ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

Childless women who shape history and culture are still judged on not being mothers‎

The women I return to most—Elizabeth I, her potential heir Arbella Stuart (and rival to James Charles Stuart, later King James I), Virginia Woolf, Katharine Hepburn, Debbie Harry—never had children. Their reasons were wildly different: some chose not to, some were prevented, and some never got the chance. The pattern raises two questions. Did their work or their position cost them their choice? And why does it seem to matter, overshadowing the legacies and achievements of great women?

21:05
תפריט כתבה
Phys

Blue-light tools let researchers track, redirect and sever cells' transport routes‎

Light is fundamental to human life—without it, we'd be hungry, cold and blind. But what if the same light that sustains us could also be used to control and observe parts of cells within our bodies?

21:05
תפריט כתבה
Phys

New model explains why glass becomes less transparent to terahertz light‎

Electromagnetic waves in the gigahertz (GHz) range, such as those used in mobile communications, can readily pass through many types of glass. However, transmission decreases significantly at terahertz frequencies above a characteristic threshold.

20:48
תפריט כתבה
Phys

Scientists find lunar 'magnetic fossil' in Chang'e-6 samples‎

The moon no longer has a global magnetic field, but lunar rocks and soils still contain records of ancient magnetism. Studying the magnetic minerals in these samples can help scientists understand how the moon's magnetic field evolved over time.

20:45
תפריט כתבה
Phys

Neuroproteins are potential diagnostic tool for sick foals‎

Researchers from North Carolina State University have found that blood serum concentrations of neuroproteins and neurosteroids are associated with neonatal maladjustment syndrome (NMS) in newborn foals. The work could lead to better diagnostic tools and potential therapies.

20:45
תפריט כתבה
Phys

Automated lipid nanoparticle production could accelerate the development of RNA therapies‎

RNA vaccines and other nucleic acid therapeutics are typically packaged within fatty molecules known as lipid nanoparticles (LNPs). MIT researchers have now developed a way to produce these particles much more quickly and with more precise control over their size and shape.

20:25
תפריט כתבה
Phys

Study examines risks companies face when relying too heavily on AI systems‎

A new framework for thinking about artificial intelligence at work starts with a question companies have spent relatively little time asking.

20:25
תפריט כתבה
Phys

For principals, not all stress is equal‎

Student discipline, staffing problems, frustrated parents—school principals spend their days moving from one problem to the next.

20:02
תפריט כתבה
Phys

Laser temporarily reprograms ultrathin optical device without electrodes‎

A tiny device that can be reprogrammed using a laser could lead to adaptable devices for computing, imaging and telecommunications. Most devices are built to perform a particular job. If you want them to do something different, you generally need to replace a component, rewire the system or manufacture a new one. For example, every time you ask a large language model like ChatGPT or Claude a question, many electrical signals race through computer chips, carrying information and performing calculations. This takes energy, and lots of it.

20:02
תפריט כתבה
Phys

Yemen's Houthis move to control crucial waterway—our research maps the countries most at risk‎

The advance of the Iran-aligned Houthi rebel group in Yemen has driven more than 130,000 people from their homes since the beginning of September, deepening the humanitarian crisis in an already poor country with a long history of domestic conflict.

19:46
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור