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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.
While the less scientific persons are easiliy tricked into believing the story, they are also further tricked by statements like—"...given as a cautionary parable to those who reject theories or experiments solely because they seem counterintuitive, or contradict accepted theories,...etc.,etc,.etc.", and "The Mpemba effect is the somewhat ...
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 ...
2 Science Experiment. 11 comments. 3 Modify the definition. 2 comments. 4 Odd subject. 2 comments. 5 Additions relating to work by W. Zheng et al. ... Talk: Mpemba ...
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 ...
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)
A science project is an educational activity for students involving experiments or construction of models in one of the science disciplines. Students may present their science project at a science fair, so they may also call it a science fair project. Science projects may be classified into four main types.