The Mpemba Effect: The Mpemba effect is a phenomenon where hot water freezes faster than cold water under certain conditions. The effect is named after Erasto Mpemba, a Tanzanian student who observed this unusual behavior in 1963.
His Discovery: while in Magamba Secondary School, he discovered when freezing ice cream that was hot in his cookery classes, he observed it froze before the cold mix.
What Is The Mpemba Effect?: Mpemba states “If you take two similar containers with equal volumes of water, one at 35 °C (95 °F) and the other at 100 °C (212 °F), and put them into a freezer, the one that started at 100 °C (212 °F) freezes first.”Source (WIKI)
He Was Initially Ridiculed: he was dismissed by his peers and superiors however he did not let that stopped him and continued to conduct his experiments.
His findings was recognized and his results published in 1969 while he studied at the African Wildlife Management
What Causes The Mpemba Effect?: While the Mpemba effect has been observed by various people over the years, the explanation for why it occurs is not entirely straightforward and depends on multiple factors, including evaporation, convection currents, and supercooling.
Others Have Several theories attempt to explain the Mpemba effect, but there is no universally accepted explanation. Some factors that may contribute include faster evaporation of hot water, differences in dissolved gases, and the presence of convection currents that promote faster cooling. The Mpemba effect is a curious and interesting phenomenon, but its precise mechanisms are still a subject of scientific inquiry and debate.
