A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Ed Popko
Date: 2022 Jun 27, 07:25 -0700
This article entitled "Diagonals and Transversals: Magnifying the Scale" by Otto van Poelje was published in the Journal of the Oughtred Society (Vol 13, No. 2, Fall 2004, pp. 22-28) is likely the clearest and most comprehensive presentation on the topic.