Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsConstructing Polyhedra Using the Icosahedral Grouphttp://demonstrations.wolfram.com/ConstructingPolyhedraUsingTheIcosahedralGroup/]]>http://demonstrations.wolfram.com/ConstructingPolyhedraUsingTheIcosahedralGroup/