Checker-Box Illusion Part Two

[JK Walz]

Here is the same picture but with a gray bar connecting the two boxes. Notice that the two boxes both match the gray bar. The gray bar is the same shade along it's entire length but the boxes still look different!

[Savi]

That is interesting indeed... JK, great to see you in class again; even though you were in civilian clothes! Hope you enjoy Spiderman 2, bro.