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 - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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