What new materials are there?

[bobbymike]

Advanced masking technology enables new applications for metasurface optics

Optics researchers at Lawrence Livermore National Laboratory (LLNL) have refined their novel metasurface process to create taller features without increasing feature-to-feature spacing, an advance that unlocks exciting new design possibilities.

www.llnl.gov

 

[bobbymike]

Physicists discover a new switch for superconductivity

An MIT study sheds surprising light on how certain superconductors undergo a “nematic transition” — unlocking new, superconducting behavior. The results could help identify unconventional superconducting materials.

news.mit.edu

 

[publiusr]

Just this morning--a phys.org story involving hydrogen storage via perovskites...also used in solar cells.

optics

Scientists reveal how light behaves in formless solids

For a long time, it was thought that amorphous solids do not selectively absorb light because of their disordered atomic structure. However, a new uOttawa study disproves this theory and shows that amorphous solids actually exhibit dichroism, meaning that they selectively absorb light of...

phys.org

Reimagining electron microscopy: Bringing high-end resolution to lower-cost microscopes

Researchers at the University of Illinois at Urbana-Champaign have shown for the first time that expensive aberration-corrected microscopes are no longer required to achieve record-breaking microscopic resolution.

phys.org

Ultra-compact head-mounted fluorescence microscopes for neuroscience studies

Research groups led by Prof. Bi Guoqiang, University of Science and Technology of China (USTC), and Prof. Zhou Pengcheng from Shenzhen Institutes of Advanced Technology of Chinese Academy of Chinese proposed a design for ultra-compact head-mounted fluorescence microscopes, which were applied to...

phys.org

Printing the future: Tailoring chemistry for inorganic 3D micro-optics

In a recent publication in the journal Trends in Chemistry, researchers from the University of Twente delve into the potential of 3D printing ceramics in micro-optics. These tiny ceramic structures can potentially be used to generate light and store information. "Let's make ceramics so small...

phys.org

Light stimulates a new twist for synthetic chemistry

Molecules that are induced by light to rotate bulky groups around central bonds could be developed into photo-activated bioactive systems, molecular switches, and more.

phys.org

All-light communication network bridges space, air and sea for seamless connectivity

Researchers have developed an all-light communication network that enables seamless connectivity across space, air, and underwater environments. The new network design combines different types of light sources to ensure connectivity no matter the environment.

techxplore.com

Researchers develop world-leading microwave photonics chip for high-speed signal processing

A research team led by Professor Wang Cheng from the Department of Electrical Engineering (EE) at City University of Hong Kong (CityUHK) has developed a world-leading microwave photonic chip that is capable of performing ultrafast analog electronic signal processing and computation using optics.

phys.org

More

New, more biocompatible materials for bioelectronic applications

Bioelectronics is a field of research in which biology and electronics converge. In medicine, for example, an external electric current is used to cure or monitor diseases of the nervous system, and also to monitor biomarkers in situ. Devices made of conductive materials are used for these...

phys.org

A physical model to quantify the quality of stones selected as tools by Stone Age hunter–gatherers

Early hunter–gatherers from the Middle Stone Age in southern Africa were selecting the most suitable material available for stone tools and spearheads more than 60,000 years ago, according to a study by Dr. Patrick Schmidt from the University of Tübingen's Early Prehistory and Quaternary Ecology...

phys.org

Movies of ultrafast electronic circuitry in space and time

Researchers at the University of Konstanz have successfully filmed the operations of extremely fast electronic circuitry in an electron microscope at a bandwidth of tens of terahertz. The study is published in Nature Communications.

techxplore.com

 

[publiusr]

Useful for starwisps?

Toward crack-resistant nanoparticle-based latex films

Synthetic polymer materials, such as plastics and rubbers, have become ubiquitous in our daily lives. It is, therefore, essential to ensure that they are safe, durable, and sustainable. This is especially true for synthetic latex films, which are widely used in packaging, biomedicine, and...

phys.org

The process involves using a UV laser to precisely control the characteristics of 2D pattern on a specially formulated donor material which upon interactions with the laser beam forms magnetic particle imbedded graphene, resulting in a highly functional ultra-wideband (1.56–18.3GHz) and wide angle microwave absorption metamaterial, which could potentially be applied in automatic and roll-to-roll mass production.

A two-fer sail?

Graphene

Engineers reveal the secrets behind green graphene

When Ange Nzihou, an expert in converting society's waste into valuable products, visited Princeton in 2022, he brought with him a technique to transform waste biomass into graphene, a material with many uses from batteries to solar cells. He knew his approach using a nontoxic iron catalyst...

phys.org

New display

Super flexible composite semiconductors for next-gen printed displays

Scientists at the Department of Materials Engineering, Indian Institute of Science (IISc), have developed a super flexible, composite semiconductor material that may have applications in next-generation flexible or curved displays, foldable phones and wearable electronics.

techxplore.com

Burning fuels study and turbulence

Laser experiments reveal how high voltage affects charged ions in burning fuel

A burning flame is full of charged particles that can be affected by an electric field. KAUST researchers have now studied the use of high voltages to control these particles, which could potentially reduce soot formation and improve a flame's stability.

phys.org

80-year-old principles incompletely explain turbulent flows, study shows

Experiments at the unique wind tunnel of the Max Planck Institute for Dynamics and Self-Organization (MPI-DS) in Göttingen show that laws formulated more than 80 years ago and their extensions only incompletely explain turbulent flows.

phys.org

Scientists move toward engineering living matter by manipulating movement of microparticles

A team of scientists has devised a system that replicates the movement of naturally occurring phenomena, such as hurricanes and algae, using laser beams and the spinning of microscopic rotors.

phys.org

protective foam advances

Breakthrough in material design will help football players, car occupants and hospital patients

The discovery that football players were unknowingly acquiring permanent brain damage as they racked up head hits throughout their professional careers created a rush to design better head protection. One of these inventions is nanofoam, the material on the inside of football helmets.

