5 Really Weird Things About Water

5 Really Weird Things About Water | The Best Article Every day:

"In 1963, a Tanzanian high-school student named Erasto B. Mpemba was freezing hot ice cream mix in a cooking class when he noticed that a hot mix actually froze faster than a cold mix. When he asked his teacher about this phenomenon, his teacher ridiculed him by saying ‘All I can say is that is Mpemba’s physics and not universal physics.’

Thankfully, Mpemba didn’t back down - he convinced a physics professor to conduct an experiment which eventually confirmed his observations: in certain conditions, hot water indeed freezes before cold water*.

Actually, Mpemba was in good company. The phenomenon of hot water freezing first, now called the ‘Mpemba effect’ was noted by none other than Aristotle, Francis Bacon and René Descartes."