> periods in which the intensity of the magnetic field wanes and the dipole (or two magnetic poles) that we're familiar with can disappear, replaced with multip

> periods in which the intensity of the magnetic field wanes and the dipole (or two magnetic poles) that we're familiar with can disappear, replaced with multiple magnetic poles If this was a basis of a movie plot I would think how stupid the movie is. Apparently it was normal for earth to have more than two magnetic poles before earth core started to solidify [0]. Was earth core composed of multiple elements where each had two magnetic poles? Also somewhat relevant wiki articles: Geomagnetic excursion [1], Laschamp event [2] and Geomagnetic reversal [3]. [0] https://www.popularmechanics.com/science/environment/a21528/ancient-earth-magnetic-field/ https://www.popularmechanics.com/science/environment/a21528/... [1] https://en.wikipedia.org/wiki/Geomagnetic_excursion https://en.wikipedia.org/wiki/Geomagnetic_excursion [2] https://en.wikipedia.org/wiki/Laschamp_event https://en.wikipedia.org/wiki/Laschamp_event [3] https://en.wikipedia.org/wiki/Geomagnetic_reversal https://en.wikipedia.org/wiki/Geomagnetic_reversal