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Scientific American

March 1, 1978

1 min read

The Amateur Scientist, March 1978

Visual illusions that can be achieved by putting a dark filter over one eye

By Jearl Walker

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This article was originally published with the title “The Amateur Scientist” in Scientific American Magazine Vol. 238 No. 3 (March 1978), p. 142
doi:10.1038/scientificamerican0378-142

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