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What does the spinning of the Earth's core create?

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Earth has multiple layers: the crust, the mantle, the liquid outer core and the solid inner core. Credit: NASA. The Earth's magnetic field controls the direction and speed at which Earth's inner and outer cores spin, even though they move in opposite directions, new research suggests. read more

The core's "fast axis" would emerge at an imaginary point on Earth's surface up to 10 degrees from the north pole, where the spin axis would emerge. The Earth and the core are rotating on the same spin axis, but because the inner core rotates just a bit faster than the planet as a whole, the "fast axis" through the core moves eastward. read more

With his contraption, Lathrop, a physicist at the University of Maryland in College Park, hopes to re-create the Earth’s spinning metal heart. As the planet rotates on its axis, electrically conducting liquid iron churns thousands of kilometers down in the outer core. read more

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