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Poggendorff illusion

geometrical-optical illusion
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Poggendorff illusion

Summary

Poggendorff illusion is a geometrical-optical illusion[1]. It draws 36 Wikipedia views per month (geometrical_optical_illusion category, ranking #4 of 4).[2]

Key Facts

  • Poggendorff illusion's image is recorded as Poggendorff illusion.svg[3].
  • Poggendorff illusion's instance of is recorded as geometrical-optical illusion[4].
  • Johann Christian Poggendorff is named after Poggendorff illusion[5].
  • Poggendorff illusion's Commons category is recorded as Poggendorff illusion[6].
  • Poggendorff illusion's Freebase ID is recorded as /m/024_hs[7].
  • Poggendorff illusion's Encyclopædia Britannica Online ID is recorded as topic/Poggendorff-illusion[8].
  • Poggendorff illusion's MathWorld ID is recorded as PoggendorffIllusion[9].
  • Poggendorff illusion's maintained by WikiProject is recorded as WikiProject Mathematics[10].
  • Poggendorff illusion's Microsoft Academic ID is recorded as 2776184052[11].

Why It Matters

Poggendorff illusion draws 36 Wikipedia views per month (geometrical_optical_illusion category, ranking #4 of 4).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[12]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . Freebase Data Dumps. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [12] ↑ . Wikidata sitelinks. 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). Poggendorff illusion. Retrieved May 3, 2026, from https://4ort.xyz/entity/poggendorff-illusion
MLA “Poggendorff illusion.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/poggendorff-illusion.
BibTeX @misc{4ortxyz_poggendorff-illusion_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Poggendorff illusion}}, year = {2026}, url = {https://4ort.xyz/entity/poggendorff-illusion}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Poggendorff illusion — https://4ort.xyz/entity/poggendorff-illusion (retrieved 2026-05-03)

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