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Science & Technology
Just in time for Elections: Massive waves of molten metal inside the Earth's core cause the planet's magnetic field to JERK around every 6 to 12 years
2019-04-23
Posted by:Skidmark

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Posted by: Frank G   2019-04-23 20:47  

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Posted by: Rambler in Virginia    2019-04-23 15:50  

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Posted by: Bobby   2019-04-23 15:11  

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