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조선살
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LdfwrSqLAyejvi |
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| perfect design thanks http://xvideosred.site/ wwwxvideos Scientists believe that gyrating iron fluid generates Earth's magnetic field, like a giant dynamo. Both yearly and millennial-scale changes in the field have been attributed to the swirling, spinning outer core. Tracking changes in the magnetic field helps researchers create models of how the dynamo may work. |
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Jamaal |
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2020-06-01 14:44:32 |
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