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Turbulence in molten core helps amplify Earth's magnetic fie 
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Joined: Mon Aug 30, 2010 9:56 am
Posts: 20756
Post Turbulence in molten core helps amplify Earth's magnetic fie
Science Daily Geology

Researchers have shown that turbulence, random motion that takes place in the molten metal in the Earth's core, makes a contribution to our planet's magnetic field. To obtain this result, they modeled the Earth's outer core using liquid sodium enclosed between two rotating concentric metal spheres. Like many planets and most stars, the Earth produces its own magnetic field by dynamo action, i.e. because of the motion of an electrically conducting fluid-in this case, a mixture of molten iron and nickel.

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Tue Nov 18, 2014 6:31 am
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