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    magnetic field

    US /mæɡˈnɛtɪk fild/

    ・

    UK /mæɡˈnetik fi:ld/

    A2
    n.NounA region around a magnetic material or a moving electric charge within which the force of magnetism acts.
    The compass needle aligns itself with the Earth's magnetic field.

    Video subtitles

    Magnetron sputtering: How does it work?

    02:41Magnetron sputtering: How does it work?
    • Inside the tubes are fixed rows of powerful permanent magnets. They generate a magnetic field, which is aligned in the direction of the substrate.

      Inside the tubes are fixed rows of powerful permanent magnets. They generate a magnetic field, which is aligned in the direction of the substrate.

    • They generate a magnetic field, which is aligned in the direction of the substrate.

      They generate a magnetic field, which is aligned in the direction of the substrate.

    B2

    This Is What Will Happen in the Next 100 Trillion Years

    08:29This Is What Will Happen in the Next 100 Trillion Years
    • In 2.3 billion years from now, the outer liquid core of Earth will freeze, which means that Earth will lose its magnetic field forever.

      In 2.3 billion years from now, the outer liquid core of Earth will freeze, which means that Earth will lose its magnetic field forever.

    • In 2.3 billion years from now, the outer liquid core of Earth will freeze, which means that Earth will lose its magnetic field forever.

      In 2.3 billion years from now, the outer liquid core of Earth will freeze, which means that Earth will lose its magnetic field forever.

    B1

    Why general relativity would’ve been discovered without Einstein | Sean Carroll

    16:58Why general relativity would’ve been discovered without Einstein | Sean Carroll
    • An electric field and a magnetic field.

      An electric field and a magnetic field.

    • And what he realized is there's two fields pervading the universe: an electric field and a magnetic field.

      And what he realized is there's two fields pervading the universe: an electric field and a magnetic field.

    B1

    What If You Just Keep Digging?

    11:36What If You Just Keep Digging?
    • and we should all be extremely grateful for the hot metal soup down there because its constant churning generates enormous electric currents, which in turn create the magnetic field around the Earth.

      and we should all be extremely grateful for the hot metal soup down there because its constant churning generates enormous electric currents, which in turn create the magnetic field around the Earth.

    • But this gets weirder: our magnetic field sometimes actually just reverses.

      But this gets weirder: our magnetic field sometimes actually just reverses.

    B1

    Where is the True North Pole?

    03:54Where is the True North Pole?
    • These currents are heavily influenced by the rotation of the Earth, so the magnetic field they generate roughly aligns with the Earth's axis of rotation—but not precisely, and

      These currents are heavily influenced by the rotation of the Earth, so the magnetic field they generate roughly aligns with the Earth's axis of rotation—but not precisely, and

    • This pole, together with the geomagnetic South Pole (which is on the exact opposite side of the Earth), represents the general overall trend of the Earth's magnetic field, especially as it extends into space.

      This pole, together with the geomagnetic South Pole (which is on the exact opposite side of the Earth), represents the general overall trend of the Earth's magnetic field, especially as it extends into space.

    B1

    Carl Safina: "Beyond Words: What Animals Think and Feel" | Talks at Google

    57:30Carl Safina: "Beyond Words: What Animals Think and Feel" | Talks at Google
    • We can't home for thousands of miles across open ocean just based on our perception of the Earth's magnetic field and things like that.

      We can't home for thousands of miles across open ocean just based on our perception of the Earth's magnetic field and things like that.

    • of the Earth's magnetic field, and things like that.

      of the Earth's magnetic field, and things like that.

    B1

    Fusion Power Explained – Future or Failure

    06:16Fusion Power Explained – Future or Failure
    • The first type of reactor uses a magnetic field to squeeze a plasma in a donut-shaped chamber where the reactions take place.

      The first type of reactor uses a magnetic field to squeeze a plasma in a donut-shaped chamber where the reactions take place.

    • The first type of reactor uses a magnetic field

      The first type of reactor uses a magnetic field

    B2

    10 Dark Conspiracy Theories About Natural Disasters

    13:3010 Dark Conspiracy Theories About Natural Disasters
    • Anything that HAARP can do to the magnetic field is orders of magnitude smaller than the natural variations of the earth's field.

      Anything that HAARP can do to the magnetic field is orders of magnitude smaller than the natural variations of the earth's field.

    • Anything that HAARP can do to the magnetic field is orders of magnitude smaller than the natural variations of the Earth's field.

      Anything that HAARP can do to the magnetic field is orders of magnitude smaller than the natural variations of the Earth's field.

    B2

    魚の研究者だけど「海洋生物」について質問ある? | Tech Support | WIRED Japan

    17:49魚の研究者だけど「海洋生物」について質問ある? | Tech Support | WIRED Japan
    • Some marine animals will follow the magnetic field of the earth.

      Some marine animals will follow the magnetic field of the earth.

    • @mjdukwa, "It's crazy how sea creatures just know exactly where to go when they migrate." Some marine animals will follow the magnetic field of the Earth.

      @mjdukwa, "It's crazy how sea creatures just know exactly where to go when they migrate." Some marine animals will follow the magnetic field of the Earth.

    B2

    Why This Pigeon Could Be Worth Millions

    11:11Why This Pigeon Could Be Worth Millions
    • They sense the landscape, follow the Earth's magnetic field, and somehow never need directions.

      They sense the landscape, follow the Earth's magnetic field, and somehow never need directions.

    • They sense the landscape, follow the Earth's magnetic field, and somehow never need directions.

      They sense the landscape, follow the Earth's magnetic field, and somehow never need directions.

    B2