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    Category Technology/Electronics

    The Mother of all Motion Sensors

    August 15, 2024, Categories  Physics, Technology/Electronics

    1) Sandia National Laboratories’ four-channel, silicon photonic single-sideband modulator chip, measuring 8 millimeters on each side and marked with a green Sandia thunderbird logo, sits inside packaging that incorporates optical fibers, wire bonds and ceramic pins. (Photo by Craig Fritz) Click on the thumbnail for a high-resolution image. 2)Sandia National Laboratories scientist Jongmin Lee, left, prepares a rubidium cold-atom cell for an atom interferometry experiment while scientists Ashok Kodigala, right, and Michael Gehl initialize the controls for a packaged single-sideband modulator chip. (Photo by Craig Fritz) Click on the thumbnail for a high-resolution image.

    Quantum sensing milestone draws closer exquisitely accurate, GPS-free navigation...

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    AI Accurately Diagnoses Genetic Condition from Facial Photographs

    August 13, 2024, Categories  Physics, Technology/Electronics

    population
    Credit: Pixabay/CC0 Public Domain

    A Yale School of Medicine team reports in a new study that an artificial intelligence (AI) model was able to reliably diagnose people living with Marfan syndrome from a simple facial photograph.

    Marfan syndrome is a genetic disorder, affecting about 1 in 3,000 people, which impacts the body’s connective tissues. “Patients living with Marfan syndrome are usually very tall and thin,” said John Elefteriades, MD, professor of surgery at Yale School of Medicine and senior author of the study. “They have long faces and are prone to spine and joint issues. However, many are not diagnosed.”

    Marfan syndrome increases the risk for aortic dissection, where the aorta splits suddenly after becoming enlarged...

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    Researchers develop Next-Generation Cooling Material to Increase Summer Cooling Efficiency Without Electricity

    August 12, 2024, Categories  Physics, Technology/Electronics

    Radiation-cooling liquid crystal materials, a partner to the king of summer, air conditioning
    (Left) Schematic depicting the molecular arrangement and light-matter interaction in the cooling material: a photonic crystal based on spiral liquid crystals. (Right) Actual photographs of the materials in a variety of colors. Full-domain color is achieved by controlling the amount of additives (i.e., chiral dopants). Credit: Korea Institute of Science and Technology

    Dr. Jin Gu, Kang and his team at the Nanophotonics Research Center at the Korea Institute of Science and Technology (KIST) have developed a colorful radiation-cooling liquid crystal material that can cool without external power while simultaneously emitting color. The work is published in the Chemical Engineering Journal.

    Radiative cooling is a powerless cooling technology that releases infrared radiation as heat throug...

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    An Aerial Robot that can Independently Control its Own Position and Orientation

    August 12, 2024, Categories  Physics, Technology/Electronics

    An aerial robot that can independently control its position and orientation
    The aerial robot captured during exterior flight. Credit: Iriarte et al.

    Unmanned aerial vehicles (UAVs), commonly known as drones, are now used to capture images and carry out a wide range of missions in outdoor environments. While there are now several UAV designs with different advantages and characteristics, most conventional aerial robots are underactuated, meaning that they have fewer independent actuators than their degrees of freedom (DoF).

    Underactuated systems are often more cost-effective and can be controlled using simpler control strategies than overactuated systems (i.e., robots that have more independent actuators than their DoF). Nonetheless, they are often less reliable and not as capable of precisely controlling their position and orientation.

    Researchers at Tec...

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