Chinese scientists have successfully taken a novel approach to obtain free-electron lasing (FEL) and such an approach may realize the production and popularization of low-cost, table-top FEL devices that may bring breakthrough in multiple disciplines. It was the first time that researchers have been able to obtain the FELbased on the laser wakefield electron accelerator.
To better study how the spheres interact and impact the planet, China launched EarthLab, the first comprehensive virtual earth laboratory in China for simulation the physical climate system, environmental system, ecological system, solid earth system, and space weather system as a whole with a high-performance scientific computing platform.
China's Large High Altitude Air Shower Observatory (LHAASO)—one of the country's key national science and technology infrastructure facilities—has found a dozen ultra-high-energy (UHE) cosmic accelerators within the Milky Way. It has also detected photons with energies exceeding 1 peta-electron-volt (quadrillion electron-volts or PeV), including one at 1.4 PeV. The latter is the highest energy photon ever observed.
FAST, the world's most sensitive radio telescope, now concludes its 15-month listening session and starts to accept international proposals. Its next observing period will begin this August of 2021 and run through July of 2022 and scientists from around the world can take part. Proposals are accepted between March 31 to May 15, 2021.
Researchers from the Dalian Institute of Chemical Physics and the University of Science and Technology of China, for the first time, revealed the effects of electronic angular momentum to a chemical reaction.
An international team, including researchers from National Astronomical Observatories of China, recently found that the stellar-mass black hole in the Cygnus X-1binary system has a mass 21 times the mass of the Sun and rotates at a speed close to the speed of light.
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