NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Two mirror a.h.
From: Hewitt Schlereth
Date: 2011 Oct 26, 12:39 -0400
From: Hewitt Schlereth
Date: 2011 Oct 26, 12:39 -0400
Neat! Is that a disk-brake rotor under the first-surface mirror? Hewitt
Sent from my iPad
Sent from my iPad
My a.h.. The first is made from a plastic cutting board and a second surface mirror. Look at the back edge in the photo to see the second surface reflection.
The second is 3/8 inch aluminum plate and if you again look at the back edge you can see the 'first-surface' difference. The lines drawn on the mirror were suggested on Nav-list, to get the level placed and reversed consistently
Randall F Morrow PT
Ergonomics Safety Consultant
Chronic Pain Program
Kaiser Permanente - Kern County - Bakersfield
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