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Benham's Disk (Benham's Top)

Benham's Disk (Benham's Top) a top painted with the pattern shown. When the disk is spun, arcs of pale colour, called Fechner colours (or pattern-induced flicker colours (PIFCs), are visible at different places on the disk. Not everyone sees the same colours. Created by Charles Benham (1860-1929) an English newspaper-man and toymaker. Dated 19th Century.
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Title: Benham's Disk (Benham's Top)
Caption: Benham's Disk (Benham's Top) a top painted with the pattern shown. When the disk is spun, arcs of pale colour, called Fechner colours (or pattern-induced flicker colours (PIFCs), are visible at different places on the disk. Not everyone sees the same colours. Created by Charles Benham (1860-1929) an English newspaper-man and toymaker. Dated 19th Century
Credit: Album / World History Archive
Releases: ? Model Release: No - ? Property Release: No
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Image size: 4470 × 4691 px | 60.0 MB
Print size: 37.8 × 39.7 cm | 1759.8 × 1846.9 in (300 dpi)
Keywords: 19TH CENTURY • ARCS • BENHAM'S DISK • BENHAM'S TOP • BRITAIN • BRITISH • CHARLES BENHAM • CHARLES EDWIN BENHAM • CHILD • CHILDREN • COLOUR • DR. GUSTAV THEODOR FECHNER • ENGLAND • ENGLISH • ESSEX COUNTY STANDARD • FECHNER COLOUR EFFECT, THE • FECHNER COLOURS • FUN • GUSTAV FECHNER • GUSTAV THEODOR FECHNER • HERMANN VON HELMHOLTZ • ILLUSION • ILLUSIONS • INVENTION • INVENTOR (MALE) • INVENTOR • JOURNALIST • NEWSPAPER-MAN • PAINT • PAINTED • PALE • PATTERN • PATTERN-INDUCED FLICK COLOURS • PIFCS • PLAYING • PLAYTIME • SPIN • SPINNING • SPUN • TOP • TOY • TOYMAKER • TOYS