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כתבות אחרונות מאתר 'Phys'
Phys

Deep-sea crustaceans caught hitching rides on giant sea spiders‎

Some types of marine life appear to have it easy. While exploring thousands of meters below the waves in the Chilean Margin in the southeastern Pacific Ocean, scientists observed tiny shrimp-like crustaceans known as amphipods (Mesopleustes abyssorum) clinging tightly to much larger giant sea spiders (Colossendeis colossea) that were scuttling on the ocean floor.

17:51
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Phys

AI is shaping kids. What if kids could shape AI, too?‎

Vanderbilt University's Golnaz Arastoopour Irgens, assistant professor of human-centered learning technologies at Peabody College of Education and Human Development, partnered with Sarah K. Burriss (Ph.D. '23, Peabody's Department of Teaching and Learning), assistant professor of the practice at the College of Connected Computing, to rethink how kids should learn about artificial intelligence.

17:43
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Phys

Robotic lab sets up and runs optics experiments on demand‎

Every new generation of phone display, television screen and solar panel is the result of precision optics experiments, which use lasers and other light sources to measure the optical properties of candidate materials. These experiments can take months to run, requiring scientists to meticulously angle and adjust delicate light sources, mirrors, cameras and other components in a process of careful, constant tuning that can be physically tedious and time-consuming.

17:43
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Phys

Temperature measurement error may cause climate-impact studies to understate impacts by 15% or more‎

When policymakers and city officials plan for climate change, they rely on economic studies showing how extreme heat affects violent crime, public health, energy grids and crop yields.

17:24
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Phys

Beaver reintroduction improves peatland water storage and drought resilience‎

A study led by a doctoral researcher at the University of Liverpool has found that beavers may help restore degraded peatlands by keeping landscapes wetter and making them more resilient to drought.

17:24
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Phys

Is dark matter 'natural?' Physicist puts the question to the test‎

Dark matter is one of the oldest open problems in physics. It makes up most of the matter in the universe and shapes how galaxies form and move, yet no one has ever directly detected it. Physicists have proposed dozens of candidates to explain it: exotic new particles, black holes formed moments after the Big Bang and more.

17:11
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Phys

Handheld scanner delivers lab-quality chemical composition maps using infrared light‎

Researchers have developed a compact, handheld mid-infrared imaging spectrometer that can produce high-resolution chemical maps of a sample without using stains or labels. With further development, the handheld device might provide a portable and easy-to-use way to map the molecular makeup of tissues and other samples.

17:02
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Phys

We could soon be able to track changes in Australia's forests in near‑real time—using satellites‎

Forests and woodlands cover millions of hectares across Australia, from tropical rainforests and temperate eucalypt forests to the vast woodlands and shrublands of the arid interior. They store enormous amounts of carbon, support biodiversity, regulate water supplies and help buffer the impacts of climate change. Yet we know surprisingly little about how these important ecosystems are changing over time.

17:02
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Phys

New porous diamond created by researchers‎

Researchers at the University of Gothenburg have created a carbon material with a three-dimensional structure. The material, named diamondiyne, can be described as a porous diamond with the same basic shape as a tetrahedron.

16:43
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Phys

Earth's atmosphere is getting less dusty: That could be adding to global warming‎

Atmospheric desert dust has long swirled around the globe, but a new UCLA study presents the strongest evidence yet that global dust is mysteriously decreasing. Because atmospheric dust has a slight overall cooling effect on the climate, the researchers say its decrease may have contributed modestly to recent climate warming.

16:43
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