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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.
Glass house effect (culture) (surveillance) Glasser effect (physics) Goos–Hänchen effect (optical phenomena) Great Salt Lake effect (natural history of Utah) Green-beard effect (evolution) (evolutionary biology) (game theory) (selection) Greenhouse effect (atmosphere) (atmospheric radiation) (climate change feedbacks and causes) (climate ...
Mpemba was a confederation in the western Congo Basin, at least from the 13th century. Its northernmost territory, Mpemba Kasi, was incorporated into the founding of the Kingdom of Kongo in the 14th century, and it was conquered. It neighboured the confederations of Vungu and Seven Kingdoms of Kongo dia Nlaza.
Numerous eras throughout history have been defined through the use of print culture. The American Revolution was a major historical conflict fought after print culture brought the rise of literacy. Furthermore, print culture's ability to shape and guide society was a critical component before, during, and after the Revolution.
A Texas teen is accused of killing a classmate’s show goat by force-feeding it pesticide. Aubrey Vanlandingham, 17, is charged with cruelty to livestock animals, a felony, according to court ...
SEOUL (Reuters) -Samsung Electronics' preliminary fourth-quarter operating profit missed estimates by a large margin, with the South Korean tech giant hit hard by extra costs as it works towards ...
People looking to save money for a big trip or financial investment may want to make plans around an "extra" paycheck in their pocket.. Employees who get paid on a biweekly basis (every other week ...