phys.org

Electronics

New superconductors can be built atom by atom, researchers show

The future of electronics will be based on novel kinds of materials. Sometimes, however, the naturally occurring topology of atoms makes it difficult for new physical effects to be created. To tackle this problem, researchers at the University of Zurich have now successfully designed...

phys.org

Scientists propose new design to implement highly directional single-photon source

A team of researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO) of Barcelona has proposed a new design to implement highly directional single-photon sources, which constitutes an improvement over currently existing quantum technologies. The work is...

phys.org

New high-power thermoelectric device may provide cooling in next-gen electronics

Next-generation electronics will feature smaller and more powerful components that require new solutions for cooling. A new thermoelectric cooler developed by Penn State scientists greatly improves the cooling power and efficiency compared to current commercial thermoelectric units and may help...

techxplore.com

New material could hold key to reducing energy consumption in computers and electronics

A University of Minnesota Twin Cities team has, for the first time, synthesized a thin film of a unique topological semimetal material that has the potential to generate more computing power and memory storage while using significantly less energy. The researchers were also able to closely study...

techxplore.com

Next-generation flow battery design sets records

A common food and medicine additive has shown it can boost the capacity and longevity of a next-generation flow battery design in a record-setting experiment.

techxplore.com

Engineering dual carriageways for signals: Research expands possibilities for more flexible signaling devices

Routing signals and isolating them against noise and back-reflections are essential in many practical situations in classical communication as well as in quantum processing. In a theory-experimental collaboration, a team led by Andreas Nunnenkamp from the University of Vienna and Ewold Verhagen...

phys.org

Physicists demonstrate sign reversal of the Josephson diode effect

Physicists at the University of Regensburg (UR) led by the research groups of Professor Dr. Christoph Strunk / Dr. Nicola Paradiso and Professor Dr. Jaroslav Fabian made an exciting discovery: In their publication just published in Nature Nanotechnology, the research teams experimentally...

phys.org

New material shows promise for next-generation memory technology

Phase change memory is a type of nonvolatile memory that harnesses a phase change material's (PCM) ability to shift from an amorphous state, i.e., where atoms are disorganized, to a crystalline state, i.e., where atoms are tightly packed close together. This change produces a reversible...

phys.org

2D metal contacts stop transistor leakage currents in their tracks

Computers, despite all their apparent complexity, are basically just a large number of electronic switches, flicking on and off in the right order to process digital information. Semiconductor technology has made these switches very small and incredibly fast.

techxplore.com

Investigating interactions at molecular junctions for novel electronic devices

The structure of a molecular junction with noncovalent interaction plays a key role in electron transport, reveals a recent study conducted by researchers at Tokyo Tech. Through simultaneous surface-enhanced Raman scattering and current–voltage measurements, they found that a single dimer...

phys.org

Advancing toward optimal sampling: The zenith of data analysis

The world witnessed a monumental face-off between human intelligence and artificial intelligence in March 2016. The computer program AlphaGo honed its skills from a substantial database and emerged victorious against a human opponent in Go, a game renowned for its complexity in calculating...

techxplore.com

Thermal cloak

Thermal cloak passively keeps electric vehicles cool in the summer and warm in the winter

When an electric vehicle is parked outside, its temperature can swing wildly from day to night and season to season, which can lead to deterioration of the battery. To dampen these fluctuations and extend the battery's lifespan, researchers have designed an all-season thermal cloak that can cool...

techxplore.com

virtual factories

Europe looks to virtual factories in new industrial revolution

EU manufacturers are increasingly embracing digital technologies to improve agility. A plant that makes electric shavers in the northern Dutch town of Drachten is gearing up for a test meant to help European industry thrive in increasingly competitive international markets.

techxplore.com

For ice

New radar technique lets scientists probe invisible ice sheet region on Earth and icy worlds

Scientists at the University of Texas Institute for Geophysics (UTIG) have developed a radar technique that lets them image hidden features within the upper few feet of ice sheets. The researchers behind the technique said that it can be used to investigate melting glaciers on Earth as well as...

phys.org

The Arch deconstructed

Researcher turns one of the basic rules of construction upside down

An Aston University researcher has turned one of the basic rules of construction on its head. For centuries a hanging chain has been used as an example to explain how masonry arches stand.

techxplore.com

Look out

Generative AI 'fools' scientists with artificial data, bringing automated data analysis closer

The same AI technology used to mimic human art can now synthesize artificial scientific data, advancing efforts toward fully automated data analysis.

techxplore.com

 

[publiusr]

LionGlass

https://www.psu.edu/news/research/story/new-glass-cuts-carbon-footprint-nearly-half-and-10x-more-damage-resistant/

Scientists create material 10 times stronger and more eco-friendly than traditional glass

LionGlass reduces energy consumption by approximately 30 percent due to its lower melting temperatures.

studyfinds.org

 

[Rhinocrates]

Progress in biomimicry from expensive and often impractical form to new, deeper innovation with materials and construction.

View: https://www.youtube.com/watch?v=_KowHG5Wbgk&t=6s

 

[Michel Van]

have they or din't have they ?

View: https://www.youtube.com/watch?v=WV2AexANG34


the Paper about it

https://arxiv.org/pdf/2307.12008.pdf

the harsh realty:

 

[publiusr]

Space materials

The amazing new materials that hold the key to new space discoveries

Space is a dangerous place. From micro-meteorites and electromagnetic interference to fires in space and extreme heat and cold, we need to develop new materials to enable the next generation of space travel and intergalactic travel.

phys.org

Very tough glass at small size

Researchers build a DNA structure and coat it with glass, creating a very low density, very strong material

Materials that are both strong and lightweight could improve everything from cars to body armor. But usually, the two qualities are mutually exclusive. Now, University of Connecticut researchers and colleagues have developed an extraordinarily strong, lightweight material using two unlikely...

phys.org

Composites and such

A novel approach for balancing properties in composite materials

Dr. Amir Asadi, an assistant professor in the Department of Engineering Technology and Industrial Distribution at Texas A&M University, is making groundbreaking strides in the field of composite materials. His research explores embedding patterned nanostructures composed of multiple materials...

