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כתבות אחרונות מאתר 'Phys'
Phys

Relamination: A mechanism that has been shaping continents for billions of years‎

An international team led by researchers from the National Museum of Natural Sciences (MNCN-CSIC) has identified a key mechanism that has shaped Earth's continents over billions of years. This mechanism is the deep re-lamination of subducted continental crust, a process that explains the origin of certain magmas and offers a new perspective on continental evolution from the Archean (between 3.8 and 2.5 billion years ago) to recent times.

12:11
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Phys

Nutrient imbalance may drive coral disease more than heat stress‎

Scientists led by the University of Southampton have revealed that an imbalance of nutrients in seawater can cause coral disease—possibly to a greater extent than that from heat stress of warming oceans. New research conducted at Southampton's Coral Reef Laboratory, and with colleagues at the University of Derby, shows disruption of the delicate nutrient balance of the sea can destabilize microbial communities that live in harmony with corals, triggering disease.

12:11
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Phys

Saving chocolate while restoring rainforests? Rock dust boosts soil nutrition and supports farmers‎

Chocolate is the food of the gods. The name of the tree from which the confection originates, Theobroma cacao, combines the Greek words for god (theós) and food (brôma). This small evergreen tree grows in tropical forests rich in both biodiversity and carbon.

10:39
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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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