• Born date: 1644-10-05
  • Born in: Aarhus
  • Death date: 1710-09-19
  • Death in: Copenhagen
Ole Rømer

Ole Christensen Rømer (Danish pronunciation: [o(ː)lə ˈʁœːˀmɐ]; 25 September 1644, Århus – 19 September 1710, Copenhagen) was a Danish astronomer who in 1676 made the first quantitative measurements of the speed of light. In scientific literature alternative spellings such as "Roemer", "Römer", or "Romer" are common.

Wikipedia
Comment