Articles by Paul Arnold
Phys.org / Scientists finally prove that a quantum computer can unconditionally outperform classical computers
A quantum computer has demonstrated that it can solve a problem more efficiently than a conventional computer. This achievement comes from being able to unlock a vast memory resource that classical computing cannot match.
Phys.org / Clues from the deep sea that an exploding star sent debris to the Earth 10 million years ago
Scientists trying to work out whether a star exploded and the resulting debris crashed into Earth 10 million years ago may be one step closer to solving the mystery. They discovered an unusual amount of Beryllium-10 (10Be) ...
Tech Xplore / Novel film manufacturing technique lets robots walk on water
Imagine tiny robots zipping across the surface of a lake to check water quality or searching for people in flooded areas. This technology is moving closer to reality thanks to work by researchers at the University of Virginia's ...
Phys.org / Study of the world's longest-lived person reveals rare genes and good bacteria are among the keys to a long life
What is the secret of supercentenarians? While there is no magical "elixir of life" that allows us to live forever, this incredibly rare group of people who live to be 110 years or older appears to have some biological advantage. ...
Phys.org / Chatbot connections: New study reveals the truth about AI boyfriends
Advances in AI technology have ushered in a new era of digital romance, where people are forming intimate emotional connections with chatbots. For many, these AI companions are a crucial lifeline, helping to combat feelings ...
Medical Xpress / A new look at how the brain works reveals that wiring isn't everything
How a brain's anatomical structure relates to its function is one of the most important questions in neuroscience. It explores how physical components, such as neurons and their connections, give rise to complex behaviors ...
Phys.org / The Ganges River is drying at an unprecedented rate, new study finds
The Ganges River is in crisis. This lifeline for around 600 million people in India and neighboring countries is experiencing its worst drying period in 1,300 years. Using a combination of historical data, paleoclimate records ...
Phys.org / Solving the mystery of whether a Bolivian salt flat is the world's largest natural mirror
The largest salt flat in the world is Salar de Uyuni in Bolivia, a popular tourist attraction due to its stunning mirror-like surface when covered with a thin layer of water. While considered by many to be the "world's largest ...
Phys.org / The hunted, not the hunters: AI reveals early humans were prey for leopards
A new study may be about to rewrite a part of our early human history. It has long been thought that Homo habilis, often considered the first true human species, was the one to turn the tables on the predator–prey relationship. ...
Medical Xpress / A single blood test can measure how different parts of our bodies are aging
Our bodies do not age at a uniform rate. The speed at which one organ ages can differ greatly from another due to a range of lifestyle, environmental and genetic factors. Conventional tests provide a single number for overall ...
Phys.org / Zebra finches organize their calls by meaning, not just on how they sound
Zebra finches have a more complex way of communicating than previously thought. A new study published in the journal Science found that the sociable songbird does not just recognize and organize different calls based on how ...
Phys.org / El Niño brings more intense rain to India's wettest regions
A new study has made a counterintuitive discovery about how El Niño affects India's summer monsoon. Instead of reducing rainfall overall and causing widespread droughts, the periodic climatic phenomenon increases rainfall ...
Phys.org / A tiny cow bone whistle may have been used by ancient Egyptian 'police'
Archaeologists in Egypt have discovered a 3,300-year-old whistle made from a cow's toe bone, believed to have been used by police to guard royal tomb workers. The artifact was found in the ruins of the ancient city of Akhetaten ...
Phys.org / Carbon credits have little to no effect on making companies greener, study reveals
Many companies across the world use carbon credits as part of their climate strategies to offset emissions. A carbon credit is a certificate that represents the reduction, avoidance or removal of one ton of carbon dioxide ...
Tech Xplore / The AI model that teaches itself to think through problems, no humans required
Artificial intelligence is getting smarter every day, but it still has its limits. One of the biggest challenges has been teaching advanced AI models to reason, which means solving problems step by step. But in a new paper ...
