Light and foraging ants seem totally unrelated, but they have one thing in common: They travel along time-reducing paths. According to Fermat's principle about the refraction of a ray of light, the light bends when it meets ...
Plants & Animals
May 27, 2020
0
2
Like crystal balls for the universe's deeper mysteries, galaxies and other massive space objects can serve as lenses to more distant objects and phenomena along the same path, bending light in revelatory ways.
Astronomy
May 14, 2020
1
615
Bochum cosmologists headed by Professor Hendrik Hildebrandt have gained new insights into the density and structure of matter in the universe. Several years ago, Hildebrandt had already been involved in a research consortium ...
Astronomy
Apr 28, 2020
45
168
About 85% of the matter in the universe is in the form of dark matter, whose nature remains a mystery, and the rest is of the kind found in atoms. Dark matter exhibits gravity but otherwise does not interact with normal matter, ...
Astronomy
Mar 19, 2020
23
929
Using a single lens that is about one-thousandth of an inch thick, researchers have created a camera that does not require focusing. The technology offers considerable benefits over traditional cameras such as the ones in ...
Optics & Photonics
Mar 12, 2020
5
6157
Researchers have incorporated ultra-thin optical devices known as metasurfaces into off-the-shelf contact lenses to correct deuteranomaly, a form of red-green color blindness. The new customizable contact lens could offer ...
Optics & Photonics
Mar 4, 2020
2
333
By conveniently and painlessly collecting data, wearable sensors create many new possibilities for keeping tabs on the body. In order to work, these devices need to stay next to the skin. In a study described in ACS Omega, ...
Materials Science
Feb 5, 2020
0
7
Researchers at Tohoku University have developed a new type of smart contact lenses that can prevent dry eyes. The self-moisturizing system, which is described in the journal Advanced Materials Technologies, maintains a layer ...
Materials Science
Jan 22, 2020
0
22
Warm, cold, just right? Physicists at the University of California, Davis are taking the temperature of dark matter, the mysterious substance that makes up about a quarter of our universe.
Astronomy
Jan 15, 2020
88
471
Galaxies. Amalgamations of stars, interstellar gas, dust, stellar debris and dark matter. They waltz through the cold universe, gravity nurturing their embrace. Occasionally, galaxies snowball into enormous galaxy clusters ...
Astronomy
Jan 14, 2020
0
154
