Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsReading Hertz's Own Dipole Theoryhttp://demonstrations.wolfram.com/ReadingHertzsOwnDipoleTheory/]]>http://demonstrations.wolfram.com/ReadingHertzsOwnDipoleTheory/