RGB Color Theory Applied to Print, vsn 3

This is the sequel to the RGB Color Theory lecture, where I apply that theory to explain how print works. In this video, I answer once and for all the question of what are the true primary colors, what the big difference between ink and paint is, whether or not cyan ink reflects blue and green light, how halftoning and color separation works, why we need black ink, and whether or not yellow ink absorbs all the blue light (and the yin/yang implied from this answer).
Note: This video was created as a lecture in my class on color and printing at Clemson University. I couldn't deliver the class in person, so I made a video. I figgered I may as well make it available to everyone, sinc ei had the video already.
Nite: This the third version of this video that I have uploaded. I now think that the audio has been fixed.

[@rafograph]

Thank you very much for sharing!

[@JohnSeymourTheMathGuy]

Here is a link to the lecture that describes RGB Color Theory: th-cam.com/video/iGEzTYPiWgU/w-d-xo.html

[@flexoexpert]

It is always a pleasure to view your video lessons and always learn something new.
Did you try to swap the print sequence of the CMY test with page 1 over page 2?
Is the Red resulting from M/Y same as Y/M?

[@JohnSeymourTheMathGuy]

Thanks, and thanks for the interesting question.
We tried this in class today. We found out that the color is indeed different. In general, the color of the two sheets will lean a bit toward the color on top.
Why? If these were inks, we might conclude that the acetate filters have some turbidity in the filters. But yet, they do not look cloudy at all.
So, what gives? There is an air gap between the two. That air gap allows for some additional reflections. First, if one ink is "optically connected" to the other, light that is in the upper ink headed for the lighter ink will just proceed to the lower ink.
But if there is an air gap, as it is with the acetate filters, then some light will reflect back at the filter-to-air interface. That light will not get a chance to see the other filter.
This explanation can be tested by putting a little water between the filters. I expect that any color difference will be minimal in this case. I will test this in class on Thursday and report the results.

[@Amybeth_LearnAdobe123]

Thank you !