You see colour using three different kinds of cones in our eyes, and these cones can be either red, blue, or green. So where does yellow come in? Green consists of yellow and blue – but how would you only see yellow and not the blue that would make it green?
In: Biology
The colours are just your brain interpreting the electrical signals received by the eyes.
They aren‘t ‚real‘ per se.
They could just as well be numbers.
And numbers make it easier to see how the colour yellow ‚appears‘ in the brain,
So if light activates both green and red receptors, it would create the average ‚number‘ between the two.
So even if green could only send 1 and red only send 9, the brain making the average would get a 5.
Without any of the receptors in the eye ever sending a 5 themselves.
Same with the colour yellow. That’s just what the brain chooses to make things appear that activate both the red and green cones
Latest Answers