Illusion From Rotating Rings
When you first look at the rings moving in this video, it might appear that they are all moving together uniformly. Stare at the dot in the middle, however, and the three circles will become “unstuck” and begin to slide independently of one another.
This illusion was created by Stuart Anstis & Patrick Cavanagh and was a finalist for the 2011 Best Illusion of the Year Contest.