File:Magnetic rope.svg

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Original file (SVG file, nominally 262 × 432 pixels, file size: 14 KB)

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Description
English: The self-constricting magnetic field lines and current paths in a Birkeland current (or magnetic rope). The current is strongest at the axis and becomes weaker further away. Current flows parallel to the magnetic field, and derives partly from an external axial field and partly from the toroidal field produced by the current itself.
Date
Source http://history.nasa.gov/SP-345/ch15.htm#250
Author NASA; edited by Jaybear
 
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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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Date/TimeThumbnailDimensionsUserComment
current18:21, 23 March 2013Thumbnail for version as of 18:21, 23 March 2013262 × 432 (14 KB)Jaybear (talk | contribs)correction of doubled patches;
18:01, 23 March 2013Thumbnail for version as of 18:01, 23 March 2013262 × 432 (14 KB)Jaybear (talk | contribs)some reformatting & color correction;
17:43, 23 March 2013Thumbnail for version as of 17:43, 23 March 2013262 × 432 (14 KB)Jaybear (talk | contribs)2 Missing green direction-arrows added; uniform whitespace added around the object; colors adjusted slightly; minor corrections on curves' patches at crossing points;
23:14, 23 June 2012Thumbnail for version as of 23:14, 23 June 2012257 × 424 (15 KB)CharlesChandler (talk | contribs)

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