“Optical Illusions”
This is a website full of various illusions that trick our minds.
“OLED”
http://abload.de/img/lg-oled-incurve-sous-pbp6h.jpg
This is what OLED looks like up close.
“Color”
https://www.dictionary.com/browse/color
This is a dictionary definition of ‘color.’
“Why Do We See in Color?”
https://www.youtube.com/watch?v=PHDLyRtWEiE
This video explains why we see in color, saying that it is basically due to special cells and cones in our eyes.