Hi, The proper way to do this is depicted in the title plate of Philip van Lansbergen's description of the horary quadrant, online on Google Books
http://books.google.com/books?id=nFw-AAAAcAAJ http://books.google.com/books?id=ZGo-AAAAcAAJ rvg -----Original Message----- From: sundial [mailto:[email protected]] On Behalf Of Darek Oczki Sent: donderdag 25 april 2013 15:35 To: [email protected] Subject: Very early equal-hours quadrant discovered Dear John Thank you for the news - this is a fine discovery. Frankly speaking I cannot imagine looking directly into the Sun without loosing my sight. Even through these two tiny pine-holes. Whouldn't it be easier and of cource more healthy to hold one's hand near the lower hole (I don't know the right term for these) and find a position when one gets a single spot of lite on it? Well, perhaps not easier but at least you still have eyes to check the time. I must confess: I have never tried to figure out how quadrants work and thus the idea of using them as sundials is quite new to me. -- Best regards Darek Oczki 52N 21E Warsaw, Poland GNOMONIKA.pl Sundials in Poland http://gnomonika.pl --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
