News tagged with granular material
Of traffic jams, beach sands and the zero-temperature jamming transition
May 13, 2009 |
3.3 / 5 (3) |
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Researchers in condensed matter physics at the University of Pennsylvania and the University of Chicago have created an experimental and computer model to study how jamming, the physical process in which collections of particles ...
Uncovering the real dirt on granular flow
Technology / Computer Sciences
Dec 03, 2008 |
4.4 / 5 (5) |
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(PhysOrg.com) -- A handful of sand contains countless grains, which interact with each other via friction and impact forces as they slip through your fingers. When a handful becomes a load in an excavator bucket, those interactions ...
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Physicists Develop Force Law for Granular Impacts: Sand, Other Granular Matter's Behavior Is Better Defined
Apr 20, 2007 |
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Sand. A single grain is tiny, but solid, and shares the physical properties of other solid matter. But pack or transport millions of grains together - as modern society does with coffee grounds, flour and industrial chemicals ...
Researchers learn why robots get stuck in the sand -- and how to keep them going (Video)
Feb 09, 2009 |
4.2 / 5 (6) |
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(PhysOrg.com) -- Today's advanced mobile robots explore complex terrains across the globe and even on Mars, but have difficulty traversing sand and other granular media like dirt, rubble or slippery piles ...
Researchers discover theoretical model to predict jamming
Apr 25, 2008 |
4.7 / 5 (10) |
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Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have come up with a theoretical model to predict when granular materials become jammed. This advancement not only broadens fundamental knowledge, ...
To improve forecasting earthquakes, NJIT mathematician studies grains
Dec 22, 2008 |
4.2 / 5 (6) |
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A new and better way to predict earthquakes and avalanches may soon be available to forecasters thanks to mathematical research underway at NJIT. Using mathematical modeling, researchers are investigating how forces and ...
Study Reveals Small Lizard Tucks Legs and Swims Like a Snake Through Desert Sand (w/ Video)
Jul 16, 2009 |
4.7 / 5 (11) |
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(PhysOrg.com) -- A study published in the July 17 issue of the journal Science details how sandfish -- small lizards with smooth scales -- move rapidly underground through desert sand. In this first thorou ...
Physicists see similarities in stream of sand grains, exotic plasma at birth of universe
Nov 06, 2007 |
4.1 / 5 (32) |
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Streams of granular particles bouncing off a target in a simple tabletop experiment produce liquid-like behavior also witnessed in a massive research apparatus that simulates the birth of the universe. A team ...
Physicists discover temperature key to avalanche movement
Physics /
Feb 01, 2005 |
not rated yet |
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100 years after Einstein's landmark work on Brownian motion, physicists have discovered a new concept of temperature that could be the key to explaining how ice and snow particles flow during an avalanche, and could lead ...
So-called 'sandfish' could help materials handling and process technology specialists
Biology /
Oct 03, 2008 |
4 / 5 (2) |
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It moves as quickly in sand as a fish moves through water, which is why this lizard, a species of skink (Scincus scincus) that grows to about 15 cm long and lives in the deserts of North Africa and the Near East, is common ...
MIT tether could aid asteroid missions
Space & Earth / Space Exploration
Sep 25, 2007 |
3.9 / 5 (11) |
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Using a tether system devised by MIT researchers, astronauts could one day stroll across the surface of small asteroids, collecting samples and otherwise exploring these rocks in space without floating away. ...
Shake and stir to make granular materials change phases
Physics /
May 06, 2005 |
4 / 5 (1) |
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In an experiment originally planned for the International Space Station, physicists at Duke University have devised a controlled, measurable method to make a container of granules -- in this case plastic beads -- "freeze" ...
List of search results for granular material
