The astrolabe: a 2,000-year-old GPS. A brilliant navigation tool based on a geocentric model with a stationary Earth at the center 😀 [▻](https://video.twimg.

Trending Videos • 2026-08-17 07:19 UTC • By Billy Odell Tucker-Robinson

The astrolabe: a 2,000-year-old GPS. A brilliant navigation tool based on a geocentric model with a stationary Earth at the center 😀 [▻](https://video.twimg.com/amplify_video/2089250642241937408/vid/avc1/848x464/X6Qf8kjBe99KIZNj.mp4)

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