Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsBlackbody Curves and Telescope Sensitivityhttp://demonstrations.wolfram.com/BlackbodyCurvesAndTelescopeSensitivity/]]>http://demonstrations.wolfram.com/BlackbodyCurvesAndTelescopeSensitivity/