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the field reverses

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VIP Member
Dec 27, 2010
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Student or Learner
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South Korea
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South Korea
I'm sorry this is a scientific question, but do you happen to know how the reversing of the magnetic field around the earth happens?

gu128)Our planet is surrounded by a magnetic field, but it could vanish at any time. Around every 200,000 years the field reverses, which causes it to temporarily disappear...
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