Štěpán Wilkus – Reverse-phi spinning top
Country: Czech Republic
Author´s description: The illusion creates an apparent motion from a craftfully prepared still image by changing the polarization angle of the spinning top. By creating the image from variously rotated polarization filters, it is possible to change the brightness and colour of individual parts and thus create the perceived rotation of the ring. Adding birefringent materials, such as plastic foils, can even turn the image from black and white to a fully saturated colour pallette. The implementaion of a spinning top puts a “spin” on the reverse phi illusion as the illustrating illusion moves to the real world and makes it interactive, haptic and fun.
