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2. Shepard tables - Wikipedia

   en.wikipedia.org/wiki/Shepard_tables

   Shepard tables illusion, named for its creator Roger N. Shepard. Shepard tables (also known as the Shepard tabletop illusion) are an optical illusion first published in 1990 as "Turning the Tables," by Stanford psychologist Roger N. Shepard in his book Mind Sights, a collection of illusions that he had created. [1]

3. Vanishing puzzle - Wikipedia

   en.wikipedia.org/wiki/Vanishing_puzzle

   Interactive SVG of The Disappearing Bicyclist – in the SVG file, move the pointer to rotate the disc. A vanishing puzzle is a mechanical optical illusion comprising multiple pieces which can be rearranged to show different versions of a picture depicting several objects, the number of which depending on the arrangement of the pieces.

4. List of optical illusions - Wikipedia

   en.wikipedia.org/wiki/List_of_optical_illusions

   The size–weight illusion is also known as the Charpentier illusion or Charpentier–Koseleff illusion. Stepping feet illusion: The stepping feet illusion is influenced by the contrast between moving objects and their background. Stroboscopic effect: Swept-plane display: Ternus illusion: The Ternus illusion (1926/1938) is based upon apparent ...

5. Op art - Wikipedia

   en.wikipedia.org/wiki/Op_art

   Time magazine coined the term op art in 1964, in response to Julian Stanczak's show Optical Paintings at the Martha Jackson Gallery, to mean a form of abstract art (specifically non-objective art) that uses optical illusions. [4] [5] Works now described as "op art" had been produced for several years before Time's 1964 article.

6. Clearly Impossible - Wikipedia

   en.wikipedia.org/wiki/Clearly_Impossible

   The illusion is very similar in principle and performance to the older "Thin Model" versions of sawing a woman in half, with the exception that the boxes used to cover the assistant being divided are clear, rather than opaque. In basic concept, it is very similar to the transparent sawing developed by Les Arnold in the late 1970s.

7. Missing square puzzle - Wikipedia

   en.wikipedia.org/wiki/Missing_square_puzzle

   The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.