Which Danish astronomer first showed in 1676 that light travels at a finite speed?

Answer and explanation

Correct answer: C. Ole Rømer

  1. Step 1: The Danish astronomer Ole Rømer showed in 1676 that light travels at a finite speed. Answer: Ole Rømer. Why not the others: Aage Bohr, Niels Bohr and Tycho Brahe don't fit.

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