ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

Light offers a non-invasive alternative to painkillers in veterinary medicine‎

Turning on the light to turn off pain: This is the principle behind a new analgesic method called light-induced analgesia (LIA), discovered by scientists from the CNRS1 in rodents. Noninvasive and drug-free, LIA proves to be more effective and longer-lasting than commonly used analgesics such as ibuprofen. The study was published in Nature Communications on 26 January 2026.

23:18
תפריט כתבה
Phys

Global population living with extreme heat expected to double by 2050‎

A new University of Oxford study finds that almost half of the global population (3.79 billion) will be living with extreme heat by 2050 if the world reaches 2.0°C of global warming above pre-industrial levels—a scenario that climate scientists see as increasingly likely.

23:18
תפריט כתבה
Phys

Mini tornadoes spin out dried cellulose nanofibers‎

Researchers at the University of Maine and the U.S. Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) are collaborating on a new way to dry non-aggregated cellulose nanofiber—a material that could replace plastics in a wide range of products.

21:47
תפריט כתבה
Phys

Octopus numbers exploded around the UK's south-west coast in 2025. A new report explores this rare phenomenon‎

Cold spray whipped off the ropes as a diesel engine throbbed in the background. One by one, empty shellfish pots came over the side of the fishing boat, occasionally containing the remnants of crab and lobster claws and carapaces. Something strange was going on.

21:47
תפריט כתבה
Phys

What an ancient jellyfish can teach us about the evolution of sleep‎

An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops from roughly 36 pulses a minute to nearer 30, and the animal slips into a state that, despite its lack of a brain, resembles sleep.

21:47
תפריט כתבה
Phys

Life in fossil bones: What we can learn from tiny traces of ancient blood chemicals‎

Blood tests are useful tools for doctors and scientific researchers: they can reveal a lot about a body's health. Usually, a blood sample is taken to get a picture of the large molecules that are present, such as cholesterols, lipids and proteins. This is called a metabolic profile.

20:24
תפריט כתבה
Phys

Unlocking the high-performance potential of CF₃SF₄‎

Fluorine has changed the world of medicine. You might not see it, but newly approved drugs contain at least one fluorine atom. This tiny but powerful element is the "hidden engine" that makes our medications more stable and effective. Over the past decades, chemists have turned the trifluoromethyl (CF3) group into the "gold standard" in organic chemistry.

20:24
תפריט כתבה
Phys

Restoring ecosystem function can reverse desertification in Europe's drylands‎

Desertification is accelerating under climate change, threatening biodiversity, food security, and human well-being across the Mediterranean Basin, southern Europe, and the Middle East. Water scarcity and land degradation reduce carbon sequestration, increase soil erosion, and undermine rural livelihoods, pushing many dryland ecosystems into long-term decline.

20:24
תפריט כתבה
Phys

Why are some young people attracted to gangs and what are some evidence-based solutions?‎

Reports that Victoria Police are issuing anti-association orders to "youth gang members" has sparked fresh debate about how to best deal with youth gang violence in Australia.

20:24
תפריט כתבה
Phys

The New START treaty is ending. What does that mean for nuclear risk?‎

On February 4, the New START Treaty, the last remaining nuclear arms control agreement between the United States and Russia, is set to expire. Signed in 2010, the agreement caps deployed strategic nuclear forces at 1,550 warheads and 700 delivery systems. It also establishes one of the most extensive verification systems ever negotiated, including on-site inspections, continuous data exchanges, and government-to-government notifications about missile tests, weapons movements, and changes to nuclear forces.

20:24
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור