Researchers make sand that flows uphill
Engineering researchers at Lehigh University have discovered that sand can actually flow uphill.
Condensed Matter
Sep 20, 2023
0
121
News tagged with granular material
The science of ants' underground cities
Picture an anthill. What do you see? A small mound of sand and crumbly dirt poking up through the lawn? A tiny hole disappearing into the ground? A few ants scrambling around busily. Not very impressive, right?
Plants & Animals
Aug 23, 2021
2
1281
Terradynamics: Technique could help designers predict how legged robots will move on granular surfaces (w/ video)
Using a combination of theory and experiment, researchers have developed a new approach for understanding and predicting how small legged robots – and potentially also animals – move on and interact with complex granular ...
Robotics
Mar 21, 2013
2
0
Missile and meteorite impacts are more complex at the granular level than scientists previously thought
(Phys.org)—High-speed video of projectiles slamming into a bed of disks has given scientists a new microscopic picture of the way a meteorite or missile transfers the energy of its impact to sand and dirt grains.
General Physics
Dec 11, 2012
9
0
Study investigates craters formed by raindrops (w/ Video)
(PhysOrg.com) -- Hiroaki Katsuragi and a team from Kyushu University in Fukuoka, Japan, have been investigating what happens when water drops of various sizes are allowed to fall from a height of 10 to 480 mm onto a granular ...
Of traffic jams, beach sands and the zero-temperature jamming transition
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 ...
Condensed Matter
May 13, 2009
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0
How forest density slows granular flows
One way to reduce the damage caused by avalanches in the mountains is to place obstacles in their path. These obstacles can be artificial barriers or natural forests. Knowing how the avalanche interacts with obstacles is ...
Leonardo da Vinci's forgotten experiments explored gravity as a form of acceleration
Engineers from Caltech have discovered that Leonardo da Vinci's understanding of gravity—though not wholly accurate—was centuries ahead of his time.
General Physics
Feb 13, 2023
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3186
When particles move: A deep dive into the relationship between cohesion and erosion
Landslides are one striking example of erosion. When the bonds that hold particles of dirt and rock together are overwhelmed by a force—often in the form of water—sufficient to pull the rock and soil apart, that same ...
General Physics
Aug 3, 2022
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61
Novel solution to drastically reduce world's largest waste stream
After water, sand is the most exploited natural resource on the planet. However, its extraction from seas, rivers, beaches and quarries has an impact on the environment and surrounding communities. A new study by researchers ...
Earth Sciences
Apr 12, 2022
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