Python 3 jupyternotebook

In 1600, William Gilbert hypothesized that the Earth itself was a giant bar magnetic and that this gave rise to the Earth’s magnetic field! If it were true- that the source of the magnetic field behaved like a giant bar magnet- then the inclination of the magnetic field would vary as a function of latitude. Inclination is the angle between the horizontal and the direction of the field. If the field were
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