Until recently, quasars were thought to have essentially fixed positions in the sky. While near-Earth objects move along complex trajectories, quasars are so remote that they were believed to offer stable and reliable reference ...
Astronomy
Apr 25, 2019
1
207
Black holes are known for their voracious appetites, binging on matter with such ferocity that not even light can escape once it's swallowed up.
General Physics
Jan 24, 2019
11
562
Polymers containing plastics are essential in modern life. Being lightweight, strong and unreactive, a vast range of technologies depend on them. However, most polymers do not adhere naturally to other materials, so they ...
Polymers
Dec 27, 2018
0
13
Cancerous tumors, infections or bad fractures can make it necessary to surgically remove bones and insert implants in their place. In collaboration with European partners, Fraunhofer researchers have now developed a technique ...
Engineering
Dec 3, 2018
0
9
The sun's activity waxes and wanes periodically and holds sway over our space environment. Sunspots, strongly magnetized blotches on the solar surface, sometimes release fierce storms in space that severely impact our satellite ...
Astronomy
Jul 13, 2018
0
8
The phenomenon of ionic wind has been known about for centuries: by applying a voltage to a pair of electrodes, electrons are stripped off nearby air molecules, and the ionized air collides with neutral air molecules as it ...
University of Leeds researchers have mathematically examined plasma jets from supermassive black holes to determine why certain types of jets disintegrate into huge plumes.
Astronomy
Dec 11, 2017
7
15
Researchers are starting to discover the curing powers of plasma—bringing the ion-based form of matter into medical realms. A kind of plasma called non-equilibrium atmospheric pressure plasma can help heal wounds, destroy ...
Plasma Physics
Sep 11, 2017
1
453
Bursts of plasma, called plasma jets, have numerous uses ranging from the development of more efficient engines, which could one day send spacecraft to Mars, to industrial uses like spraying nanomaterial coatings on 3-D objects.
Plasma Physics
Jun 20, 2017
0
218
Plasmas have long been used in industry to clean surfaces or to process them such that materials like paints or glues adhere to them more effectively. The advantage: Chemical pre-treatment with solvents or other substances ...
Engineering
Apr 12, 2017
0
8
