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כתבות אחרונות מאתר 'Phys'
Phys

Different text genres help doctoral students adapt their writing to reach new readers‎

An academic abstract, a blog post and a public outreach article all place different demands on the writer. Readers' prior knowledge varies, as does the purpose of the text and what needs explaining. Mastering one kind of text therefore does not automatically mean being able to write another.

21:49
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Phys

Two paths, one flux: Trapped ions simulate Aharonov–Bohm interference in a lattice gauge theory‎

In a new Nature Physics study, researchers demonstrated the Aharonov-Bohm effect in a quantum simulation of a lattice gauge theory using a hybrid trapped-ion quantum computer.

20:18
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Phys

Earth's gravity may have kept the early moon's volcanic heart beating‎

We typically think of the moon as a static, floating object that has remained the same for basically its entire lifetime, with an occasional asteroid impact serving as an exception. That understanding is grounded in physics—the moon should have cooled rapidly after forming when a huge protoplanet hit the early Earth around 4.5 billion years ago. But some lunar material returned from the Chang'e-5 mission was notably formed only around 2 billion years ago, yet appeared to be volcanic in origin.

20:18
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Phys

Heavy rain can more than double glacier speeds in Alaska‎

Glaciers are often thought of as unyielding blocks of ice that slowly carve out the landscape as they move downhill by gravity. But sometimes their slow crawl becomes a surge that sees them move orders of magnitude faster than their usual speed.

18:47
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Phys

Scientists discover new jellyfish species in waters off Alicante in Spain‎

The Mediterranean Sea still holds species unknown to science. One of them is Copula lucentia, a tiny jellyfish measuring just a few millimeters. Discovered off El Campello, in Alicante, it was formally described in 2024 by a research team at the University of Alicante (UA) Marine Laboratory in Dénia, which forms part of the university's Ramón Margalef Multidisciplinary Institute for Environmental Research.

18:47
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Phys

The introduction of a medieval public health system exposed the population to roundworm‎

Medieval health and sanitation efforts involved deliberate interventions; however, some of these measures had the opposite effect, leading to an increased spread of disease in Trondheim.

17:16
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Phys

Theory predicting an older universe without dark matter or dark energy passes key cosmological tests‎

An alternative model in which the universe is 26.7 billion years old and needs neither dark matter nor dark energy has held up against several major cosmology tests, according to a new University of Ottawa study. The research, titled "A Big Bang Nucleosynthesis Consistency Test of the CCC+TL Cosmology," is published in the journal Universe.

17:16
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Phys

Why treating soil acidity crop by crop is no longer enough for prairie farmers‎

To protect their future harvests, Western Canadian farmers need to manage soil acidity across their entire multiyear rotation rather than crop by crop, long-term research from the University of Alberta suggests.

15:45
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Phys

Diwali celebrations coincide with worsening air. Here's how to stay safer‎

For people across South Asia, especially in northern India, Diwali celebrations coincide with the return of hazardous winter air, raising concerns about how to celebrate safely.

14:14
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Phys

Polar vortex faltering weeks earlier than ever recorded‎

Meteorologists said Friday they were observing an unprecedented early disruption of the polar vortex, raising the risk of cold snaps across the Northern Hemisphere, though there remains significant uncertainty.

14:14
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