R a i n b o w - colours in the eye. play with colours use of colour 'physics' of colour how we see colour how computers do colour see also www.colormatters.com. play with colours. colour is surprisingly complex physics, aesthetics, psychology using colour can be fun
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yucky clip art, but was all I could find
so why three primary colours?
not physics … but the eye
two types of sensory cells:
... three types of cones:
… like 3 radios tuned to different stations
256 colours (8 bits) selection of full (24 bit) RGB