phys.org

Study signals new era of environment-friendly programmable bioelectronics

Researchers have created a unique microscopic toolkit of "green" tunable electrical components, paving the way for a new generation of bioelectronic devices and sensors.

phys.org

New research explores durability of 2D hybrid materials

New research has unveiled the fatigue resistance of 2D hybrid materials. These materials, known for their low cost and high performance, have long-held promise across semiconductor fields. However, their durability under cyclic loading conditions remained a mystery—until now.

phys.org

A butterfly's first flight inspires a new way to produce force and electricity

The wings of a butterfly are made of chitin, an organic polymer that is the main component of the shells of arthropods like crustaceans and other insects. As a butterfly emerges from its cocoon in the final stage of metamorphosis, it will slowly unfold its wings into their full grandeur.

phys.org

Solar battery and more

Solar batteries: A new material makes it possible to simultaneously absorb light and store energy

A collaborative effort between the University of Cordoba and the Max Planck Institute for Solid State Research (Germany) is making progress on the design of a solar battery made from an abundant, non-toxic and easily synthesized material composed of 2D carbon nitride. The work is published in...

techxplore.com

Better energy harvesting with 'law-breaking' device

If you take an object and set it out in the sun, it will begin to warm up. This is because it is absorbing energy from the sun's rays and converting that energy to heat. If you leave that object outside, it will continue getting warmer, but only to a point. A sunbather lying on a beach won't...

phys.org

Imaging shows how solar-powered microbes turn carbon dioxide into bioplastic

When considering ways to sustainably generate environmentally friendly products, bacteria might not immediately spring to mind.

phys.org

Tracking subs and other tech

Reinforcement learning allows underwater robots to locate and track objects underwater

A research team has shown for the first time that reinforcement learning—i.e., a neural network that learns the best action to perform at each moment based on a series of rewards—allows autonomous vehicles and underwater robots to locate and carefully track marine objects and animals.

techxplore.com

Researchers successfully train a machine learning model in outer space for the first time

For the first time, researchers have trained a machine learning model in outer space, on board a satellite. This achievement could enable real-time monitoring and decision making for a range of applications, from disaster management to deforestation.

techxplore.com

Metals and cracks

Some alloys don't change size when heated, and we now know why

Nearly every material, whether it is solid, liquid, or gas, expands when its temperature goes up and contracts when its temperature goes down. This property, called thermal expansion, makes a hot air balloon float, and the phenomenon has been harnessed to create thermostats that automatically...

phys.org

New discovery shows tensile cracks can shatter classical speed limits, approach near-supersonic velocities

Researchers at the Racah Institute of Physics, Hebrew University of Jerusalem, have made a discovery that challenges the conventional understanding of fracture mechanics. The team, led by Dr. Meng Wang, Dr. Songlin Shi, and Prof. Jay Fineberg, has experimentally demonstrated the existence of...

phys.org

Imaging

Ghost-busting heat-assisted detection and ranging brings clarity to thermal imaging

It may not be too long before autonomous vehicles rule the roads. Despite a few widely reported mishaps, autonomous vehicles (AVs) are considered as safe or safer than human drivers in many respects.

techxplore.com

Diffractive networks enable quantitative phase imaging (QPI) through random diffusers

For decades, imaging weakly scattering phase objects such as cells has been an active area of research across various fields, including biomedical sciences. One common approach uses chemical stains or fluorescent tags to bring image contrast to weakly scattering objects, but it requires...

phys.org

New high-speed imaging method captures 3D details of combustion flames

Researchers have developed a new method for capturing the complex behavior of turbulent flames produced during combustion. Insights provided by this high-speed 3D imaging approach could be used to develop more efficient and cleaner combustion systems for cars, airplanes, factories and power plants.

phys.org

Scientists realize optical phased array calibration via pointwise optimization

An optical phased array (OPA) is a nonmechanical beam-steering control device with high directivity and deflection efficiency. Due to its high resolution, fast response, and absence of inertia, the OPA is widely applied in LiDAR, free-space optical communication, multi-beamforming and many other...

phys.org

Novel Raman technique breaks through 50 years of frustration

Raman spectroscopy—a chemical analysis method that shines monochromatic light onto a sample and records the scattered light that emerges—has caused frustration among biomedical researchers for more than half a century. Due to the heat generated by the light, live proteins are nearly destroyed...

phys.org

Enhancing image quality with broadband achromatic and polarization-insensitive metalenses

Precise control of light is a crucial requirement in optical imaging, sensing, and communication. Traditional lenses employed for the purpose have limitations, necessitating more precise and compact solutions. To address this need, researchers have developed metalenses, ultrathin lenses...

phys.org

Physicists and doctors develop new radiation-free imaging technique

Imaging techniques such as computed tomography, magnetic resonance imaging, positron emission tomography and ultrasound have become indispensable in the medical world. Each method not only opens unique insights into people's insides, but also allows physicians to draw conclusions about defects...

medicalxpress.com

Healing power of light: Research team advances clear vision for eye repair

An injectable biomaterial activated by pulses of low-energy blue light has tremendous potential for on-the-spot repair to the domed outer layer of the eye, a team of University of Ottawa researchers and their collaborators have revealed.

medicalxpress.com

Self-powered and broadband opto-sensor with bionic visual adaptation function

Recently, an artificial visual device with integrated visual adaptation functions was proposed by Professor Xu Haiyang's group from Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, China.

phys.org

Research group publish open-source 3D structured illumination microscopy reconstruction platform

Structured illumination microscopy (SIM) has emerged as the most powerful super-resolution technique for live cell imaging, owing to its inherent advantages of high speed, low phototoxicity, and compatibility with various dyes. With the advancement of SIM, researchers have proposed a range of...

phys.org

Physics informed supervised learning framework could make computational imaging faster

