Labels:airplane | car | escalator | person | sky | tank | tribute album | windowpane OCR: MA G N ETIC STORM A world-wide disturbance the Earth's magnetic tield caused by solar activity These storms -are frequently characteri zed by sudden onset in which the magnetic field undergoes marked changes in. the course of an hour or less followed by a gradual return to/normalcy (over several days) ISAPD
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