news 2023

Researchers have detected a new type of magnetism in an artificially produced material. The material becomes ferromagnetic through minimization of the kinetic energy of its electrons. For a magnet to stick to a fridge door, inside of it several physical effects need to work together perfectly. The magnetic moments of its electrons all point in the same direction, even if no external magnetic field forces them to do so.

Scientists from the Universidad Carlos III de Madrid (UC3M) and the IMDEA Materiales Institute have developed a new experimental technique in fragmentation tests to evaluate the energy absorption capacity in the event of impact of metallic structures manufactured using 3D printing. This technique, which is more flexible, simpler and faster than others currently used, makes it possible to test the mechanical performance of these materials as protective structures.

The LIRAS technique could speed up the development of acoustic lenses, impact-resistant films, and other futuristic materials. Metamaterials are products of engineering wizardry. They are made from everyday polymers, ceramics, and metals. And when constructed precisely at the microscale, in intricate architectures, these ordinary materials can take on extraordinary properties.

Luminous fast blue optical transients are characterized by their intense blue light and are amongst the brightest known optical phenomena in the universe. They evolve rapidly, reaching peak brightness and fading again in a matter of days, unlike supernovae which take weeks or months. Image credit: NOIRLab/NSF/AURA/M.

Developed by researchers, the first large-scale in-memory processor using 2D semiconductor materials could substantially cut the ICT sector's energy footprint. As information and communication technologies (ICT) process data, they convert electricity into heat. Already today, the global ICT ecosystem's CO2 footprint rivals that of aviation.

Thin flakes of graphite can be tuned to exhibit three important properties. MIT physicists have metaphorically turned graphite, or pencil lead, into gold by isolating five ultrathin flakes stacked in a specific order. The resulting material can then be tuned to exhibit three important properties never before seen in natural graphite.

A sophisticated device uses radio waves to determine whether states are really complying with nuclear weapons treaties When it comes to nuclear weapons, no state really wants to leave anything to chance. A small movement in nuclear weapons stocks can have a major impact. It is therefore important to monitor nuclear weapons treaties effectively and closely.

Offering the chemical industry an 'unparalleled possibility' for changing the future of chemical processes Liquid metals could be the long-awaited solution to "greening" the chemical industry, according to researchers who tested a new technique they hope can replace energy-intensive chemical engineering processes harking back to the early 20th century.

Euclid, the new space telescope launched by the ESA with the involvement of German researchers, has published its first color photographs from outer space. Never before has a telescope been able to produce such sharp astronomical images of such a wide expanse of sky while looking so deep into the distant universe.

A form of brain-inspired computing that exploits the intrinsic physical properties of a material to dramatically reduce energy use is now a step closer to reality, thanks to a new study led by UCL and Imperial College London researchers. Such an approach, known as physical reservoir computing, has until now been limited due to its lack of reconfigurability.

After more than a century, physicists aim to dethrone the tried-and-tested technology of the refrigerator, as cooling can be made more energy-efficient. The compressor technology used in today's refrigerators was invented more than a century ago. "The technology has been continuously optimized over the years, of course," says Daniel Hägele, physicist at Ruhr University Bochum, Germany.

Key Takeaways Researchers have developed a multipurpose, high-performance coating material that self-assembles from 2D nanosheets. The new material could significantly extend the shelf life of consumer products for electronics, energy storage, and health & safety applications. The material is also recyclable, enabling a sustainable manufacturing approach that could keep single-use packaging and electronics out of landfills.

An international team from science and industry has revolutionized the modelling and prediction of free energy in crystals. Their work on the new TRHu(ST) method, published in Nature , shows that the stability of crystal forms can be predicted reliably and cost-effectively under real temperature and humidity conditions.

The results open the door to exploring superconductivity and other exotic electronic states in three-dimensional materials. Electrons move through a conducting material like commuters at the height of Manhattan rush hour. The charged particles may jostle and bump against each other, but for the most part they're unconcerned with other electrons as they hurtle forward, each with their own energy.

The European Space Agency (ESA) mission Euclid, whose massive optical camera was built by an international team led by UCL researchers, has released its first full-colour images of the cosmos. This is the first time a telescope has been able to create such razor-sharp astronomical images across such a large patch of the sky, and looking so far into the distant Universe.

ESA's Euclid space mission unveils stunning full-colour images of the cosmos, setting a new standard for astronomical imaging precision By Jordan Flemming University Relations Today, the European Space Agency's (ESA) Euclid space mission reveals five of its first full-color images of the cosmos. For the first time, Euclid has harnessed the power to capture razor-sharp astronomical images across a vast expanse of the sky, delving deep into the distant universe.

The latest edition of the "Ranking of the World Scientists: World's Top 2% Scientists", known as the Stanford Ranking, which identifies the world's best researchers based on the citations of their

"Understanding the connection between electronic and ion transport properties in electrode-electrolyte interfaces at the molecular scale could enable new strategies to accelerate processes central to many renewable energy technologies, including hydrogen generation and utilisation." Researchers from the National Graphene Institute at the University of Manchester have discovered a way to use light to accelerate proton transport through graphene , which could revolutionise the way we generate hydrogen.

Yale's Priyamvada Natarajan and colleagues have identified the oldest known X-ray quasar - offering compelling proof of a concept Natarajan helped pioneer. Astronomers have found the oldest-known X-ray quasar in the universe - and its properties align exactly with predictions for a new class of distant objects made by Yale astronomer Priyamvada Natarajan and her research group.

With bonfire night on the horizon, scientists reveal just why fireworks are differently coloured and what this can teach us about stars in space. Elements commonly found in salts are used to make the colours in fireworks. The colours are caused when the elements are heated, causing them to release light in different colours, from bright blues to deep reds.