Articles by Paul Arnold
Phys.org / Cats adjust their communication strategy by meowing more when greeting men
As many cat owners will testify, their pets are often mysterious creatures, independent, cunning and sometimes aloof. And now it appears that when it comes to communication, they might be playing favorites. A new study published ...
Phys.org / New digital state of matter could help build stable quantum computers
Scientists have taken another major step toward creating stable quantum computers. Using a specialized quantum computer chip (an essential component of a quantum computer) as a kind of tiny laboratory, a team led by Pan Jianwei ...
Phys.org / Monkeys have rhythm and can tap along to the beat (with a little help from the Backstreet Boys)
They may not yet be kings of the swingers, but macaque monkeys can keep time to music and move to the beat. Well, at least two adult macaques can, who were trained by researchers to tap along to different kinds of music. ...
Phys.org / Asteroid loaded with amino acids offers new clues about the origin of life on Earth
One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer space. This idea suggests that prebiotic molecules—the building blocks of life—were transported ...
Phys.org / New universal law predicts how most objects shatter, from dropped bottles to exploding bubbles
When a plate drops or a glass smashes, you're annoyed by the mess and the cost of replacing them. But for some physicists, the broken pieces are a source of fascination: Why does everything break into such a huge variety ...
Medical Xpress / Prototype device restores lost smell by teaching the brain to feel odors
There is new hope for people who have lost their smell. Scientists have successfully tested a breakthrough device that lets people detect the presence of certain odors. This innovative system helps them "smell" again by translating ...
Phys.org / Dating a North American rock art tradition that lasted 175 generations
The Pecos River murals are a stunning collection of monumental, multicolored rock paintings in limestone rock shelters across southwest Texas and northern Mexico. They depict human-like figures that reach up to eight meters ...
Phys.org / Modern life explains why people in Chile are taller and have larger heads than their ancestors
Modern Chileans are significantly taller and have larger heads than their ancestors. That's the central finding of new research looking at how intracranial volume (ICV) has changed across thousands of years in northern Chile. ...
Phys.org / Love hurts: Flashy feathers may put some male pheasant species' lives at risk
The male Lady Amherst's pheasant knows how to put on a show when it comes to attracting mates. As well as elaborate courtship displays, they will unfurl their golden feathers to form a cape around their neck, which can prove ...
Phys.org / Experimental proof shows quantum world is even stranger than previously thought
The quantum world is famously weird—a single particle can be in two places at once, its properties are undefined until they are measured, and the very act of measuring a quantum system changes everything. But according to ...
Tech Xplore / The world's most efficient solar cell: Chinese researchers explain how they designed and built it
Earlier in 2025, Chinese solar manufacturer Longi announced it had built the world's most efficient solar cell. The hybrid interdigitated back-contact (HIBC) cell achieved 27.81% efficiency, which was verified by Germany's ...
Phys.org / Endangered lemurs face new threat from the luxury meat trade
Lemurs, the small primates with bushy tails and large, expressive eyes, are among the world's most endangered species. According to the IUCN (International Union for Conservation of Nature) Red List, of the 112 species of ...
Phys.org / Cooperative mammals show lower cancer rates than solitary, competitive species
Cancer is a common disease among mammals, but some species, such as the naked mole rat and elephants, have evolved resistance. According to new research published in the journal Science Advances, this may be because these ...
Phys.org / Polar ice melt offers unexpected solution to a global climate disaster
The Atlantic Meridional Overturning Circulation (AMOC), a system of Atlantic Ocean currents that redistributes heat and nutrients between the tropics and the North Atlantic, is one of the planet's tipping points. That means ...
Medical Xpress / Macrophage-killing bacterial toxin weakens the gut's defenses against ulcerative colitis
Ulcerative colitis (UC) is one of the most common inflammatory bowel diseases, a lifelong condition that can cause chronic inflammation and ulcers in the lining of the large intestine. This can lead to symptoms such as rectal ...
