Historedia
Person

Ole Rømer

Events
1
Episodes
1
Years
1849

Every event in Historedia whose sources name Ole Rømer, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Hippolyte Fizeau measures the speed of light on Earth

    1849

    Role: Historical Reference for Astronomical Measurement

    1. 1849 · Earth-based experimental setupTerrestrial Measurement of Light Speed

      Fizeau measured the speed of light on Earth using a toothed wheel, reporting 315,000 km/s and surpassing Rømer's 1676 estimate in precision.

Sources

  1. Hippolyte Fizeau Wikipedia, revision of 2026-10-03
  2. Speed of light Wikipedia, revision of 2026-09-27