Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsPhotosynthetic Common Intercept Measurementshttp://demonstrations.wolfram.com/PhotosyntheticCommonInterceptMeasurements/]]>http://demonstrations.wolfram.com/PhotosyntheticCommonInterceptMeasurements/