Under certain conditions, hot water will freeze before cold.That has been known for thousands of years. Noboby yet as proven WHY it happens. Personally, I've seen it happen many times when fixing plumbing in houses with unheated crawl spaces. Most of the time, the hot water pipes freeze first, not the cold water pipes.
One situation where some people have tried to explain it is with the "Mpemba Effect."
It has been proven to happen over and over by scientists, but "why" it happens is still theory.
The latest theory I've heard about is the following:
"Now Jonathan Katz, a physicist at Washington University in St. Louis, has come up with a new hypothesis. Katz's explanation hinges on the presence of solutes. or dissolved substances, in water. "Hard" water contains more solutes than "soft" water does "
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Today's Featured Article - The David Brown Rose Badge - by Samuel Kennedy. In the 13th century civil war was raging in England. Two English noblemen were involved in a conflict which became known as the War of the Roses. The Duke of York had as his emblem a white rose and the Earl of Lancaster had a red rose. Today the white rose is the official emblem of the county of Yorkshire and the red rose has been adopted by the neighboring county of Lancashire.
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