Talk:Polar Reversal/@comment-25446881-20141108190042

This is in the Historical Archive, so it's ok if it's old. The porblem is, this is nonsense... The Earth can't just reverse the direction of it's rotation cyclically. And if it did, there would be nothing left on the surface to tell about it. Ever heard of inertia? Newton's First Law of Motion? It would take an enormous amount of energy to revert the rotation, like the collision with another planetary body, which would destroy everything on the surface and probably melt the crust. If somehow Earth could generate this energy from itself, it would still distroy everything on the surface because of the same principle of inertia. Besides, we all know what generates Earth's magnetosphere: the motion of the outer core.