NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Perpendicularity and other qstns.
From: Herbert Prinz
Date: 2004 Oct 13, 13:06 -0400
From: Herbert Prinz
Date: 2004 Oct 13, 13:06 -0400
Alexandre Eremenko wrote: > Herbert Prinz: > "You are describing a parallactic effect which can only be caused by a > different > distance of the individual cylinders from the front edge of the index > mirror." > > No, this is not what I am discribing. a few hours later Alexandre Eremenko wrote: > I think I found the reason of the disagreement in > our experiments. [...] > > The point is that the "right edge of the index mirror" > (where the images of two visors should come together) > is NOT at equal distance from the visors. I am glad Alexandre was finally able to find the reason himself (or at least he thinks he did). Such are the blessings of mathematics: You can lock yourself into an ivory tower and find out the truth all by yourself without trying to understand what anybody else says. Herbert Prinz
