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Electroengineering - Physics - 29.06.2021
Stretching changes the electronic properties of graphene
Stretching changes the electronic properties of graphene
The electronic properties of graphene can be specifically modified by stretching the material evenly, say researchers at the University of Basel. These results open the door to the development of new types of electronic components. Graphene consists of a single layer of carbon atoms arranged in a hexagonal lattice.

Physics - Materials Science - 29.06.2021
This Crystal Impurity Is Sheer Perfection
This Crystal Impurity Is Sheer Perfection
Scientists at Berkeley Lab, UC Berkeley design 3D-grown material that could speed up production of new technologies for smart buildings and robotics Crystallization is one of the most fundamental processes found in nature - and it's what gives minerals, gems, metals, and even proteins their structure.

Astronomy / Space Science - Physics - 29.06.2021
Black hole and neutron star merger detected for first time
Black hole and neutron star merger detected for first time
Scientists have, for the first time, picked up the ripples in space-time caused by the collision of a neutron star and a black hole. Two instances of this violent cosmic event have been detected using the Advanced LIGO and Virgo gravitational wave detectors, details of which have been published today in Astrophysical Journal Letters.

Astronomy / Space Science - Physics - 29.06.2021
LIGO-Virgo-KAGRA finds elusive mergers of black holes with neutron stars
For the first time, researchers have confirmed the detection of a collision between a black hole and a neutron star. In fact, the scientists detected not one but two such events occurring just 10 days apart in January 2020. The extreme events made splashes in space that sent gravitational waves rippling across at least 900 million light-years to reach Earth.

Astronomy / Space Science - Physics - 28.06.2021
The Hubble constant, explained
The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It gets its name from UChicago alum Edwin Hubble, who was first to calculate the constant from his measurements of stars in 1929.

Astronomy / Space Science - Physics - 28.06.2021
Stellar explosion in 1054 C.E. may have been a third flavor of supernova
Stellar explosion in 1054 C.E. may have been a third flavor of supernova
Astronomers have found convincing evidence that supernovae come in a third flavor, powered by a long-suspected explosive mechanism that may explain a bright supernova humans observed 1,000 ago and that birthed the beautiful Crab Nebula. The evidence is an exploding star observed in 2018, the first that fits all six criteria for a hypothesized type of supernova called an electron-capture supernova.

Astronomy / Space Science - Physics - 25.06.2021
Could dark matter be behind mysterious, supermassive black holes in the early universe’
UChicago, UC Riverside scientists offer theory to explain the origin of monsters of the cosmos When astronomers use telescopes to look back in time-toward objects in the universe whose light is only now reaching earth after billions of years-they see something odd. Black holes, big ones, that already existed when the universe was still very young.

Earth Sciences - Physics - 24.06.2021
Rock crystals from the deep give microscopic clues to earthquake ground movements
Rock crystals from the deep give microscopic clues to earthquake ground movements
Microscopic imperfections in rock crystals deep beneath Earth's surface play a deciding factor in how the ground slowly moves and resets in the aftermath of major earthquakes, says new research involving the University of Cambridge.

Chemistry - Physics - 24.06.2021
Lowering the carbon footprint of fabric and plastic manufacturing
Manufacturing of plastics and fabrics could become greener and have a lower carbon footprint, thanks to a new catalyst architecture developed by a team of experts including UCL academics. Propylene, produced from propane, is critical to the manufacture of plastics, fabrics and other chemicals, and is in short supply.

Materials Science - Physics - 24.06.2021
Nano-Architected Material Resists Impact Better Than Kevlar
Thinner than a human hair, new material can absorb impacts from microparticles traveling at supersonic speeds Engineers at Caltech, MIT, and ETH Zürich have developed a nano-architected material made from tiny carbon struts that is, pound for pound, more effective at stopping a projectile than Kevlar, a material commonly used in personal protective gear.

Materials Science - Physics - 23.06.2021
Low-cost imaging technique shows how smartphone batteries could charge in minutes
Low-cost imaging technique shows how smartphone batteries could charge in minutes
Researchers have developed a simple lab-based technique that allows them to look inside lithium-ion batteries and follow lithium ions moving in real time as the batteries charge and discharge, something which has not been possible until now. This technique could be an important piece of the puzzle in the development of next-generation batteries Christoph Schnedermann Using the low-cost technique, the researchers identified the speed-limiting processes which, if addressed, could enable the batteries in most smartphones and laptops to charge in as little as five minutes.

