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
0
3186
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
0
61
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
0
80
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
On November 26, NASA's InSight lander will complete its six-and-a-half month journey to Mars, touching down at Elysium Planitia, a broad plain near the Martian equator that is home to the second largest volcanic region on ...
Space Exploration
Nov 22, 2018
0
14
Moving within granular media such as sand is a trick that occurs not only in science-fiction movies. The sandfish lizard, which lives in the desert, is also able to perform this task. In order to do so, this lizard behaves ...
Condensed Matter
Aug 24, 2017
0
3
Dipping a tube into a container filled with water will make the water rise in the tube. This phenomenon is called liquid capillarity. It is responsible for many natural and technical processes, for example the water absorption ...
Condensed Matter
May 24, 2017
2
294
Deposition of a thin film catalyst of a predicted thickness on the surface of novel hydrogen storage microbeads helps release hydrogen.
Condensed Matter
Nov 24, 2016
0
8
For those of you who take sandcastle building very seriously, listen up: MIT engineers now say you can trust a very simple equation to calculate the force required to push a shovel—and any other "intruder"— through sand. ...
Condensed Matter
Aug 29, 2016
0
19
For the first time, Lawrence Livermore National Laboratory (LLNL) researchers have measured how forces move through 3D granular materials, determining how this important class of materials might pack and behave in processes ...
General Physics
Aug 24, 2016
1
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