old_spice_optical_illusion_thumb

Jeez, when it comes to being politically correct, you have to be the strictest audience the world has seen :) Once again I apologize for referring to our lady friends as “chicks” in my previous post. Dunno why would someone find this offensive, since I consider this more of a compliment. Perhaps I haven’t mastered [...]

blue-triangles-illusion

This is a diamond variation of the Craik O’Brien Cornsweet illusion. What you have to do, is to look at each row of diamonds below. Does each row appear darker than the row above it? It sure does to me. In reality, all of the diamond shapes present in this figure are in fact identical [...]