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Astronomy / Space Science - Physics - 06.12.2019
Physics - Electroengineering - 06.12.2019
Physics - Electroengineering - 06.12.2019 
Electronic map reveals ’rules of the road’ in superconductor
Band structure map exposes iron selenide's enigmatic electronic signature Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, Rice University physicists have drawn a detailed map that reveals the "rules of the road” for electrons both in normal conditions and in the critical moments just before the material transforms into a superconductor.
Physics - Chemistry - 05.12.2019
Chemistry - Physics - 05.12.2019 
First field measurements of laughing gas isotopes
Thanks to a newly developed laser spectrometer, Empa researchers can for the first time show which processes in grassland lead to nitrous oxide emissions. The aim is to reduce emissions of this potent greenhouse gas by gaining a better understanding of the processes taking place in the soil. Nitrous oxide (N2O, also known as laughing gas) is one of the most important greenhouse gases.
Astronomy / Space Science - Physics - 04.12.2019 
Closest-ever approach to the Sun gives new insights into the solar wind
The Parker Solar Probe spacecraft, which has flown closer to the Sun than any mission before, has found new evidence of the origins of the solar wind. NASA's Parker Solar Probe was launched in August 2018. Its first results are published today in a series of four papers in Nature , with Imperial College London scientists among those interpreting some of the key data to reveal how the solar wind is accelerated away from the surface of the Sun.
Environment - Physics - 04.12.2019
Physics - Chemistry - 04.12.2019 
Freeze Frame: Scientists Capture Atomic-Scale Snapshots of Artificial Proteins
Berkeley Lab scientists adapt microscopy technique to build and image peptoid nanosheets with unprecedented atomic precision P rotein-like molecules called "polypeptoids" (or "peptoids," for short) have great promise as precision building blocks for creating a variety of designer nanomaterials, like flexible nanosheets - ultrathin, atomic-scale 2D materials.
Physics - Materials Science - 02.12.2019 
When Solids and Liquids Meet: In Nanoscale Detail
Infrared technique at Berkeley Lab's Advanced Light Source probes active chemistry at the solid-liquid interface How a liquid interacts with the surface of a solid is important in batteries and fuel cells, chemical production, corrosion phenomena, and many biological processes. To better understand this solid-liquid interface, researchers at Berkeley Lab developed a platform to explore these interactions under real conditions ("in situ") at the nanoscale using a technique that combines infrared light with an atomic force microscopy (AFM) probe.
Physics - Materials Science - 29.11.2019 
Controlling the optical properties of solids with acoustic waves
Physicists from Switzerland, Germany, and France have found that large-amplitude acoustic waves, launched by ultrashort laser pulses, can dynamically manipulate the optical response of semiconductors. One of the main challenges in materials science research is to achieve high tunability of the optical properties of semiconductors at room temperature.
Earth Sciences - Physics - 28.11.2019
Chemistry - Physics - 27.11.2019 
An electron highway headed for methanol
Making methanol just got a lot easier, now that chemists at Yale have opened up a new electron highway. The discovery, published online Nov. 27 , finds a novel solution for two chemical tasks: producing methanol - a volatile, liquid fuel that is prized by industry - and removing carbon dioxide from the atmosphere.
Chemistry - Physics - 27.11.2019
Physics - Materials Science - 27.11.2019
Astronomy / Space Science - Physics - 25.11.2019 
Space research at KU Leuven: missions that inspire big dreams
Let's first state the obvious: the universe is endlessly fascinating. When the first ever picture of a black hole was released this spring, it easily made front pages.
Astronomy / Space Science - Physics - 25.11.2019 
Imperial among UK institutions building parts for new £30m neutrino detector
Researchers at Imperial are starting work on a huge new neutrino experiment, aiming to understand the origin and structure of the universe. The Deep Underground Neutrino Experiment (DUNE), to be assembled in the US, will have components designed and built by institutions across the UK, including Imperial.
Physics - Electroengineering - 22.11.2019 
New method for using spin waves in magnetic materials
Smaller, faster, more energy-efficient - this is the goal that developers of electronic devices have been working towards for years. In order to be able to miniaturize individual components of mobile phones or computers for example, magnetic waves are currently regarded as promising alternatives to conventional data transmission functioning by means of electric currents.
Physics - Computer Science / Telecom - 22.11.2019 
A "simulation booster" for nanoelectronics
Two research groups from ETH Zurich have developed a method that can simulate nanoelectronics devices and their properties realistically, quickly and efficiently. This offers a ray of hope for the industry and data centre operators alike, both of which are struggling with the (over)heating that comes with increasingly small and powerful transistors.
Astronomy / Space Science - Physics - 21.11.2019
Physics - Earth Sciences - 21.11.2019
Physics
Results 1 - 20 of 3838.
