Physics

  1. Physics

    A laser gyroscope measured tiny variations in the lengths of days on Earth

    An underground gyroscope known as ‘G’ uses laser beams traveling in opposite directions to precisely measure Earth’s rotation.

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  2. Physics

    Scientists have two ways to spot gravitational waves. Here are some other ideas

    From lasers in space to falling atoms on Earth, researchers are cooking up ways to sense gravitational waves that current methods can’t detect.

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  3. Particle Physics

    Scientists finally detected oxygen-28. Its instability surprised them

    The elusive isotope was predicted to be very stable, thanks to “magic” numbers of neutrons and protons. It fell apart almost immediately.

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  4. Physics

    Filipino math teacher Emma Rotor helped develop crucial WWII weapons tech

    Devoted wife of a famed Filipino writer, Emma Unson Rotor worked on the proximity fuze at a U.S. agency in the 1940s.

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  5. Physics

    Superconductor research surges forward despite controversy over stunning claims

    After retractions from Ranga Dias’ group, high-pressure physicists are feeling the squeeze, fearing the controversy will tarnish other research.

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  6. Health & Medicine

    50 years ago, X-rays provided an unprecedented look inside the brain

    CT scans can now image the whole body and are even used in other scientific fields such as archaeology, zoology and physics.

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  7. Chemistry

    Chemists turned plastic waste into tiny bars of soap

    Researchers developed a process to turn plastic waste into surfactants, the key ingredients in dozens of products, including soap.

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  8. Chemistry

    Magnetic ‘rusty’ nanoparticles pull estrogen out of water

    Iron oxide particles adorned with “sticky” molecules trap estrogen in water, possibly limiting the hormone’s harmful effects on aquatic life.

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  9. Physics

    How to run a marathon in under two hours

    Running between other people reduces air resistance. A new study identifies optimal positioning of such drafting formations. Watch out, marathon records.

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  10. Particle Physics

    There’s a new measurement of muon magnetism. What it means isn’t clear

    The measurement, from the Muon g−2 experiment, is the most precise yet. But recent theoretical predictions are a bit muddled.

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  11. Physics

    Centuries on, Newton’s gravitational constant still can’t be pinned down

    A new experiment could finally answer the question 'What is the strength of gravity?' But it's a hard test to do.

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  12. Physics

    Mass has different definitions. The moon’s orbit confirms two are equivalent

    Laser measurements of the moon’s orbit square with Newton’s third law of motion and Einstein’s theory of gravity.

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