If the Earth is flat, how is our magnetic field generated?
In the Round Earth model, the magnetic field is created by the motion of the Earth's molten iron outer core around the solid nickel-iron alloy inner core.
So how exactly would this be generated in a flat disc, or whatever the popular flat Earth model is? Also, how would a compass work in this model? If you travel south long enough on a spherical Earth, eventually you'd be going north. Where in a flat Earth, this wouldn't be the case.