Analysis: A spacecraft is starting to unravel the sun’s biggest mysteries
NASA's Parker Solar Probe is going closer to the sun than any spacecraft has been before - Dr Daniel Verscharen (UCL Space & Climate Physics) writes about the findings so far. If you ask a child to paint a picture of the sun, you will most likely get a bright yellow circle on a piece of paper. This is actually quite accurate, given that the sun is a ball of hot gas and that its surface (called the photosphere) mostly shines in bright yellow light.
NASA's Parker Solar Probe is going closer to the sun than any spacecraft has been before - Dr Daniel Verscharen (UCL Space & Climate Physics) writes about the findings so far. If you ask a child to paint a picture of the sun, you will most likely get a bright yellow circle on a piece of paper. This is actually quite accurate, given that the sun is a ball of hot gas and that its surface (called the photosphere) mostly shines in bright yellow light.
In surprise breakthrough, scientists create quantum states in everyday electronics
After decades of miniaturization, the electronic components we've relied on for computers and modern technologies are now starting to reach fundamental limits. Faced with this challenge, engineers and scientists around the world are turning toward a radically new paradigm: quantum information technologies. Quantum technology, which harnesses the strange rules that govern particles at the atomic level, is normally thought of as much too delicate to coexist with the electronics we use every day in phones, laptops and cars.
After decades of miniaturization, the electronic components we've relied on for computers and modern technologies are now starting to reach fundamental limits. Faced with this challenge, engineers and scientists around the world are turning toward a radically new paradigm: quantum information technologies. Quantum technology, which harnesses the strange rules that govern particles at the atomic level, is normally thought of as much too delicate to coexist with the electronics we use every day in phones, laptops and cars.
Band structure map exposes iron selenide's enigmatic electronic signature Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, Rice University physicists have drawn a detailed map that reveals the "rules of the road” for electrons both in normal conditions and in the critical moments just before the material transforms into a superconductor.
SLAC scientists invent a way to see attosecond electron motions with an X-ray laser
SLAC Overview Our Mission, Vision & Values SLAC By The Numbers Director's Office Past SLAC Directors and Deputy Directors Wolfgang (Pief) K. H.
SLAC Overview Our Mission, Vision & Values SLAC By The Numbers Director's Office Past SLAC Directors and Deputy Directors Wolfgang (Pief) K. H.
Thanks to a newly developed laser spectrometer, Empa researchers can for the first time show which processes in grassland lead to nitrous oxide emissions. The aim is to reduce emissions of this potent greenhouse gas by gaining a better understanding of the processes taking place in the soil. Nitrous oxide (N2O, also known as laughing gas) is one of the most important greenhouse gases.
The Parker Solar Probe spacecraft, which has flown closer to the Sun than any mission before, has found new evidence of the origins of the solar wind. NASA's Parker Solar Probe was launched in August 2018. Its first results are published today in a series of four papers in Nature , with Imperial College London scientists among those interpreting some of the key data to reveal how the solar wind is accelerated away from the surface of the Sun.
Early climate modelers got global warming right, new report finds
Climate skeptics have long raised doubts about the accuracy of computer models that predict global warming, but it turns out that most of the early climate models were spot-on, according to a look-back by climate scientists at the University of California, Berkeley, Massachusetts Institute of Technology and NASA.
Climate skeptics have long raised doubts about the accuracy of computer models that predict global warming, but it turns out that most of the early climate models were spot-on, according to a look-back by climate scientists at the University of California, Berkeley, Massachusetts Institute of Technology and NASA.
Berkeley Lab scientists adapt microscopy technique to build and image peptoid nanosheets with unprecedented atomic precision P rotein-like molecules called "polypeptoids" (or "peptoids," for short) have great promise as precision building blocks for creating a variety of designer nanomaterials, like flexible nanosheets - ultrathin, atomic-scale 2D materials.
Infrared technique at Berkeley Lab's Advanced Light Source probes active chemistry at the solid-liquid interface How a liquid interacts with the surface of a solid is important in batteries and fuel cells, chemical production, corrosion phenomena, and many biological processes. To better understand this solid-liquid interface, researchers at Berkeley Lab developed a platform to explore these interactions under real conditions ("in situ") at the nanoscale using a technique that combines infrared light with an atomic force microscopy (AFM) probe.
Physicists from Switzerland, Germany, and France have found that large-amplitude acoustic waves, launched by ultrashort laser pulses, can dynamically manipulate the optical response of semiconductors. One of the main challenges in materials science research is to achieve high tunability of the optical properties of semiconductors at room temperature.
Underwater telecom cables make superb seismic network
The oceans are criss-crossed by telecommunications cables, as illustrated by this graphic predicting the fiber-optic cables that will be operational by 2021, many of them (yellow) owned by private companies like Google and Microsoft. These cables could serve a dual purpose as seismic stations to monitor earthquakes and fault systems over the 70% of Earth covered by water.
