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Phys.org / Attosecond X-ray method maps early electron motions that trigger chemical reactions

All chemistry starts with a push from electrons. In the early moments of a chemical reaction, it's the movement of electrons that initiates the breaking of old chemical bonds and forging of new ones, transforming one molecule ...

Aug 5, 2026
Medical Xpress / Expert shares practical tips for treating hair loss

Hair loss is often caused by a combination of heredity and aging, says Dr. Dawn Davis, a Mayo Clinic dermatologist. Treatments that may slow that type of hair loss and help regrow hair, including over-the-counter therapies ...

Aug 7, 2026
Phys.org / Stomach stone hypothesis sheds light on the evolution of dinosaur digestive systems

An international research team led by Assistant Professor Ryuji Takasaki of the Faculty of Biosphere-Geosphere Science at Okayama University of Science has published a paper proposing a new hypothesis on the evolutionary ...

Aug 3, 2026
Phys.org / Quantum fluid reveals hidden states that can be switched with a magnetic field

Bose-Einstein condensates (BECs) are often described as a "fifth state of matter": a quantum state in which many particles lose their individual identities and behave as one collective object. For more than 60 years, researchers ...

Aug 4, 2026
Phys.org / 'Spooky' particles transit DC suburbs, a step toward a quantum network

In early 2025, special signals wended their way through a fiber-optic highway strung above the streets and sidewalks of the Maryland suburbs. The arrival of those signals at their destination marks a significant step toward ...

Aug 5, 2026
Medical Xpress / Wildfires now the dominant contributor to unhealthy levels of air pollution for pregnant women in the US

Wildfires are well-known health risks. Now, in a new Frontiers in Environmental Health study, researchers in the U.S. have—for the first time—evaluated how prenatal PM2.5 exposure has changed over space and time on a national ...

Aug 7, 2026
Phys.org / Long-term study suggests landfill methane emissions are far higher than estimates

Methane is an especially potent greenhouse gas, causing much more warming than carbon dioxide on a unit-for-unit basis—and a new, uniquely long-term study of emissions at a New Jersey landfill suggests that estimates of methane ...

Aug 5, 2026
Phys.org / New catalyst design selectively suppresses competing hydrogen reaction in ammonia synthesis

A research team led by professor Yousung Jung from the Department of Chemical and Biological Engineering at Seoul National University College of Engineering has developed a new catalyst design principle that suppresses the ...

Aug 4, 2026
Phys.org / Bringing it all into focus—computational microscope captures 25.2 billion pixels per second across a wide field of view

When designing microscopes, optical engineers have long faced a trade-off between speed, field of view and resolution. But improving one of these properties typically comes at the expense of another. Now, a UC Berkeley–led ...

Aug 3, 2026
Medical Xpress / Fridge-free tetanus-diphtheria vaccine shows promise of reaching millions worldwide

The encouraging results of the world's first trial of a fridge-free tetanus-diphtheria vaccine could improve access worldwide to crucial treatments while reducing carbon emissions. Fridge-free vaccines have the potential ...

Aug 6, 2026
Phys.org / Electric field reverses phonon chirality and spin direction in ferroelectric crystal

Chiral phonons are groups of atoms that move in a circular direction when excited by an energy source, such as heat. As the phonons move through a material, they propagate that circular motion, or angular momentum, through ...

Aug 5, 2026
Phys.org / Harvesting rainwater from rooftops could help cities stay cool and cut the number of heat wave days

Collecting rainwater from rooftops and using it to spray buildings during hot weather could help cities cut air conditioning use, lower urban temperatures and lessen the impact of heat waves, according to new research from ...

Aug 5, 2026