Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsTwo Charged Conducting Pendulumshttp://demonstrations.wolfram.com/TwoChargedConductingPendulums/]]>http://demonstrations.wolfram.com/TwoChargedConductingPendulums/