NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Vernier explanation
From: Gary LaPook
Date: 2022 Jun 25, 14:17 -0700
From: Gary LaPook
Date: 2022 Jun 25, 14:17 -0700
That's the type of scale I was asking about. I learned about it many years ago when looking into figuring a telescope mirror using a Faucault test. It was called a "BARR scale" (I mis-spelled in my original post.) https://www.youtube.com/watch?v=RTrqI-YopBI
gl