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Physics - 27.03.2020
Quantum leap for photon entanglement could revolutionise secure communications
A breakthrough in the development of quantum-enhanced optical systems could pave the way for advances in encryption, communication and measurement, scientists say. In a new paper published today in the journal Science Advances, a group of researchers, led by Matteo Clerici at the University of Glasgow's James Watt School of Engineering and colleagues from the UK, Japan and Germany, demonstrates a new method of generating and detecting quantum-entangled photons at a wavelength of 2.1 micrometres.

Physics - Electroengineering - 27.03.2020
Energy-harvesting design aims to turn Wi-Fi signals into usable power
Energy-harvesting design aims to turn Wi-Fi signals into usable power
Device for harnessing terahertz radiation might enable self-powering implants, cellphones, other portable electronics. Any device that sends out a Wi-Fi signal also emits terahertz waves -electromagnetic waves with a frequency somewhere between microwaves and infrared light. These high-frequency radiation waves, known as "T-rays," are also produced by almost anything that registers a temperature, including our own bodies and the inanimate objects around us.

Astronomy / Space Science - Physics - 26.03.2020
New Technique Looks for Dark Matter Traces in Dark Places
New Technique Looks for Dark Matter Traces in Dark Places
Study knocks down some theories for the origin of a mysterious light signature that has puzzled physicists for years So far, the only direct evidence we have for the existence of dark matter is through gravity-based effects on the matter we can see. And these gravitational effects are so pronounced that we know it must make up about 85 percent of all matter in the universe.

Materials Science - Physics - 25.03.2020
Neural networks facilitate optimization in the search for new materials
Neural networks facilitate optimization in the search for new materials
Sorting through millions of possibilities, a search for battery materials delivered results in five weeks instead of 50 years. When searching through theoretical lists of possible new materials for particular applications, such as batteries or other energy-related devices, there are often millions of potential materials that could be considered, and multiple criteria that need to be met and optimized at once.

Physics - Life Sciences - 25.03.2020
Giant cavity in key tuberculosis molecule
SLAC Overview Our Mission, Vision & Values SLAC By The Numbers Director's Office Past SLAC Directors and Deputy Directors Wolfgang (Pief) K. H.

Physics - Electroengineering - 25.03.2020
A nanoscale device that can see through walls
A nanoscale device that can see through walls
Researchers at EPFL have developed a nanodevice that operates more than 10 times faster than today's fastest transistors, and about 100 times faster than the transistors you have on your computers. This new device enables the generation of high-power terahertz waves. These waves, which are notoriously difficult to produce, are useful in a rich variety of applications ranging from imaging and sensing to high-speed wireless communications.

Materials Science - Physics - 24.03.2020
Activating palladium catalysis by light: teaching an old transition metal new tricks
Activating palladium catalysis by light: teaching an old transition metal new tricks
In the production of compounds, chemists have the fundamental goal of finding strategies that are most selective and avoid waste products. Breakthroughs in this area serve, among other things, to drive industrial innovation and drug development. In this context, allylic substitution reactions using catalysts made of so-called transition metals have already led to significant advances in science.

Physics - Life Sciences - 23.03.2020
X-ray imaging Reveals Insights into a Natural Mosquito-Killing Compound
A mosquito-targeting toxin produced by bacteria could lead to safer and more effective anti-mosquito products Many of the chemicals used to deter or eliminate disease-carrying mosquitoes can pollute ecosystems and drive the evolution of even more problematic, insecticide-resistant species - but thankfully, we may have better options soon.

Astronomy / Space Science - Physics - 19.03.2020
New data tests 'theory of everything'
New data tests ’theory of everything’
One of the biggest ideas in physics is the possibility that all known forces, particles, and interactions can be connected in one framework. String theory is arguably the best-known proposal for a 'theory of everything' that would tie together our understanding of the physical universe. If these particles are eventually detected it would change physics forever Christopher Reynolds Despite having many different versions of string theory circulating throughout the physics community for decades, there have been very few experimental tests.

