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Fechner color effect
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== Benham's top == {{unreferenced section|date=January 2024}} '''Benham's top''' is named after the English newspaper-man, amateur scientist, and toymaker [[Charles Benham]], who in 1895 sold a [[Spinning top|top]] painted with the pattern shown. Benham was inspired to propagate the Fechner color effect through his top after his correspondence with [[Gustav Fechner|Gustav Theodor Fechner]], who had observed and demonstrated the said effect. Benham's top made it possible for speakers of the English language to learn of the Fechner color effect, about which Fechner's original reports were written in German.
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