Phys.org news
Phys.org / Why doesn't coffee taste like caffeine?
Though decaf fans might disagree, caffeine is a critical component of a cup of joe. This compound is incredibly bitter on its own, but regular coffee itself is not. A team reporting in the Journal of Agricultural and Food ...
Phys.org / Portable UV spectrometer can detect air pollutants across 2.5 km with high precision
Birgitta Schultze-Bernhardt and her team at the Institute of Experimental Physics at Graz University of Technology (TU Graz) have developed a new type of UV dual-comb spectrometer that detects gaseous air pollutants with ...
Phys.org / HETDEX opens massive Cosmic Noon dataset to scientists, novices and AI
The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX)—which recently completed the largest survey ever taken of the early universe—has released all of its immense, information-rich database to the public. Built from ...
Phys.org / Ancient DNA offers hope for California's critically endangered black abalone
Black abalone once carpeted the rocky shores of California by the millions. The large, long-lived sea snails sustained Indigenous peoples along the coast for thousands of years, anchored a thriving 20th-century commercial ...
Phys.org / 'BBQ sauce' phase may link little red dots to quasars
Everyone knows that finding the right sauce recipe can make or break a barbecue, but now astronomers are using BBQSORS (pronounced "barbecue sauce") as part of the recipe to explain quasars, some of the brightest objects ...
Phys.org / Taimering mammoth was likely butchered by hunters and gatherers
The wooly mammoth from Taimering (Bavaria, Germany), discovered in 2020, was buried in a former Ice Age pond after its death. Pollen findings and radiocarbon dating confirm that the mammoth lived and died during the harsh ...
Phys.org / A new capability to detect chemical weapons involves two existing methods
In the aftermath of suspected chemical attacks, investigators from the Organization for the Prohibition of Chemical Weapons (OPCW) step in to collect chemical, environmental, and biomedical samples. Thorough forensic laboratory ...
Phys.org / Organized microbial guilds keep Earth's underground biosphere running, research reveals
By studying life deep inside a former gold mine, a Northwestern University-led team of scientists has uncovered evidence that Earth's hidden biosphere operates less like a random collection of microbes and more like an organized ...
Phys.org / Thundering footsteps warn caterpillars of lethal ladybeetle attacks
Diminutive warty birch caterpillars (Falcaria bilineata), less than 1.5mm long, ardently defend their leaf tip homes from invading caterpillars by scraping and pounding the leaf to warn off potential invaders. But how might ...
Phys.org / Water-wave tweezers steer tiny 'surfers' without touching them
Summer brings with it the sight of surfers moving seamlessly across wave crests, with ocean waters carrying them along coastlines. A team of scientists has now created a similar phenomenon—with small objects rather than surfers—that ...
Phys.org / New route to tailor-made diamond nanoparticles holds promise for quantum applications
Nanodiamonds are tiny diamond particles only a few nanometers in size. Because they are chemically highly stable and can host so-called color centers, optically active defects in the crystal lattice, they are considered promising ...
Phys.org / Temperature gaps help sneeze clouds stay denser and travel farther, experiments show
When a person coughs or sneezes, they expel a cloud of microscopic particles capable of carrying viruses and bacteria that act as vectors for respiratory diseases such as flu, COVID-19 or tuberculosis. Understanding how these ...
