Ok, I made my first practical dial using JUST protractor, straight edge and compass. NO SOFTWARE! (except online to triple check Longitude and latitude<G>) I even made adjustment for longitude.
Lo and behold, it WORKED! Still had to add 1 hour to compensate for daylight savings time but, other than that, it was watch accurate! WOOHOO! So, now I understand the geometric relationships that create the hour lines relative to the gnomon. Now I need to learn how to calculate the declination lines. That is my next hurdle. Meanwhile, I will be playing with making nicer looking dials of wood and, perhaps, stone. I am going to be looking for nice stone I can use to make dial faces. For those who work in stone, what tools do you usually use to cut and etch in stone? Karon Adams Accredited Jewelry Professional (GIA) You can send a free Rosary to a soldier! www.facebook.com/MilitaryRosary www.YellowRibbonRosaries.com
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
