Re: Mercury

Am Donnerstag000006, 06.03.2025 um 22:31 schrieb The Starmaker:

Thomas Heger wrote:

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Am Donnerstag000006, 06.03.2025 um 06:35 schrieb The Starmaker:
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Can you name the Primary Colors?
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If you ask that question to ANYBODY..they will all give you the WRONG
answers.
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Here is the right answer: red, blue, green and yellow.
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definition:
pri·ma·ry a primary color.
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https://www.google.com/search?q=define+primary&oq=define+primary

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Not true for light:
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With color-picker(1), if I mix red and green, I get yellow.
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https://imgur.com/ZBxIObk

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Another person as inglish for a second language..
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The Question reads: "Can you name the Primary Colors?"
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you named 3, you're missing the color Blue.
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There are no such things as 'the primary colours', because color itself
is a function of the (human) eyes and brain.
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But 'human eyes' are actually specific to us as human beings and
therefore not 'primary'.
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What we humans regard as colour is created by three types of cells in
the eyes, which are receptive for certain spectra in the visible range,
which we humans call 'red', 'green' and 'blue'.
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With these three types of cell we can see colours in the visible part of
the vast range of possible em-frequencies.
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Other creatures have different eyes and can see diffent colours,
possibly with a different set of primary colours (for which we have no
names).
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TH

  I gave everybody a link so they can understand the definition of the
word..."primary".
  The link states:
 definition:
a primary color.
   And dis German guy sez "There are no such things as 'the primary
colours'"!

Look at this:
https://en.wikipedia.org/wiki/Trichromacy
Quote:
"The normal explanation of trichromacy is that the organism's retina contains three types of color receptors (called cone cells in vertebrates) with different absorption spectra. In actuality, the number of such receptor types may be greater than three, since different types may be active at different light intensities. In vertebrates with three types of cone cells, at low light intensities the rod cells may contribute to color vision.
Humans and other animals that are trichromatsHumans and some other mammals have evolved trichromacy based partly on pigments inherited from early vertebrates. In fish and birds, for example, four pigments are used for vision. "

 Is anybody surprised?
    I cannot even ask dat German guy to name 'a primary color' since he
tinks  "There are no such things as 'primary colours'"
 

Well, you need to specify, to which kind of beings you refer with 'primary colour'.
Humans have three primary colours, which are called 'red, blue and green'.
...
TH