Colour
the dimension of colour
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- Last Updated on Wednesday, 25 January 2012 14:21
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world of colour
experience
colour vision
colour temperature
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- Last Updated on Wednesday, 25 January 2012 11:48
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An article on colour space
It is a known fact that light changes colour as it gets brighter. In one sense only is this true: for black-body radiators. As a material is heated it starts to glow, at first cherry red, then orange, yellow, then "white" until finally the light appears blue (or at least bluish). This is an everyday phenomenon and accounts for the difference in the "whiteness" between ordinary tungsten lamps and the much hotter halogen-quartz lamps. It also accounts for the difference between the colour of stars: the redness of Betelgeuse, for example, compared to the blueness of Rigel, both in the constellation of Orion.
There is a separate section on colour temperature [here] as well as a discussion on the different illuminant standards and "white balance".
colour blindness
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- Last Updated on Wednesday, 25 January 2012 11:45
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We first become aware of colour blindness when we meet others who cannot distinguish the colours we can or when others seem to be able to make distinctions tthat are invisible to us.. The cause is most definitely not linguistic; the colour blind person, when asked to match certain colours, will demonstrate an inability to do so.