A method that combines screen-printable composite and metallic inks could make foldable electronics easier and cheaper to manufacture at industrial scales. These devices, developed at KAUST, can be mounted on various supports, including nonplanar surfaces, and could enable many Internet of Things applications. Next-generation technology such as automotive radars for self-driving cars, smart buildings and wearable sensors will depend more heavily on the high-frequency millimeter-wave band, including 5G. To date, large-scale manufacturing approaches to make foldable electronics have focused on…
Giant gas planet orbiting a dead star gives glimpse into the predicted aftermath of our sun’s demise. Astronomers have discovered the very first confirmed planetary system that resembles the expected fate of our solar system, when the Sun reaches the end of its life in about five billion years. The researchers detected the system using W. M. Keck Observatory on Maunakea in Hawaiʻi; it consists of a Jupiter-like planet with a Jupiter-like orbit revolving around a white dwarf star located…
Holey metalens! Metasurfaces are nanoscale structures that interact with light. Today, most metasurfaces use monolith-like nanopillars to focus, shape and control light. The taller the nanopillar, the more time it takes for light to pass through the nanostructure, giving the metasurface more versatile control of each color of light. But very tall pillars tend to fall or cling together. What if, instead of building tall structures, you went the other way? In a recent paper, researchers at the Harvard John…
Jefferson Lab and Fermilab experiments present new results on nucleon structure. Two independent studies have illuminated unexpected substructures in the fundamental components of all matter. Preliminary results using a novel tagging method could explain the origin of the longstanding nuclear paradox known as the EMC effect. Meanwhile, authors will share next steps after the recent observation of asymmetrical antimatter in the proton. Both groups will discuss their experiments at DOE’s Thomas Jefferson National Accelerator Facility and Fermilab during the 2021…
The prognosis for a cancer patient who undergoes surgery is better if the surgeon removes all of the tumor, but it can be hard to tell where a tumor ends and healthy tissue begins. Now, scientists report in ACS Sensors that they have developed a fluorescent spray that specifically lights up cancerous tissue so it can be identified readily and removed during surgery. Surgeons often use sight and touch to identify cancerous tissue, but this approach can miss small tumors, as well…
EPFL scientists have developed a topology-based method that forces microwave photons to travel along on way path, despite unprecedented levels of disorder and obstacles on their way. Topological insulators are materials whose structure forces photons and electrons to move only along the material’s boundary and only in one direction. These particles experience very little resistance and travel freely past obstacles such as impurities, fabrication defects, a change of signal’s trajectory within a circuit, or objects placed intentionally in the particles’…
An international research team led by Prof. LI Di and Dr. WANG Pei from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) caught an extreme episode of cosmic explosions from Fast Radio Burst (FRB) 121102, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). A total of 1,652 independent bursts were detected within 47 days starting Aug. 29, 2019 (UT). It is the largest set of FRB events so far, more than the number reported in all other publications combined….
When designing a light source, one typically restricts their aim to certain correlation properties. For example, in a single-mode laser, correlations can be found across the entire wavefront. However, optical cavities that support only a single mode are usually relatively difficult to manufacture. A cavity that supports multiple modes is easier to fabricate, but in such a laser the correlations vanish, depending on the number of modes present. “Both of these source types have their uses and in the past…
Research team including Göttingen University observes charged particles 70 percent faster than uncharged. Solar prominences hover above the visible solar disk like giant clouds, held there by a supporting framework of magnetic forces, originating from layers deep within the Sun. The magnetic lines of force are moved by ever-present gas currents – and when the supporting framework moves, so does the prominence cloud. A research team from the University of Göttingen and the astrophysics institutes at Paris, Potsdam and Locarno…
Multidisciplinary team of materials physicists and geophysicists combine theoretical predictions, simulations, and seismic tomography to find spin transition in the Earth’s mantle. The interior of the Earth is a mystery, especially at greater depths (> 660 km). Researchers only have seismic tomographic images of this region and, to interpret them, they need to calculate seismic (acoustic) velocities in minerals at high pressures and temperatures. With those calculations, they can create 3D velocity maps and figure out the mineralogy and temperature…
First results from a precision measurement of the neutron skin in a calcium nucleus to be announced at 2021 Fall Meeting of the APS Division of Nuclear Physics. A new high-precision measurement of the neutron skin in doubly magic calcium-48 may help shed light on proton-neutron interactions inside nuclei. This is the first highly robust electroweak measurement of the neutron skin in a medium-weight nucleus. The results from this new measurement, made by the 48Ca Radius EXperiment (CREX) collaboration at…
Unlikely, new study shows… New calculations show that a black hole slurping down a star may not have generated enough energy to launch a neutrino. In October 2019, a high-energy neutrino slammed into Antarctica. The neutrino, which was remarkably hard to detect, peaked astronomers’ interest: what could generate such a powerful particle? Researchers traced the neutrino back to a supermassive black hole that had just ripped apart and swallowed a star. Known as a tidal disruption event (TDE), AT2019dsg occurred just…
A new study from the University of Gothenburg opens the way for more effective microscopy, making it easier to research diseases. The study shows how artificial intelligence can be used to develop faster, cheaper and more reliable information about cells, while also eliminating the disadvantages from using chemicals in the process. Studying cells and their components is a cornerstone of biomedicine and pharmaceutical research and can provide information about the health of cells, responses to different medications or deviations in…
TU Freiberg analyses the microstructure of hard material layers in drill tips. Researchers of TU Bergakademie Freiberg cooperate with the Dresden Fraunhofer Institute for Ceramic Technologies and Systems (IKTS) and the Czech branch of the Dormer Pramet Company on the development of novel hard coatings for sustainable use in cutting tools. By working on the nanoscale, they modify the interfaces between individual thin layers in the coatings in order to improve their adhesion. When the drill tips are covered with…
The Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) and the Fraunhofer-Gesellschaft are funding five trilateral projects for the transfer of knowledge from DFG-funded research to industry. The alliance between universities, Fraunhofer institutes and companies is being supported with a total of around 4.5 million euros for the duration of three years. One of the projects is the “MEMS-based parametric amplifier for range optimization of wireless sensor networks”, in which the Technical University of Hamburg together with the Fraunhofer Institute for Photonic…
Bone screws and plates that dissolve on their own after a broken bone has healed promise to be of great benefit – they could save some patients from having to undergo follow-up surgery. A research team led by the Helmholtz-Zentrum Hereon has now used a 3D X-ray method to determine for the first time quantitatively how different of magnesium alloys dissolve over time under body-like conditions. The result provides indications of which materials are particularly suitable for certain types of…
Feedback
