On Mar 1, 3:38*pm, Art Unwin wrote:
On Mar 1, 2:45*pm, (Dave Platt) wrote:



In article ,
Michael Coslo wrote:

Do you really think green is a primary color, you great braying
jackass?

That he may be, but Green is one of the three primary colors. At least
in additive color mode Red Blue Green. If you are talking about
subtractive color, it is Cyan Magenta Yellow. Add black and it becomes
the standard printing system.

True, but the "primariness" of the colors in these various color
systems are far from universal. *These colors are "primary" only with
regard to the visual systems of human beings (and some other primates)
delete

David Platt made a comment on the subject of colour with reference to
who defines colour.
Animal eyes are different to human eyes in many ways including
physical distance apart.
angles of eyeball placement etc.
It doesn't hurt to think about what an eyeball is and its function.
A eyeball to my mind is nothing but a small FaradyCage that is
impinged upon by charge carrying particles where the impact is
transformed into a electric current so it may traverse the brain.
Their is really no way to descriminate the amount of filtering, prisms
and oils that is around with the species , or in the differences of
different brain abilities to decipher the character of different
colors. So I would imagine that some species can not identify the
color as humans see it and may not even discern color from black and
white. So nobody should take the step of assumption and making it a
fact.
Thanks to all you made the correscting comments
Art