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The original was posted on /r/space by /u/codestormer on 2025-10-05 10:02:16+00:00.

Original Title: Globus INK, a Soviet era mechanical spaceflight navigation system from the 1960s. It featured a rotating, 5" globe to display the spacecraft’s real-time position relative to Earth and calculated orbital parameters using an intricate system of gears, cams, and differentials. Photo by Ken Shirriff