impossible object
Sign in to savetwo-dimensional figure representing a projection of a three-dimensional object that cannot exist
Wikidata facts
- Subclass of
- image
- Has part
- logical contradiction
- Image
- Impossible staircase.svg
Show 4 more facts
- has effect
- optical illusion
- maintained by WikiProject
- WikiProject Mathematics
- Commons category
- Impossible objects
- topic's main category
- Category:Impossible objects
Sources (1)
via Wikidata · CC0
~7 min read
Encyclopedic overview
An impossible object (also known as an impossible figure or an undecidable figure) is a type of optical illusion that consists of a two-dimensional figure which is instantly and naturally understood as representing a projection of a three-dimensional object but cannot exist as a solid object. Impossible objects are of interest to psychologists, mathematicians and artists without falling entirely into any one discipline.
Notable examples
Excerpted from Wikipedia’s “impossible object” article, available under the CC BY-SA 4.0 licence.