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Phys.org / Ancient sling bullet delivers a 2,100-year-old taunt: 'Learn your lesson!'
For millennia, sling bullets served as a hand-thrown projectile that could be used to fend off enemies. At Hippos, 70 sling bullets made of lead have been recovered over the course of fieldwork and excavation. However, while ...
Phys.org / ShadowCam search casts doubt on abundant lunar ice
New observations by a team of US astronomers have cast fresh doubt on whether the lunar surface could host abundant water ice. Publishing their results in Science Advances, a team led by Shuai Li at the University of Hawaii ...
Phys.org / Rivers and tidal currents keep 80% of microfibers from reaching oceans, study suggests
Every time we do a load of laundry, tiny fibers of polyester escape from our clothes and slip down the drain. These microfibers, so small they can be invisible to the naked eye, are among the most common forms of microplastic ...
Phys.org / New model links carbon-13 spike to Great Oxidation Event 2.45 billion years ago
Two University of Victoria (UVic) geologists have integrated field geology with statistical modeling to give scientists a new view of the chemical reactions happening on ocean floors billions of years ago. The revised picture ...
Phys.org / Opening a new window into superconductivity by reimagining a classic tool
For more than a century, condensed matter physics has grappled with one of its greatest unsolved challenges: how to build superconductors that operate at room temperature and transmit electricity with no loss. Now, in a paper ...
Phys.org / Addressing the Achilles' heel of marine protected areas
New research led by James Cook University (JCU) emphasizes that the success of marine protected areas (MPAs) depends largely on understanding and influencing people's behaviors within their borders. The study demonstrates ...
Medical Xpress / An immune signaling pathway drives pain in arthritis, researchers discover
Rheumatoid arthritis is a chronic autoimmune disease that affects millions of people worldwide. This disease prompts the immune system to mistakenly attack body tissues, particularly joints, leading to inflammation, swelling, ...
Phys.org / Synthesis of amino acids from carbon reaches 97% efficiency with cell-free system
The building blocks of proteins, amino acids, are essential for all living things. Twenty different amino acids build the thousands of proteins that carry out biological tasks. While some are made naturally in our bodies, ...
Phys.org / New AI model predicts record high dipole moments in unexpected molecules
Chemists may soon have one less rigorous step to worry about when searching for the right molecules to accomplish their highly specific innovation needs. Scientists have now built a new machine learning model that can predict ...
Phys.org / Chatting with people beats interactions with AI chatbots when it comes to reducing loneliness
More and more people are turning to AI chatbots as if they were close friends—venting about personal struggles, asking for advice, and even sharing their deepest secrets. These conversations can feel strikingly real, with ...
Phys.org / Designing better 2D electronics: Addressing anisotropic conductivity to cut contact resistance
The high-performance semiconductor devices powering smartphone displays, AI computing, EV batteries and more are increasingly incorporating 2D materials to overcome silicon's scaling limits. To optimize these technologies, ...
Phys.org / Reconstructing food webs to reveal a dynamic Gulf of Maine
When most people think about corals, they imagine a tropical reef with crystal blue water, teeming with colorful fish. But, in the depths of the cold, murky Gulf of Maine, deep-sea corals thrive, feasting on a steady supply ...