Computational imaging techniques are growing more popular, but the large number of measurements they require often lead to slow speeds or damage to biological samples. A newly developed physics-informed variational autoencoder (P-VAE) framework could help speed up computational imaging by using...

phys.org

Characterizing atomic defects in 2D materials to determine suitability as quantum emitters

The term molybdenum disulfide may sound familiar to some car drivers and mechanics. No wonder: the substance, discovered by U.S. chemist Alfred Sonntag in the 1940s, is still used today as a high-performance lubricant in engines and turbines, but also for bolts and screws.

phys.org

https://phys.org/news/2023-07-space-geodetic-reveal-variations-earth.html

https://phys.org/news/2023-07-machine-vision-animal-behavior-markers.html

https://techxplore.com/news/2023-07-robust-low-cost-sensor-devices-efficiency.html

3D scene from images

https://techxplore.com/news/2023-07-open-source-platform-easier-3d-scenes.html

Motion detector

https://techxplore.com/news/2023-07-vision-motion-videos.html

 

[OliverSedlacek]

have they or din't have they ?

View: https://www.youtube.com/watch?v=WV2AexANG34


the Paper about it

https://arxiv.org/pdf/2307.12008.pdf

the harsh realty:

If this pans out it's worth a whole new thread!

 

[Michel Van]

hope died last

https://twitter.com/x/status/1686805961124855810

View: https://twitter.com/Andercot/status/1686805961124855810

 

[Rhinocrates]

View: https://www.youtube.com/watch?v=gGaE3Ji48hU

 

[publiusr]

On materials design

New method simplifies the construction process for complex materials

Engineers are constantly searching for materials with novel, desirable property combinations. For example, an ultra-strong, lightweight material could be used to make airplanes and cars more fuel-efficient, or a material that is porous and biomechanically friendly could be useful for bone implants.

techxplore.com

Engineers create an energy-storing supercapacitor from ancient materials

Two of humanity's most ubiquitous historical materials, cement and carbon black (which resembles very fine charcoal), may form the basis for a novel, low-cost energy storage system, according to a new study. The technology could facilitate the use of renewable energy sources such as solar, wind...

techxplore.com

Scientists create novel approach to control energy waves in 4D

Everyday life involves the three dimensions (3D), along an X, Y and Z axis, or up and down, left and right, and forward and back. But in recent years scientists, like Guoliang Huang, the Huber and Helen Croft Chair in Engineering at the University of Missouri, have explored a "fourth dimension"...

phys.org

To spread or slide? Scientists uncover how foams spread on surfaces

Researchers from Tokyo Metropolitan University have uncovered the physics behind how foams spread on surfaces. The scientists placed balls of foam on a flat substrate and then scraped across it with a plate. They identified different patterns that strongly depended on the scraping speed, which...

phys.org

Boundary layers

Study observes sudden acceleration of flow, generation of new boundary layer

In an experiment on how turbulent boundary layers respond to acceleration in the flow around them, aerospace engineers at the University of Illinois Urbana-Champaign observed an unexpected internal boundary layer.

phys.org

In an experiment on how turbulent boundary layers respond to acceleration in the flow around them, aerospace engineers at the University of Illinois Urbana-Champaign observed an unexpected internal boundary layer."Not only were we able to identify a new internal boundary layer, but we were able to systematically track its height so we can understand its growth rate.

Stretch electronics and other tech

Scientists propose method that imparts elastic recovery to ferroelectric materials

A research group led by Prof. Li Runwei at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS) have proposed a "slight cross-linking" method that imparts elastic recovery to ferroelectric materials. The study was published in Science.

phys.org

Current takes a surprising path in quantum material

Cornell researchers have used magnetic imaging to obtain the first direct visualization of how electrons flow in a special type of insulator, and by doing so they discovered that the transport current moves through the interior of the material, rather than at the edges, as scientists had long...

phys.org

Scientists discover unusual ultrafast motion in layered magnetic materials

A common metal paper clip will stick to a magnet. Scientists classify such iron-containing materials as ferromagnets. A little over a century ago, physicists Albert Einstein and Wander de Haas reported a surprising effect with a ferromagnet. If you suspend an iron cylinder from a wire and expose...

phys.org

Nanoelectromechanical resonators based on hafnia–zirconia–alumina superlattices with gigahertz spectrum coverage

Newly developed atomic engineering techniques have opened exciting opportunities for enabling ferroelectric behavior in high-k dielectrics, materials that have a high dielectric constant (i.e., kappa or k) compared to silicon. This could in turn inform the development of more advanced CMOS-based...

phys.org

True shape of lithium revealed for the first time

Rechargeable lithium-ion batteries power smartphones, electric vehicles and storage for solar and wind energy, among other technologies.

phys.org

Droplet control

Ultrasound-based microfluidic manipulation platform for airborne droplets

As science races toward automation and quick experiments, it is sometimes required to concurrently handle small amounts of liquids (droplets), from picoliters to microliters. Moreover, droplet jumping is required when transporting droplets to distantly positioned devices or containers. However...

phys.org

View: https://www.youtube.com/watch?v=zzD_qJXOSO0

A low-tech way to create high-tech materials

AMOLF researcher Christiaan Van Campenhout has found a new, simple method to create a material with a regular pattern of crystalline bands. The pattern formed by the crystals is not a coincidence.

phys.org

Stick-to-itiveness: Engineers show self-organization of sticky micron-to-mesoscale 3D structures in confined fluids

Automating the construction of three-dimensional structures that are 10s of millimeters in size would revolutionize manufacturing of devices for optical, electrical and biomedical applications. An economical process for constructing such 3D microstructures would be to "program" the constituent...

phys.org

Nanorings

Nanorings: New building blocks for chemistry

Sandwich compounds are special chemical compounds used as basic building blocks in organometallic chemistry. So far, their structure has always been linear.

phys.org

Imaging nanostructures with sound

Using sound waves to image nanostructures

The potential of an ultrafast form of transmission electron microscopy to measure sound waves in nanostructures has been demonstrated by three RIKEN physicists. This could help realize a high-resolution imaging method that uses ultrahigh-frequency sound waves to image structures that are...

