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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 real Mpemba effect seems to be the complete abandonment of the scientific method by amateurs and scientists alike. Although there seems to be considerable anecdotal evidence for the effect there are no sources giving anything that could remotely be called a scientific description of the claimed effect.
Scammers are using AI-powered voice-cloning tools to prey on people. But experts say there's a simple way to protect you and your family.
Some of these products, they say, contain natural ingredients like maca and ginseng − which, though harmless, won't have much of any impact on your sex life, save for a placebo effect.
The Department of Health, Education and Welfare (HEW) was reorganized into a Department of Education and a Department of Health and Human Services (US DHHS). The Department of Health and Human Services oversees 11 agencies including the Food and Drug Administration (FDA), Centers for Disease Control (CDC), National Institutes of Health (NIH ...
The effect of loneliness on health drove the WHO last week to announce its plans to launch a commission with a diverse set of health leaders to combat social isolation.
Best practices • Don't enable the "use less secure apps" feature. • Don't reply to any SMS request asking for a verification code. • Don't respond to unsolicited emails or requests to send money.