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Temperature vs time plots, showing the Mpemba Effect. 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 ...
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.
It's not that the effect occurs under specific conditions that is the issue. Even the Jearl Walker experiment published in Scientific American, and consistently apearing in the papers talking about the Mpemba effect, points out that his results were for two very specific temperatures.
1 Science Experiment. 11 comments. 2 Science Experiment. ... Toggle the table of contents. Talk: Mpemba effect/Archives/ 2.
The Twilight Zone creator Rod Serling would have turned 100 on Dec. 25, 2024. To commemorate the anniversary, Rod’s daughters, Jodi and Anne, are looking back on some of their most meaningful ...
Tesla investors have good reason to watch the bromance between billionaire CEO Elon Musk and President-elect Donald Trump very closely.If the love continues, it could eventually prove quite ...
The caption on one states "Mpemba effect experiment: the hot water contained in a thermos, if thrown into the air in a very cold environment, freezes instantly before touching the ground." This is not a very helpful caption for two reasons: 1) water cannot freeze "instantly," and 2) where's the evidence that it freezes before it hits the ground?
More than $100 trillion in household wealth is expected to be passed down as part of the Great Wealth Transfer, the largest in U.S. history, according to a new report.