The best parts of some of greenpro2009’s featured Illusions. At At 1:19 there are 4 shades of blue going from lightest to darkest (left to right). If the transition point between the shades is covered, our eyes and brains can’t process the difference between neighboring shades. We see them as the? exact same shade even though they are different.
Uploaded to YouTube by greeenpro2009
http://www.youtube.com/watch?v=NUMWxhISvhk
Retrieved Tuesday 15th March 2011 9:35 pm EDT