Because science! Cool stuff that only happens in the freezing cold | The Sideshow - Yahoo News: "The phenomenon is known as the Mpemba effect and is named after Ernesto Mpemba, a student from Tanzania who found that he could make ice cream faster if he used milk that had been heated up. His claims were mocked by some, but Mpemba asked around and found that local ice cream merchants were already using his technique. Today it's widely accepted, if not exactly widely understood."
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