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.
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First Air Date: Feb 04, 1964Last Air date: Jul 14, 2022Season: 60 SeasonEpisode: 1161 EpisodeRuntime: 60 minutesQuality: HDIMDb: 7.40 / 10 by 27 usersPopularity: 160.578Language: English