Researchers Solve 20-year-old Paradox in Solar Physics

Researchers solve 20-year-old paradox in solar physics
Image of the solar atmosphere showing a coronal mass ejection. Credit: NASA/GSFC/SDO

In 1998, the journal Nature published a seminal letter concluding that a mysterious signal, which had been discovered while analyzing the polarization of sunlight, implies that the solar chromosphere (an important layer of the solar atmosphere) is practically unmagnetised, in sharp contradiction with common wisdom. This paradox motivated laboratory experiments and theoretical investigations, which instead of providing a solution, raised new issues, and even led some scientists to question the quantum theory of matter-radiation interaction.

Researchers at the Istituto Ricerche Solari (IRSOL) in Locarno-Monti (affiliated to USI Università della Svizzera italiana), and the Instituto de Astrofísica de C...

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How Microbes can Exacerbate Cognitive Decline

The gut microbiota comprises trillions of bacteria and other microbes that live in the intestines and affect health in multiple ways. Alpha Tauri 3D Graphics/Shutterstock

Recent research has found that changes in the gut microbiota — the trillions of bacteria and other microbes that live in the intestines — can alter the brain and behavior. Now, a study led by scientists at UCLA could elucidate how and why that phenomenon occurs.

In the experiment, which was conducted with mice, researchers found that gut microbes can exacerbate the effects of cognitive impairment because of how they affect the hippocampus, the region of the brain that is critical for memory and learning...

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Scientists develop a Stretchable Sweat-Powered Battery for Wearable Tech

Inavate Magazine

Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a soft and stretchable battery that is powered by human perspiration.

The prototype battery consists of printed silver flake electrodes that generate electricity in the presence of sweat. Measuring 2 cm by 2 cm and as flat as a small paper bandage, the battery is affixed to a flexible and sweat absorbent textile that is stretchable and attachable to wearable devices, like watches, wrist bands or arm straps.

To demonstrate its potential use when it becomes incorporated in wearable biosensors and other electronic devices, the team of scientists tested their device with artificial human sweat.

In a separate trial, the team reported that an individual wearing the battery around their wrist ...

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Most Detailed–ever Images of Galaxies Revealed

Most detailed-ever images of galaxies revealed
An image showing what the radio emission looks like in LOFAR’s high resolution, using a galaxy from Morabito et al. (2021). The improved resolution means we can see all the jet details. Credit: L.K. Morabito / DESI Legacy Imaging Surveys

Astronomers have published the most detailed images seen of galaxies beyond our own yet, revealing their inner workings in unprecedented detail.

The images were created from data collected by the Low Frequency Array (LOFAR), a network of more than 70,000 small antennae spread across nine European countries. The results come from the team’s years of work, led by Dr. Leah Morabito at Durham University. The team was supported in the UK by the Science and Technology Facilities Council (STFC).

As well as supporting science exploitation, STFC also fu...

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