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Re: Red, Blue and Green

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Am 07.09.2016 01:49, schrieb The Starmaker:

>> You use the term 'colour' in different meanings. This is not helpful, if
>> you want someone would understand what you write.
>
>
> The operative word is "primary", not color. PRIMARY!
>
> http://www.dictionary.com/browse/primary
>
> Not secondary, not subtractive...Primary!
>
>
> http://www.dictionary.com/browse/primary-color
>
>
> 1.
> Art. a color, as red, yellow, or blue, that in mixture yields other
> colors.
>

> 2.
> Optics. any of a set of monochromatic colors, as red, green, and blue,

>
> Don't you see that there are TWO sets of primary colors? Or are you
> color blind???


'Colour' is a term, which refers to how human beings are seeing.

So 'same colour' means, that something gives the same impression of 
colour in our brain then something else does.

Only: other beings do not share our impression. So same colour for us 
does not mean same colour for a bee or a bird.

Visible light is also only a small fraction of a way larger spectrum of 
possible frequencies. But humans can only see what is visible.

Other being can see other frequencies and also other phenomena than 
em-waves. E.g. birds can see magnetic fields.

So 'primary colour' stems from the construction of the human eye and is 
not really a physical question.

And obviously you are ignoring the difference between subtractive 
mixture of paint and additive mixture of light.


TH

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Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-03 13:18 -0700
  Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-03 14:57 -0700
    Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-03 16:01 -0700
      Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-04 12:46 -0700
        Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-07 23:22 -0700
  Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-03 16:03 -0700
    Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-03 16:06 -0700
      Re: Red, Blue and Green pcardinale@volcanomail.com - 2016-09-19 17:37 -0700
        Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-20 00:18 -0700
          Re: Red, Blue and Green pcardinale@volcanomail.com - 2016-09-22 11:28 -0700
  Re: Red, Blue and Green Thomas Heger <ttt_heg@web.de> - 2016-09-04 08:06 +0200
    Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-05 22:49 -0700
      Re: Red, Blue and Green Thomas Heger <ttt_heg@web.de> - 2016-09-07 00:40 +0200
        Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-06 16:49 -0700
          Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-07 10:01 -0700
            Re: Red, Blue and Green Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2016-09-07 10:12 -0700
          Re: Red, Blue and Green Thomas Heger <ttt_heg@web.de> - 2016-09-11 05:46 +0200
            Re: Red, Blue and Green mlwozniak@wp.pl - 2016-09-20 01:59 -0700
              Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-20 09:47 -0700
                Re: Red, Blue and Green mlwozniak@wp.pl - 2016-09-20 23:09 -0700
                Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-21 21:48 -0700
    Re: Red, Blue and Green The Starmaker <starmaker@ix.netcom.com> - 2016-09-05 22:59 -0700
  Re: Red, Blue and Green astrofoton@interia.pl - 2016-09-07 13:17 -0700

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