phys.org

HADAR

View: https://www.youtube.com/watch?v=WKrzmaixAC0

Purdue thermal imaging innovation allows AI to see through pitch darkness like broad daylight

Researchers at Purdue University are advancing the world of robotics and autonomy with their patent-pending method that improves on traditional machine vision and perception.

www.purdue.edu

Radar

New radar research overcomes nearly century-old trade-off between wavelength and distance resolution

New interference radar functions employed by a team of researchers from Chapman University and other institutions improve the distance resolution between objects using radar waves. The results may have important ramifications in military, construction, archaeology, mineralogy and many other...

phys.org

other optics news

Researchers find new depth of understanding about how camouflage takes shape

A study led by The University of Western Australia has revealed a tool used by prey to conceal 3D body shapes in nature, providing a different perspective on how camouflage works. The findings have been detailed in, " Camouflage using three-dimensional surface disruption," and published in...

phys.org

Millimeter-scale meron lattices that can serve as spin injectors for LEDs

Merons, topological structures based on in-plane magnetized magnetic materials, could have numerous valuable applications, particularly for carrying information or storing magnetic charge. Most past realizations of these structures, however, were limited in size and thermal stability or had...

phys.org

Unleashing a new era of color tunable nano-devices: Smallest ever light source with switchable colors formed

While nanocrystals offer color tunability and are used in various technologies, achieving different colors requires using different nanocrystals for each color, and dynamic switching between colors has not been possible.

phys.org

Butterfly-inspired films create vibrant colors while passively cooling objects

On a hot summer day, white clothing feels cooler than other colors due to reflecting—not absorbing—sunlight. Other colors like blue or black, will undergo a heating effect as they absorb light. To circumvent this heating effect in colored cooling films, researchers drew inspiration from...

phys.org

New transparent metadevices based on quasi-1D surface plasmon polariton structures

Transparent electronic devices could have numerous valuable real-world applications. Among other things, they could enable the creation of new optical devices, smart gear or wearables, invisible solar panels and integrated communication systems.

techxplore.com

Seeing light elements in a grain boundary: Revealing material properties down to the atomic scale

To develop advanced materials, a deep understanding of their underlying microstructure and chemistry is necessary. Knowing how defects influence the interplay between microstructure and chemical composition is crucial, as they are the entry gate for material's failure due to corrosion or crack...

phys.org

Harnessing the power of light: Advancements in photonic memory for faster optical computing

Technological advancements like autonomous driving and computer vision are driving a surge in demand for computational power. Optical computing, with its high throughput, energy efficiency, and low latency, has garnered considerable attention from academia and industry. However, current optical...

phys.org

New world record: Thinnest-ever pixel detector installed

The Belle II cooperation project at the Japanese research center KEK is helping researchers from all over the world to hunt for new phenomena in particle physics. The international experiment has now reached a major milestone after a team successfully installed a new pixel detector in its final...

phys.org

New scintillator film with benign grain boundaries developed for high-resolution, fast X-ray imaging

A research team led by Prof. Wu Yuntao from the Shanghai Institute of Ceramics of the Chinese Academy of Sciences, together with collaborators from Huazhong University of Science and Technology, has developed a new type of inorganic scintillator for high-resolution, fast X-ray imaging. The study...

phys.org

Research team achieves near-perfect light absorption in atomic-scale material

A University of Minnesota-led team has, for the first time, engineered an atomically thin material that can absorb nearly 100% of light at room temperature, a discovery that could improve a wide range of applications from optical communications to stealth technology. Their paper has been...

phys.org

Noisy data resolved

Novel physics-encoded artificial intelligence model helps to learn spatiotemporal dynamics

Prof. Liu Yang from the University of Chinese Academy of Sciences (UCAS), in collaboration with her colleagues from Renmin University of China and Massachusetts Institute of Technology, has proposed a novel network, namely, the physics-encoded recurrent convolutional neural network (PeRCNN), for...

techxplore.com

Researchers propose new method for pulsar timing and radio-frequency interference mitigation

Radio frequency interference (RFI) caused by human communication techniques (e.g., satellites, base stations, and navigation radars) can significantly distort shapes of multichannel time-frequency radio signals. Subsequent astrophysical measurements, such as pulsar timing require finer signal...

phys.org

Motion sensing

Tennis anyone? Researchers serve up advances in developing motion simulation technology's next generation

Simon Fraser University computing science assistant professor Jason Peng is leading a research team that is raising motion simulation technology to the next level—and using the game of tennis to showcase just how real virtual athletes' moves can be.

techxplore.com

 

[Michel Van]

Update on LK-99

View: https://www.youtube.com/watch?v=K8NqUJaWC0c

 

[publiusr]

That’s the story of the century…if reporting would ease from investigations and counter-investigations.

LK-99 perfect for RTGs?

 

[jsport]

Scientists Use DNA to Construct Material Lighter and Stronger Than Steel

Scientists have created a glass that uses DNA as its skeleton that far outclasses steel in strength and weight — at the nano-scale, at least.

futurism.com

 

[publiusr]

Now...might that help LK-99 formation as well?

 

[Rhinocrates]

Now, Huang and a team of scientists in the Structured Materials and Dynamics Lab at the MU College of Engineering have successfully created a new synthetic metamaterial with 4D capabilities, including the ability to control energy waves on the surface of a solid material. These waves, called mechanical surface waves, are fundamental to how vibrations travel along the surface of solid materials.

Scientists create novel approach to control energy waves in 4D // Show Me Mizzou // University of Missouri

University of Missouri scientists engineered a synthetic metamaterial to direct mechanical waves along a specific path, which adds an innovative layer of control to 4D reality, otherwise known as the synthetic dimension.

showme.missouri.edu

https://www.science.org/doi/10.1126/sciadv.adh4310

 

[Rhinocrates]

Thin reflective film that mimics butterfly wings can keep cars cool

A thin, multi-layered film inspired by the structure of vibrant blue butterfly wings could help vehicles reduce energy used for cooling

www.newscientist.com

https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-8-1059&id=535894

 

[Scott Kenny]

have they or din't have they ?

