NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Dresden sextant - lets commission a Navlist instrument!
From: Brad Morris
Date: 2017 Jun 4, 22:36 -0400
From: Brad Morris
Date: 2017 Jun 4, 22:36 -0400
Okay Paul, I'll bite.
A repeating reflecting circle.
Since the index AND horizon arms can move, the angle is measured N times and the overall sum of angular measurement us divided by N.
Example: 3 readings of 60° will yield an overall measured angle of 180°. Divide 180° by 3, yielding 60°. This instrument nullifies arc centering error by marching the measurement all the way around the circle. It is graduated 0° to 720°.
On Jun 4, 2017 9:09 PM, "Paul Saffo" <NoReply_PaulSaffo@fer3.com> wrote:
Here's an idea for Navlist. The folks who make the fake instruments in India/Pakistan are great at their craft. Why not design a uniquely Navlist instrument and then commission one of the makers of these brass fantasies to make a small number of the instrument for Navlist folks. Non-functional of course, but something subtly ridiculous and suitably complex that would make a fine desktop dust-catcher/conversation piece.
-p
