Abstract
The Earth’s magnetic field has been a constant source of curiosity and wonder, for its ubiquitous use in navigation, the properties of magnetic attraction and the influence and connection to celestial phenomena like aurora, sunspots, etc. Records of magnetic measurements exist going back 400 years. Modern measurements, with the addition of satellite-borne observations, provide accuracy and enables understanding of intriguing characteristics of the geomagnetic field. Some of these are: magnetic polarity reversals, wandering of the magnetic poles and the most fundamental one: the origin of the field in the Earth’s interior and the mechanisms that have sustained it for over a billion years.
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