NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: GPS: an interactive explanation
From: Richard Easton
Date: 2022 Jan 21, 19:58 -0800
From: Richard Easton
Date: 2022 Jan 21, 19:58 -0800
You may find of interest my discussion with my co-author on C-Span of the history of GPS.
https://www.c-span.org/video/?427553-2/global-positioning-system-history