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Author Topic: Is everything colourless in the dark ?  (Read 2840 times)

Offline neilep

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Is everything colourless in the dark ?
« on: 28/07/2004 11:07:41 »
I suppose this is another one of my 'I'm stating the bloody obvious and still missing the point' questions...but as I understand it, colour from anything that we see is a result of the reaction of light with the surface yes ?...so am I right in assuming that when the lights go out, with the abscence of light the colours are gone, we can't just not see them but there are no colours to be seen anyway, in the dark.

Your colourful explanations or black and white straight talking answers are appreciated...thanks

'Men are the same as women...just inside out !'
« Last Edit: 28/07/2004 11:08:19 by neilep »


 

Offline gsmollin

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Re: Is everything colourless in the dark ?
« Reply #1 on: 28/07/2004 14:37:17 »
I think you answered your own question. Of course, even in the "dark", there is other electromagnetic radiation, thermal infrared, cosmic rays; "Beauty all around, if we could but perceive."

In addition, your eyes do not respond to colour (UK spelling) in dim light.
 

Offline neilep

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Re: Is everything colourless in the dark ?
« Reply #2 on: 28/07/2004 16:30:19 »
*sigh* thanks gsmollin......

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Offline tweener

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Re: Is everything colourless in the dark ?
« Reply #3 on: 28/07/2004 22:34:25 »
Beauty all around...  If you define "color" as certain wavelengths of em radiation (light) impinging on your retina, then yes, when the lights go out there is no color.  The materials that selectively absorb and scatter the radiation and thus appear to our eye/brain as having a color are still there even if the lights are out, so in that sense the "color" still exists.

And don't even get into the debate about "If a tree falls in the woods and noone is there to hear it....."  :D

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Offline neilep

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Re: Is everything colourless in the dark ?
« Reply #4 on: 29/07/2004 01:00:50 »
Thanks John...I was going to mention the falling tree thing but felt that although both questions seemed similar initially, that they were really quite incongruous by the fact that the colour question did not require human absence.

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Re: Is everything colourless in the dark ?
« Reply #4 on: 29/07/2004 01:00:50 »

 

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