Science news articles about 'magnetic field lines'

  • Pocket-sized magnetic resonance imaging

    ... possible, several permanent magnets are so arranged that the magnetic field lines overlap to form ... alike can benefit from the mobile pocketsized nuclear magnetic resonance (NMR) devices: The first "Kea ...
  • Aurora "Power Surges" Triggered by Magnetic Explosions

    A newfound link between bursts of energy in magnetic field lines and brighter auroras may solve a 30-year mystery about the polar lights, researchers say. With video.
  • Human Control Of Earth's Radiation Belt

    ... field increases as the particles approach the Earth; because charge flows perpendicular to magnetic field lines, the component of the particles' velocity parallel to the magnetic field decreases.
  • Scientists solve 30-year-old aurora borealis mystery

    ... acceleration of waves and plasma along magnetic field lines, lighting up the aurora underneath even before ... -speed electrons descend along magnetic field lines to strike the Earth's upper atmosphere. ...
  • Who needs a compass when you've got Bessie?

    Researchers have found that deer and cows have an innate magnetic sense because they tend to align themselves with the Earth's magnetic field lines when at rest.
  • Saturn's Mysterious Radio Emissions Mapped In 3-D

    ... the sources of intense radio emissions in Saturn’s magnetic field, known as the Saturn Kilometric Radiation ( ... -energy electrons spiralling around magnetic field lines threaded through Saturn’s auroras. ...
  • A supercharged metal-ion generator

    ... an electron or two) and free electrons. The electric field created by the negative bias of the target disk ... target, it becomes self-sustaining. The magnetic field lines near the target grow thick ...
  • NASA's Fermi telescope probes dozens of pulsars

    ... alone. A pulsar is the rapidly spinning and highly magnetized core left behind when a massive star ... gamma rays as they arc along curved magnetic field lines. The new pulsars were discovered as part ...
  • Ganymede Makes Big Impression On Jupiter's Auroral Lightshows

    ... generate electromagnetic waves that are projected along Jupiter’s magnetic field lines towards Jupiter’s poles where they cause auroral bright spots. Scientists from the University of ...

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