vacuum

space that is empty of matter
Thing general Q11475
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vacuum

Summary

vacuum ranks in the top 1% of general entities by monthly Wikipedia readership (3,708 views/month).[1]

Key Facts

  • vacuum is a type of abstract entity[2].
  • vacuum is part of physics[3].
  • vacuum's Commons category is recorded as Vacuum[4].
  • vacuum's said to be the same as is recorded as Q13047289[5].
  • vacuum's topic's main category is recorded as Category:Vacuum[6].
  • vacuum's refractive index is recorded as {'amount': '+1'}[7].
  • vacuum's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)[8].
  • vacuum's described by source is recorded as The New Student's Reference Work[9].
  • vacuum's partially coincident with is recorded as emptiness[10].
  • vacuum's Stack Exchange tag is recorded as https://physics.stackexchange.com/tags/vacuum[11].
  • vacuum's different from is recorded as vacuum state[12].
  • vacuum's different from is recorded as vacuum cleaner[13].
  • vacuum's density is recorded as {'unit': 'Q844211', 'amount': '+0'}[14].
  • vacuum's on focus list of Wikimedia project is recorded as Wikipedia:List of articles all languages should have[15].
  • vacuum's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[16].
  • vacuum's relative permittivity is recorded as {'amount': '+1'}[17].
  • vacuum's relative permeability is recorded as {'amount': '+1'}[18].

Body

Definition and Type

vacuum is a type of abstract entity[2].

Use and Application

vacuum is part of physics[3].

Influence

Things named for vacuum include vacuum state[19].

Why It Matters

vacuum ranks in the top 1% of general entities by monthly Wikipedia readership (3,708 views/month).[1] vacuum has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[20] vacuum is known by 11 alternative names across languages and contexts.[21]

Entities named for vacuum include vacuum state[19].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . wikidata.org.
  11. [12] . wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . wikidata.org.
  17. [18] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [19] . wikidata.org. → on this site

Aggregate / graph-position facts

  1. [1] . 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). vacuum. Retrieved April 10, 2026, from https://4ort.xyz/entity/vacuum
MLA “vacuum.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/vacuum.
BibTeX @misc{4ortxyz_vacuum_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{vacuum}}, year = {2026}, url = {https://4ort.xyz/entity/vacuum}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): vacuum — https://4ort.xyz/entity/vacuum (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/vacuum · Last refreshed:

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. 1d ago · Twofivesixbot bot · 2026-05-23 view diff on Wikidata ↗
    Relative permeability {'amount': '+1'}
    Part of physics
    Topic's main category Category:Vacuum
    Density {'unit': 'Q844211', 'amount': '+0'}
    + 13 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|3 */ [[Property:P8189]]: 987007531859905171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.