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    Helical Magnetic Fields: A Universal Mechanism for Jet Collimation?

    January 10, 2025, Categories  Physics, Astronomy/Space

    Results of the Rotation Measure analysis in the HH80-81 jet. The left image shows the streamline image of the component of the magnetic field parallel to the plane of the sky. In the middle panel, the color scale of the RM indicates the direction of the magnetic field along the line of sight, i.e., red, away from the observer, and blue, towards the observer. The right panel shows a scheme depicting the 3D configuration of the magnetic field, exhibiting a helical topology.
    Credit: Rodríguez-Kamenetzky et al. 2025, The Astrophysical Journal.

    New observations from the National Science Foundation National Radio Astronomy Observatory’s (NSF NRAO) Karl G...

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    These 11 Genes may help us Better Understand Forever Chemicals’ Effects on the Brain

    January 9, 2025, Categories  Health/Medical, Chemistry/Nanotechnology

    A blue gloved hand places a small bottle of liquid into a laboratory machine.
    A study led by the labs of University at Buffalo chemistry professors G. Ekin Atilla-Gokcumen and Diana Aga has uncovered some molecular clues about the neurotoxic effects of  per- and polyfluorinated alkyl substances, better known as forever chemicals. Photo: Meredith Forrest Kulwicki/University at Buffalo

    Molecular clues about the neurotoxic effects of PFAS. A new study has identified 11 genes that may hold the key to understanding the brain’s response to these pervasive chemicals commonly found in everyday items.

    Per- and polyfluorinated alkyl substances (PFAS) earn their “forever chemical” moniker by persisting in water, soil and even the human brain.

    This unique ability to cross the blood-brain barrier and accumulate in brain tissue makes PFAS particularly concerning, but t...

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    Macroscopic Oscillators Move as One at the Quantum Level

    January 9, 2025, Categories  Physics, Technology/Electronics

    A hexamer of macroscopic mechanical oscillators for studying quantum collective phenomena. Credit: Mahdi Chegnizadeh (EPFL)

    Scientists have successfully achieved a quantum collective behavior of macroscopic mechanical oscillators, unlocking new possibilities in quantum technology.

    Quantum technologies are radically transforming our understanding of the universe. One emerging technology are macroscopic mechanical oscillators, devices that are vital in quartz watches, mobile phones, and lasers used in telecommunications. In the quantum realm, macroscopic oscillators could enable ultra-sensitive sensors and components for quantum computing, opening new possibilities for innovation in various industries.

    Controlling mechanical oscillators at the quantum level is essential for developing future technologies in quantum computing and ultra-precise sensing...

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    Research may Boost Next-Generation Space Rockets

    January 8, 2025, Categories  Astronomy/Space

    a solar-powered EP spacecraft design
    A solar-powered EP spacecraft design. (Courtesy of NASA)

    Hidden patterns in electric propulsion plasma beams could help ensure the success of long-term space missions. Go faster, farther, more efficiently.

    That’s the goal driving spacecraft propulsion engineers like Chen Cui, a new assistant professor at the University of Virginia School of Engineering and Applied Science. Cui is exploring ways to improve electric propulsion thrusters — a key technology for future space missions.

    “In order to ensure the technology remains viable for long-term missions, we need to optimize EP integration with spacecraft systems,” Cui said.

    Working with his former adviser, University of Southern California professor Joseph Wang, Cui published findings last month in Plasma Sources Science and Tec...

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