect is the name given to the observation that a liquid (typically water) that is initially hot can freeze faster than the same liquid which begins cold, under otherwise similar conditions. There is disagreement about its theoretical basis and the parameters required to produce the effect.
Erasto Bartholomeo Mpemba [1] (1950–2023) [note 1] was a Tanzanian game warden who, as a schoolboy, discovered the eponymously named Mpemba effect, a paradoxical phenomenon in which hot water freezes faster than cold water under certain conditions; this effect had been observed previously by Aristotle, Francis Bacon, and René Descartes.
The page has been protected for a week to enable us to come to an agreed conclusion. There are two current disputes that are linked. They concern the 'Scalar functionality' (2) and 'Recent view of the Mpemba effect' paragraphs. The more important is the 'Scalar functionality' where the key reference is Jeng.
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A CBS News investigation found dozens of law enforcement leaders — sheriffs, captains, lieutenants, chiefs of police — buying and illegally selling firearms, even weapons of war, across 23 U.S ...
GENEVA (Reuters) - The head of the World Health Organization said on social media platform X on Thursday he had been discharged from a hospital in Rio de Janeiro after being admitted overnight.
Eberhard effect (science of photography) Edge effect (ecological succession) (ecology) Edison effect (atomic physics) (electricity) (Thomas Edison) (vacuum tubes) Efimov effect (physics) Einstein effect (disambiguation), several different effects in physics; Einstein–de Haas effect (science) Electro-optic effect (nonlinear optics)
The Mpemba Effect relates to hot water freezing faster than cold water in certain circumstances, none of which is identified as having been thrown up in the air. Also, while the Mpemba Effect is not well understood, the trick of throwing hot water into very cold air so that it quickly vaporizes and then condenses into small droplets and freezes ...