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כתבות אחרונות מאתר 'Phys'
Phys

Burned stone, child's bones, and lost jewelry hint at prehistoric mining camp high in the Pyrenees‎

In the past, scientists thought that prehistoric peoples only traveled briefly through high-altitude mountain areas, rather than staying to take advantage of their resources. But new evidence suggests that, starting about 5,500 years ago, a prehistoric community repeatedly climbed up to Cave 338, 2,235 meters above sea level in the Pyrenees, to collect and process malachite for copper—returning many times over thousands of years. Additional finds, including jewelry, suggest that much more remains to be found when excavations reopen this summer.

07:16
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Phys

States across the wildfire-prone Western US are using AI for early detection‎

On a March afternoon, artificial intelligence detected something resembling smoke on a camera feed from Arizona's Coconino National Forest. Human analysts verified it wasn't a cloud or dust, then alerted the state's forest service and largest electric utility.

05:18
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Phys

Why endless scrolling gets harder to stop: Three drivers of problematic internet use revealed‎

Why do so many people lose control over their internet use? While age limits for social media are being debated, many adults also spend hours online every day. For some, this becomes a burden, affecting mental health, daily life and relationships. A new study led by Professor Matthias Brand (University of Duisburg-Essen) now sheds light on why it is so difficult to disengage from the screen.

04:37
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Phys

What's stopping kids from learning useful skills? Short answer: Exams‎

Across Africa and beyond, education systems are shifting to curricula designed to build critical thinking and problem-solving skills.

02:49
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Phys

We might have massively underestimated Io's thermal output‎

Io is a world of extremes. It is by far the most volcanically active world in our solar system. Being continually squeezed in the never-ending tug-of-war between Jupiter and its larger satellites will do that to a moon. As a result, Io has over 400 "paterae"—volcanic depressions that spew lava up onto its surface. And, according to a new paper available in pre-print on arXiv and utilizing data from Juno's Jupiter InfraRed Auroral Mapper (JIRAM) tool, we have been massively underestimating the power output of those paterae for decades.

01:43
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Phys

Politicians are not ignoring you, statistical analysis suggests‎

If you're registered to vote in the United States and you're not among the richest of the rich, political scientist Peter K. Enns has a message for you: Your voice still matters. So does data analysis methodology.

01:43
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Phys

Want to predict wildfire severity? Research says look to the state of vegetation‎

Urbanization, climate change, and fire suppression practices are contributing to increased wildfire risk at the densely populated wildland-urban interface. These factors make fires more unpredictable and harder to manage. In January 2025, this was made devastatingly clear in Los Angeles, when massive wildfires engulfed entire hillsides and canyons, destroying neighborhoods and damaging surrounding ecosystems.

01:23
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Phys

AI-powered lab discovers brighter lead-free nanomaterials in 12 hours‎

A new autonomous laboratory recently navigated through billions of potential material synthesis recipes to identify brighter, lead-free light-emitting nanomaterials in just 12 hours. The work could accelerate development of safer light-emitting nanoplatelets for use in applications ranging from photodetectors to the production of fuel from solar energy. A paper describing this work appears in Nature Communications.

01:23
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Phys

Giving voice to older homeless women navigating streets and shelters‎

For women in their 50s experiencing homelessness, daily life means far more than finding a place to sleep. It means navigating dangerous shelter environments, managing serious health conditions without adequate support, and fighting to maintain dignity in a system that was never designed for them. A new study led by Boston University School of Social Work (BUSSW) Professor Judith Gonyea puts their experiences at the center.

01:04
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Phys

Antibiotic-resistant bacteria turn up in six lakes, with urban waters hit hardest‎

A team of scientists from Berlin analyzed water and sediment samples from six water bodies in Berlin and the adjacent federal states of Brandenburg and Mecklenburg-Western Pomerania, as well as the inflow and outflow of a wastewater treatment plant in Berlin. The scientists analyzed bacteria found in these samples and detected a higher diversity and load of antibiotic resistance genes in urban samples. The inflow and effluent from the treatment plant were the most heavily contaminated, but resistant bacteria were also found in rural lakes far from urban areas. The study is published in the journal iScience.

01:04
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