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Boomerang Illusion: Difference between revisions
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== Publications == | == Publications == | ||
* Presented as an optical illusion in [[Simple Conjuring Tricks]] by [[Will Goldston]] (1913) | * Presented as an optical illusion in [[Simple Conjuring Tricks]] by [[Will Goldston]] (1913) | ||
* A kind of bet in [[200 More Tricks You Can Do]] by Howard Thurston as | * A kind of bet in [[200 More Tricks You Can Do]] by [[Howard Thurston]] as ''Which Is Larger?'' (1927) | ||
== Variations of the shape == | == Variations of the shape == | ||
Revision as of 02:14, 13 September 2008
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This page incorporated content from Jastrow_illusion,
a page hosted on Wikipedia. Please consult the history of the original page to see a list of its authors. Therefor, this article is also available under the Creative Commons Attribution-ShareAlike License |
Boomerang Illusion (also known as the Jastrow Illusion) is an effect based on an optical illusion in which two boomerang shapes appear to shrink and grow.
The optical illusion is credited to Professor Joseph Jastrow, a pioneering psychologist, who used it to illustrate optional illusions in 1891.
It's sold as part of many magic kits to children.
Publications
- Presented as an optical illusion in Simple Conjuring Tricks by Will Goldston (1913)
- A kind of bet in 200 More Tricks You Can Do by Howard Thurston as Which Is Larger? (1927)
Variations of the shape
- Noses
- Bananas
- Rainbows
- Fish