China Charges Ahead With a National Digital Currency

The electronic Chinese yuan is now being tested in cities such as Shenzhen, Shanghai and Beijing. No other major power is as far along with a homegrown digital currency. From a report: Annabelle Huang recently won a government lottery to try China’s latest economics experiment: a national digital currency. After joining the lottery through the social media app WeChat, Ms. Huang,…

Boston Dynamics Is Selling its 70-Pound Robot Dog To Police Departments

The New York Times reports on what the city’s police department calls Digidog, “a 70-pound robotic dog with a loping gait, cameras and lights affixed to its frame, and a two-way communication system that allows the officer maneuvering it remotely to see and hear what is happening.”
Police said the robot can see in the dark and assess how safe it is…

Successful engine test brings Australian space launch capability a step closer

An Australian research consortium has successfully tested a next generation propulsion system that could enable high-speed flight and space launch services. Source: https://phys.org/news/2021-02-successful-australian-space-capability-closer.html…

Ion-optics-based quantum microscope can image individual atoms

A team of researchers at Universität Stuttgart has developed an ion-optics-based quantum microscope that is capable of creating images of individual atoms. In their paper published in the journal Physical Review Letters, the group explains how they built their microscope and how well it worked when tested. …

Life from Earth could temporarily survive on Mars

Some microbes on Earth could temporarily survive on the surface of Mars, finds a new study by NASA and German Aerospace Center scientists. The researchers tested the endurance of microorganisms to Martian conditions by launching them into the Earth’s stratosphere, as it closely represents key conditions on the Red Planet. Published in Frontiers in Microbiology, this work paves the way for…

Hundreds of fish species, including many we eat, are consuming plastic

As more and more plastic trash permeates the oceans, microplastics are making their way into fish and shellfish, and potentially into humans. Source: https://earthsky.org/earth/hundreds-fish-species-consume-microplastics-including-human-food…

Supercomputer turns back cosmic clock

Astronomers have tested a method for reconstructing the state of the early universe by applying it to 4000 simulated universes using the ATERUI II supercomputer at the National Astronomical Observatory of Japan (NAOJ). They found that together with new observations, the method can set better constraints on inflation, one of the most enigmatic events in the history of the universe. The…

‘Nature’ Urges More Masks, Air Purifiers, and Ventilation Instead of Disinfecting Surfaces

“Catching the coronavirus from surfaces is rare. The World Health Organization and national public-health agencies need to clarify their advice,” urges an editorial in Nature (shared by long-time Slashdot reader AmiMoJo): A year into the pandemic, the evidence is now clear. The coronavirus SARS-CoV-2 is transmitted predominantly through the air — by people talking and breathing out large droplets and small…

Remote Tasmanian Island To Be Powered By ‘Blowhole’ Energy That Harnesses Waves

An anonymous reader quotes a report from The Guardian: Technology that harnesses wave energy through a “blowhole” is being tested at a remote Tasmanian island in a project backed by federal grants and investors. When the mostly above-water unit is connected in about a month, King Island in Bass Strait will be powered by three renewables — wave, wind and solar….