The oceans are criss-crossed by telecommunications cables, as illustrated by this graphic predicting the fiber-optic cables that will be operational by 2021, many of them (yellow) owned by private companies like Google and Microsoft. These cables could serve a dual purpose as seismic stations to monitor earthquakes and fault systems over the 70% of Earth covered by water.
Making methanol just got a lot easier, now that chemists at Yale have opened up a new electron highway. The discovery, published online Nov. 27 , finds a novel solution for two chemical tasks: producing methanol - a volatile, liquid fuel that is prized by industry - and removing carbon dioxide from the atmosphere.
Cutting nanoparticles down to size - new study
A new technique in chemistry could pave the way for producing uniform nanoparticles for use in drug delivery systems. Scientists have been investigating how to make better use of nanoparticles in medicine for several decades. Significantly smaller than an average cell, nanoparticles are more similar in size to proteins.
A new technique in chemistry could pave the way for producing uniform nanoparticles for use in drug delivery systems. Scientists have been investigating how to make better use of nanoparticles in medicine for several decades. Significantly smaller than an average cell, nanoparticles are more similar in size to proteins.
What protects killer immune cells from harming themselves?
White blood cells, which release a toxic potion of proteins to kill cancerous and virus-infected cells, are protected from any harm by the physical properties of their cell envelopes, find scientists from UCL and the Peter MacCallum Cancer Centre in Melbourne. Until now, it has been a mystery to scientists how these white blood cells - called cytotoxic lymphocytes - avoid being killed by their own actions and the discovery could help explain why some tumours are more resistant than others to recently developed cancer immunotherapies.
White blood cells, which release a toxic potion of proteins to kill cancerous and virus-infected cells, are protected from any harm by the physical properties of their cell envelopes, find scientists from UCL and the Peter MacCallum Cancer Centre in Melbourne. Until now, it has been a mystery to scientists how these white blood cells - called cytotoxic lymphocytes - avoid being killed by their own actions and the discovery could help explain why some tumours are more resistant than others to recently developed cancer immunotherapies.
Let's first state the obvious: the universe is endlessly fascinating. When the first ever picture of a black hole was released this spring, it easily made front pages.
Researchers at Imperial are starting work on a huge new neutrino experiment, aiming to understand the origin and structure of the universe. The Deep Underground Neutrino Experiment (DUNE), to be assembled in the US, will have components designed and built by institutions across the UK, including Imperial.
Smaller, faster, more energy-efficient - this is the goal that developers of electronic devices have been working towards for years. In order to be able to miniaturize individual components of mobile phones or computers for example, magnetic waves are currently regarded as promising alternatives to conventional data transmission functioning by means of electric currents.
Two research groups from ETH Zurich have developed a method that can simulate nanoelectronics devices and their properties realistically, quickly and efficiently. This offers a ray of hope for the industry and data centre operators alike, both of which are struggling with the (over)heating that comes with increasingly small and powerful transistors.
Experiment to increase understanding of the universe secures £30m
UCL scientists working to understand neutrinos and antimatter through DUNE (the Deep Underground Neutrino Experiment) will benefit from the UK's latest multi-million pound investment in the project. The DUNE project brings together more than 1,000 physicists from the UK and 31 countries from Asia, Europe and the Americas to build the world's most advanced neutrino observatory, which could lead to profound changes in our understanding of the universe.
UCL scientists working to understand neutrinos and antimatter through DUNE (the Deep Underground Neutrino Experiment) will benefit from the UK's latest multi-million pound investment in the project. The DUNE project brings together more than 1,000 physicists from the UK and 31 countries from Asia, Europe and the Americas to build the world's most advanced neutrino observatory, which could lead to profound changes in our understanding of the universe.
New Geochemistry Technique Yields Clues about Earth’s Earliest Days
Half a century ago, in lab nicknamed the "Lunatic Asylum" in the Charles Arms Laboratory of the Geological Sciences, the late Gerald Wasserburg constructed the first-ever digital mass spectrometer. That device, dubbed the Lunatic I, revolutionized the field of geochemistry by increasing by an order of magnitude the precision with which isotope ratios could be measured; isotopes are the "flavors" of elements and vary based on the number of neutrons they have in their atomic nuclei.
Half a century ago, in lab nicknamed the "Lunatic Asylum" in the Charles Arms Laboratory of the Geological Sciences, the late Gerald Wasserburg constructed the first-ever digital mass spectrometer. That device, dubbed the Lunatic I, revolutionized the field of geochemistry by increasing by an order of magnitude the precision with which isotope ratios could be measured; isotopes are the "flavors" of elements and vary based on the number of neutrons they have in their atomic nuclei.
