News tagged with sand grains
X-rays create a window on glass formation: First ever visualization of how powder becomes molten glass
Scientists have for the first time visualised the transformation of powder mixtures into molten glass. A better understanding of this process will make it possible to produce high quality glass at lower temperatures, ...
Apr 16, 2012 |
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Transverse instability of megaripples
Aeolian ripples, which form regular patterns on sand beaches and desert floors, indicate the fundamental instability of flat sand surfaces under the wind-induced transport of sand grains.
Space & Earth / Earth Sciences
Mar 20, 2012 |
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A 'melted' moon makes for bad future landing sites
The miniature radio frequency (min-RF) radar instrument aboard the Lunar Reconnaissance Orbiter (LRO) is revealing some interesting things about how impact melts form around craters on the Moon. Impacts produce ...
Space & Earth / Space Exploration
Mar 05, 2012 |
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Oil more easily converted into petrol thanks to a smart observational technique
Catalysts are needed to convert crude oil into petrol and other fuels. However, a technique for accurately determining how well individual catalyst particles work or continue to work was not available.
Nov 08, 2011 |
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Earth's oldest fossils boost hopes for life on Mars
(PhysOrg.com) -- Microfossils found in Australia show that more than 3.4 billion years ago, bacteria thrived on an Earth that had no oxygen, a finding that boosts hopes life has existed on Mars, a study published ...
Space & Earth / Earth Sciences
Aug 21, 2011 |
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Researchers discover ancient symbiosis between animals, bacteria
Marine shallow water sandy bottoms on the surface appear desert-like and empty, but in the interstitial space between the sand grains a diverse fauna flourishes. In addition to bacteria and protozoa numerous ...
Jun 27, 2011 |
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Even Canadian rocks are different
Canadians have always seen themselves as separate and distinct from their American neighbours to the south, and now they have geological proof.
Space & Earth / Earth Sciences
Mar 28, 2011 |
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Why the sandfish lizard wriggles as it does (w/ Video)
(PhysOrg.com) -- The sandfish lizard (Scincus scincus) lives in the desert sands of North Africa and burrows through the sand by wriggling. Now scientists in the US have created a computer model that emulat ...
Feb 25, 2011 |
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These grains can be solid, liquid or dust
(PhysOrg.com) -- Take a walk along the beach and you might marvel at any number of things: the cresting waves, the occasional scuttling crab, the shells and odd shapes of driftwood that wash ashore.
Mar 24, 2010 |
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Scientists Investigate Cause of 'Singing Dunes'
(PhysOrg.com) -- In more than 30 locations around the world, the phenomenon of singing sand dunes has intrigued explorers, tourists, and scientists. When an avalanche occurs or even when the sand is pushed ...
Dec 15, 2009 |
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Cassini Maps Global Pattern of Titan's Dunes
(PhysOrg.com) -- Titan's vast dune fields, which may act like weather vanes to determine general wind direction on Saturn's biggest moon, have been mapped by scientists who compiled four years of radar data ...
Space & Earth / Space Exploration
Feb 27, 2009 |
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