Assertion: magnetic field's pole | /r/HasProperty | the dipole
Facets:
value: aka
type: OTHER
Source sentences:
text: The origins of the magnetic field start thousands of miles beneath Earth's surface, where convection in the outer core produces electrical currents that, in combination with Earth's rotation, create and sustain a magnetic field that runs through the planet like a bar magnet with two poles, north and south (aka the dipole).