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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.
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
Popular examples of the Mandela effect. Here are some Mandela effect examples that have confused me over the years — and many others too. Grab your friends and see which false memories you may ...
Mpemba effect – Natural phenomenon that hot water freezes faster than cold; Oral rehydration therapy – Type of fluid replacement used to prevent and treat dehydration; Osmotic power – Energy available from the difference in the salt concentration between seawater and river water; Oxyhydrogen – Explosive mixture of hydrogen and oxygen gases
This depiction of the Kongo Cosmogram is based on a description by Dr. Fu-Kiau. It depicts the physical world known as Nseke, the spiritual (ancestral) world known as Mpémba, the Kalûnga river that runs between the two worlds, the four moments of the sun, and the mfinda (forest) that spiritually connects both worlds.