A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Brad Morris
Date: 2016 Jun 7, 16:27 -0400
I liked that video! Nicely explained and the graphics were simple to follow.
The Archimedean Spiral was a neat trick. A trick that I was unaware that they used. So I learned something today!
This is a nice video about the Apollo LEM alignment telescope that was designed with some clever work-arounds as a lightweight substitute for a more conventional sextant: https://www.youtube.com/watch?v=hVCNS2jQQ6g -p