Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsApproach of a System of Particles towards Thermal Equilibriumhttp://demonstrations.wolfram.com/ApproachOfASystemOfParticlesTowardsThermalEquilibrium/]]>http://demonstrations.wolfram.com/ApproachOfASystemOfParticlesTowardsThermalEquilibrium/