NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Perpendicularity
From: Herbert Prinz
Date: 2004 Oct 12, 17:39 -0400
From: Herbert Prinz
Date: 2004 Oct 12, 17:39 -0400
Cliff Sojourner wrote: > is there any effect from index of refraction of the glass in > front of the silvered surface? > Only in so far as the refraction of the glass shifts the apparent reflective surface from the back towards the front surface of the mirror. The sextant designer could compensate this by setting the mirror a little back. Herbert Prinz
