Phys.org news
Phys.org / Sliding droplets point to charging mechanism beyond mobile ions
Whether on a windowpane at home or during the industrial cleaning of computer chips: droplets sliding over solid surfaces become electrically charged. Yet the physical mechanism behind this charging remains a subject of debate. ...
Phys.org / Beach-burrowing beasties may shovel more sand than any other animal on Earth
At just an inch (2.5 centimeters) long, the sand hoppers skipping across California's Isla Vista Beach at dawn don't exactly look like a force of nature. But a new study reveals that these shrimp-like creatures might be doing ...
Phys.org / Speeding glaciers drive half a century of polar ice loss
The longest satellite record ever assembled shows that Greenland and Antarctica have lost 11.3 trillion metric tons of ice since the 1970s, raising global sea level by more than 3 centimeters (1.2 inches)—and that most of ...
Phys.org / Most Americans reject political violence, but support can vary sharply by party
Republicans and conservatives are more likely than Democrats or liberals to justify political violence in 17 surveyed situations, according to a study published in PLOS One by Garen J. Wintemute of the University of California, ...
Phys.org / Pufferfish taste receptor more versatile than a human's, detecting both savory L- and sweet D-amino acids
Our sense of taste is critical for survival, alerting us to substances that provide vital nutrients and those that might poison us. Now, a team led by researchers from the University of Osaka has discovered how one such taste ...
Phys.org / New breeding approach targets crop rotations, not yield alone
Breeding crops for farming systems rather than yield alone could exploit untapped genetic potential and help farmers cut fertilizer bills.
Phys.org / Australia's ancient rainfall patterns more complex than previously believed
"Sediment and fossil records are a major pillar of our understanding of how the climate works—but climate scientists have gotten something wrong about Australia's ice age," says Dr. Alex F. Wall, lead author of a new research ...
Phys.org / New simulations link unusual particle diffusion to yielding in soft jammed matter
Soft materials such as colloidal suspensions, emulsions, foams and gels often display complex and unusual behaviors compared with ordinary solids or liquids. From a mechanical point of view, for instance, they can resist ...
Phys.org / Heating mica to 200°C reveals friction independent of sliding speed
Through joint research with the U.S. Geological Survey and the University of Tokyo, NIMS for the first time experimentally demonstrated friction completely independent of sliding velocity—an ideal that had never been realized—by ...
Phys.org / Indigenous Australian population was much larger than previously thought and decimated after First Fleet's arrival
Australia had a much larger Indigenous population before the arrival of Europeans than previously thought, according to new research. The research also demonstrates much larger population losses resulting from colonization ...
Phys.org / Wild dogs make the longest recorded journey of any terrestrial mammal in Africa
African wild dogs (Lycaon pictus) travel incredibly long distances to search for a mate and new places to breed. They typically embark on these mammoth treks as young adults and often face numerous hazards along the way. ...
Phys.org / Biophysical model suggests how cells optimize information gathering without using too much energy
In both biological and engineered systems, cells and sensors must make sense of noisy, changing signals to function. However, collecting and using this information consumes valuable energy. A new study, published in Physical ...
