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כתבות אחרונות מאתר 'Phys'
Phys

A simpler way to count cool roofs' climate payoff could reshape local carbon planning‎

A new study by Hashem Akbari, a professor in the Department of Building, Civil and Environmental Engineering, offers a simplified way of calculating the degree to which surface reflectivity, known as albedo, can offset carbon dioxide (CO₂) emissions. The method, which builds on previous research, makes it easier to calculate these effects at regional and national scales using widely available weather data.

01:45
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Phys

Graphene as a charge mirror: Why water droplets 'see' graphene—but don't show it‎

Research on graphene has made great strides in recent years. However, to fully harness its potential in applications such as desalination membranes, sensors, and energy storage and conversion, a deeper understanding of the interaction between graphene and water is required.

01:45
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Phys

Catching distant gamma-ray explosions with precisely aligned X-ray optics‎

Gamma-ray bursts (GRBs) rank among the most powerful explosions in the universe, releasing immense energy in intense flashes of gamma rays. The most distant GRBs originate from the era when the first stars and galaxies formed. Detecting them allows astronomers to probe the early universe and understand how the first heavy elements formed and how the earliest stellar populations lived and died. Missions like HiZ-GUNDAM, a satellite planned for launch in the 2030s by the Japan Aerospace Exploration Agency (JAXA), aim to detect these distant explosions in real time.

01:33
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Phys

Mushroom slime removes up to 98.4% of microplastics from water, researchers report‎

Microplastics and nanoplastics are tiny plastic particles that result from the breakdown of larger plastic products due to sunlight, waves, and other environmental conditions. In recent years, these particles have been increasingly detected in aquatic environments, raising concerns about their potential harmful effects on aquatic life and ecosystems. Even though awareness of this issue is growing, there is still no safe, practical, and established method to filter these particles from polluted water.

01:25
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Phys

Using computed tomography to study DNA from ancient humans without destroying samples‎

Research on ancient DNA is surging, but how can scientists ensure that human remains of irreplaceable significance are preserved? This is the question investigated by an international research team led by the University of Bonn. Their findings have now been published in the journal PLOS One.

01:25
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Phys

Virtual sunspots help AI find rare magnetic matches in vast solar archives‎

Research led by Southwest Research Institute (SwRI) has integrated three types of machine learning models to generate solar magnetic patches with physical properties and used those as a query to find matching patches in real observations. This elevates generative artificial intelligence (AI) from a means to produce artificial data to a novel tool for scientific data interrogation, supporting applicability beyond the heliophysics domain. The paper is published in The Astrophysical Journal Supplement Series.

01:14
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Phys

Meet kungaka—'the hidden one.' This ancient lizard could be the rarest reptile in Australia‎

Hidden among the red sandstone escarpments of Mutawintji National Park in western New South Wales lives a rare lizard, long isolated in this arid landscape.

01:06
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Phys

Not so dark with Alena Tensor: Math framework could explain dark matter without invisible particles‎

Alena Tensor is a relatively new mathematical approach that allows for arbitrary curving and straightening of analyzed spacetimes. As it turns out, generalizing this model to all known fields and fully describing matter, spontaneously gives rise to the phenomena known from research on dark matter and dark energy.

01:06
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Phys

After 9,000 years of cultivation, rice has reached its thermal limit‎

Rice has historically been a heat-loving plant. In fact, the wild ancestor of cultivated rice once grew primarily on the sweltering, rain-swept Malay and Indochina peninsulas as well as the islands of Southeast Asia. It wasn't until Earth's climate warmed after the last ice age that wild rice substantially spread into central China and South Asia, where it was independently domesticated by humans in two events that arguably rank among the most important in the history of our species.

00:53
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Phys

Simple rules guide how proteins assemble and evolve, study finds‎

Researchers at Ben-Gurion University of the Negev have identified simple rules that explain how complex protein structures assemble correctly and remain functional over time, despite having many theoretically possible configurations. The study, published in Proceedings of the National Academy of Sciences, focuses on bacterioferritin, a bacterial protein complex responsible for safely storing iron. Unlike simpler protein assemblies made of identical parts, many bacterioferritins are built from two different types of subunits, each with a distinct role.

00:48
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