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colour
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Color wheel
The video thumbnail image shows a purple and pink flower in a field.
Who created the color wheel?
Isaac Newton's prism experiment
The science behind the color black
colour circle colour mixing energy distribution in light from daylight spectral reflectance curve of emerald green chromaticity diagram
For Students
Diffraction grating
colour summary
Quizzes
Artist paint brushes and watercolor paintbox on wooden palette. Instruments and tools for creative leisure. Creative background. Paintings art concept. Painting hobby. Back to school. Top view.
More Art and Colors Quiz
Color wheel, visible light, color spectrum. Colour wheel
The Origins of Colors, Pigments, and Dyes
Read Next
Color wheel, visible light, color spectrum. Colour wheel
Are Black and White Colors?
baby girl with toy bunny rabbit.
Has Pink Always Been a “Girly” Color?
Discover
Close-up of ostriches (Struthio camelus) necks and heads; location unknown.
6 of the World's Most Dangerous Birds
Srinivasa Ramanujan, Indian mathematician and autodidact.
6 Interesting Facts about Srinivasa Ramanujan
Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.
10 of the World’s Most Dangerous Fish
The Jeff Koons tulips sculputure outside the Guggenheim Museums in Bilbao, Spain, Basque Country.
What’s the Difference Between Modern and Contemporary Art?
Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society
The 10 Greatest Basketball Players of All Time
Watergate scandal. Richard M. Nixon. President Nixon gives a press conference and talks to the press, March 12, 1971.
9 American Political Scandals
Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden
7 Winter Solstice Celebrations From Around the World
Color wheel
Color wheel The RYB color model is being illustrated on a color wheel.

colour

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Also known as: color
Written by
Kurt Nassau
Consultant. Research Scientist, AT&T Bell Laboratories, Murray Hill, New Jersey, 1959–89. Author of The Physics and Chemistry of Color.
Kurt Nassau
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Also spelled:
color

colour, the aspect of any object that may be described in terms of hue, lightness, and saturation. In physics, colour is associated specifically with electromagnetic radiation of a certain range of wavelengths visible to the human eye. Radiation of such wavelengths constitutes that portion of the electromagnetic spectrum known as the visible spectrum—i.e., light. Vision is obviously involved in the perception of colour. A person can see in dim light, however, without being able to distinguish colours. Only when more light is present do colours appear. Light of some critical intensity, therefore, is also necessary for colour perception. Finally, the ...(100 of 8893 words)

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