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Re: Red, Blue and Green

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Am 06.09.2016 07:49, schrieb The Starmaker:

>>>>>>> There above are Two primary colors
>>>>>>>
>>>>>>> 1.red, yellow, and blue
>>>>>>>
>>>>>>> 2.red, green, and blue
>>>>>>>
>> ...
>>>>>>> My question is...why are there two "primary" colors on earth?
>>
>> Answer:
>> 1.) subtractive mixture of colours above a white surface
>> 2.) additive mixture of light of different colour on a black background
>>
>> You can easily see the difference on your computer screen, if you use a
>> strong magnifying lens.
>>
>> Then you would see tiny dots in red, blue and green, which together
>> create the impression of white.
>>
>> If you subtract the colours, you use the opposite colours called yellow,
>> magenta and cyan, (which is roughly yellow red and blue).
>
>
> So, if you mix (yellow and blue) what color do you get, a subtractive color, a secondary color, or a primary color?


You use the term 'colour' in different meanings. This is not helpful, if 
you want someone would understand what you write.

There is one meaning of the word 'colour' which denotes a substance. 
This is something like paint and the stuff an artist would use to paint 
a picture.

The other meaning denotes features of light, what also can have a 
colour. This light is emitted or reflected from something, which has in 
our impression this colour.

So: objects have colours and that is how we (as human beings) see them.

The impression of colours of objects come from the construction of the 
human eyes (and brain) and how we see.


If you want to mix colours, you should first make clear, which meaning 
of the term 'colour' you want to use.

Somehow it sounds like you want to mix yellow and blue paint. This would 
generate green paint.

This colour green is not the primary colour of the subtractive system 
used e.g. for printing, since that are yellow, magenta and cyan.


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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