1
2
Oct. 8, 2020 —Researchers have measured, with unprecedented accuracy, the gravitational redshift of the Sun, a change in frequency of the lines in the solar spectrum which is produced when the light escapes from ...
Jan. 11, 2022 —Researchers have now succeeded in producing an extremely simple and compact source of terahertz radiation: An oscillator with double resonant-tunneling diodes. Its radiation power significantly ...
Aug. 4, 2021 —X-ray imaging is a fast and painless way for doctors to see inside a person. But radiation detectors, which go under the body part being imaged, are rigid panels that contain harmful heavy metals, ...
Feb. 16, 2022 —Physicists have measured Albert Einstein's theory of general relativity, or more specifically, the effect called time dilation, at the smallest scale ever, showing that two tiny atomic clocks, ...
June 1, 2022 —Using NASA's SOFIA observatory and other data resources, an international team of astronomers has uncovered evidence of metals in local galaxies -- found to be deficient in earlier studies -- by ...
Nov. 10, 2021 —Engineers have successfully transferred digitally encoded information wirelessly using nuclear radiation instead of conventional technology. The researchers measured the spontaneous emission of fast ...
Apr. 7, 2022 —Researchers have captured images of multiple radionuclides in mice using astronomy ...
Jan. 18, 2023 —Intense, extremely short-wave X-ray pulses in the nanometer wavelength range are difficult to produce, but now a new, simpler method has been developed: the starting point is not a titanium-sapphire ...
Sep. 6, 2022 —A team of physicists and chemists presents an organic thin-film sensor that describes a completely new way of identifying the wavelength of light and achieves a spectral resolution below one ...
Jan. 27, 2022 —Researchers have developed an alumina short-wavelength absorber patterned with moth eye-like structures. These new anti-reflective structures will improve the performance of telescopes studying ...