The discovery of the magnetic compass (qv) by the Chinese dates back at least to the AD 1st century AD., and it was known in Europe during the AD 12th century. An early idea was that the magnetic needle was attracted to the pole star, but by the year 1600, William Gilbert ( ...
CITATION STYLE
Labrosse, S. (2007). Geodynamo, Energy Sources. In Encyclopedia of Geomagnetism and Paleomagnetism (pp. 300–302). Springer Netherlands. https://doi.org/10.1007/978-1-4020-4423-6_110
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