Dragon Illusion
This is a cool optical illusion you can download, print out and construct yourself. The dragon appears to move its head to follow the observer. Check out the video to see the illusion in action. If you put it together yourself, close one eye and move your head around to see the effect. Wild.
How does it work? If we move around when viewing a solid object, our brain knows how the object we are looking at should behave. However the dragon gives us the wrong clues, because we mis-interpret what its shape is. We assume that the nose of the dragon is pointing out towards us, but in fact the dragon’s head is concave.
