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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

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
Phys.org / How climate change increased the risk of earthquakes in East Africa

Climate change is accelerating continental rifting, the geological process where landmasses slowly pull apart. According to a new study published in the journal Scientific Reports, the East African Rift System (EARS) became ...

Nov 11, 2025
Tech Xplore / Microsoft finds security flaw in AI chatbots that could expose conversation topics

Your conversations with AI assistants such as ChatGPT and Google Gemini may not be as private as you think they are. Microsoft has revealed a serious flaw in the large language models (LLMs) that power these AI services, ...

Nov 10, 2025
Phys.org / X-ray techniques map and measure the invisible properties of altermagnets

The new big thing in magnetics is altermagnetism, a form of magnetism that promises to power the next generation of electronics. Unlike ferromagnets, like a fridge magnet, where all internal atomic spins align to create a ...

Nov 10, 2025
Phys.org / Water temperatures in Amazonian lakes rise to unprecedented levels, killing wildlife

During a severe drought and heat wave in 2023, Amazonian lakes reached their highest recorded temperatures. Water temperatures in some areas climbed to an astonishing 41 degrees Celsius (105.8 degrees Fahrenheit) and resulted ...

Nov 8, 2025
Phys.org / Uncovering the genetic mechanism that causes barley crops to sprout early

Every year, billions of dollars' worth of crops worldwide perish due to pre-harvest sprouting (PHS), a phenomenon in which grain or seeds germinate on the plant before harvest. The process is triggered by a variety of factors, ...

Nov 7, 2025
Phys.org / How quantum computers can aid the search for room-temperature superconductors

For the first time, a quantum computer has successfully measured pairing correlations (quantum signals that show electrons teaming up in pairs), which is essential to helping scientists find one of the holy grails of physics—superconductors ...

Nov 6, 2025
Phys.org / A long, bumpy caterpillar-like wormhole may connect two black holes

For obvious reasons, we do not know what the inside of a black hole looks like. But thanks to theoretical physics, we can ask what the inside should look like if Einstein's theory of gravity and the rules of quantum mechanics ...

Nov 6, 2025
Phys.org / Sulfur cave spiders build an arachnid megacity and possibly the largest-ever spider web

Researchers may have discovered the world's biggest spider web, a massive subterranean structure spanning over 100 square meters in a sulfur cave on the Albania–Greece border. The multilayered web along a wall near the cave ...

Nov 5, 2025