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Paul Arnold

Paul Arnold

Author

Paul is a versatile freelance writer with a BSc in Biology from the University of London. He worked at the BBC producing science and medical documentaries, traveling the world interviewing scientists in places like Antarctica and the Canadian High Arctic. He now freelances from sunny southern Spain.

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 ...

Nov 20, 2025
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 ...

Nov 20, 2025
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.

Nov 19, 2025
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 ...

Nov 19, 2025
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.

Nov 18, 2025
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 ...

Nov 18, 2025
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.

Nov 17, 2025
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 ...

Nov 17, 2025
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 ...

Nov 14, 2025
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 ...

Nov 14, 2025
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 ...

Nov 13, 2025
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.

Nov 13, 2025
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 ...

Nov 12, 2025
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 ...

Nov 12, 2025
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 ...

Nov 11, 2025