Articles by Paul Arnold
Phys.org / Modern experiments suggest rhino teeth may have been part of Neanderthal toolkits
Neanderthals may not only have feasted on rhinoceroses, they may also have used their exceptionally hard teeth as specialized tools for a range of tasks, such as retouching the edges of stone tools.
Phys.org / Mobile qubits on a chip move us a step closer to everyday quantum computers
For years, quantum computers have lived under a huge bubble of hype, promising to revolutionize numerous fields, from medicine and battery design to materials science and cybersecurity. But realizing their potential on any ...
Medical Xpress / Large study finds a strong link between depression and problem cannabis use
A new meta-analysis of 55 studies involving more than 3 million people has found that 31% of individuals with cannabis use disorder (CUD) also struggle with major depressive disorder (MDD). While a link between these two ...
Phys.org / A persistent quantum computing error finally explained
Scientists have discovered the cause of a persistent glitch that continues to disrupt superconducting quantum computers, even when they have built-in defenses. For all their advanced hardware, superconducting quantum computers ...
Phys.org / Colored microplastics could be making global warming worse
There's more bad news about microplastics. We already know they pose a risk to health and can pollute ecosystems, but now researchers have discovered that tiny plastic particles drifting in Earth's atmosphere could be a significant ...
Phys.org / Physics-based weather models more accurate than AI at predicting extreme weather
Weather forecasting is another aspect of modern life that artificial intelligence is transforming. Models like GraphCast, Pangu-Weather, and Fuxi are already better than traditional physics-based climate models at predicting ...
Medical Xpress / Omega-3 supplements may be linked to faster cognitive decline in seniors, study finds
Omega-3 supplements are popular among many older adults to help combat age-related issues. They are often marketed as supporting cardiovascular health and reducing the risk of cognitive decline and dementia. However, a new ...
Phys.org / How a newly discovered organelle could help reduce cow methane emissions
When cows burp, they send a substantial amount of methane gas into the air, which makes them a leading contributor to greenhouse gas emissions. According to research published in the journal Science, a newly discovered hydrogen-producing ...
Phys.org / A leading journal finds that AI is flooding academic publishing with lower quality work
Artificial intelligence can undoubtedly help scientists with their academic papers by summarizing research and helping to improve writing. However, one downside is that it has led to a wave of poorly written submissions and ...
Phys.org / How temperature swings impact the growth of young songbirds
Climate change threatens to cause increasingly extreme and variable temperature swings, affecting everything from urban infrastructure to global food supplies. In the animal kingdom, the hardest hit may be the youngest and ...
Phys.org / In good spirits: Why haunted houses are perfect places to connect with others
A pounding heart, shaking limbs, chills and a churning stomach—it's no wonder that fear is an emotion we usually try to avoid. At least most of the time. We may not like having the wits scared out of us in a real-life crisis, ...
Phys.org / A silent robot shadows sperm whales by listening to their clicks
An autonomous underwater glider is giving us a new and effective way to track sperm whales by tuning into their clicks and silently following them. To study these large oceanic predators, researchers need to monitor their ...
Phys.org / The 'tail' of the shrinking dog brain: Study reveals they began getting smaller 5,000 years ago
Dogs have long been known to have smaller brains than the wolves they descended from. But when they started to shrink has been a matter of some debate. New research published in the journal Royal Society Open Science, which ...
Phys.org / Ancient farming clues may finally expose where humanity's most important wheat first emerged
The exact origin of bread wheat (Triticum aestivum) is still a mystery, but researchers believe they are edging closer to the source of one of the most important food staples worldwide. Using genetic studies and ancient plant ...
Science X / Forget the caveman myth: Neanderthal brains challenge what we thought we knew
We appear to have more in common with our Neanderthal cousins than outward appearances would suggest. New research published in the journal Proceedings of the National Academy of Sciences suggests that the differences between ...
