Rotating Grapes by Akiyoshi Kitaoka

Motion 11 August 2014 0 Comments

Rotating Grapes by Akiyoshi Kitaoka

As you move your eyes around this image, the purple and yellow grapes appear to rotate around in circles.  Be careful with this one, you might start to get a little bit dizzy if you look at it for too long! To see more rotating circles, take a look back at the motion illusion in […]

Turning Wheel Optical Illusion

Animation 17 March 2014 0 Comments

Spinning Wheel Optical Illusion

Which way is this wheel on this old postcard turning?  Are you sure?  Stare at it for a little while and you might find that the direction the wheel is rotating in will change. If you stare up at a ceiling fan while it is spinning, you can replicate this strange effect. (via foto-jennic.com)

Rotation Generated by Translation

Motion,Video 3 June 2013 0 Comments

Rotation Generated by Translation

This illusion concerns apparent rotation generated by pure translation.  Square patterns consisting of four segments appear to rotate when they move straightly at a constant speed across the grid background.  More surprisingly, the rotations in opposite directions can be generated by exactly the same square patterns.  This illusion might be explained by the well-known inchworm […]