What kind of magnetic field are we talkin about here?
Much like many planets in the solar system, the Earth generates its own magnetic field. The geomagnetic field of the Earth measures roughly 0.5 Gauss. The mechanism behind this phenomenon is still not completely understood, but the most likely explanation is that it results from currents created by the movement of the molten core of metallic materials under Earth’s surface. Its field lines are similar to that of an enormous bar magnet, with the North Pole roughly near magnetic south and the South Pole near magnetic north. This concept proves even more interesting when it was learned that the Earth’s magnetic poles have shifted throughout the course of our planet’s history, actually reversing directions, as is documented in the polarities of the rocks along the ocean floor.
