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Asked by sparks to Asif, Laura, Lena, Sean, Viv on 17 Mar 2012.
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Lena Ciric answered on 17 Mar 2012:
I’ve found a good scientific definition of the colour black:
“Black is the lack of all colors of light, or an exhaustive combination of multiple colors of pigment.” In other words, black either results from all light being absorbed or from a combination of different colours that collectively absorb all colours.
So, it’s not an unknown colour, by definition – it is the colour that absorbs all light.
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Sean Murphy answered on 19 Mar 2012:
The colours we know are described in what we call the electromagnetic spectrum. Rather than a certain number of colours there is a continuous spectrum of light, with most of it invisible. Colour is really just a form of radiation, just as radio waves and X-rays are.
Comments
sparks commented on :
yes but because it absorbs all the light.. we can’t see it.. so if it did reflect light, wouldn’t it be a colour that we just don’t know because it absorbs all light???
Lena commented on :
But it doesn’t reflect light so it’s what we know as black. It’s a weird concept, I agree.