Kanizsa Triangle - To start with described through the Italian psychologist Gaetano Kanizsa in 1955, this popular illusion contains a white, equilateral triangle that appears to be obscuring 3, black circles plus the define of another equilateral triangle. So, there aren't any photoreceptors in that location of the eye https://andersonsbgkm.blogs100.com/36277277/illusion-of-kundun-mu-online-secrets