Three Rings Forced Perspective Illusion Video credit: Dr Matt Pritchard What am I looking at? Apparent size is relative. It is connected to the distance of the object. This fact can help in creating Forced Perspective videos like this one with three rings of different sizes. More optical illusions:Self-assemblyTwo giantsFloating cat headHeadless ManTetanus RainbowSplash!Big cat on the roofGhost Boat