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כתבות אחרונות מאתר 'Phys'
Phys

A summer odyssey: Female dotterels seek multiple mates across Northern Europe‎

On a high Norwegian plateau in late May, patches of bare ground begin to appear through the snow, and with them arrive some of Europe's most approachable birds. Eurasian dotterels breed on exposed mountain ridges and Arctic tundra from Scotland, through Scandinavia, to Siberia, and are famously tolerant of people—a trait that has long made them easy prey for hunters. They are unusual in another sense, too.

16:21
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Phys

Floridians become more cautious as economic outlook weakens in August‎

Consumer sentiment in Florida continued its downward trend in August, declining for the sixth consecutive month to 67.4, down 1.9 points from a revised July reading of 69.3. National consumer sentiment also decreased.

16:21
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Phys

Despite years of rain, Blue Mountains forests still haven't recovered from the Black Summer megafires‎

For three years before the Black Summer megafires of 2019–20, cool-season rainfall in southeastern Australia was only half the normal amount. When fires broke out, intensely dry conditions helped them spread through areas typically resistant to burning, such as wetlands and rainforests.

16:04
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Phys

Beneficial bacteria support tomato growth and suppress disease‎

Bacterial canker, a vascular infection, can wreak havoc on tomato plants, with symptoms ranging from wilted leaves to the collapse of an entire plant. Clavibacter michiganensis, the seedborne pathogen that causes the disease, can be challenging to treat because it spreads easily. "This pathogen is really problematic, especially in greenhouses," said microbiologist Eric Déziel, Ph.D., at the Institut national de la recherche scientifique (INRS) in Quebec, Canada.

16:04
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Phys

Seven new species show 250-million-year-old marine group is still evolving‎

Scientists believed there were only two species of hornerid bryozoans in Aotearoa New Zealand, but new research shows several more have been secretly evolving and thriving in the nation's southern waters.

16:04
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Phys

New research: Google's AI Overviews reinforce some conspiracy theories‎

Imagine overhearing on a bus that the city council plans to implement new restrictions under an urban planning program called "15-minute cities." Curious, you search the term on Google.

15:51
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Phys

More than 120 molecular species found in giant cloud near Milky Way's center‎

Astronomers have discovered a second interstellar cloud near the center of the Milky Way that is extraordinarily rich in complex molecules, including several molecules associated with prebiotic chemistry. The newly studied cloud, G+0.633-0.0604, or G+0.633, contains more than 120 identified molecular species and is the first confirmed chemical twin of another famous molecule-rich cloud. Their paper, posted to the arXiv preprint server on Aug. 14, outlines the chemistry of the newfound cloud.

15:40
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Phys

UN report finds 1.5°C warming limit likely to be exceeded by 2030‎

For more than a decade, the world has been trying to limit global warming to 1.5°C.

15:30
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Phys

Human-like AI not always the answer in customer service‎

The next time something goes wrong with your bank account, package delivery or a bill, there's a good chance you'll be directed to AI for customer service.

15:04
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Phys

Temperature emerges as a control for topological properties of materials‎

Spin-orbit coupling (SOC), an interaction between an electron's spin and its motion, plays a key role in creating topological insulators—unusual materials that are insulating in their interior but can conduct electricity along their surfaces.

14:52
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