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כתבות אחרונות מאתר 'Phys'
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Vulcan rocket launch suffers fiery booster issue but makes it to space, company says‎

United Launch Alliance suffered yet another fiery burn-through on one of its solid rocket boosters during a national security mission Thursday.

05:18
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Phys

Swarms of AI bots can sway people's beliefs, threatening democracy‎

In mid-2023, around the time Elon Musk rebranded Twitter as X but before he discontinued free academic access to the platform's data, my colleagues and I looked for signs of social bot accounts posting content generated by artificial intelligence. Social bots are AI software that produce content and interact with people on social media. We uncovered a network of over a thousand bots involved in crypto scams. We dubbed this the "fox8" botnet after one of the fake news websites it was designed to amplify.

05:18
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Phys

Researchers identify key genes controlling rice tiller angle‎

Rice tiller angle is an important trait affecting population structure, light utilization, planting density, and yield potential. Although several genes affecting tiller angle have been reported, the upstream regulatory networks connecting gravity sensing and hormone distribution have remained largely unknown. Researchers from the Hefei Institute of Physical Science of the Chinese Academy of Sciences have identified a key molecular module that regulates rice plant architecture. Their study is published in Plant Communications.

05:18
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Phys

How children's play with everyday objects can encourage skills needed for STEM success‎

Parents looking to support their children's learning in science, technology, engineering and mathematics (STEM) will find no shortage of branded STEM sets, subscription science boxes, private coding programs or educational toys for kids.

05:18
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Phys

What dating apps are really optimizing. Hint: It isn't love‎

In the weeks leading up to Valentine's Day, dating apps typically see a spike in new users and activity. More profiles are created, more messages sent, more swipes logged.

05:18
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Phys

Rare Red Rock sunflower at high risk of extinction, petition argues‎

About 3 million people visit Red Rock Canyon outside of Las Vegas every year, but few have noticed the tiny yellow sunflower that has called it home for centuries. It may face extinction without federal protection, two groups say.

03:47
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Phys

Protecting vertebrates from biodiversity loss: Study identifies priority threats‎

The most effective conservation strategies for protecting vertebrates on a global scale are those aimed at mitigating the effects of overexploitation, habitat loss and climate change, which are the most widespread threats with the greatest impact across the planet. This is one of the main conclusions of an article led by researchers Pol Capdevila, from the Faculty of Biology and the Biodiversity Research Institute (IRBio) at the University of Barcelona, and Duncan O'Brien, from the University of Bristol (United Kingdom).

03:47
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Phys

UK space firm Skyrora explores buying assets of struggling rival Orbex‎

British company Skyrora, which designs and builds rockets to carry small satellites into space, announced Thursday it could acquire "select" assets from its stricken rival Orbex, including its spaceport in Scotland.

03:47
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Phys

Wearable sensor can detect dangerous ammonia gas through color and electronics‎

Ammonia (NH3)—the second-most-produced chemical globally—has proven to be highly important in furthering human civilization over the centuries, both in terms of technological capabilities and innovation potential. It is widely utilized in fertilizers, refrigerants, biomarkers, and next-generation fuel. Unfortunately, NH3 is highly toxic, resulting in complications such as respiratory irritation, chest pain, pulmonary edema, and even death. This makes effective and rapid NH3 sensing and detection capabilities indispensable in industries or environments prone to NH3 leaks.

03:47
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Phys

Basic research on Listeria bacteria leads to unique cancer therapy‎

After nearly 40 years of research on how Listeria bacteria manipulate our cells and battle our immune system to cause listeriosis, Daniel Portnoy and his colleagues have discovered a way to turn the bacteria into a potent booster of the immune system—and a potential weapon against cancer.

02:26
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