A very cool optical illusion where the rings appear to be expanding. The nickname given to this optical illusion by the creator is “Throwing Cast Nets”. Click on the image of the optical illusion to see the image in full-size and to get the full effect.
The famous internet phenomenon Rick Astley and the rickroll prank has now become an optical illusion. Look at the black and white abstract picture below and stare at the plus sign in the middle of the picture for 30 seconds or longer. After 30 seconds look away and blink fast repeatedly.
