Modelle des Kosmos: Modelle der Erde

Modelle des Kosmos: Modelle der Erde

Barlow’s Sphere
Peter Barlow's Model of the Earth as an Electromagnet, C. Dell’Acqua, Milan, around 1840

After the discovery of induction, Peter Barlow criticizes the comparison of the Earth with a permanent magnet. His model of the Earth (around 1840) is a spherical coil with current flowing through it. Barlow believes that magnetism has no real existence.

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