A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Richard Easton
Date: 2017 Dec 8, 14:58 -0800
I was on the John Batchelor Show last night talking about Project Vanguard and GPS. https://audioboom.com/posts/6542405-hotel-mars-60-years-since-flopnik-vanguard-david-livingston-spaceshow-com-richard-easton-author-gps-declassified-from-smart-bombs-to-smartphones It's also available on iTunes.