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ScienceDaily: Top Technology News |
| Scientists discover how oxygen loss saps a lithium-ion battery's voltage Posted: 14 Jun 2021 03:56 PM PDT Scientists took a unique and detailed nanoscale look at how oxygen seeps out of lithium-ion battery electrodes, sapping their energy over time. The results could suggest a fix. |
| Lightning impacts edge of space in ways not previously observed Posted: 14 Jun 2021 03:55 PM PDT A team of researchers working with data collected by an Incoherent Scatter Radar (ISR) have examined the simultaneous impacts of thunderstorms and solar flares on the ionospheric D-region (often referred to as the edge of space). |
| Switchable mirrors from liquid metal Posted: 14 Jun 2021 03:55 PM PDT Researchers show that switching between reflective and scattering states can be achieved with just 1.4 V, about the same voltage used to light a typical LED. |
| Microbes in ocean play important role in moderating Earth's temperature Posted: 14 Jun 2021 03:55 PM PDT A new study uncovers where much of the carbonate consumption in the deep sea is happening - a process that prevents its escape into Earth's atmosphere. Researchers collected and examined methane-eating microbes from seven geologically diverse seafloor seeps and found that the carbonate rocks from all sites host methane-oxidizing microbial communities with the highest rates of methane consumption. |
| Dark matter is slowing the spin of the Milky Way's galactic bar Posted: 14 Jun 2021 12:39 PM PDT For 30 years, astrophysicists have predicted such a slowdown, but this is the first time it has been measured. The researchers say it gives a new type of insight into the nature of dark matter, which acts like a counterweight slowing the spin. |
| Boundary of heliosphere mapped Posted: 14 Jun 2021 12:39 PM PDT For the first time, the boundary of the heliosphere has been mapped, giving scientists a better understanding of how solar and interstellar winds interact. |
| Near-field routing of hyperbolic metamaterials Posted: 14 Jun 2021 12:39 PM PDT Researchers recently demonstrated an all-electric scheme able to flexibly control the propagation direction of near-field light. |
| Insulators turn up the heat on quantum bits Posted: 14 Jun 2021 12:39 PM PDT Physicists have long suspected that dielectric materials may significantly disrupt ion-trap quantum computers. Now, researcher have developed a new method to quantify this source of error for the first time. For the future operation of quantum computers with very many quantum bits, such noise sources need to be eliminated already during the design process if possible. |
| New combination of materials provides progress toward quantum computing Posted: 14 Jun 2021 12:39 PM PDT Engineers have demonstrated how, when the TMDC materials they make are stacked in a particular geometry, the interaction that occurs between particles gives researchers more control over the devices' properties. Specifically, the interaction between electrons becomes so strong that they form a new structure known as a correlated insulating state. This is an important step, researchers said, toward developing quantum emitters needed for future quantum simulation and computing. |
| Peering inside 2D crystal synthesis Posted: 14 Jun 2021 10:12 AM PDT Theorists simulate the molecular transitions that take place inside a furnace to create 2D molybdenum disulfide, a semiconductor that could find a home in next-generation electronics. |
| Stents inspired by paper-cutting art can deliver drugs to the GI tract Posted: 14 Jun 2021 10:12 AM PDT Inspired by kirigami, the Japanese art of folding and cutting paper, engineers have designed a new type of stent that could be used to deliver drugs to the gastrointestinal tract, respiratory tract, or other tubular organs in the body. |
| One step towards a daily-use deep UV light source for sterilization and disinfection Posted: 14 Jun 2021 10:12 AM PDT Researchers invented a more efficient device for doubling the frequency of incoming light by combining period reflectors inside a microcavity containing gallium nitride. This work may help in the construction of a deep UV light source with bactericidal effect that is both safe and practical. |
| Posted: 14 Jun 2021 08:08 AM PDT Not only the 11-year cycle, but also all other periodic solar activity fluctuations can be clocked by planetary attractive forces. With new model calculations, they are proposing a comprehensive explanation of known sun cycles for the first time. They also reveal the longest fluctuations in activity over thousands of years as a chaotic process. |
| Black holes help with star birth Posted: 14 Jun 2021 08:08 AM PDT The cosmic mass monsters clear the way for the formation of new suns in satellite galaxies. |
| From milk protein, a plastic foam that gets better in a tough environment Posted: 14 Jun 2021 08:08 AM PDT A new high-performance plastic foam developed from whey proteins can withstand extreme heat better than many common thermoplastics made from petroleum. A research team reports that the material, which may be used for example in catalysts for cars, fuel filters or packaging foam, actually improves its mechanical performance after days of exposure to high temperatures. |
| Engineers devise novel approach to wirelessly power wearable devices Posted: 14 Jun 2021 08:08 AM PDT Researchers have come up with a way to use one single device - such as a mobile phone or smart watch - to wirelessly power up to 10 wearables on a user. This novel method uses the human body as a medium for transmitting power. Their system can also harvest unused energy from electronics in a typical home or office environment to power the wearables. |
| Key cause of energy loss in spintronic materials Posted: 14 Jun 2021 08:08 AM PDT A study uncovered a property of magnetic materials that will allow engineers to develop more efficient spintronic devices in the future, which could lead to faster and more efficient computing and data storage. |
| New method makes generic polymers luminescent Posted: 14 Jun 2021 06:38 AM PDT Researchers have developed a simple method that converts existing generic polymers into luminescent polymers using mechanical force. |
| AI predicts how patients with viral infections, including COVID-19, will fare Posted: 11 Jun 2021 08:08 AM PDT Gene expression patterns associated with pandemic viral infections provide a map to help define patients' immune responses, measure disease severity, predict outcomes and test therapies -- for current and future pandemics. |
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