Tom Laidlaw wrote: > Hi there, > > I'm trying to resolve what seems like a conflict of information. Some > resources say that a vertical dial is simply a horizontal dial rotated 180 > degrees. But when I used Hristov's spreadsheets the calculated angles are > different. Which is correct? Or what am I missing? Also I thought I saw a > photo of a polar dial with upturned ends to catch more hours, but I can't > find it now. The turn-up was not a full 90 degrees. > > Thanks, > > Tom Laidlaw > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > > I think Tom might have been confused by reading something to the effect that a vertical dial delineated for the northern hemisphere can have an exact equivalent as a horizontal dial somewhere in the southern hemisphere. It would be at a different latitude of course and probably in mid-ocean somewhere. I hope my memory serves me well on this?
Tony Moss. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
