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Tech Xplore / We built AI friends but forgot the safeguards

Recently, a popular AI Companion company made headlines by announcing it would ban users under 18 from open-ended chats with its AI characters, with the full restriction to taking effect on 25 November 2025.

Nov 30, 2025 in Security
Medical Xpress / Why it's so easy to choke on fish bones—and the other dangers they pose

Strictly Come Dancing judge Shirley Ballas recently revealed that she'd "thought that was it" after a fish bone became lodged in her throat. Ballas's terrifying ordeal lasted for 20 minutes, with the judge struggling to breathe ...

Nov 30, 2025 in Health
Phys.org / First 'Bible map' published 500 years ago still influences how we think about borders, study suggests

The first Bible to feature a map of the Holy Land was published 500 years ago in 1525. The map was initially printed the wrong way round—showing the Mediterranean to the East—but its inclusion set a precedent which continues ...

Nov 28, 2025 in Other Sciences
Tech Xplore / The world's most efficient solar cell: Chinese researchers explain how they designed and built it

Earlier in 2025, Chinese solar manufacturer Longi announced it had built the world's most efficient solar cell. The hybrid interdigitated back-contact (HIBC) cell achieved 27.81% efficiency, which was verified by Germany's ...

Nov 25, 2025 in Engineering
Phys.org / Astronomers investigate nearby pulsar with radio telescopes

Using the Large Phased Array (LPA) and the Five-hundred-meter Aperture Spherical radio Telescope (FAST), astronomers from Russia and China have observed a nearby pulsar designated PSR J1951+2837. The new observations, presented ...

Nov 26, 2025 in Astronomy & Space
Phys.org / Shop-bought cable helps power two quantum networks

For decades, physicists have dreamed of a quantum internet: a planetary web of ultrasecure communications and super-powered computation built not from electrical signals, but from the ghostly connections between particles ...

Nov 26, 2025 in Physics
Phys.org / Dark matter-dark energy interaction shapes cosmic halo spin and alignment, simulations show

A cosmological simulation study by researchers from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences has systematically revealed, for the first time, how the interaction between dark matter and dark ...

Nov 28, 2025 in Astronomy & Space
Phys.org / How phototherapy could reverse antibiotic resistance

Lars Stevens-Cullinane works in a dark room. But he's not processing negatives and printing photographs on light-sensitive paper; he's testing whether brief flashes of light can make drug-resistant bacteria sensitive to antibiotics.

Nov 28, 2025 in Chemistry
Phys.org / Flightless ancestor shows brain evolution in pterosaurs and birds took different paths

Flight is a rare skill in the animal world. Among vertebrates, it evolved only three times: in bats, birds, and the long-extinct pterosaurs. Pterosaurs were the pioneers, taking to the skies more than 220 million years ago, ...

Nov 26, 2025 in Biology
Tech Xplore / Electric vehicle prowess helps China's flying car sector take off

A worker in white gloves inspects the propellers of a boxy two-seater aircraft fresh off the assembly line at a Chinese factory trialing the mass production of flying cars.

Nov 30, 2025 in Hi Tech & Innovation
Phys.org / Studies show how the giant statues on Rapa Nui were made and moved—and what caused the island's deforestation

Rapa Nui, also known as Easter Island, is often portrayed in popular culture as an enigma. The rationale is clear: The tiny, remote island in the Pacific features nearly 1,000 enormous statues—the moai. The magnitude and ...

Nov 28, 2025 in Other Sciences
Phys.org / Finding information in the randomness of living matter

When describing collective properties of macroscopic physical systems, microscopic fluctuations are typically averaged out, leaving a description of the typical behavior of the systems. While this simplification has its advantages, ...

Nov 28, 2025 in Physics