From falls to football tackles, most blows to the head occur at odd angles. And those impacts trigger simultaneous linear and rotational head motions. The rotating movement in particular causes shear strain, which is especially ...
Nanomaterials
Dec 27, 2023
0
86
Glasses are an enigma among solid phases. Like crystalline solids they are hard, but unlike crystals they are amorphous on the molecular scale. Because of this structural disorder, each piece of glass is technically out of ...
General Physics
Dec 18, 2018
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3
You can easily walk across the sand on a beach. But step into a ball pit, and chances are you'll fall right through.
Condensed Matter
Jul 11, 2017
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6
Once inside the human body, infectious microbes like Salmonella face a fluid situation. They live in a watery world, surrounded by liquid continually flowing over and abrading their cell surfaces—a property known as fluid ...
Cell & Microbiology
Jun 8, 2016
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5
Graphite is known to be a low-friction material, and rocks rich in graphite are often found in fault zones. Oohashi et al. conducted laboratory studies to determine how much graphite is needed to reduce the frictional strength ...
Earth Sciences
May 7, 2013
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1
A research team from Japan has discovered an anomalous softening effect in metallic glass, in which the hardness and elastic modulus of the material are reduced remarkably by applying giant shear strain to metallic glass ...
Condensed Matter
Nov 15, 2012
0
0
It's easy to get in a jam. But it's much harder to explain exactly how or when it started.
General Physics
Dec 14, 2011
4
1
