ScienceDaily: Matter & Energy News


Throwing an 'axion bomb' into a black hole challenges fundamental law of physics

Posted: 25 Jun 2021 09:04 AM PDT

New research shows how the fundamental law of conservation of charge could break down near a black hole.

'Fool's gold' not so foolish after all

Posted: 25 Jun 2021 07:05 AM PDT

New research has found tiny amounts of gold can be trapped inside pyrite, commonly known as 'fool's gold,' which would make it much more valuable than its name suggests.

Versatile, fast and reliable SARS-CoV-2 antibody assay

Posted: 24 Jun 2021 10:55 AM PDT

During the continued progression of the coronavirus pandemic, rapid, inexpensive, and reliable tests will become increasingly important to determine whether people have the associated antibodies -- either through infection or vaccination. Researchers have now developed such a rapid antibody test. It provides the result in only eight minutes; the aim is to further reduce the process time to four minutes.

Nanotech and AI could hold key to unlocking global food security challenge

Posted: 24 Jun 2021 08:44 AM PDT

'Precision agriculture' where farmers respond in real time to changes in crop growth using nanotechnology and artificial intelligence (AI) could offer a practical solution to the challenges threatening global food security, a new study reveals.

Ultralight material withstands supersonic microparticle impacts

Posted: 24 Jun 2021 08:44 AM PDT

Engineers find 'nanoarchitected' materials designed from precisely patterned nanoscale structures may be a promising route to lightweight armor, protective coatings, blast shields, and other impact-resistant materials.

No lab required: New technology can diagnose infections in minutes

Posted: 24 Jun 2021 08:44 AM PDT

Engineering, biochemistry and medical researchers at McMaster University have combined their skills to create a hand-held rapid test for bacterial infections that can produce accurate, reliable results in less than an hour, eliminating the need to send samples to a lab.

Quantum simulation: Measurement of entanglement made easier

Posted: 24 Jun 2021 08:44 AM PDT

Researchers have developed a method to make previously hardly accessible properties in quantum systems measurable. The new method for determining the quantum state in quantum simulators reduces the number of necessary measurements and makes work with quantum simulators much more efficient.

Protocells spring into action

Posted: 24 Jun 2021 08:44 AM PDT

Scientists with an interest in protoliving technologies, have published research which paves the way to building new semi-autonomous devices with potential applications in miniaturized soft robotics, microscale sensing and bioengineering.

New protein engineering method could accelerate the discovery of COVID-19 therapeutics

Posted: 24 Jun 2021 08:43 AM PDT

Researchers have found a simple method for identifying nanobodies with drug-like properties suitable for preventing SARS-CoV-2 infections. They demonstrated the approach by generating nanobodies that neutralized the SARS-CoV-2 virus more potently than an antibody isolated from an infected patient and a nanobody isolated from an immunized animal.

The fifth quartet: Excited neon discovery could reveal star qualities

Posted: 24 Jun 2021 08:43 AM PDT

Researchers show that an excited state previously predicted to exist in neon-20 is real by using particle scattering experiments. By merging into five groups of four, the protons and neutrons in neon-20 can exist in a special condensed state. This work may help scientists understand low-density nucleon many-body systems and neutron stars.

Microspheres quiver when shocked

Posted: 23 Jun 2021 04:40 PM PDT

Researchers report that they have demonstrated the use of DC electric fields to drive back-and-forth rotation of micro-particles in electric boundary layers. These particle oscillators could be useful as clocks that coordinate the organization of active matter and even, perhaps, orchestrate the functions of micron-scale robots.

Tree pollen carries SARS-CoV-2 particles farther, facilitates virus spread, study finds

Posted: 23 Jun 2021 04:40 PM PDT

A study on the role of microscopic particles in virus transmission suggests pollen is nothing to sneeze at. In a new study, researchers investigate how pollen facilitates the spread of an RNA virus like the COVID-19 virus. The study draws on cutting-edge computational approaches for analyzing fluid dynamics to mimic the pollen movement from a willow tree, a prototypical pollen emitter. Airborne pollen grains contribute to the spread of airborne viruses, especially in crowded environments.

New algorithm helps autonomous vehicles find themselves, summer or winter

Posted: 23 Jun 2021 11:16 AM PDT

An algorithm lets machines teach themselves how to recognize landscapes, even amid the changing seasons.

Harvesting drinking water from humid air around the clock

Posted: 23 Jun 2021 11:16 AM PDT

Researchers have developed a condenser for countries where water is in short supply. Theirs is a zero-energy solution for harvesting water from the atmosphere throughout the 24-hour daily cycle. It relies on a self-cooling surface and a special radiation shield.

Sneeze cam reveals best fabric combos for cloth masks

Posted: 23 Jun 2021 10:07 AM PDT

Researchers have used high-speed videos of a person sneezing to identify the optimal cloth mask design.

A novel energy storage solution featuring pipes and anchors

Posted: 23 Jun 2021 10:06 AM PDT

What do pipes and anchors have to do with storing energy? More than you might think! A new study explored the potential of a lesser known, but promising sustainable energy storage system called Buoyancy Energy Storage.

