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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: Hot Water may Freeze Faster than Cold Water". An analysis of the Mpemba effect London South Bank University "The Mpemba Effect". Archived from the original on 9 October 2011. – History and analysis of the Mpemba effect "The story of the Mpemba effect told by the protagonists". YouTube. 10 January 2013.
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.
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 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.
The Kongo cosmogram (also called yowa or dikenga cross, Kikongo: dikenga dia Kongo or tendwa kia nza-n' Kongo) is a core symbol in Bakongo religion that depicts the physical world (Ku Nseke), the spiritual world (Ku Mpémba), the Kalûnga line that runs between the two worlds, the sacred river that forms a circle through the two worlds, the four moments of the sun, and the four elements.
Catapult effect (electromagnetism) Catch-up effect (economics effects) Catfish effect (human resource management) (management) (organizational studies and human resource management) (social psychology) Cause and effect; Ceiling effect (medical treatment) (statistics) Channel capture effect (ethernet) (network topology) Cheerio effect (fluid ...
The Kalûnga line separates these two worlds, and all living things exists on one side or another. [7] After creation, the line became a river, carrying people between the worlds at birth and death, and mbûngi became the rotating sun. At death, or the setting of the sun, the process repeats and a person is reborn.