Physics

  1. hydrogen molecule
    Physics

    A photon’s journey through a hydrogen molecule is the shortest event ever timed

    The shortest duration ever measured is 247 zeptoseconds, or trillionths of a billionth of a second.

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  2. diabolical ironclad beetle
    Animals

    The diabolical ironclad beetle can survive getting run over by a car. Here’s how

    The diabolical ironclad beetle is an incredibly tough little creature. A peek inside its exoskeleton reveals what makes it virtually uncrushable.

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  3. two diamonds squeezing superconductor material
    Physics

    The first room-temperature superconductor has finally been found

    A compound of carbon, hydrogen and sulfur conducts electricity without resistance up to 15° C, but there’s a catch: It works only under high pressure.

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  4. sound wave
    Physics

    Fundamental constants place a new speed limit on sound

    Physicists propose a new maximum rate that sound waves can travel under conditions normally found on Earth — 36 kilometers per second.

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  5. black hole (illustrated)
    Physics

    Black hole revelations win the 2020 Nobel Prize in physics

    The Nobel Prize in physics was awarded to a trio of scientists for their work on the most mysterious objects in the universe: black holes.

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  6. thermometer detecting sound waves
    Tech

    A new thermometer measures temperature with sound

    An acoustic thermometer takes temperature by listening to the faint hum that objects give off when they get hot.

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  7. illustration of light swirling around a black hole
    Space

    The first black hole image helped test general relativity in a new way

    The Event Horizon Telescope’s iconic image of the black hole at the center of galaxy M87 once again shows Einstein was right.

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  8. water molecule illustration
    Physics

    A stop-motion experiment reveals supercooled water’s dual nature

    Scientists found signs that water cooled well below freezing consists of two different arrangements of molecules.

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  9. EHT M87 black hole image
    Space

    EHT data show turbulence makes the glowing ring around M87’s black hole wobble

    Event Horizon Telescope data spanning nearly a decade reveal that the appearance of the supermassive black hole inside galaxy M87 changes over time.

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  10. image of a sea butterfly on a black background
    Animals

    Sea butterflies’ shells determine how the snails swim

    New aquarium videos show that sea butterflies of various shapes and sizes flutter through water differently.

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  11. toy boats floating right side up and upside down
    Physics

    Toy boats float upside down underneath a layer of levitated liquid

    The upward force of buoyancy keeps objects afloat even in unusual conditions.

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  12. Colliding black hole illustration
    Physics

    Record-breaking gravitational waves reveal that midsize black holes do exist

    The biggest merger of two black holes so far raises questions about how the pair of objects came to be.

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