Physics - 19.03.2020
Dancing electrons solve a puzzle
Dancing electrons solve a puzzle
Physicists use extreme infrared laser pulses to reveal frozen electron waves in magnetite Magnetite is the oldest magnetic material known to humans, yet researchers are still mystified by certain aspects of its properties.For example, when the temperature is lowered below 125 kelvins, magnetite changes from a metal to an insulator, its atoms shift to a new lattice structure, and its charges form a complicated ordered pattern.

Life Sciences - Physics - 19.03.2020
High-speed microscope captures fleeting brain signals
Electrical and chemical signals flash through our brains constantly as we move through the world, but it would take a high-speed camera and a window into the brain to capture their fleeting paths. University of California, Berkeley, investigators have now built such a camera: a microscope that can image the brain of an alert mouse 1,000 times a second, recording for the first time the passage of millisecond electrical pulses through neurons.

Physics - Chemistry - 19.03.2020
Nature-Inspired Green Energy Technology Clears Major Development Hurdle
Nature-Inspired Green Energy Technology Clears Major Development Hurdle
Scientist Heinz Frei has spent decades working toward building an artificial version of one of nature's most elegant and effective machines: the leaf. Frei, and many other researchers around the world, seek to use photosynthesis - the sunlight-driven chemical reaction that green plants and algae use to convert carbon dioxide (CO2) into cellular fuel - to generate the kinds of fuel that can power our homes and vehicles.

Life Sciences - Physics - 18.03.2020
Researchers develop new theory to explain random movement of particles in fluids
Researchers develop new theory to explain random movement of particles in fluids
Mathematicians have developed a new theory to explain the strange, loopy motions seen in 'passive' particles immersed in 'active' fluids. The theory could help researchers understand how microorganisms forage for nutrients, and how randomness arises in real-life, out-of-equilibrium systems like financial markets.

Astronomy / Space Science - Physics - 18.03.2020
Path to Razor-Sharp Black Hole Images
Last April, the Event Horizon Telescope (EHT) sparked international excitement when it unveiled the first image of a black hole. Today, a team of researchers have published new calculations that predict a striking and intricate substructure within black hole images from extreme gravitational light bending.

Physics - Chemistry - 18.03.2020
Molecular movies reveal the subtle, complex ways a simple molecule can shimmy and fly apart
SLAC Overview Our Mission, Vision & Values SLAC By The Numbers Director's Office Past SLAC Directors and Deputy Directors Wolfgang (Pief) K. H.

Chemistry - Physics - 18.03.2020
Chemistry: Access to forbidden rings
Chemistry: Access to forbidden rings
Researchers from the University of Geneva have developed a new method for creating chains of molecular rings with unparalleled sophistication. Cyclic molecules are everywhere, and everything around us stems from the way they are assembled: not just taste, colour and smell but also (for example) pharmaceutical drugs.

Chemistry - Physics - 18.03.2020
New sensor could help prevent food waste
Monitoring the plant hormone ethylene could reveal when fruits and vegetables are about to spoil. As flowers bloom and fruits ripen, they emit a colorless, sweet-smelling gas called ethylene. MIT chemists have now created a tiny sensor that can detect this gas in concentrations as low as 15 parts per billion, which they believe could be useful in preventing food spoilage.

Materials Science - Physics - 16.03.2020
Deep learning for mechanical property evaluation
New technique allows for more precise measurements of deformation characteristics using nanoindentation tools. A standard method for testing some of the mechanical properties of materials is to poke them with a sharp point. This "indentation technique" can provide detailed measurements of how the material responds to the point's force, as a function of its penetration depth.

Earth Sciences - Physics - 16.03.2020
A deep dive into the upward mobility of rocks
Yale geologists have identified the deepest pieces of Earth's crust ever found in the United States or Canada - in the rolling hills of northern Connecticut. Tiny bits of quartz and other minerals, inside garnet crystals, tell the story of a tectonic escalator ride that started 100 miles below Earth's surface, some 400 million years ago.

Physics - Computer Science / Telecom - 13.03.2020
New microscopy technique helps pictures tell a thousand words
A new imaging method combined with machine learning uncovers previously hidden information in micrographs of biological cells to reveal quantitative information of gene expression levels. Researchers from the University of Glasgow's James Watt School of Engineering and School of Computing Science describe in a paper published today how they have used image analysis and machine learning as a tool to directly determine the gene activity in single cells.
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