Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsStrips of Equal Width on a Sphere Have Equal Surface Areashttp://demonstrations.wolfram.com/StripsOfEqualWidthOnASphereHaveEqualSurfaceAreas/]]>http://demonstrations.wolfram.com/StripsOfEqualWidthOnASphereHaveEqualSurfaceAreas/