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כתבות אחרונות מאתר 'Phys'
Phys

Solar panels on rewetted peatland could be a climate and nature win–win‎

Researchers in Germany have found that solar panels on rewetted peatland provide a unique habitat for bird species along with generating green energy and potentially locking up carbon. Installing solar panels on rewetted peatlands is a new type of land use, providing a way to generate green energy and reduce greenhouse gas emissions. Now, research from the University of Greifswald has found that this novel land use may also benefit nature. The findings are published in Ecological Solutions and Evidence.

07:25
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Phys

Mysterious signals keep coming from space: Astronomers find their 'Rosetta stone'‎

A pair of stars spiraling around each other. That's the origin of a new source of repeating radio bursts we've detected, called ASKAP J1745.

03:37
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Phys

AI spots smuggled seahorses, shark fins and sea cucumbers with 92% accuracy‎

When we think of wildlife trafficking, we might think of rhino horns or baby orangutans sold as pets—but the smuggling of sea creatures, a less well-known crime, is just as damaging to marine ecosystems. Unfortunately, many commonly smuggled marine wildlife items, like shark fins, can be hidden in baggage or parcels and carried across borders with relative ease, without being detected. To get around this, scientists used AI to develop an algorithm that can detect samples of commonly trafficked sea creatures—shark fins, seahorses, and sea cucumber—with 92% accuracy.

02:05
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Phys

'All-in-one' platform developed for multiple trait stacking in crops‎

A major goal of modern crop breeding is to efficiently combine multiple desirable traits by "stacking" the favorable gene variants (alleles) that contribute to those traits in a single crop variety. However, current strategies are often time-consuming and inefficient.

01:06
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Phys

Could the Milky Way's missing mass be hiding in a swarm of interstellar comets?‎

3I/ATLAS has caused quite a stir over the last year, inviting astronomers to update what they know about other solar systems as well as our own. However, this third interstellar visitor may have an unexpected impact on our understanding of dark matter. A new paper, available on the arXiv preprint server from researchers at the University of Hamburg, attempts to calculate the impact that the presence of large amounts of interstellar objects, or ISOs, would have on our calculation of dark matter in our galaxy.

00:02
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Phys

How gene swapping helped build the planet's decomposers‎

Decomposers are crucial for keeping Earth habitable, breaking down dead biomass and returning key nutrients, such as carbon, nitrogen and phosphorus, to the ecosystem. Most decomposers, including fungi, survive through osmotrophy—a means of feeding by absorbing dissolved nutrients rather than engulfing prey. But how this method of feeding repeatedly arose across the eukaryotic tree of life remains unclear.

23:24
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Phys

In Brazil's Cerrado region, Indigenous fire practices reshape wildfire strategy‎

Fire began crackling like approaching rain on a recent morning in the Xerente Indigenous Territory in Tocantins in northern Brazil. But the Indigenous residents weren't afraid and didn't rush to put it out.

23:04
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Phys

Lunar orbiter concept could reveal five key elements across moon in two years‎

Researchers from Tokyo Metropolitan University have used simulations to show that a newly developed, compact X-ray telescope could be used to map the chemical composition of the entire lunar surface, a vital breakthrough for understanding its geological evolution. Detailed modeling of the detector and a realistic satellite mission show that two years would be enough to map five key elements, while an array of 5-by-5 detectors could improve resolution and get results faster.

22:55
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Phys

Continuous stirring made early life-like RNA systems more extinction-prone, experiment shows‎

Recent research showed that an artificially constructed self-replicating RNA system modeling primitive life at the origin of life evolved to become more prone to extinction under certain experimental conditions.

22:41
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Phys

Dynamic terahertz wavefront control using stretchable single-walled carbon nanotube-based metasurfaces‎

The terahertz (THz) frequency regime, sitting between microwaves and infrared light, has long promised revolutionary advances in wireless communication, security imaging and nondestructive sensing. A key roadblock, however, has been the lack of compact, dynamically tunable components capable of manipulating THz beams on demand.

22:41
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