Using the High Energy Stereoscopic System (HESS), German astronomers have investigated a very-high-energy (VHE) gamma-ray source known as HESS J1809−193. Results of the study, published January 18 on the arXiv preprint ...
A research team at the University of Göttingen has developed a new method to produce X-ray images in color. In the past, the only way to determine the chemical composition of a sample and the position of its components using ...
Optics & Photonics
Jan 24, 2023
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165
There is no good place to be when a nuclear bomb goes off. Anything too close is instantly vaporized, and radiation can pose a serious health threat even at a distance. In between, there is another danger: the blast wave ...
General Physics
Jan 17, 2023
4
179
Glucocorticoids—such as cortisone—are among the most widely used anti-inflammatory drugs, and are used to treat asthma, psoriasis, organ transplantation and even COVID-19. Regarding their pharmacological action, the activity ...
Biochemistry
Dec 5, 2022
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96
Nuclear fusion reactions in the sun are the source of heat and light we receive on Earth. These reactions release a massive amount of cosmic radiation—including X-rays and gamma rays—and charged particles that can be ...
Space Exploration
Oct 3, 2022
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8
Researchers at the University of Turku, Finland, have long studied the color-changing properties of the natural mineral hackmanite upon exposure to UV radiation or X-rays. Now, the research group is studying the reactions ...
Analytical Chemistry
Sep 29, 2022
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8
The accident at reactor four of the Chernobyl Nuclear Power Plant in 1986 generated the largest release of radioactive material into the environment in human history. The impact of the acute exposure to high doses of radiation ...
Evolution
Sep 29, 2022
17
6927
Gray and white flecks skitter erratically on a computer screen. A towering microscope looms over a landscape of electronic and optical equipment. Inside the microscope, high-energy, accelerated ions bombard a flake of platinum ...
Analytical Chemistry
Sep 22, 2022
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421
It was just a piece of junk sitting in the back of a lab at the MIT Nuclear Reactor facility, ready to be disposed of. But it became the key to demonstrating a more comprehensive way of detecting atomic-level structural damage ...
Condensed Matter
Aug 3, 2022
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243
A lone molecule free in cold space will cool by slowing down its rotation—it will spontaneously lose its rotational energy in quantum transitions, typically only once in many seconds. This process can be accelerated, slowed ...
Quantum Physics
May 9, 2022
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195
