How much time elapsed from when Ole Rømer discovered that light did not travel at infinite speed to a time when the speed of light was first measured accurately?
A) No time at all-it was Rømer himself who measured this speed accurately!
B) 28 years
C) almost 1000 years
D) more than a century but less than two centuries

Question

Quizplus · Accepted Answer

Ole Rømer first made observations in 1676 that suggested light had a finite speed. However, it wasn't until 1849 that Hippolyte Fizeau conducted the first relatively accurate measurement of the speed of light, marking a period of more than a century but less than two centuries between the discovery and the accurate measurement.

How Much Time Elapsed from When Ole Rømer Discovered That