HackerTube / Video
Celestial Navigation (instruction video)
NathanielsCAD

A roughly 45-minute vintage US military instructional film that gives a comprehensive overview of celestial navigation, covering sextant use and the theory behind lines of position.
HN points to it as an unusually clear teaching film on how celestial navigation works, and as an example of how good old military training material is.
6 Hacker News mentions · 2021–2025