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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 '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.
In this role, she studied the effect exercise had on children with ADHD and designed a highly structured, research-based fitness program called Children and Teachers (CATs) on the Move. [16] Hoza also collaborated with researchers from Michigan State University to research whether exercise before the school day could reduce the symptoms of ADHD ...
Zillow's top 10 hottest housing markets of 2025. The primary reasons Buffalo was number one again, according to Zillow? Job and wage growth, relative affordability and demand that outweighs supply.
A 14-year-old boy was stabbed to death in a broad-daylight Friday morning attack outside a Bronx public housing complex, authorities said.
Morgan Ortagus, a Donald Trump critic turned supporter, will serve as his deputy special envoy for Middle East peace.
Health effect (health) (health effectors) (pollution) Holtzman effect (Dune technology) (physics in fiction) Horizon effect (artificial intelligence) (game artificial intelligence) Hostile media effect (cognitive biases) (criticism of journalism) (journalism standards) (psychological theories) Hot chocolate effect (acoustics) (physics) (wave ...