Narwhal (narwhal)'s status on Saturday, 28-Feb-15 02:52:49 UTC

  1. Narwhal Narwhal

    This is a popular example of the phenomenon, you've probably seen it before. Tile A and Tile B are both actually the same colour, but because out brain assumes shadows make things darker we assume that Tile B is lighter than it actually is. http://upload.wikimedia.org/wikipedia/commons/6/60/Grey_square_optical_illusion.PNG

    Saturday, 28-Feb-15 02:52:49 UTC from web in context