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Scientific American

February 1, 1985

1 min read

The Amateur Scientist, February 1985

Bidwell's ghost and other phenomena associated with the positive afterimage

By Jearl Walker

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This article was originally published with the title “The Amateur Scientist” in Scientific American Magazine Vol. 252 No. 2 (February 1985), p. 122
doi:10.1038/scientificamerican0285-122

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