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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: No - Property: No
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Image size:
4640 x 4519 px | 60.0 MB
Print size:
39.3 x 38.3 cm | 15.5 x 15.1 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