View: https://www.youtube.com/watch?v=WV2AexANG34


the Paper about it

https://arxiv.org/pdf/2307.12008.pdf

the harsh realty:

Some of the computational analysis of it suggests that it should be a superconductor (band gaps are in the right spots for it to be SC), and also suggests that using gold doping instead of copper doping would improve performance.

 

[bobbymike]

IBM unveils an analog AI chip that works like a human brain

IBM Research has unveiled an analog AI chip that demonstrates remarkable efficiency and accuracy in performing complex computations.

interestingengineering.com

 

[bobbymike]

As I get older and my mortality approaches I will be sad that I won’t witness how advanced we will be as a species. Odd statement given the following link sure, but advances on so many fronts at once I become philosophical.

No More Cavities? Organoids Pave the Way for Enamel Regeneration

This advance is viewed as a pivotal initial step toward innovative therapies for the repair and regeneration of teeth. Stem cells have been used to produce organoids that release the proteins responsible for forming dental enamel, a substance that shields teeth from harm and decay. This initiative

scitechdaily.com

 

[OliverSedlacek]

Some of the computational analysis of it suggests that it should be a superconductor (band gaps are in the right spots for it to be SC), and also suggests that using gold doping instead of copper doping would improve performance.

Superconductivity not reproduced by other labs. Ho hum.

 

[Scott Kenny]

Superconductivity not reproduced by other labs. Ho hum.

We'll see once the discoverer's samples are released for testing.

Because this was released as a paper first and not a press release (hello cold fusion), it's possible that there's a trick to making the stuff that isn't obvious from the paper's instructions.

 

[bobbymike]

Scientists design novel nonlinear circuit to harvest clean power using graphene

Obtaining useful work from random fluctuations in a system at thermal equilibrium has long been considered impossible. In fact, in the 1960s eminent American physicist Richard Feynman effectively shut down further inquiry after he argued in a series of lectures that Brownian motion, or the...

phys.org

 

[robunos]

Controlling fire with electricity . . .

https://www.science.org/content/blog-post/instant-flames-safely

cheers,
Robin.

 

[publiusr]

Talk in the comments about electric solid propellants. Karloff approved.

Back flame...back

 

[Rhinocrates]

TRL is just a bit past the 'Eureka!' in the bathtub, but it leads to a lot of 'Hmmm...'

Let there be matter: Simulating the creation of matter from photon–photon collisions

A team led by researchers at Osaka University and University of California, San Diego has conducted simulations of creating matter solely from collisions of light particles. Their method circumvents what would otherwise be the intensity limitations of modern lasers and can be readily implemented...

www.eurekalert.org

Applications of this work to the fictional matter–energy conversion technology of Star Trek remain just that: fiction. Nevertheless, this work has the potential to help experimentally confirm theories of the composition of the universe, or perhaps even help discover previously unknown physics.

[2307.13487] Positron generation and acceleration in a self-organized photon collider enabled by an ultra-intense laser pulse

TL;DR version, starting at 5:06

View: https://www.youtube.com/watch?v=XMsbNHHMAOI

 

[robunos]

TRL is just a bit past the 'Eureka!' in the bathtub, but it leads to a lot of 'Hmmm...'

Let there be matter: Simulating the creation of matter from photon–photon collisions

A team led by researchers at Osaka University and University of California, San Diego has conducted simulations of creating matter solely from collisions of light particles. Their method circumvents what would otherwise be the intensity limitations of modern lasers and can be readily implemented...

www.eurekalert.org

Applications of this work to the fictional matter–energy conversion technology of Star Trek remain just that: fiction. Nevertheless, this work has the potential to help experimentally confirm theories of the composition of the universe, or perhaps even help discover previously unknown physics.

[2307.13487] Positron generation and acceleration in a self-organized photon collider enabled by an ultra-intense laser pulse

TL;DR version, starting at 5:06

View: https://www.youtube.com/watch?v=XMsbNHHMAOI

Muirium . . .

cheers,
Robin.

 

[bobbymike]

New quantum device generates single photons and encodes information​

https://discover.lanl.gov/news/0824-quantum-light-emissions/?fbclid=IwAR1t19wllVmU7VDio9ZD5L1Eb2qNaiyTGgz5jSEUcBXek3ednNCEQLWU7wY_aem_AW5Is8e4h2_AdY58lQJCc8_kAd3F6e6z-0bwfOeBOOgFjbaih6YZqmSLyRlTAZ2WYzc

 

[publiusr]

Better electronics for space

Tough memory device aims for space missions

Among the many hazards encountered by space probes, exposure to radiation and huge temperature swings pose particular challenges for their electronic circuits. Now KAUST researchers have invented the first ever flash memory device made from gallium oxide, a material that can withstand these...

techxplore.com

For steam condensers

Steam condenser coating could save 460M tons of CO2 annually

If coal and natural gas power generation were 2% more efficient, then, every year, there could be 460 million fewer tons of carbon dioxide released and 2 trillion fewer gallons of water used. A recent innovation to the steam cycle used in fossil fuel power generation could achieve this.

www.sciencedaily.com

Nothing sticks

Nothing sticks: New silicon-infused 3D printed toilet bowl repels all

Going to the bathroom may not rank among the most pleasant activities of a day, but given some context, we should be quite appreciative.

techxplore.com

View: https://m.youtube.com/watch?v=BG5EHWh7Az8&embeds_referring_euri=https%3A%2F%2Ftechxplore.com%2F&source_ve_path=Mjg2NjY&feature=emb_logo

New battery tech

New lithium battery with simple production and high safety developed

Prof. Dr. Francesco Ciucci, Chair of Electrode Design for Electrochemical Energy Systems at the University of Bayreuth, in collaboration with his research partners from China, has succeeded in resolving the incompatibility between lithium nitrate and 1, 3‐dioxolane (DOL) for use in quasi-solid...

