News tagged with freezing point
Weird world of water gets a little weirder with a new anomaly
Strange, stranger, strangest! To the weird nature of one of the simplest chemical compounds -- the stuff so familiar that even non-scientists know its chemical formula -- add another odd twist. Scientists ...
Nov 09, 2011 |
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Stream water study detects thawing permafrost
Among the worrisome environmental effects of global warming is the thawing of Arctic permafrost -- soil that normally remains at or below the freezing point for at least a two-year period and often much longer. Monitoring ...
May 05, 2010 |
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Experimental explanation of supercooling: Why water does not freeze in the clouds (w/ Video)
Supercooling, a state where liquids do not solidify even below their normal freezing point, still puzzles scientists today. A good example of this phenomenon is found everyday in meteorology: clouds in high ...
Apr 21, 2010 |
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Mpemba effect: Why hot water can freeze faster than cold
(PhysOrg.com) -- Scientists have known for generations that hot water can sometimes freeze faster than cold, an effect known as the Mpemba effect, but until now have not understood why. Several theories have ...
Mar 26, 2010 |
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Freezing point of supercooled water varies with electric charge
(PhysOrg.com) -- Just as water can be superheated and remain liquid above the boiling point if there is no nucleating surface (such as a surface defect or a speck of dust), it can also become supercooled and ...
Feb 08, 2010 |
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