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Rømer's determination of the speed of light

1676 experiment which showed that light has finite speed
Event Q2898393
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Rømer's determination of the speed of light

Summary

Rømer's determination of the speed of light is a Q134348943[1]. It has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • Rømer's determination of the speed of light is credited with the discovery of Ole Rømer[3].
  • Rømer's determination of the speed of light is in the country of France[4].
  • Rømer's determination of the speed of light's instance of is recorded as Q134348943[5].
  • Rømer's determination of the speed of light's Commons category is recorded as Rømer's determination of the speed of light[6].
  • Rømer's determination of the speed of light's time of discovery or invention is recorded as +1676-08-22T00:00:00Z[7].
  • Rømer's determination of the speed of light's Freebase ID is recorded as /m/09glk55[8].
  • Rømer's determination of the speed of light's studied by is recorded as history of physics[9].
  • Rømer's determination of the speed of light's Google Doodle is recorded as 340th-anniversary-of-the-determination-of-the-speed-of-light[10].

Body

Works and Contributions

Rømer's determination of the speed of light is credited with the discovery of Ole Rømer[3].

Why It Matters

Rømer's determination of the speed of light has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[2] It is known by 3 alternative names across languages and contexts.[11]

Related Entities

France Ole Rømer

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . Freebase Data Dumps. wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [11] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Rømer's determination of the speed of light. Retrieved May 3, 2026, from https://4ort.xyz/entity/r-mer-s-determination-of-the-speed-of-light
MLA “Rømer's determination of the speed of light.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/r-mer-s-determination-of-the-speed-of-light.
BibTeX @misc{4ortxyz_r-mer-s-determination-of-the-speed-of-light_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Rømer's determination of the speed of light}}, year = {2026}, url = {https://4ort.xyz/entity/r-mer-s-determination-of-the-speed-of-light}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Rømer's determination of the speed of light — https://4ort.xyz/entity/r-mer-s-determination-of-the-speed-of-light (retrieved 2026-05-03)

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