My bad :-). Sorry. Feet not touching the floor at present - or eyes or brain the screen apparently ;-). Yes - area and energy out about proportional. >> As Olin notes [all things being equal (which he didn't say >> explicitly)] output is ~ proportional to area. > > Actually I did say it explicitly: > > =A0"All else being equal, the energy you get per time is > =A0 proportional to the area, ..." --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .