Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsThe Zeeman Effect in the Interstellar Mediumhttp://demonstrations.wolfram.com/TheZeemanEffectInTheInterstellarMedium/]]>http://demonstrations.wolfram.com/TheZeemanEffectInTheInterstellarMedium/