Hello,
As of reflecting dials, a Copernican one must be recalled.
On the wall of the gallery of Olsztyn castle, there are remnants of the
reflecting dial made by Copernicus during his stay in the castle in years
1516-21, from where he administered diocese of Warmia.
Actually this is the only
Some readers have asked How can you make such a dial?
I would love to hear from an author of such dials to hear how it is done
in less than a year of marking points.
How did they do it?
Computer software certainly makes it easier. The popular Zonwvlak,
ZW2000, has long had a reflection
The other of the 2 Reclining-Declining formulas listed in the notes, at the
bottom of the wikipedia Sundial article, likewise gives correct answers.
Again, using:
Lat = 51.5
Incline = 45
Decline direction = 45 degrees left of south
...The Mayall Mayall formula, in the article's notes, for
