Articles by Paul Arnold
Phys.org / Climate change is now warming the deepest parts of the Arctic Ocean
While it is well known that climate change is heating the world's oceans, it was thought that the deep sea was safe from its effects—until now. Researchers have discovered that a rapidly warming part of the Atlantic is leading ...
Tech Xplore / Engineers repurpose a mosquito proboscis to create a 3D printing nozzle
When it comes to innovation, engineers have long proved to be brilliant copycats, drawing inspiration directly from nature. But now some scientists are moving beyond simple imitation to incorporating natural materials into ...
Medical Xpress / New cholesterol-lowering pill reduces bad cholesterol levels by almost 60%
Trials of a new cholesterol-lowering pill have shown promising results for people with heterozygous familial hypercholesterolemia (HeFH), a genetic disorder that leads to high levels of LDL cholesterol.
Tech Xplore / New green homes in the UK put less strain on the grid than models predicted
A study of some of the first net-zero-ready homes in the UK has found that their peak grid power demand is far lower than planners had anticipated. The research confirms that these all-electric homes can significantly cut ...
Phys.org / Looking inside a well-preserved Neanderthal nose to solve a mystery about our ancestors' faces
A long-standing debate in paleontology about whether the distinctive Neanderthal nose evolved purely for the cold weather may have finally been solved, and it's all thanks to an ancient, exceptionally preserved nasal cavity.
Tech Xplore / Disney teaches a robot how to fall gracefully and make a soft landing
Bipedal (two-legged) robots are sophisticated machines, but they are not the most graceful when things go wrong. A simple push, fall or an obstacle can send them crashing to the ground, often resulting in expensive damage ...
Tech Xplore / Soft robot powered by edible pneumatic battery and actuator
Using common kitchen ingredients such as citric acid and sodium bicarbonate, scientists have created an edible pneumatic battery and valve system to power soft robots.
Tech Xplore / Perovskite solar cells achieve 27.2% efficiency with improved chlorine distribution
In recent years, perovskite has emerged as a promising solution for cheaper, more efficient solar energy. This advanced synthetic material is made from crystals that mimic the naturally occurring crystal perovskite (calcium ...
Medical Xpress / Gut bacterium could be key to tackling obesity crisis
The internet, libraries and bookshops are full of plans and advice on how to lose weight, from fad diets to intense exercise routines. But there could be another route to keeping the pounds away, and that's with a gut bacterium ...
Phys.org / AI math genius delivers 100% accurate results
At the 2024 International Mathematical Olympiad (IMO), one competitor did so well that it would have been awarded the Silver Prize, except for one thing: it was an AI system. This was the first time AI had achieved a medal-level ...
Phys.org / Chinese team finds a fern that makes rare earth elements
Scientists have discovered a fern from South China that naturally forms tiny crystals containing rare earth elements (REEs). This breakthrough opens the door to a promising new way of "green mining" of these minerals called ...
Tech Xplore / Novel smart fabrics give robots a delicate grip
Robots aren't always the most delicate of machines when handling fragile objects. They don't have the lightness of touch of humans. But that could be about to change thanks to a new development in smart materials.
Phys.org / Gut microbes pass down behavioral traits in mice offspring independent of genes
Gut microbes are essential partners that help digest food, produce vitamins and train the immune system. They can also pass on behavioral traits to their host's offspring, at least in mice. Scientists at the Max Planck Institute ...
Phys.org / Scientists discover caves carved by water on Mars that may have once harbored life
If there is, or ever has been, life on Mars, the chances are it would exist in caves protected from the severe dust storms, extreme temperatures, and high radiation present on its surface. One place to focus our attention ...
Tech Xplore / Mapping AI's brain reveals memory and reasoning are not located in the same place
Researchers studying how large AI models such as ChatGPT learn and remember information have discovered that their memory and reasoning skills occupy distinct parts of their internal architecture. Their insights could help ...