A team of researchers from the University of Science and Technology of China, the Chinese Academy of Sciences and the Southern University of Science and Technology, has discovered a thought-provoking pattern in cross-sections observed in an F + HD → HF + D reaction. In their paper published in the journal Science, the group describes their double-pronged approach to learning more…
Tag: difficulty
Quantum Computer Solves Decades-Old Problem Three Million Times Faster Than a Classical Computer
ZDNet reports: Scientists from quantum computing company D-Wave have demonstrated that, using a method called quantum annealing, they could simulate some materials up to three million times faster than it would take with corresponding classical methods. Together with researchers from Google, the scientists set out to measure the speed of simulation in one of D-Wave’s quantum annealing processors, and found that…
A new way of forming planets
In the last 25 years, scientists have discovered over 4000 planets beyond the borders of our solar system. From relatively small rock and water worlds to blisteringly hot gas giants, the planets display a remarkable variety. This variety is not unexpected. The sophisticated computer models, with which scientists study the formation of planets, also spawn very different planets. What the models…
AEgIS on track to test freefall of antimatter
It’s a fundamental law of physics that even the most ardent science-phobe can define: matter falls down under gravity. But what about antimatter, which has the same mass but opposite electrical charge and spin? According to Einstein’s general theory of relativity, gravity should treat matter and antimatter identically. Finding even the slightest difference in their free-fall rate would therefore lead to…
The Future of Jobs is Here: 10 Courses to Take in 2021
By Betty Vandenbosch, Chief Content Officer, Coursera As the new year unfolds, many challenges from 2020 persist: the pandemic continues to affect economies around the world and unemployment rates are still high. As we prepare to take advantage of new opportunities in 2021, professional development is top of mind for many. How can I gain […]
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Apple’s China App Store Sheds Videogames as Beijing Tightens Internet Control
Apple is booting thousands of videogame apps [Editor’s note: the link may be paywalled; alternative source] from its platform in China as the government clamps down harder on such content, illustrating the tech giant’s vulnerability to state pressure on its business. From a report: The iPhone maker this month warned Chinese developers that a new wave of paid gaming apps are…
Figuring out how to breathe the moon’s regolith
Oxygen ranks right up there as one of the most important resources for use in space exploration. Not only is it a critical component of rocket fuel, it’s also necessary for astronauts to breathe anywhere outside Earth’s atmosphere. Availability of this abundant resource isn’t a problem—it’s widely available throughout the solar system. One place it is particularly prevalent is lunar regolith,…
In Rural ‘Dead Zones,’ School Comes On a Flash Drive
An anonymous reader quotes a report from The New York Times: Shekinah and Orlandria Lennon were sitting at their kitchen table this fall, taking online classes, when video of their teachers and fellow students suddenly froze on their laptop screens. The wireless antenna on the roof had stopped working, and it could not be fixed. Desperate for a solution, their mother…
Feeding a galaxy’s nuclear black hole
A galactic bar is the approximately linear structure of stars and gas that stretches across the inner regions of some galaxies. The bar stretches from one inner spiral arm, across the nuclear region, to an arm on the other side. Found in about half of spiral galaxies, including the Milky Way, bars are thought to funnel large amounts of gas into…
Hubble telescope reveals asteroid Psyche’s rusty surface
Scientists already had Psyche classified as a metallic asteroid, but new observations with the Hubble telescope reveal its rusty surface and provide scientists with a unique view into what Earth-like planets are like during their formation. Source: https://earthsky.org/space/hubble-asteroid-psyche-iron-nickel-rust-protoplanet…