Overview: In this documentary special, Horizon explores how to solve the problem of sailors being unable to pin-point their exact east-west position on the globe.
Watch Trailer
First Air Date: Feb 04, 1964Last Air date: Jul 22, 2024Season: 60 SeasonEpisode: 1162 EpisodeRuntime: 60 minutesQuality: HDIMDb: 7.40 / 10 by 27 usersPopularity: 113.465Language: English