techxplore.com

Scientists invent micrometers-thin battery charged by saline solution that could power smart contact lenses

Scientists have developed a flexible battery as thin as a human cornea, which stores electricity when it is immersed in saline solution, and which could one day power smart contact lenses.

www.sciencedaily.com

For structures

Engineers use kirigami to make ultrastrong, lightweight structures

Researchers used kirigami, the art of Japanese paper cutting and folding, to develop ultrastrong, lightweight materials that have tunable mechanical properties, like stiffness and flexibility. These materials could be used in airplanes, automobiles, or spacecraft.

www.sciencedaily.com

Tracking tech

Invisible tagging system enhances 3D object tracking

www.myscience.org

Strong alloy

3D-printed alloy 600 times as resistant to stress as existing alloys

A team of materials scientists from NASA working with a colleague from The Ohio State University and another from HX5 LLC has developed a 3D printing process that produces an alloy that is much more resistant to stress than others now in use. Their study is reported in Nature.

phys.org

Glass

Researchers create paracrystallized aluminosilicate glass with supreme toughness

Researchers at the University of Bayreuth, together with partners in China and the U.S., have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing an aluminosilicate glass: The resulting crystal-like structures create a...

phys.org

New paint

New paint gives extra insulation, saving on energy, costs, and carbon emissions

Stanford University scientists have invented a new kind of paint that can keep homes and other buildings cooler in the summer and warmer in the winter, significantly reducing energy use, costs, and greenhouse gas emissions.

phys.org

Heat shield?

Recycling the non-recyclable: New epoxy resin resists flames and reduces waste

Empa researchers have developed an epoxy resin that can be repaired and recycled, in addition to being flame-retardant and mechanically strong. Potential applications range from coating for wooden flooring to composites in aerospace and railways.

phys.org

 

[publiusr]

Flex battery

A smart color-changing flexible battery with ultra-high efficiency

With the rapid growth of the smart and wearable electronic devices market, smart next-generation energy storage systems that have energy storage functions as well as additional color-changing properties are receiving a great deal of attention. However, existing electrochromic devices have low...

techxplore.com

De-stress

Stress-Reducing Breathing Balls : breathing ball

breathing ball - Alexz Farrall, a PhD student in computer science at the University of Bath over in the United Kingdom, has designed an innovative breathing ball th...

www.trendhunter.com

On hydrogen…safer tanks:

Safe tanks for hydrogen vehicles: Automated status monitoring for high-pressure storage systems

Hydrogen is a beacon of hope for the successful transition of the energy and mobility sectors. However, the gas is also highly explosive, and strict safety precautions are needed if hydrogen is to be used safely. The latest fuel cell vehicles carry hydrogen in gaseous form in pressurized tanks...

techxplore.com

Examining challenges in green hydrogen production: Study finds hydrogen effects that produce bottleneck

The quest for hydrogen as a clean and sustainable energy source has gained momentum. To produce green hydrogen, water must be split into oxygen and hydrogen. This water splitting process is facilitated by electrocatalysts that enhance the chemical reaction rate.

phys.org

https://phys.org/news/2011-08-breakthrough-hydrogen-fuel-cells-chemists.pdf

Carbon capture

A new way to capture and recycle carbon dioxide from industrial emissions

Carbon capture traps carbon dioxide before it escapes into the atmosphere, but the process requires a large amount of energy.

www.newswise.com

Rare

New evidence suggests McDermitt Caldera may be among the largest known lithium reserves in the world

A trio of volcanologists and geologists from Lithium Americas Corporation, GNS Science, and Oregon State University reports evidence that the McDermitt Caldera, on the Nevada/Oregon, border, may host some of the largest known deposits of lithium on Earth. In their project, reported in the...

phys.org

'Countercation engineering' for thermoresponsive graphene-oxide nanosheets

Graphene-based two-dimensional materials have recently emerged as a focus of scientific exploration due to their exceptional structural, mechanical, electrical, optical, and thermal properties. Among them, nanosheets based on graphene-oxide (GO), an oxidized derivative of graphene, with...

phys.org

Computing

Analog and digital: The best of both worlds in one energy-efficient system

We live in an analog world of continuous information flow that is both processed and stored by our brains at the same time, but our devices process information digitally in the form of discrete binary code, breaking the information into little bits (or bites).

techxplore.com

Lasers

Growing triple-decker hybrid crystals for lasers

By controlling the arrangement of multiple inorganic and organic layers within crystals using a novel technique, researchers at Duke University and Purdue University have shown they can control the energy levels of electrons and holes (positive charge carriers) within a class of materials called...

phys.org

 

[bobbymike]

Bigger and better quantum computers possible with new ion trap, dubbed the Enchilada

ALBUQUERQUE, N.M. — Sandia National Laboratories has produced its first lot of a new world-class ion trap, a central component for certain quantum computers. The new device, dubbed the Enchi

newsreleases.sandia.gov

 

[bobbymike]

Scientists Discover Amazing Practical Use For Leftover Coffee Grounds

We could be producing concrete that's 30 percent stronger by processing and adding charred coffee grounds to the mix, researchers in Australia have discovered.

www.sciencealert.com

 

[bobbymike]

Energy out of thin air? Quantum mechanics seemingly produces magic energy

"This is real physics, not science fiction". Two physics experiments showed that it is possible to produce energy inside an energy vacuum.

interestingengineering.com

Call Nick Cook it’s probably Zero Point energy

 

[publiusr]

https://www.washingtonpost.com/world/2023/09/05/uk-raac-concrete-crisis-schools/

New physics-based self-learning machines could replace current artificial neural networks and save energy

Artificial intelligence not only affords impressive performance, but also creates significant demand for energy. The more demanding the tasks for which it is trained, the more energy it consumes.

