You can build one of these.
https://www.mysundial.ca/sdu/sdu_wall_declinometer.html
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Michael
Ossipoff
Sent: July 1, 2023 1:07 PM
To: Jeffery Brewer; sundial list
Subject: Re: Question About Measuring Wall Declination
I
I realize that you’ve already gotten good answers, but I’d like to say a
few things too.
…
I’m really late replying, because I’ve been trying to figure out how to
word answers to a few long assertion-posts from the usual confused
self-sure kids at a philosophical forum. After this time, I’m
