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 altitude are an ...
Soft Matter
Apr 21, 2010
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(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 been proposed, ...
(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 remain liquid ...
Freeze casting is an elegant, cost-effective manufacturing technique to produce highly porous materials with custom-designed hierarchical architectures, well-defined pore orientation, and multifunctional surface structures. ...
Analytical Chemistry
Apr 25, 2024
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China's Zhurong rover was equipped with a ground-penetrating radar system, allowing it to peer beneath Mars's surface. Researchers have announced new results from the scans of Zhurong's landing site in Utopia Planitia, saying ...
Planetary Sciences
Nov 30, 2023
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167
Clouds are a lot cooler than you might think. In fact, scientists might say they're super cool because they're made up of millions of supercooled water droplets, droplets that have been cooled below the freezing point but ...
General Physics
Aug 16, 2023
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Researchers at EPFL have found a way to study water in "no man's land," a subzero temperature range where water crystallizes rapidly. Historically, the inability to access "no man's land" has prevented scientists from unriddling ...
Analytical Chemistry
May 30, 2023
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243
Despite their intimidating appearance, the giant yellow and blue-black spiders spreading across the Southeastern U.S. owe their survival to a surprising trait: They're rather timid.
Plants & Animals
May 16, 2023
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No life has yet been found on Mars, but it is exciting to explore the circumstances under which it might be possible. A team led by the Technical University of Berlin (TU Berlin) with the Leibniz Institute of Freshwater Ecology ...
Astrobiology
Dec 14, 2022
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234
When polar seas freeze and ice forms, it is not only due to cold air chilling the surface of the water. Even more important is that warm water is prevented from rising to the surface from the depths of the ocean, due to the ...
Earth Sciences
Nov 16, 2022
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