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Medical Xpress / Too hot to think? Why extreme heat can affect how well our brain works

Ever feel that the arrival of summer sun makes you feel a bit dopey? You wouldn't be the only one. Soaring temperatures are known for their ability to slow our thought processes, making even everyday tasks seem like a baffling ...

23 minutes ago
Phys.org / Green roofs can help cool cities in the summer heat, but building them is only the first step. Many don't survive

As summer temperatures soar across the United States and Europe, cities are being forced to confront the difficult reality that they're getting dangerously hot.

23 minutes ago
Phys.org / Guangzhou crucibles provide earliest direct evidence of brass-making in East Asia

For centuries, scholars have read ancient documents describing the production of brass in 10th-century A.D. China. The problem was that the earliest physical evidence of brass production would be found nearly 600 years later, ...

3 hours ago
Phys.org / Airborne observatory improves views of solar corona during cloud-covered eclipse

Using unique equipment installed on NASA's WB-57 aircraft flying above heavy clouds off the coast of Iceland, a Southwest Research Institute-led team successfully observed a total solar eclipse on Wednesday. The high-altitude ...

1 hour ago
Phys.org / Mysterious Cygnus Bubble may trace back to microquasar, astronomers suggest

Astronomers have proposed a new explanation for the mysterious Cygnus Bubble, a vast cloud of ultra-high-energy gamma rays stretching thousands of light-years across the sky. While the bubble has generally been linked to ...

5 hours ago
Phys.org / Cells pulse together as they grow—and malignant cells pulse the longest

Epithelial cells are the tiny shields that line and protect our bodies. In a developing embryo, epithelial cells grow, divide and move into positions to form the outer layers of our skin and the surfaces of our organs and ...

3 hours ago
Medical Xpress / Curiosity has its own neural signal: Brain separates valuable information from water rewards in mice

Often, humans and other animals seek information that can help them complete tasks and attain desired rewards. In some cases, however, they seek information driven simply by curiosity and a desire to obtain knowledge for ...

5 hours ago
Phys.org / Wheat gene behind Hessian fly resistance cloned after 50-year search

Researchers at the University of Maryland and their collaborators have cloned a gene that makes wheat resistant to feeding by Hessian fly larvae and demonstrated its direct interaction with a protein produced by the insect. ...

1 hour ago
Dialog / Bound gravitational waves inspired by photonic systems

When one mentions "waves," we immediately think of a perturbation that propagates. This applies to waves on the shore, sound waves in the air or electromagnetic waves that we use to transmit information via optical fibers. ...

3 hours ago
Tech Xplore / AI agents struggle to perform original scientific research

Among the many predictions about the future of artificial intelligence is that models will one day be able to conduct scientific research on their own, leaving humans out of the equation. Already, they can write code, run ...

7 hours ago
Phys.org / Quality vs. quantity: Why 'super-shedders' may not be the superspreaders of disease outbreaks

A host that sheds an abundance of parasites might seem like an obvious disease-spreading threat. But new research suggests that shedding large volumes of parasites does not dictate transmission efficiency—and "super-shedders" ...

7 hours ago
Phys.org / Europe's mountain summits are warming—vegetation is responding in surprisingly different ways

Decades of climate change have not left Europe's mountain vegetation unscathed. However, the changes observed do not always match expectations. As a new international study by a research team led by researchers from the University ...

2 hours ago