News tagged with granular media

How granular material becomes solid: Stress causes clogs in coffee and coal

It's easy to get in a jam. But it's much harder to explain exactly how or when it started.

Physics / General Physics

created Dec 14, 2011 | popularity 5 / 5 (4) | comments 4 | with audio podcast

Study Reveals Small Lizard Tucks Legs and Swims Like a Snake Through Desert Sand (w/ Video)

(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 ...

Physics / General Physics

created Jul 16, 2009 | popularity 4.7 / 5 (11) | comments 0

Researchers learn why robots get stuck in the sand -- and how to keep them going (Video)

(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 ...

Electronics / Robotics

created Feb 09, 2009 | popularity 4.2 / 5 (6) | comments 5




Search results for granular media


Troubled waters: New device brings flexibility, precision to contamination measurement

Lake Apopka—Florida's third largest—was once a haven for migratory birds, vacationers and fishermen. Today it is a toxic broth of chemicals and ranks among America's more disturbing Superfund sites.

Space & Earth / Environment

created Nov 08, 2011 | popularity 5 / 5 (1) | comments 0

Patterned media technique achieves Terabit data recording densities

(PhysOrg.com) -- In an effort to increase the recording densities of hard disk drives, patterned media has become one of the most promising strategies for achieving recording densities beyond 1 Tbit/in2. In pattern ...

Nanotechnology / Nanophysics

created Sep 06, 2011 | popularity 4.2 / 5 (23) | comments 9 | with audio podcast feature

Weighted ping-pong balls can fall endlessly through a granular medium (w/ video)

(PhysOrg.com) -- When a meteor impacts a planet or a moon, it always stops at a relatively shallow depth, even when impacting at high speeds. Until now, researchers have assumed that all objects impacting ...

Physics / General Physics

created Jun 27, 2011 | popularity 4.2 / 5 (12) | comments 38 | with audio podcast feature

Online local news does not replace traditional newsroom sources, study shows

For those who hoped that online local news sources could take over for shrinking newspaper organizations, the prognosis is grim. According to a new study authored by George Washington University Professor Matthew Hindman ...

Other Sciences / Social Sciences

created Jun 16, 2011 | popularity 3 / 5 (1) | comments 0

A tiltable head could improve the ability of undulating robots to navigate disaster debris (w/ video)

Search and rescue missions have followed each of the devastating earthquakes that hit Haiti, New Zealand and Japan during the past 18 months. Machines able to navigate through complex dirt and rubble environments ...

Electronics / Robotics

created May 09, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

'3-D towers' of information double data storage areal density

Using well-known patterned media, a team of researchers in France has figured out a way to double the areal density of information by essentially cutting the magnetic media into small pieces and building a ...

Physics / General Physics

created Apr 19, 2011 | popularity 3.5 / 5 (2) | comments 2 | with audio podcast

Architecture of soil particles greatly influences if, when pollutants migrate

Pollutants can find themselves ensnared underground with few options for escape, according to a study by scientists at Iowa State University, University of Texas at Arlington, and Pacific Northwest National ...

Chemistry / Materials Science

created Oct 14, 2010 | popularity not rated yet | comments 0

Can governments prevent terrorism while also respecting human rights?

A new research symposium investigates the interrelationships between terrorism and governmental respect for human rights, regarding both how political authorities respond to terrorist violence and how human rights abuses ...

Other Sciences / Social Sciences

created Jul 01, 2010 | popularity 5 / 5 (1) | comments 1

MySpace simplifies settings as Facebook criticised

MySpace has announced plans to simplify its privacy settings as it seeks to differentiate itself from social network rival Facebook, which is under fire over its privacy practices.

Technology / Internet

created May 18, 2010 | popularity not rated yet | comments 0

Study exposes how sea turtle hatchlings use their flippers to move quickly on sand (w/ Video)

Life can be scary for endangered loggerhead sea turtles immediately after they hatch. After climbing out of their underground nest, the baby turtles must quickly traverse a variety of terrains for several ...

Biology / Plants & Animals

created Feb 25, 2010 | popularity 1 / 5 (1) | comments 0 | with audio podcast


List of search results for granular media