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כתבות אחרונות מאתר 'Phys'
Phys

Why marine heat waves and acidification strike together‎

Marine heat waves and extreme ocean acidification events are each damaging on their own. But when both stressors hit simultaneously, their individual effects can be exacerbated.

01:43
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Phys

Supersized quantum sensors make faint photons easier to catch‎

Our everyday life is flooded with photons, the quantum building blocks of light. For cutting-edge technology, from quantum computing to deep-tissue imaging, detecting every single photon counts.

01:32
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Phys

Catching cow burps in real time: Methane sensor matches industry monitor in early field test‎

Methane is a short-lived but powerful greenhouse gas; cutting methane emissions can slow near-term warming and improve air quality by reducing harmful ground-level ozone. As ruminants digest feed, they release methane—through burps. In fact, emissions from cattle are the largest source of human-caused methane emissions (roughly 25% of the total)—so reducing emissions from cattle is an important part of tackling climate change.

01:21
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Phys

The midlife clock is ticking: How we understand 'time left' can help us use it well‎

In Adaptation and the Life Cycle, psychologist Bernice Neugarten tells us that we arrive in our middle years by our social clocks, not our age.

01:21
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Phys

Molecular trick opens the door to a new generation of glass‎

Researchers at TU Dortmund University, Paderborn University, the University of Duisburg-Essen, and the University of Oxford have developed a new method for selectively modifying the internal structure of specific types of glass. The study, published in the journal Nature Materials, shows how adding an organic molecule during melting causes the chemical bonds in the material to rearrange. The process reduces the required processing temperature, prevents the substance from decomposing, and allows the magnetic and optical properties to be precisely tuned. These specialized glasses are used, among other things, in gas storage, batteries, optical applications and catalysis.

01:15
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Phys

Wildlife trafficking spreads across social media, putting thousands of species at risk‎

Researchers monitoring online activity for six weeks in mid-2025 found primates, birds, snakes, frogs, orchids and many other wildlife groups advertised for sale across Facebook, Instagram, TikTok and YouTube. Wildlife is increasingly being trafficked through online platforms. Online illegal wildlife trade poses significant risks to species, ecosystems, and animal and public health.

01:07
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Phys

Human rights rankings reveal surprising over- and underperformers‎

When it comes to human rights, it probably won't surprise you that Scandinavian countries perform well by statistical measures, along with Canada and Australia. But did you know that Mozambique, the Philippines, and Rwanda are also considered "overperformers," meaning that they score higher on human rights than expected?

01:07
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Phys

Temperature-tunable micropillars enable programmable sorting of particles and cells‎

A programmable microfluidic device developed at the Institute of Science Tokyo, Japan, combines deterministic lateral displacement, a microfluidic technique used to separate particles according to size, with temperature-responsive polymer micropillars to dynamically change separation conditions along a single channel. Using this device, researchers successfully separated multiple particle populations. Additionally, they efficiently isolated viable cancer cells, white blood cells and red blood cells from diluted whole blood.

00:45
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Phys

A bird's eye view of illegal logging and its consequences in the Peruvian Amazon‎

When I first arrived in Peru's Allpahuayo-Mishana National Reserve in 2005, a local youth surprised me with an offer to sell me a live owl, despite the fact that we were in a protected area where commercial hunting was prohibited. We set the owl free together, but this turned out to be an early lesson about the vulnerability of tropical protected areas to exploitation, even when laws and policies had been put in place to protect them. At that time, Allpahuayo-Mishana was a newly designated protected area with no paid staff except for its director, who was stationed in the nearby city of Iquitos.

00:45
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Phys

AI finds six ways to print rocket-grade alloy on commercial 3D printers‎

Washington State University researchers used artificial intelligence to find a more efficient, less expensive way to 3D-print a high-performance metal alloy, saving researchers from needing to painstakingly test more than 100 million options.

00:34
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