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Views:9467
ID
Language English
Title Helmholtz square
Free Keywords
Description The vertical side of a square appears to be longer than the horizontal side when the square is filled with a horizontal grating, and vice versa. This illusion was presented by Helmholtz (1866 or before).
This image was drawn by Akiyoshi Kitaoka in 2007.
Date Apr 30, 2008
Last Modified Date Apr 30, 2008 17:24:17
Created Date Apr 30, 2008 17:24:17
Contributor Akiyoshi Kitaoka (akitaoka)
Item Type Stimulus
Change Log(History)
Stimulus type Picture
Developer
Akiyoshi Kitaoka
Preview
Stimulus file helmholtzsquareL.jpg
Type : image/jpeg Download
Size : 419.8 KB
Last updated : Apr 30, 2008
Downloads : 188

Total downloads since Apr 30, 2008 : 188
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Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 2.5 License.
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