🚀 go-pugleaf

Thomas the Clerk did write:
>Now, note that the sun moves with a constant angular velocity of 15 degrees
>per hour on the ecliptic circle (although it's projection along the
>horizon line is a function of the season).  This means that sundials
>naturally give "equal" or "secular" hours.  "Unequal" or "liturgical"
>hours (1'st hour at sunrise and 12'thhour ends at sunset) are not
>"normal" for this projection.  This is solved by putting a "nodus"
>on the gnomen, and using a horizon traversal projection on the plate.
>This then makes each day 12 hours long.  the time is read from the position
>of the shawdow of the nodus, and not from the edge shadow of the gnomen.
>Interestingly enough, such a dial requires very complex scribing, or
>it requires you to know the date to read it.

Oops.  Sounds like I blew it.  Well, this should answer the original
question, anyway.....

			---Simon