Fracture setting method could replace metal plates, with fewer complications

Posted: 23 Jun 2021 10:06 AM PDT

A new biocompatible polymer-based composite material could soon replace metal plates in treating difficult and unstable fractures. The newly-developed material is as strong as dental composites yet non-toxic.

Magneto-thermal imaging brings synchrotron capabilities to the lab

Posted: 23 Jun 2021 10:06 AM PDT

Coming soon to a lab tabletop near you: a method of magneto-thermal imaging that offers nanoscale and picosecond resolution previously available only in synchrotron facilities.

Low-cost imaging technique shows how smartphone batteries could charge in minutes

Posted: 23 Jun 2021 08:39 AM PDT

Researchers have developed a simple lab-based technique that allows them to look inside lithium-ion batteries and follow lithium ions moving in real time as the batteries charge and discharge, something which has not been possible until now.

Mechanism of magnetic sensing in birds

Posted: 23 Jun 2021 08:38 AM PDT

The magnetic sense of migratory birds such as European robins is thought to be based on a specific light-sensitive protein in the eye. Researchers demonstrate that the protein cryptochrome 4, found in birds' retinas, is sensitive to magnetic fields and could well be the long-sought magnetic sensor.

How to make lithium-ion batteries invincible

Posted: 23 Jun 2021 07:02 AM PDT

Scientists have made significant progress in developing battery cathodes using a new class of materials that provide batteries with the same if not higher energy density than conventional lithium-ion batteries but can be made of inexpensive and abundant metals. Known as DRX, which stands for disordered rocksalts with excess lithium, this novel family of materials was invented less than 10 years ago and allows cathodes to be made without nickel or cobalt.

Sound-induced electric fields control the tiniest particles

Posted: 23 Jun 2021 06:12 AM PDT

Engineers have devised a system for manipulating particles approaching the miniscule 2.5 nanometer diameter of DNA using sound-induced electric fields. Dubbed 'acoustoelectronic nanotweezers,' the approach provides a label-free, dynamically controllable method of moving and trapping nanoparticles over a large area. The technology holds promise for applications in the fields ranging from condensed matter physics to biomedicine.

Advancing research on environmentally friendly, hydrogen-enriched fuel

Posted: 23 Jun 2021 06:12 AM PDT

As you drive down the highway, you may notice an increasing number of hybrid and electric vehicles. Alternative energy automobiles are on the rise contributing to the global effort to reduce carbon emissions. As we move together down this road, researchers are looking to determine new solutions to this ongoing problem.

Combining three techniques boosts brain-imaging precision

Posted: 23 Jun 2021 06:12 AM PDT

Researchers have developed a method to combine three brain-imaging techniques to more precisely capture the timing and location of brain responses to a stimulus. Their study is the first to combine the three widely used technologies - fMRI, EEG and EROS - for simultaneous imaging of brain activity.

Mapping methane sources in Paris

Posted: 23 Jun 2021 06:12 AM PDT

A potent greenhouse gas, methane is released by many sources, both human and natural. Large cities emit significant amounts of methane, but in many cases the exact emission sources are unknown. Now, researchers have conducted mobile measurements of methane and its sources throughout Paris. Their findings suggest that the natural gas distribution network, the sewage system and furnaces of buildings are ideal targets for methane reduction efforts.

Mining precious rare-earth elements from coal fly ash with a reusable ionic liquid

Posted: 23 Jun 2021 06:12 AM PDT

Rare-earth elements are in many everyday products, such as smart phones, LED lights and batteries. However, only a few locations have large enough deposits worth mining, resulting in global supply chain tensions. So, there's a push toward recycling them from non-traditional sources, such as waste from burning coal -- fly ash. Now, researchers report a simple method for recovering these elements from coal fly ash using an ionic liquid.

X-ray photoelectron spectroscopy: Error in calibration

Posted: 22 Jun 2021 06:13 AM PDT

New research shows that X-ray photoelectron spectroscopy (XPS) can give misleading analysis results due to an erroneous assumption during calibration.

Virtual reality as pain relief: Reducing dressing change pain in pediatric burn patients

Posted: 21 Jun 2021 09:37 AM PDT

Prior studies have investigated alternative approaches to pain reduction in burn injury patients that focus on distraction, such as music, hypnosis, toys, and virtual reality (VR). A research team has now reported the use of smartphone-based VR games during dressing changes in pediatric patients with burn injuries.

This molecule is made from sugar, shaped like a doughnut, and formed using light

Posted: 21 Jun 2021 09:37 AM PDT

Research demonstrates how a hydrazone template can replace energy-intensive distillation to produce and isolate gamma-cyclodextrin -- a water-soluble chemical that attracts other molecules and is used to enhance food, pharmaceuticals, and a wide range of consumer products.

New research adds a wrinkle to our understanding of the origins of matter in the Milky Way

Posted: 19 Jun 2021 06:20 AM PDT

New research suggests that carbon, oxygen, and hydrogen cosmic rays travel through the galaxy toward Earth in a similar way, but, surprisingly, that iron arrives at Earth differently. The international research team analyzed data from the CALET instrument on the International Space Station to arrive at the results, which help address the age-old question: How is matter generated and distributed across the universe?