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5 Jan 1900 Jahr - In Baltimore, physicist Dr. Henry A. Rowland of Johns Hopkins University announces that he has discovered that the cause of Earth's magnetic field was its own rotation, based on experiments to produce magnetism by the rotation of a motor

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World History (WIP)

ByClaire the Bread Fascist
15 Sep 2023
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5 Jan 1900 Jahr
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~ 125 years ago
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