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Scientists Present New Theory for Earth's Iron Core |
Earth, like all planets in the solar system, has an inner most core, in the shape of a sphere measuring about 1,200 kilometers, consisting of a solid mass of iron, responsible for generating our planet's powerful magnetic field. Nonetheless, while implying measurements of its structure with the help of seismic waves, scientists have proven that they travel with great speeds in certain directions. For example, seismic waves seem to have greater speeds in a direction parallel to the plane of ...
Posted originally: Fri, 8 Feb 2008 16:24:00 GMT
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