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| Development of a lithium-air battery with an energy density over 500 wh/kg Posted: 20 Jan 2022 11:07 AM PST Researchers have developed a lithium-air battery with an energy density over 500Wh/kg -- significantly higher than currently lithium ion batteries. The research team then confirmed that this battery can be charged and discharged at room temperature. In addition, the team found that the battery developed by the team shows the highest energy densities and best cycle life performances ever achieved. These results signify a major step toward the practical use of lithium-air batteries. |
| Posted: 20 Jan 2022 11:07 AM PST Researchers discover crystalline zeolites in a nanotubular (1D) shape. |
| Worldwide coordinated search for dark matter Posted: 20 Jan 2022 09:54 AM PST An international team of researchers has published comprehensive data on the search for dark matter using a worldwide network of optical magnetometers. According to the scientists, dark matter fields should produce a characteristic signal pattern that can be detected by correlated measurements at multiple stations of the GNOME network. |
| Impossible material made possible inside a graphene sandwich Posted: 20 Jan 2022 07:34 AM PST Atoms bind together by sharing electrons. The way this happens depends on the atom types but also on conditions such as temperature and pressure. In two-dimensional (2D) materials, such as graphene, atoms join along a plane to form structures just one atom thick, which leads to fascinating properties determined by quantum mechanics. |
| Towards compact quantum computers thanks to topology Posted: 20 Jan 2022 07:34 AM PST Researchers at PSI have compared the electron distribution below the oxide layer of two semiconductors. The investigation is part of an effort to develop particularly stable quantum bits -- and thus, in turn, particularly efficient quantum computers. |
| When graphene speaks, scientists can now listen Posted: 19 Jan 2022 04:42 PM PST Brothers working in a lab discover that sound can be used to analyze the properties of laser-induced graphene in real time. |
| Posted: 19 Jan 2022 04:42 PM PST Scientists monitoring the giant A68A Antarctic iceberg from space reveal that a huge amount of fresh water was released as it melted around the sub-Antarctic island of South Georgia. 152 billion tonnes of fresh water -- equivalent to 20 x Loch Ness or 61 million Olympic sized swimming pools, entered the seas around the sub-Antarctic island of South Georgia when the megaberg A68A melted over 3 months in 2020/2021, according to a new study. |
| Hubble finds a black hole igniting star formation in a dwarf galaxy Posted: 19 Jan 2022 04:41 PM PST Often portrayed as destructive monsters that hold light captive, black holes take on a less villainous role in the latest research from NASA's Hubble Space Telescope. A black hole at the heart of the dwarf galaxy Henize 2-10 is creating stars rather than gobbling them up. The black hole is apparently contributing to the firestorm of new star formation taking place in the galaxy. The dwarf galaxy lies 30 million light-years away, in the southern constellation Pyxis. |
| Kombucha water filters can resist clogging better than commercial options Posted: 19 Jan 2022 12:52 PM PST Commercially available ultrafiltration membranes that purify water are expensive and get clogged easily by particles and microorganisms. Recently, living filtration membranes were reported as an alternative sieving material. Grown from kombucha cultures, the filters are dense, stacked sheets of bacterial cellulose. Now, researchers show that these living membranes are more resistant to clogging and biofouling, making them more efficient and less expensive to use than conventional ones. |
| How many black holes are out there in the universe? Posted: 19 Jan 2022 12:52 PM PST A new study has investigated stellar mass black holes, which are black holes with masses between a few to some hundred solar masses, that originated at the end of the life of massive stars. According to the study, a remarkable amount of around 1 percent of the overall ordinary matter of the universe is locked up in stellar mass black holes. Astonishingly, the researchers have found that the number of black holes within the observable universe at present time is about about 40 times 10 to the exponent 18. |
| Camels’ noses inspire a new humidity sensor Posted: 19 Jan 2022 11:28 AM PST Researchers describe a humidity sensor inspired by the structure and properties of camels' noses. In experiments, they found this device could reliably detect variations in humidity in settings that included industrial exhaust and the air surrounding human skin. |
| A new approach to a $1 million mathematical enigma Posted: 19 Jan 2022 10:50 AM PST Numbers like pi, e and phi often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a deceptively straightforward function that has perplexed mathematicians since the 19th century. The most famous quandary, the Riemann hypothesis, is perhaps the greatest unsolved question in mathematics, with the Clay Mathematics Institute offering a $1 million prize for a correct proof. |
