Lubricating oils deteriorate and oxidize with use as well as accumulating particles from the engines and other machinery in which they are used. Ultimately, their effectiveness worsens and they begin to damage the components ...
Biochemistry
Jun 29, 2020
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7
A boiling point of 5900 degrees Celsius and diamond-like hardness in combination with carbon: tungsten is the heaviest metal, yet has biological functions—especially in heat-loving microorganisms. A team led by Tetyana ...
Biochemistry
Jul 9, 2019
0
0
Tremendous progress of organic solar cells (OSCs) has been exemplified by the use of non-fullerene electron acceptors (NFAs) in the past few years. Compared with fullerene derivative acceptors, NFAs show a multitude of advantages ...
Materials Science
Jun 12, 2019
0
4
A tattoo that is warning you for too many hours of sunlight exposure, or is alerting you for taking your medication? Next to their cosmetic role, tattoos could get new functionality using intelligent ink. That would require ...
General Physics
Apr 16, 2019
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15
(Phys.org)—Normally when a liquid is heated above its boiling point, it evaporates, turning into a vapor. But when scientists recently performed an experiment on the International Space Station (ISS), they observed that ...
The bubbles that form on a heated surface create a tiny recoil when they leave it, like the kick from a gun firing blanks. Now researchers at the University of Illinois at Chicago, under funding from NASA, have shown how ...
General Physics
Mar 6, 2017
0
12
The temperature above which a superconductor turns into a normal conductor is called the superconducting transition temperature. Raising it to a point enabling practical applications is a dream in modern science and technology. ...
Superconductivity
May 9, 2016
0
16
Apple received some 30,000 data requests from law enforcement agencies globally in the second half of 2015, and provided information in a majority of cases, the company's latest transparency report showed.
Security
Apr 19, 2016
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4
Turn on a skillet and let it heat up until it is well above the boiling point of water. Then sprinkle a teaspoon of water on the skillet and watch. Water droplets will bounce up, form spheres and scurry across the surface.
General Physics
Feb 1, 2016
0
9
Replacing the large chillers that cool hospitals, museums, and other institutions with more energy-efficient systems means using new materials. Scientists are interested in replacing the silica gel used in today's chillers ...
Materials Science
Aug 8, 2014
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0
