Phys.org news
Phys.org / Electrochemical system extracts pure hydrogen from ammonia at substantially lower temperatures
As a liquid that is easily stored and transported, ammonia (NH3) is an attractive carrier for hydrogen, which is used in fuel cells, semiconductor manufacturing, chemical processing and other applications. However, breaking ...
Phys.org / Families' interest in their kids' education is falling around the globe as scores drop, test shows
Families' interest in their kids' education is falling in many high-income countries as school systems struggle with plunging test scores, according to newly released results from a standardized test taken by 15-year-olds ...
Phys.org / Unconventional quantum materials could dramatically boost the search for dark matter
For decades, physicists have searched for dark matter, the invisible substance thought to make up roughly 85% of all matter in the universe. Although its gravitational influence shapes galaxies and the large-scale structure ...
Phys.org / First Denisovan forearm bone discovered in southwest China
Scientists have discovered various Denisovan remains in Southwest China dating to the late Middle Pleistocene, including the first Denisovan radius—one of two long bones in the forearm.
Phys.org / Beryllium signal identifies stars that have swallowed rocky planets
An international team led by researchers from the University of São Paulo (USP) in Brazil has developed an innovative method to identify stars that have consumed the planets around them. The technique detects variations in ...
Phys.org / Cacao genetics could help breeders reduce heavy metal levels in cocoa beans
Cadmium is a naturally occurring, toxic heavy metal found in many soils across Latin America and the Caribbean, where cacao trees are widely cultivated. It makes its way into cocoa seeds, called beans, that are roasted and ...
Phys.org / Forever chemicals break apart into fluoride under UV treatment, revealing a cleanup roadmap
UC Riverside environmental engineers have identified key chemical reactions that occur when ultraviolet light is used to destroy "forever chemical" pollutants in water, providing a roadmap for developing more effective cleanup ...
Phys.org / LLM use may threaten freedom of thought and equality across law, journalism and education
The Human Rights Center at UC Berkeley School of Law has released a human rights assessment of the use of large language models (LLMs) in the fields of law, journalism and education.
Phys.org / 3D magnetic-field control reveals new way to tune spin textures
(Fe0.63Ni0.3Pd0.07)3P, or FNPP, is a magnetic material that exhibits complex magnetic structures even at room temperature. This makes the material of interest for spintronics, a field that could enable data processing with ...
Phys.org / Chandra uncovers 'hypersoft X-ray sources' that may solve two astrophysical puzzles
Using NASA's Chandra X-ray Observatory, scientists have discovered a new class of objects behaving unlike any they have seen before. Astronomers suggest these newly spotted objects in other galaxies may help solve not one, ...
Phys.org / Fossils from embryo to adult suggest how an enigmatic, bird-like troodontid dinosaur grew
Analysis of fossilized remains from dinosaurs known as troodontids reveals how one species' hip and leg bones may have developed over its lifespan, from embryo to adult—with potential implications for resolving longstanding ...
Phys.org / Discontinuity and disorder: Explaining the luminosity bump in evolved stars
Toward the end of their lives, low-mass stars undergo an abrupt dip in brightness, also known as the luminosity bump. While the endpoint of this bump is well understood, its onset has remained elusive. Now, in a paper published ...
