Danish astronomer (1644-1710) who demonstrated conclusively that light travels at a finite speed. Also invented the "Meridian Circle" instrument for charting star positions in the sky.
Catalog of the Scientific Community: Roemer, Ole Christensen
Background data on the scientist.
Wikipedia: Ole Rømer
Short crosslinked encyclopedic article.
Other languages 1
Last update:October 18, 2016 at 7:54:06 UTC