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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.
The Physics and Astronomy of Science Fiction: Understanding Interstellar Travel, Teleportation, Time Travel, Alien Life and Other Genre Fixtures. McFarland. pp. 57– 60. ISBN 978-0-7864-7053-2. Bly, Robert W. (2005). "Asteroids Colliding with the Earth". The Science in Science Fiction: 83 SF Predictions That Became Scientific Reality.
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 ...
In 1964 he joined the University of Dar es Salaam as Reader in Physics, becoming Professor in 1966 and Dean of Science in 1968. [ 1 ] After a student in a physics lecture, Erasto Mpemba , asked him why hot water sometimes freezes faster than cold water, Osborne experimented to confirm Mpemba's observation, and together they co-authored a paper ...
The Journal of the Fantastic in the Arts (JFA), published regularly since 1990, is one of the four major academic journals that publish critical works concerning science fiction, featuring no fiction other than as reference. [45] The journal is interdisciplinary, publishing work on the fantastic in literature, art, drama, film, and popular media.
Eberhard effect (science of photography) Edge effect (ecological succession) (ecology) Edison effect (atomic physics) (electricity) (Thomas Edison) (vacuum tubes) Efimov effect (physics) Einstein effect (disambiguation), several different effects in physics; Einstein–de Haas effect (science) Electro-optic effect (nonlinear optics)