Phys.org news

Phys.org / Kenya's big cats under pressure: Cattle are pushing lions away

In the Kenyan savanna, lions and livestock essentially live in shifts: Cattle graze during the day and are enclosed at night when lions are active.

1 hour ago in Biology
Phys.org / Compact electron accelerator offers new approach for treating PFAS-contaminated water

So-called forever chemicals or PFAS compounds are a growing environmental problem. An innovative approach to treating PFAS‐contaminated water and soil now comes from accelerator physics: high‐energy electrons can break ...

1 hour ago in Earth
Phys.org / Ultrafast light switches use atomically thin semiconductors for rapid optical control

A nanostructure made of silver and an atomically thin semiconductor layer can be turned into an ultrafast switching mirror device that may function as an optical transistor—with a switching speed around 10,000 times faster ...

1 hour ago in Nanotechnology
Phys.org / Unified framework sorts spacetime fluctuations for quantum-gravity experiments

A team of researchers led by the University of Warwick has developed the first unified framework for detecting "spacetime fluctuations"—tiny, random distortions in the fabric of spacetime that appear in many attempts to ...

3 hours ago in Physics
Phys.org / New method creates acinar cells involved in formation of pancreatic cancer

Organoids are three-dimensional miniature models of organs, grown in a dish. They have become a valuable tool for studying human development, organ regeneration, function, and disease progression. Organoids derived from patient ...

2 hours ago in Biology
Phys.org / Bionic LiDAR system achieves beyond-retinal resolution through adaptive focusing

In a recent study, researchers from China have developed a chip-scale LiDAR system that mimics the human eye's foveation by dynamically concentrating high-resolution sensing on regions of interest (ROIs) while maintaining ...

8 hours ago in Physics
Phys.org / Iron Age dental plaque reveals Scythians consumed milk from horses and ruminants

Researchers have deciphered the diet of an important nomadic people in Eastern European history. By analyzing dental calculus, they have provided the first direct evidence that the diet of the Scythians included milk from ...

2 hours ago in Other Sciences
Phys.org / A wild potato that changed the story of agriculture in the American Southwest

Starchy residue preserved in ancient stone tools may rewrite the story of crop domestication in the American Southwest, according to research led by the University of Utah.

2 hours ago in Other Sciences
Phys.org / Largest canine gut microbiome catalog reveals hundreds of new bacterial strains

Researchers at the Waltham Petcare Science Institute in the UK recently revealed a complete taxonomic and functional catalog of the canine gut microbiome after analyzing samples from 107 healthy dogs across the U.S. and Europe. ...

4 hours ago in Biology
Phys.org / How European city life is continually rewriting insect DNA

Cities are known to shape the evolution of wildlife within them, but according to a study of European cities published in the journal Proceedings of the Royal Society B: Biological Sciences, this is not a one-off event. Rather ...

4 hours ago in Biology
Phys.org / Metal clumps in a quantum state: Physicists place thousands of sodium atoms in a 'Schrödinger's cat state'

Can a small lump of metal be in a quantum state that extends over distant locations? A research team at the University of Vienna answers this question with a resounding yes. In the journal Nature, physicists from the University ...

3 hours ago in Physics
Phys.org / Massive black hole mystery unlocked by researchers

It's one of astronomy's great mysteries: how did black holes get so big, so massive, so quickly. An answer to this cosmic conundrum has now been provided by researchers at Ireland's Maynooth University (MU) and reported today ...

3 hours ago in Astronomy & Space