ניווט נגישות
כתבות אחרונות מאתר 'Phys'
Phys

World-famous or local legend? New study investigates global and local forms of collective memory and group identity‎

Napoleon Bonaparte and Bernardo O'Higgins: two 19th-century military leaders renowned to this day in their native countries of France and Chile. Yet, while Napoleon's name and exploits are known throughout the world, O'Higgins remains largely obscure outside his homeland. This phenomenon demonstrates the distinction between global and local collective memory—the shared knowledge of the past that shapes group identity—and it is the topic of newly published research from Constructor University's Professor Dr. Mariana Macedo together with Dr. Melanie Oyarzun, Professor Dr. Cristian Candia and Professor Dr. César A. Hidalgo.

18:56
תפריט כתבה
Phys

Lizard tail preserved in amber sheds light on a 100-million-year-old defense mechanism‎

A lizard making a dramatic escape, leaving its tail wriggling behind as it darts to safety, is an image familiar to many. Tail-shedding is one of the most widespread defenses against predators among living lizards, yet tracing the origins of this extraordinary ability has proved to be surprisingly difficult—how can we tell when this escape tactic first arose in lizards?

18:56
תפריט כתבה
Phys

Solving an ancient cold case: Roman was brutally murdered‎

This 2,000-year-old cold case offered a wealth of information, Leiden archaeologists Carol van Driel-Murray and Mark Driessen explain. Few skeletons from the late Iron Age and early Roman era have been preserved, making this largely intact skeleton a valuable research resource. In their new book Victims of Violence from the Early Roman Fort Velsen, Van Driel-Murray and Driessen reconstruct the cause of this man's death. This interdisciplinary study combined archaeological, historical and forensic insights.

18:56
תפריט כתבה
Phys

Britain's 1972 school reform may have lowered dementia diagnoses half a century later‎

A new study provides perhaps the strongest evidence yet that education can help mitigate long-term dementia risk.

18:56
תפריט כתבה
Phys

Japan's largest marine DNA study detects 126 fish species farther north than previously recorded‎

As climate change reshapes habitats both on land and at sea, you might go to the beach one day, only to find yourself in a place that looks nothing like you remember, around sea creatures you don't recognize.

18:56
תפריט כתבה
Phys

Armored amphibian lived entirely at sea 237 million years ago, fossils suggest‎

Scientists report fossil evidence of the first fully marine amphibian in a study from the University of California, Davis; Peking University; and the Geological Museum of Guizhou. The amphibian is an armored, giant salamander–sized, bottom-dwelling ocean creature that the researchers named Gerrothorax maritimus.

18:56
תפריט כתבה
Phys

Physicists reveal new paradigm for fiber growth in neurodegenerative diseases‎

Some proteins that are linked to neurodegenerative diseases can form both liquid droplets and amyloid fibers. But how are these two states connected, and where do the fibers grow? Leiden physicists Liru Feng and Louise Jawerth have discovered a counter-intuitive mechanism.

17:44
תפריט כתבה
Phys

An American startup wants to sell sunlight after dark. Who gets a say?‎

A U.S. startup has booked two Indian rocket launches to test a planned service no company has sold before: sunlight at night.

17:44
תפריט כתבה
Phys

Mapping the hidden global labor powering AI‎

Most people know by now that artificial intelligence powers much of the online world, sifting through social media posts, planning driving routes or helping to choose a movie to watch. But what goes largely unseen is the human labor—often performed by people working for low wages in the Global South—that makes this careful algorithmic lifestyle curation possible.

17:44
תפריט כתבה
Phys

Sediment core reveals volcanic eruption preceded ancient cold spell by about 150 years‎

A new study led by an international research team including scientists at the University of South Carolina challenges the idea that the ancient Laacher See volcanic eruption in western Europe triggered a significant climate-cooling period affecting central Europe and the Arctic nearly 13,000 years ago.

17:44
תפריט כתבה
דיווח על כתבה זו הסתרת כתבות מאתר זה המשך קריאה באתר המקור