techxplore.com

Atomically-precise quantum antidots via vacancy self-assembly

Scientists demonstrated a conceptual breakthrough by fabricating atomically precise quantum antidots using self-assembled single vacancies in a two-dimensional transition metal dichalcogenide.

www.sciencedaily.com

No intelligence necessary: 'Brainless' robot that navigates complex obstacle courses created by scientists

Robots seem to be getting smarter and smarter, but one new machine is proving a brain may be optional.

studyfinds.org

Team discovers thousands of new transformable knots

Knots are used in all sorts of ways, every day. They ensure safety both indoors and for outdoor activities such as boating or sailing, are used as surgical sutures, as decorations, and they can even be found at nanoscales in nature, for example in DNA molecules.

phys.org

Scientists Harness E. coli Bacteria to Generate Electricity from Wastewater | Weather.com

Engineered E. coli capable of generating electricity from a wide range of sources can be utilised in microbial fuel cells, electrosynthesis, and biosensing, among other applications, claim the study authors. - Articles from The Weather Channel | weather.com

weather.com

Unveiling the mechanism of 3D folding in cell sheets

The artist in nature creates wonders of geometric patterns, as can be seen in the wings of Drosophila fruit flies just after emerging from their pupal case, which is known as eclosion. They meticulously fold into stereotypic shapes, just like in the paper-folding art of origami, invented from...

phys.org

Scientists synthesize new organometallic 'sandwich' compound capable of holding more electrons

Organometallic compounds, molecules made up of metal atoms and organic molecules, are often used to accelerate chemical reactions and have played a significant role in advancing the field of chemistry.

phys.org

Scientists develop an energy-efficient wireless power and information transfer system

Simultaneous wireless information and power transfer (SWIPT)-aided nonorthogonal multiple access (NOMA) system, used for communication in the Industrial Internet of Things (IIoTs), suffers from significant energy loss with transmission distance. Now, researchers have developed an...

www.sciencedaily.com

Previously unknown pathway to batteries with high energy, low cost and long life

With the help of high-resolution imaging techniques in real time, scientists have uncovered a mechanism for improving the electrochemical reactions that occur u

www.newswise.com

Princeton Engineering - Better lithium production on a string

A new approach for extracting lithium slashes the time and land needed to harvest the silvery-white metal.

engineering.princeton.edu

Contours that kill: Geometry influences prey capture in carnivorous pitcher plants

Researchers at the University of Oxford's Botanic Garden and the Mathematical Institute have shown that the shape, size, and geometry of carnivorous pitcher plants determines the type of prey they trap. The results have been published today in the Proceedings of the National Academy of Sciences...

phys.org

Research suggests Mars has far fewer minerals than Earth

Nearly 6,000 different minerals are known to exist on Earth, but after more than 50 years of investigations, only 161 minerals have been recorded on Mars—a dramatically lower number for a planet that shares much in common with our own.

phys.org

Exploring the effects of hardware implementation on the exploration space of evolvable robots

Evolutionary robotics is a sub-field of robotics aimed at developing artificial "organisms" that can improve their capabilities and body configuration in response to their surroundings, just as humans and animals evolve, adapting their skills and appearance over time. A growing number of...

techxplore.com

 

[bobbymike]

Ceramic Nano Memory promises to disrupt the $500 billion storage business

Cerabyte will show how its Ceramic Nano Memory technology works during the upcoming Storage Developer Conference in Fremont, California. Meanwhile, the brief introduction posted by Cerabyte founder...

www.techspot.com

 

[bobbymike]

Not too big: Machine learning tames huge datasets​

Using the Summit supercomputer, Los Alamos algorithm breaks the exabyte barrier​

https://discover.lanl.gov/news/0911-machine-learning/?fbclid=IwAR2M6RKn_Bp4g8bt-ENOA2uZzg2YH-dSbz2xMAHKrxOdtUn0LnOMyfRbA5M_aem_AbQXk4IjA2tm1pQdNqywxKTjhWG347TX_XyHaPTyUgrDaV2OOHYF1LCPsbbBsRkFgKs

 

[Rhinocrates]

Related, and probably better suited to this thread than the AI and society one. It's part of a series, so check out the links. AI can be particularly useful in making connections, not only as a super search engine but by linking researchers - matchmaking as it were. Others are in automating laboratory work, sorting Big Data, replication - like the work done by drones, if not dirty and dangerous, but certainly boring work.

How scientists are using artificial intelligence

It is already making research faster, better, and more productive

www.economist.com

In materials science, for example, the problem is similar to that in drug discovery—there are an unfathomable number of possible compounds. When researchers at the University of Liverpool were looking for materials that would have the very specific properties required to build better batteries, they used an ai model known as an “autoencoder” to search through all 200,000 of the known, stable crystalline compounds in the Inorganic Crystal Structure Database, the world’s largest such repository. The ai had previously learned the most important physical and chemical properties required for the new battery material to achieve its goals and applied those conditions to the search. It successfully reduced the pool of candidates for scientists to test in the lab from thousands to just five, saving time and money.

 

[Rhinocrates]

Silkworms genetically engineered to produce pure spider silk

Spider silk has been seen as a greener alternative to artificial fibres like nylon and Kevlar, but spiders are notoriously hard to farm. Now researchers have used CRISPR to genetically engineer silkworms that produce pure spider silk

www.newscientist.com

https://www.cell.com/matter/fulltext/S2590-2385(23)00421-6

 

[publiusr]

"Material would allow users to tune windows to block targeted wavelengths of light."

Material would allow users to 'tune' windows to block targeted wavelengths of light

Researchers have demonstrated a material for next generation dynamic windows, which would allow building occupants to switch their windows between three modes: transparent, or "normal" windows; windows that block infrared light, helping to keep a building cool; and tinted windows that control...

phys.org

New fire safe fuel

Chemical engineers unveil fire-safe fuel

UC Riverside chemical engineers have designed a fuel that ignites only with the application of electric current. Since it doesn't react to flames and cannot start accidental fires during storage or transport, it is a "safe" liquid fuel.

techxplore.com