Physics - Materials Science - 23.06.2021
Argonne National Laboratory celebrates 75 years of scientific discovery
The nation's first national lab continues to make breakthroughs across science, engineering Argonne National Laboratory traces its birth from a secret mission-the Manhattan Project during World War II-to create the world's first self-sustaining nuclear chain reaction.

Chemistry - Physics - 22.06.2021
Producing hydrogen using less energy
Producing hydrogen using less energy
International research team describes complete reaction path for electrocatalytic hydrogen generation The way in which a compound inspired by nature produces hydrogen has now been described in detail for the first time by an international research team from the University of Jena and the University of Milan-Bicocca.

Astronomy / Space Science - Physics - 22.06.2021
Nightside radio could help reveal exoplanet details
Nightside radio could help reveal exoplanet details
Rice team enhances models that will detect magnetospheres in distant solar systems We can't detect them yet, but radio signals from distant solar systems could provide valuable information about the characteristics of their planets. A paper by Rice scientists describes a way to better determine which exoplanets are most likely to produce detectable signals based on magnetosphere activity on exoplanets' previously discounted nightsides.

Earth Sciences - Physics - 21.06.2021
What causes earthquake foreshocks' | Stanford News
What causes earthquake foreshocks’ | Stanford News
Because foreshocks precede larger quakes, they have long presented the tantalizing prospect of warning of potentially damaging earthquakes. But to date, they have only been recognized in hindsight, and scientists for decades have sought to understand the physical processes that drive them. Computer modeling by Stanford geophysicists finds answers in the complex geometry of faults.

Physics - Chemistry - 21.06.2021
'Flashed' nanodiamonds are just a phase
’Flashed’ nanodiamonds are just a phase
Rice produces fluorinated nanodiamond, graphene, concentric carbon via flash Joule heating Diamond may be just a phase carbon goes through when exposed to a flash of heat, but that makes it far easier to obtain. The Rice University lab of chemist James Tour is now able to "evolve" carbon through phases that include valuable nanodiamond by tightly controlling the flash Joule heating process they developed 18 months ago.

Physics - Materials Science - 21.06.2021
Solar energy collectors grown from seeds
Engineers create seeds for growing near-perfect 2D perovskite crystals Rice University engineers have created microscopic seeds for growing remarkably uniform 2D perovskite crystals that are both stable and highly efficient at harvesting electricity from sunlight. Rice University chemical engineering graduate student Siraj Sidhik holds a container of 2D perovskite "seeds” (left) and a smaller vial containing a solution of dissolved seeds that can be used to produce thin films for use in highly efficient optoelectronic devices like high efficiency solar panels.

Astronomy / Space Science - Physics - 20.06.2021
What the Muon g-2 results mean for how we understand the universe
Experiment opens up field for new physics, say Fermilab, UChicago scientists The news that muons have a little extra wiggle in their step sent word buzzing around the world this spring.  The Muon g-2 experiment hosted at Fermi National Accelerator Laboratory  announced April 7  that they had measured a particle called a muon behaving slightly differently than predicted in their giant accelerator.

Physics - 18.06.2021
Atomic-scale tailoring of graphene approaches macroscopic world
Atomic-scale tailoring of graphene approaches macroscopic world
Properties of materials are often defined by imperfections in their atomic structure, especially when the material itself is just one atom thick, such as graphene. Researchers at the University of Vienna have now developed a method for controlled creation of such imperfections into graphene at length scales approaching the macroscopic world.

Physics - Materials Science - 17.06.2021
Tailored laser fields reveal properties of transparent crystals
Tailored laser fields reveal properties of transparent crystals
Research team led by the University of Göttingen investigates surface magnetisation The surface of a material often has properties that are very different from the properties within the material. For example, a non-conducting crystal, which actually exhibits no magnetism, can show magnetisation restricted to its surface because of the way the atoms are arranged there.
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