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כתבות אחרונות מאתר 'Phys'
Phys

The once-theoretical skyrmion could unlock supercomputing memory‎

When looking to the future of information technology, researchers have pinpointed a once-theoretical particle-like structure: the skyrmion. Magnetic skyrmions are very stable structures found on micromagnetic materials that have a vortex-like spin. Because they can be moved with minimal electrical current, these structures could help develop memory to power the next generation of computing without consuming a lot of power.

18:02
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Phys

Could dark matter be made of black holes from a different universe?‎

New research suggests that relic black holes from before the big bang may still shape galaxies today. These black holes could explain dark matter, one of the biggest unsolved questions in cosmology.

18:02
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Phys

Bonobos' peaceful reputation cracks after a rival group attack leaves an infant dead‎

Bonobos are often described as gentle apes, generally calm primates that are seen as peacemakers in the animal kingdom. But this reputation may be coming under attack as a new study published in Scientific Reports reveals that wild bonobos may engage in group aggression that is more dangerous than previously thought.

17:55
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Phys

The quietest place we've ever listened from‎

We have been searching for signals from other civilizations for over sixty years. Radio telescopes on Earth have swept the sky, listened patiently, and found nothing but silence. It is a search that demands extraordinary sensitivity and that is the problem. Earth and our very existence itself are getting in the way.

17:43
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Phys

Droplet impacts reveal surprising physics in shear-thickening fluids‎

From ketchup to quicksand, non-Newtonian fluids have long fascinated and puzzled scientists. Unlike ordinary fluids, their flow properties change depending on how much force is applied, but the precise mechanics governing this behavior remain poorly understood—particularly under rapid deformation. Now, a team led by Xiang Cheng at the University of Minnesota has used droplet impacts to probe these dynamics in new detail, uncovering behaviors which have eluded physicists so far. Their findings appear in Physical Review Letters.

17:43
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Phys

AI spots hidden behavior patterns in self-organizing bacteria‎

Life moves in mysterious ways—and perhaps especially so for organisms that undergo dramatic shifts in levels of self-organization, such as Myxococcus xanthus. A custom-built artificial intelligence system developed by Rice University researchers helped uncover how bacterial communities organize themselves, showing that the earliest moments of a biological transition carry far more information than previously considered.

17:23
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Phys

Researchers unveil new AI-driven system set to transform coral reef restoration‎

UK researchers have developed a first-of-its-kind bespoke AI system designed to assess coral health and detect early stress, helping to prevent restoration projects from failing. Led by PhD research student at the University of Derby, Nicole Yeomans, and marine scientist Professor Michael Sweet at the University of Derby, the system, named BlueBiome, is reimagining coral reef care by applying the same principles of preventive, precision health commonly used in human gut health.

17:23
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Phys

Next-generation atomic clock successfully tested at sea‎

Adelaide University researchers have successfully tested a new type of portable atomic clock at sea for the first time, using technology that could help power the next generation of navigation, communications and scientific systems. The research team, from the Institute for Photonics and Advanced Sensing (IPAS), developed the highly precise device and trialed it aboard a vessel provided by the Royal Australian Navy in July 2024. They have reported their findings in a new paper published in the journal Optica.

17:04
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Phys

Hazy, hot and… shady? How street trees counteract air pollution and heat in American cities‎

It's a catchy tune, but The Lovin Spoonful's "Summer in the City" doesn't paint the picture of an appealing environment with its description of a sidewalk as "hotter than a match head." New research from Northeastern University may offer relief from those conditions, however, finding that extreme heat and air pollution don't necessarily go hand in hand when the concrete jungle is made a little more green.

17:04
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Phys

Cosmic dust identified as the source of Venus' enigmatic lower haze‎

Venus, often called Earth's twin, is in fact a planet of extremes. Beneath its thick carbon dioxide atmosphere are crushing surface temperatures and dense clouds of sulfuric acid. While the planet's main cloud layer sits between 47 and 70 kilometers above the surface, scientists have long been puzzled by a mysterious layer of particles below 47 kilometers, known as the "lower haze." First detected by spacecraft in the 1970s, the origin of this haze remained unexplained for more than half a century.

16:45
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