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כתבות אחרונות מאתר 'Phys'
Phys

Lumina simulation brings the early universe to life on a record-breaking scale‎

The James Webb Space Telescope (JWST) and Nancy Roman Space Telescope are revealing the universe's earliest chapters in detail. To help astronomers understand what they are seeing, researchers at the Center for Astrophysics | Harvard & Smithsonian have developed "Lumina," one of the largest and most detailed simulations ever created of the early universe.

02:58
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Phys

Experienced teachers are quitting or reducing their hours—they're struggling to cope‎

Teacher shortages are affecting school systems in countries across the world. Governments have responded with initiatives to attract graduates into teaching. While much attention has focused on increasing supply, far less attention has been paid to why experienced teachers decide to leave, despite the high costs of turnover in recruitment, training and lost continuity.

02:58
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Phys

Assessment tool helps schools look at students holistically‎

Researchers in the Neag School of Education are bringing a whole child screening assessment to a company that provides schools with a connected set of solutions that turn every student signal into timely, equitable, coordinated and measurable tools to track and manage supports.

01:27
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Phys

Australian coral reefs face risk of collapse within 50 years without drastic action, global assessment finds‎

Every shallow-water coral reef ecosystem in Australia faces an extremely high risk of collapse by 2075, driven largely by projected ocean warming, according to a global assessment.

22:26
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Phys

Supercurrent enables the reading of quantum information without destroying it‎

One of the fundamental challenges of quantum computing is obtaining information from a quantum bit, or qubit. Unlike a conventional bit, which can be read repeatedly without altering its content, direct measurement of a quantum system typically causes the state to collapse before it can be determined. In other words, reading the information modifies it.

22:26
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Phys

Crows make decisions twice as fast as humans and monkeys‎

University of Tübingen researchers have shown that crows, when confronted with a visual choice, make a decision twice as fast as humans and monkeys. In the experiment, two carrion crows took just 235 milliseconds on average to identify the direction in which a dot pattern was moving and to indicate their choice—while maintaining a high degree of accuracy.

22:26
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Phys

Storms batter Europe, hitting power supplies, flights and phones‎

Storms battered northern Europe on Sunday, cutting power to more than 150,000 homes, forcing the cancellation of hundreds of flights and silencing phone networks.

22:26
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Phys

Monarchs report their locations via… cellphone?‎

Who knew a monarch butterfly could borrow a cellphone to check in with friendly people he met on his journey? That is essentially what happens now that new technology has reduced the weight of a radio-pulse tag to less than half a gram (0.02 ounces).

22:26
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Phys

Milky Way's disk grew 'upside down,' with younger stars forming in ever-thinner layers‎

The Milky Way is home to hundreds of billions of stars arranged in a glorious spiral pattern. But beyond the obvious spiral, our galaxy has other physical characteristics. It's divided into a galactic bulge, a galactic disk and a galactic halo.

20:55
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Phys

How screening tools measure disadvantage may leave rural communities overlooked for public support‎

Whether a community is prioritized for public support can depend on how its needs are measured, according to new research from the University of New Hampshire. The study found significant differences in how government screening tools identify communities, particularly in rural areas where those differences could affect access to funding.

20:55
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