Image: Illustration from 1676 article on Ole Rømer's measurement of the speed of light
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Description: A diagram of Jupiter (B) eclipsing its moon Io (DC) as viewed from different points in earth's orbit around the sun.
Title: Illustration from 1676 article on Ole Rømer's measurement of the speed of light
Credit: Olaf (Ole) Roemer, "Demonstration tovchant le mouvement de la lumiere trouvé par M. Römer de l' Academie Royale des Sciences," December 7, 1676.
Author: Ole Rømer
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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