The “graphene revolution” is almost here. Australian scientists specializing in aluminum-ion batteries are now working with Brisbane-based Graphene Manufacturing Group to commercialize a technology that could transform energy storage.
New observations and simulations show that jets of high-energy particles emitted from the central massive black hole in the brightest galaxy in galaxy clusters can be used to map the structure of invisible inter-cluster magnetic fields. These findings provide astronomers with a new tool for investigating previously unexplored aspects of clusters of galaxies.
As clusters of galaxies grow through collisions with surrounding matter, they create bow shocks and wakes in their dilute plasma. The plasma motion induced by these activities can drape intra–cluster magnetic layers, forming virtual walls of magnetic force. These magnetic layers, however, can only be observed indirectly when something interacts with them. Because it is simply difficult to identify such interactions, the nature of intra-cluster magnetic fields remains poorly understood. A new approach to map/characterize magnetic layers is highly desired.
An international team of astronomers including Haruka Sakemi, a graduate student at Kyushu University (now a research fellow at the National Astronomical Observatory of Japan—NAOJ), used the MeerKAT radio telescope located in the Northern Karoo desert of South Africa to observe a bright galaxy in the merging galaxy cluster Abell 3376 known as MRC 0600–399. Located more than 600 million light-years away in the direction of the constellation Columba, MRC 0600–399 is known to have unusual jet structures bent to 90-degree angles. Previous X-ray observations revealed that MRC 0600–399 is the core of a sub-cluster penetrating the main cluster of galaxies, indicating the presence of strong magnetic layers at the boundary between the main and sub-clusters. These features make MRC 0600–399 an ideal laboratory to investigate interactions between jets and strong magnetic layers.
And as well as producing less waste, insects can also live off food and biomass that would otherwise be thrown away, says Collins, contributing to the circular economy, where resources are recycled and reused. Insects can be fed agricultural waste, such as the stems and stalks from plants that people don’t eat, or scraps of food waste. To complete the recycling chain, their excrement can be used as fertiliser for crops.
Insects are a nutrition-dense source of protein embraced by much of the world. Why are some of us so squeamish about eating them?
Starship has an explosive flight record, but SpaceX may finally be mastering the spaceship’s landing. That’s crucial to making it reusable.
Physics has long looked to harmony to explain the beauty of the Universe. But what if dissonance yields better insights?
Quantum physics is weird and counterintuitive. For this reason, the word ‘quantum’ has become shorthand for anything powerful or mystical, whether or not it has anything whatsoever to do with quantum mechanics. As a quantum physicist, I’ve developed a reflexive eyeroll upon hearing the word applied to anything outside of physics. It’s used to describe homeopathy, dishwasher detergents and deodorant.
Continue reading “Uniting the mysterious worlds of quantum physics and music” »
As India struggles to curb the spread of COVID-19 and step up vaccinations, experts have warned the country to prepare for future waves of the pandemic. It’s hoped that US support for a vaccine waiver will see results.
A prototype by Kratos was first to fly, but Boeing and General Atomics will also develop Skyborg air vehicles.
Many people with diabetes endure multiple, painful finger pricks each day to measure their blood glucose. Now, researchers reporting in ACS Sensors have developed a device that can measure glucose in sweat with the touch of a fingertip, and then a personalized algorithm provides an accurate estimate of blood glucose levels.
According to the American Diabetes Association, more than 34 million children and adults in the U.S. have diabetes. Although self-monitoring of blood glucose is a critical part of diabetes management, the pain and inconvenience caused by finger-stick blood sampling can keep people from testing as often as they should.
The researchers made a touch-based sweat glucose sensor with a polyvinyl alcohol hydrogel on top of an electrochemical sensor, which was screen-printed onto a flexible plastic strip. When a volunteer placed their fingertip on the sensor surface for 1 minute, the hydrogel absorbed tiny amounts of sweat. Inside the sensor, glucose in the sweat underwent an enzymatic reaction that resulted in a small electrical current that was detected by a hand-held device.
The release of the new Go FlyEase felt more exclusive than inclusive. Now, disabled people are voicing their concerns with how the sneaker was handled.
Deep-tech healthcare & energy investments for a sustainable future — dr. anil achyuta, investment director / founding member, TDK ventures.
Dr. Anil Achyuta is an Investment Director and a Founding Member at TDK Ventures, which is a deep-tech corporate venture fund of TDK Corporation, the Japanese multinational electronics company that manufactures electronic materials, electronic components, and recording and data-storage media.
