Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

The title pretty much says everything; I just want to know how the speed of light was discovered.

share|improve this question

closed as off-topic by akhmeteli, Qmechanic Sep 27 '13 at 9:19

  • This question does not appear to be about physics within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

    
This question (v2) appears to be off-topic since a straightforward Google search would immediately provide the answer, cf. e.g. this and this meta post. –  Qmechanic Sep 27 '13 at 9:19
add comment

1 Answer

In 1672 a Danish astronomer was the first who reportedly measured the speed of light by noticing that one of Jupiter's moons would emerge from its eclipse 11 minutes early or late depending on the time of year when the earth was closer or further away from Jupiter. His name was Olaf Romer.

Read about him here

share|improve this answer
2  
I think you mean Ole Rømer. en.wikipedia.org/wiki/Ole_Rømer –  Hans-Peter E. Kristiansen Sep 26 '13 at 23:37
    
Yes, there appears to be a disparity in the spelling of his name, from Olaf Roemer, and Olaf Romer to Ole Rømer. Various references spell it differently. For example: scienceworld.wolfram.com/biography/Roemer.html. Thanks for pointing that out. –  John Faulkner Sep 27 '13 at 15:25
add comment

Not the answer you're looking for? Browse other questions tagged or ask your own question.