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The Mpemba effect - Hot water freezes faster than cold water

The Mpemba effect is the observation that a volume of hot water will freeze faster than the same volume of cooler water. The scientific community are still not exactly sure why this happens. What do you think?

Paxman: 'This experiment is a complete shambles'

An amusing attempt to demonstrate the Mpemba effect on live television, which completely fails as neither water samples are even close to freezing.