Articles by Paul Arnold
Phys.org / Ancient Roman officers may have kept pet monkeys to highlight their status
There were many ways in which the elites of ancient Roman society flaunted their wealth. They built vast villas, sponsored extravagant games and imported luxury goods. And military top brass, at least those stationed at an ...
Phys.org / Adult female bark spiders produce superior and tougher silk than males do
Dragline silk or major ampullate (MA) silk, the part of a spider's web that forms the main frame and spokes, is one of the toughest materials known to science. That is, it can absorb massive amounts of energy from a sudden ...
Phys.org / Inequalities exist in even the most egalitarian societies, anthropologists find
There is no such thing as a society where everyone is equal. That is the key message of new research that challenges the romantic ideal of a perfectly egalitarian human society.
Medical Xpress / Parenting styles play a key role in shaping teen mental health
Mental health is a global crisis, with more than 1 billion people affected by mental health conditions, according to the World Health Organization (WHO). Young people are particularly affected, with suicide as the third leading ...
Phys.org / Alkaline-loving microbes could help safeguard nuclear waste buried deep underground for thousands of years
Billions of alkaline-loving microbes could offer a new way to protect nuclear waste buried deep underground. This approach overcomes the limitations of current cement barriers, which can crack or break down over time.
Medical Xpress / Gut bacteria's hidden toxin acts as DNA glue, fueling colorectal cancer risk
Colibactin is a powerful toxin produced by Escherichia coli and other bacteria living in the human gut. This highly unstable bacterial product causes mutations in DNA that have been linked to colorectal cancer. Because it ...
Tech Xplore / Scientists develop a glasses-free 3D system with a little help from AI
Watching 3D movies and TV shows is a fun and exciting experience, where images leap out of the screen. To get this effect, you usually have to wear a special pair of glasses. But that could soon be a thing of the past as ...
Phys.org / Glaciers speed up and slow down at predictable times according to the first global map of ice movement
The speed at which glaciers move changes predictably each year, according to the first-ever global map of how glacier and ice sheet speeds vary with the seasons. Knowing this yearly rhythm could help us better predict sea-level ...
Phys.org / Smart material instantly changes colors on demand for use in textiles and consumer products
Scientists have developed a revolutionary technique for creating colors that can change on command. These are structural colors that don't rely on dyes or pigments and can be used for display signage, adaptive camouflage ...
Phys.org / Interstellar object covered in 'icy volcanoes' could rewrite our understanding of how comets formed
Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered in erupting icy, volcano-like structures called cryovolcanoes. Researchers also discovered that the ...
Phys.org / Ancient stalagmite provides insights into how climate affected early communities in cradle of civilization
The Fertile Crescent, a boomerang-shaped region spanning modern-day Middle Eastern countries, is considered the cradle of civilization and where farming first emerged. But little is known about how climate change influenced ...
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 ...