Foucault pendulum

simple device conceived as an experiment to demonstrate the rotation of the Earth
Thing physical_phenomenon Q178841
Foucault pendulum
Arnaud 25 · Public Domain · Wikimedia
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Summary

Foucault pendulum is a physical phenomenon[1]. It ranks in the top 4% of physical phenomenon entities by monthly Wikipedia readership (11,309 views/month).[2]

Key Facts

  • Creator: Léon Foucault[3]
  • Named after: Léon Foucault[4]
  • Subclass of: pendulum[5]
  • Has use: scientific demonstration[6]
  • Commons category: Foucault pendulums[7]
  • Inception: February 1851[8]
  • Has cause: Earth's rotation[9]
  • Topic's main category: Category:Foucault pendulums[10]
  • Commons gallery: Foucault pendulum[11]
  • Location of creation: Paris[12]
  • Described by source: Meyers Konversations-Lexikon, 4th edition (1885–1890)[13]
  • Different from: Foucault's Pendulum[14]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[15]

Body

Influence

Things named for Foucault pendulum include Foucault's Pendulum[16], a literary work[17], founded in 1988[18], written by Umberto Eco[19].

Why It Matters

Foucault pendulum has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[20] It is known by 54 alternative names across languages and contexts.[21]

Entities named for it include Foucault's Pendulum[16], a literary work[17], founded in 1988[18], written by Umberto Eco[19].

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [16] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [17] ↑ . Wikidata. wikidata.org. → on this site
  2. [18] ↑ . Wikidata. wikidata.org. → on this site
  3. [19] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [20] ↑ . Wikidata sitelinks. wikidata.org.
  3. [21] ↑ . 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). Foucault pendulum. Retrieved October 11, 2026, from https://4ort.xyz/entity/foucault-pendulum
MLA “Foucault pendulum.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Oct. 2026, https://4ort.xyz/entity/foucault-pendulum.
BibTeX @misc{4ortxyz_foucault-pendulum_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Foucault pendulum}}, year = {2026}, url = {https://4ort.xyz/entity/foucault-pendulum}, note = {Accessed: 2026-10-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Foucault pendulum — https://4ort.xyz/entity/foucault-pendulum (retrieved 2026-10-11)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 13w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 3aRWrG
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  2. 20w ago · Twofivesixbot bot · 2026-05-24 view diff on Wikidata ↗
    Instance of → physical phenomenon
    Named after → Léon Foucault
    On focus list of wikimedia project → Wikipedia:Vital articles/Level/4
    Named after → —
    + 15 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|3 */ National library of israel j9u id: 987007548099705171, mv to monolingual text names on J9U statements"
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