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Unformatted text preview: lines'' are imaginary lines used to describe the direction charged or magnetic particles will move when responding to a magnetic field. In the same way, gravity ``field lines'' point to the center of an object producing the gravity. You can see the direction of an ordinary household magnet's field lines by sprinkling tiny iron filings around a magnetic---they will tend to bunch up along particular magnetic field lines. Most of the solar wind gets deflected around the planet but a few particles manage to leak into the magnetic field and become trapped in the planet's magnetic field to created radiation belts or "charged particle belts"....
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- Fall '10