Eli5 The earth has a magnetic field, including because of the metal core, but magnets are demagnetized at high temperature. How is this possible

Question

Eli5 The earth has a magnetic field, including because of the metal core, but magnets are demagnetized at high temperature. How is this possible

In: 1054

Answer 1

The earths magnetic field isn’t created by the iron in the core being magnetic, it’s created by the way if flows around inside the core.

This has secondary effects or magnetising some of the iron, but let’s forget about this.

The mag Eric field is mostly from the movement of the iron.