In a world looked at in pictures in the mind, we subjectively ''see'' a green apple turn into a red apple, likewise we can see this of Bananas but obviously green to yellow.
Subjectively I do not notice any change in the light , but I do notice a change in ''colour'' of the apple or the Banana.
delta (green) to red = ?
delta (green) to yellow = ?
added - an apple remains red even in the shade and a banana remains yellow.
Edited by xyz, 19 June 2016 - 03:57 AM.