Question
Who measured the velocity of light first?
Solution
Galileo is often credited with being the first scientist to try to determine the speed of light. Galileo's experiment was carried out by the Accademia del Cimento of Florence, Italy, in 1667, with the lanterns separated by aboutonemile, but nodelaywas observed.The actualdelayinthisexperimentwouldhavebeen about 11 microseconds. The first quantitative estimateofthespeedalightwasmadein1676by Romer.
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