Tuesday, May 24, 2016

Why does earth's magnetic field change its direction?


I know that the earth's magnetic field is due to molten metal and ions flowing in its core. It has been found that the Earth's magnetic field changes its direction and it has even flipped once!


But, in order for this to happen the molten ions flowing in the core should also change its direction. What is causing this change in direction of the ion flow?




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