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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 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.
Mozart effect (education psychology) (popular psychology) (psychological theories) (Wolfgang Amadeus Mozart) Mpemba effect (phase changes) (physical paradoxes) (thermodynamics) Mullins effect (rubber properties) Multiple-effect humidification (drinking water) (water supply) (water treatment) Munroe effect (explosive weapons) (explosives)
The 'recent view of the Mpemba effect' was put in as balance as recent papers still remain undecided over the reason for the Mpemba effect, at least there is no consensus in the recent scientific literature; the reasons still being given are in the 'Causes' section of the article.
Emotional and behavioral disorders (EBD; also known as behavioral and emotional disorders) [1] [2] refer to a disability classification used in educational settings that allows educational institutions to provide special education and related services to students who have displayed poor social and/or academic progress.
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 ...
Mpemba is an African name that may refer to Mpemba, a 13th century confederation in the Congo Basin; Mpemba Kasi, a 14th century Bantu kingdom and northernmost territory of Mpemba, which was incorporated into the founding of the Kingdom of Kongo; Erasto B. Mpemba (born 1950), Tanzanian game warden who discovered the Mpemba effect in water
In the U.S. CAM is used by an estimated 20–40% of healthy children, 30–70% of children with special health care needs, and 52–95% of children with autism, and a 2009 survey of U.S. primary care physicians found that more of them recommended than discouraged multivitamins, essential fatty acids, melatonin, and probiotics as CAM treatments ...