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# How We Solved the Greatest Riddle In Navigation
- URL: https://www.cascadepbs.org/show/its-okay-be-smart/episode/how-we-solved-the-greatest-riddle-in-navigation-0cysin/
- Published: 2024-04-02T23:16:50.000Z
- Updated: 2025-08-20T09:55:44.000Z
- Description: The secret is In order to know WHERE you are, you need to first know WHEN you are.
- Author: Cascade PBS Staff
- Tags: Be Smart, Season 10, Episode 15, #ZZZ_Episode_be35b5ac-e2af-4c7b-ae5b-8041d74d45b1, #episode, #ZZZ_Show_dc38a6e9-266e-43c1-b647-45e7445fad27, #v1.16

Humanity’s drive to explore our planet is one of the defining characteristics of our species. But exploration only works if you know where you are at any given time. Not so easy when you are out at sea with no visible landmarks and the stars above are in constant motion. So, the key to solving this puzzle is understanding that in order to know WHERE you are, you have to first know WHEN you are.