Illusory_watch_design_blue

Illusory Watch Design

Design submitted by Cory from the USA.

Cory says: “Optical illusions are interesting because they manipulate our imperfect perceptions.  While browsing through several optical illusion sites, I ran across Pinna’s Intertwining Illusion.  Discovered by Baingio Pinna of the University of Sassari in Italy, the circles appear to spiral and intersect, but are in fact an orderly set of concentric circles”. Continue reading