| New simulations can improve avalanche forecasting Posted: 19 Jan 2022 10:50 AM PST Computer simulations of snow cover can accurately forecast avalanche hazard, according to a new international study. Currently, avalanche forecasts in Canada are made by experienced professionals who rely on data from local weather stations and on-the-ground observations from ski and backcountry ski operators, avalanche control workers for transportation and industry, and volunteers who manually test the snowpack. |
| 2020 volcanic eruption leads to hours-long thunderstorm Posted: 19 Jan 2022 10:50 AM PST A study discusses how advances in global lightning detection have provided novel ways to characterize explosive volcanism. |
| Scientists achieve key elements for fault-tolerant quantum computation in silicon spin qubits Posted: 19 Jan 2022 09:15 AM PST Researchers have achieved a key milestone toward the development of a fault-tolerant quantum computer. They were able to demonstrate a two-qubit gate fidelity of 99.5 percent -- higher than the 99 percent considered to be the threshold for building fault-tolerant computers -- using electron spin qubits in silicon, which are promising for large-scale quantum computers as the nanofabrication technology for building them already exists. |
| Quantum computing in silicon hits 99 percent accuracy Posted: 19 Jan 2022 09:15 AM PST Researchers have proven that near error-free quantum computing is possible, paving the way to build silicon-based quantum devices compatible with current semiconductor manufacturing technology. |
| Inner workings of quantum computers Posted: 19 Jan 2022 09:14 AM PST A precision diagnostic is emerging as a gold standard for detecting and describing problems inside quantum computing hardware. |
| Solving a crystal's structure when you've only got powder Posted: 19 Jan 2022 09:14 AM PST Crystals reveal the hidden geometry of molecules to the naked eye. Scientists use crystals to figure out the atomic structure of new materials, but many materials can't be grown large enough. Now, a team of researchers report a new technique that can lead to the discovery of the crystalline structure of any substance. |
| Decarbonization tech instantly converts carbon dioxide to solid carbon Posted: 19 Jan 2022 09:14 AM PST A smart and super-efficient new way of capturing carbon dioxide and converting it to solid carbon could help advance the decarbonization of heavy industries. |
| Unexpected energy storage capability where water meets metal surfaces Posted: 19 Jan 2022 09:14 AM PST Researchers have used current and voltage measurements on individual nanoparticles to determine that the capacitively stored charge at platinum interfaces can be significantly higher than previously assumed. They attribute this to a special arrangement and bonding of water molecules. |
| Smart windows can significantly reduce indoor pathogens Posted: 19 Jan 2022 09:13 AM PST Daylight passing through smart windows results in almost complete disinfection of surfaces within 24 hours while still blocking harmful ultraviolet (UV) light, according to new research. For this research, she tested four strains of hazardous bacteria -- methicillin-resistance Staphylococcus aureus, Klebsiella pneumoniae, E. coli and Pseudomonas aeruginosa -- using a mini-living lab set-up. The lab had smart windows, which tint dynamically based on outdoor conditions, and traditional windows with blinds. |
| Self-organization of complex structures: A matter of time Posted: 19 Jan 2022 09:13 AM PST Researchers have developed a new strategy for manufacturing nanoscale structures in a time- and resource-efficient manner. |
| Internal ocean in small Saturn moon uncovered Posted: 19 Jan 2022 07:12 AM PST A scientist recently set out to prove that the tiny, innermost moon of Saturn was a frozen inert satellite and instead discovered compelling evidence that Mimas has a liquid internal ocean. In the waning days of NASA's Cassini mission, the spacecraft identified a curious libration, or oscillation, in the moon's rotation, which often points to a geologically active body able to support an internal ocean. |
| Antifreeze cream prevents frostbite injuries to skin, study suggests Posted: 19 Jan 2022 06:08 AM PST Skiers, hikers, soldiers and others exposed to extreme cold temperatures can experience frostbite -- a painful injury that occurs when ice crystals form in the skin. Many extremely cold areas are also remote, and delays in frostbite treatment can result in severe wounds, scarring and even limb amputation. Now, researchers have developed a cream that prevents frostbite injuries in mice when applied to the skin 15 minutes before severe cold exposure. |
| 3D robotic spine 'twin' and sensor offer new way to preview surgical interventions Posted: 19 Jan 2022 06:08 AM PST Researchers created a novel 3D printed robotic replica of a human spine modified to include an artificial disc implant with a soft magnetic sensor array to enable surgeons to preview the effects of surgical interventions prior to the operation. The patient-specific model was based on a CT scan of the human spine. Results showed that the soft magnetic sensor array system had the high capability to classify five different postures of the spine with 100 percent accuracy, which can be a predictor of different problems of the spine that people experience. |
| Tuning the bonds of paired quantum particles to create dissipationless flow Posted: 13 Jan 2022 12:13 PM PST An adjustable platform made from atomically thin materials may help researchers figure out how to create a robust quantum condensate that can flow without dissipation. |
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