Space & the universe9 min
The Moon of Jupiter That Clocked Light
Discover how a 17th-century astronomer used a celestial clockwork to solve a mystery that stumped Galileo and Descartes.
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Show notes
Ole Rømer's 1676 announcement at the Paris Observatory
The mechanics of Io's eclipses as a cosmic clock
Christiaan Huygens's 1678 calculation of light speed
James Bradley's 1727 confirmation via stellar aberration
Modern digital reconstructions using JPL Horizons data
In this episode
- 01Intro1 min
- 02The Instantaneous Universe2 min
- 03The Clock in the Sky2 min
- 04The November Prediction2 min
- 05A Finite Reality2 min
- 06Outro1 min
Sources
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