The Mpemba effect sounds like it should be easy to debunk: hot water freezing faster than cold water? That's backwards. But under certain conditions, it actually happens, and physicists have been ...

The Mpemba effect, in which hot systems cool faster than cold ones under the same conditions, was first described by Aristotle more than 2,000 years ago. In 1963 it was rediscovered by Tanzanian ...

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When you see pictures of the Great Lakes around Chicago, Detroit or Cleveland, there's a sheet of ice extending from the shore. For the most part, you don't see the same thing with the Atlantic Ocean ...