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File:NASA 54559main comparison1 strip.gif

NASA_54559main_comparison1_strip.gif ‎(448 × 245 pixels, file size: 76 KB, MIME type: image/gif)

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http://www.nasa.gov/vision/earth/lookingatearth/29dec_magneticfield.html archive copy at the Wayback Machine

Supercomputer models of Earth's magnetic field. On the left is a normal dipolar magnetic field, typical of the long years between polarity reversals. On the right is the sort of complicated magnetic field Earth has during the upheaval of a reversal

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current19:09, 9 January 2007Thumbnail for version as of 19:09, 9 January 2007448 × 245 (76 KB)DMY (talk | contribs)http://www.nasa.gov/vision/earth/lookingatearth/29dec_magneticfield.html Supercomputer models of Earth's magnetic field. On the left is a normal dipolar magnetic field, typical of the long years between polarity reversals. On the right is the sort of com

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