A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Marty Lyons
Date: 2015 Jun 25, 08:29 -0700
I read the archived articles on the Bris, somewhat confusing. Pretty fascinating though, so I made one. I used three glass welding shields, two clear and one #5 shaded, spaced at slightly different angles.
My questions are:
1. Is the light supposed to enter the Bris from the top, in the spaces between the glass or through the back of the shade?
2. I see what I think are a bunch of reflections. I will say, 1 bright, 2 less bright, 4 dimmer yet and on very dim. Is that correct?
3. So to understand the principle, I sight the horizon and wait until one of the images comes down or up to the horizon and time it?
4. I then work the sight backwards, using either manual methods or software solutions?