0 Impossible Motion - Must See
Here's a amazing example of the optical illusion. It's all done with the cardboard cut-out and a few balls. In this video shown below, the four wooden balls rolls up on the slopes of the cardboard, just as they are pulled by the attraction of magnet. As there's a slope, this kind of behavior of the balls seems impossible, because it is against the gravity.
In this video of impossible motion, there's not any kind of computer graphics are used, but it's a real captured video from certain angle. Actually happening thing in this video is that the orientations of the slopes are perceived oppositely, and due to this descending motion is misinterpreted as ascending motion.
This was created by the engineering professor kokichi sugihara from the Meiji institute for advance study of mathematical sciences.
