flicker colours
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pattern-induced flicker colours — see Benham s top … Dictionary of Hallucinations
Fechner's colours — Also known as subjective colours, illusory colours, and flicker colours. The eponym Fechner s colours refers to the German psychologist Gustav Theodor Fechner (1801 1887), who in 1838 published an account involving the creation of illusory… … Dictionary of Hallucinations
Benham's top — Also known as Benham s disk, Benham s wheel, and artificial spectrum top. The eponym Benham s top refers to the British amateur scientist and toymaker Charles Edwin Benham (18601929), who in 1894 published an account in Nature describing a… … Dictionary of Hallucinations
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… … Universalium
piciform — [pi′sə fôrm΄] adj. of, or having the nature of, an order (Piciformes) of birds, including woodpeckers and toucans, having two front and two hind toes for clinging to vertical surfaces * * * ▪ bird Introduction any member of the group of birds… … Universalium
ZX Spectrum graphic modes — The ZX Spectrum is generally considered to have limited graphical capabilities in comparison to other home computers of the same era such as the Commodore 64, largely due to its lack of a dedicated graphics chip. Nevertheless, throughout its… … Wikipedia
Christmas lighting technology — has been subject to considerable development and variation since the replacement of candles by electric lights. Contents 1 Incandescent Christmas Lights 2 LEDs 3 Fiber optic lights 4 B … Wikipedia
coloration — colorational, adj. colorationally, adv. /kul euh ray sheuhn/, n. appearance with regard to color arrangement or use of colors; coloring: the bold coloration of some birds. [1605 15; COLOR + ATION] * * * ▪ biology Introduction in biology,… … Universalium
List of birds of Mexico — This is a list of the bird species recorded in Mexico. The avifauna of Mexico includes a total of 1,085 species, of which 108 are endemic, six have been introduced by humans, and 51 are rare or accidental. One species listed is extirpated in… … Wikipedia
