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כתבות אחרונות מאתר 'Phys'
Phys

Single-shot imaging captures more information about ultrafast microscopic processes than previously possible‎

Researchers have developed a new imaging technique that captures more information about ultrafast processes in the microscopic world than was previously possible. The technique offers scientists a powerful new tool to observe and analyze a wide range of ultrafast phenomena—which can happen in hundreds of femtoseconds—with unprecedented detail and speed. Writing in Optica, the researchers describe their new ultrafast imaging technique, called compressed spectral-temporal coherent modulation femtosecond imaging (CST-CMFI).

17:03
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Phys

New solar telescope turns sunspots into exoplanet-finding weapons‎

The Paranal solar ESPRESSO Telescope (PoET), installed at the European Southern Observatory's (ESO's) Paranal site in Chile, has made its first observations. The telescope will work with ESO's ESPRESSO instrument to study the sun in detail. Described as a solar telescope for planet hunters, PoET aims to understand how the variation in the light from stars like the sun can mask the presence of planets orbiting them, helping us in our search for worlds outside the solar system.

17:03
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Phys

Why treelines don't simply rise with the climate‎

A global study by the University of Basel, Switzerland, reveals a surprising picture: While 42% of treelines worldwide are shifting upslope, 25% are retreating. This seemingly contradictory trend involves more than just warming. Climate change and human land use are interacting.

16:49
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Phys

New Hampshire ski industry concerned about climate change‎

New research out of the University of New Hampshire reveals that the majority of New Hampshire ski industry professionals are concerned about the effects of global warming on the ski industry, which generates close to $278.8 million each season in the Granite State, and believe more should be done. The study released by UNH's Carsey School of Public Policy shows that this shared unease suggests a readiness to adopt sustainable practices and advocate for industry-wide adaptations.

16:49
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Phys

New AI method flags fluid flow tipping points before simulations break down‎

David J. Silvester, a mathematics professor at the University of Manchester, has developed a novel machine-learning method to detect sudden changes in fluid behavior, improving speed and the cost of identifying these instabilities and overcoming one of the major obstacles faced when using machine learning to simulate physical systems. The findings are published in the Journal of Computational Physics.

16:01
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Phys

Preventing the spread of a deadly virus to Pennsylvania's rabbits and hares‎

Rabbit hemorrhagic disease virus type 2 is a terrible way for any animal to die, especially creatures as gentle as these. Highly contagious and lethal, it threatens wild and domestic rabbits. First detected in the United States in 2020, it has rapidly spread throughout the western states, becoming endemic as far as South Dakota, Kansas, and Texas. Two years later, Pennsylvania had its first two cases at a Fayette County domestic farmed rabbit facility.

16:01
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Phys

Scientists discover the antibacterial potential of 'hero' Korean skincare ingredient‎

Fans of Korean skincare may be familiar with "hero ingredient" Madecassic acid for its skin-soothing properties, but researchers at Kent have revealed its greater potential for use in the fight against antibiotic resistance.

15:39
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Phys

World's largest study of human flourishing opens its data to the public‎

The Global Flourishing Study (GFS), the most comprehensive empirical investigation of human flourishing ever undertaken, has made its first two waves of data publicly available through the Center for Open Science at no cost and without preregistration. Researchers, journalists, policymakers and the public can now freely access the dataset on the Open Science Framework (OSF) website.

14:06
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Phys

'Chills': Artemis astronauts say lunar flyby still washing over them‎

They took thousands of photographs and documented copious observations on their voyage around the moon, but as they sped closer to home the Artemis astronauts said Wednesday they have barely started processing the extraordinary experience they shared.

13:51
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Phys

Artemis crew's families enthralled by messages from space‎

A week after astronaut Jeremy Hansen blasted off on the historic Artemis II mission to the moon, his wife Catherine recalled the anxiety and thrill of witnessing the journey from afar.

13:22
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