Is this picture an instruction how to make the optical illusion with spiral? (Picture 1) Kimmo Huosionmaa In the picture above the text is a figure of the ancient astronaut, or maybe this is not an astronaut at all. It can be picture or instruction how to create the optical illusion, by using rotating plate, where is drawn the spiral form. Another is so-called “hypnotic spiral” and the second one would be “Van Gogh effect". If the plate would rotate before the observer sees the certain type of picture, that picture seems like moving. This optical trick is very common in the circus and other art happenings. And it is the very influential experience. That kind of tricks was more influential in the prehistoric time, and the only thing, what this person needs is the high-speed plate, where is drawn the spiral shape and the painting, what is drawn by the certain way, and that might cause the effect, that the animals or other things were moving. So in this text, I will gi...