Newton's third law dictates that forces between interacting particles are equal and opposite for closed systems. In a non-equilibrium environment, the third law can be defied, giving rise to "nonreciprocal" forces. Theoretically, ...
A team of astronomers from Israel, the U.S. and Russia have identified a disrupted galaxy resembling a giant tadpole, complete with an elliptical head and a long, straight tail, about 300 million light years away from Earth. ...
Astronomy
Nov 19, 2018
0
65
In a recent experiment at the University of Nebraska–Lincoln, plasma electrons in the paths of intense laser light pulses were almost instantly accelerated close to the speed of light.
Optics & Photonics
Sep 14, 2018
6
541
Tinkering with a method they helped develop over the last few years, scientists have for the first time measured at the nanometer scale the characteristic patterns of folds that give proteins their three-dimensional shape ...
Biochemistry
Jul 23, 2018
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48
Crystals are brittle and inelastic? A novel class of smart, bendable crystalline organic materials has challenged this view. Now, scientists have engineered a molecular soft cocrystalline structure that bends and twists reversibly ...
Materials Science
Jun 18, 2018
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23
NASA's Solar Dynamics Observatory came across an oddity that the spacecraft has rarely observed before: a dark filament encircling an active region (Oct. 29-31, 2017). Solar filaments are clouds of charged particles that ...
Space Exploration
Nov 9, 2017
3
167
Light consists of a flow of photons. If two waveguides – cables for light – are side by side, they attract or repel each other. The interaction is due to the optical force, but the effect is usually extremely small. Physicists ...
Optics & Photonics
Oct 2, 2017
3
565
Engineers at the University of California San Diego have developed a miniature device that's sensitive enough to feel the forces generated by swimming bacteria and hear the beating of heart muscle cells.
Optics & Photonics
May 15, 2017
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1367
Stress sensors are important tools when it comes to evaluating the robustness of a material facing strong mechanical forces. OIST researchers have just published in Advanced Materials an article reporting a new kind of sensor ...
Materials Science
Apr 17, 2017
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10
A National Institute for Materials Science (NIMS) research group discovered that the amount of friction force between organic molecules and a sapphire substrate in a vacuum can be changed repeatedly by starting and stopping ...
General Physics
Feb 20, 2017
0
9
