This work was the winner of the 2010 Best Optical Illusion conducted in Florida.
It is a three-dimensional construction that seem to slip, from the center, all down. When balls are placed at the end of each of these and go straight up!
Entitled “Impossible Motion”, this work was created by Kokichi Sugihara the Instuto for Advanced Study in Mathematics Meiji Kawasaki, Japan.
(source: arturogoga)