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geomagnetism |
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geomagnetism [ˌdʒiːəʊˈmægnɪˌtɪzəm] n 1. (Physics / General Physics) the magnetic field of the earth 2. (Physics / General Physics) the branch of physics concerned with this geomagnetic [ˌdʒiːəʊmægˈnɛtɪk] adj
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When the Earth's magnetic field captures ionized particles carried by the solar wind, geomagnetically induced currents can flow through the power system, entering and exiting the many grounding points on a transmission network. Also deployed was a low-light television camera, which recorded the images produced as the geomagnetically trapped and spiraling electrons fired in pulses by the gun ionized neutral atoms of the upper atmosphere. Geomagnetically induced currents (GIC) are produced when shocks from severe magnetic storms interrupt the Earth's normally stable magnetic field. |
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