Note: Due to harmful levels of black magic, video is after the jump. Do not watch if you are nursing, pregnant or may become pregnant if I do a card trick.
This simple yet confounding model was named the Illusion of the Year by the Meiji Institute for Advanced Study of Mathematical Sciences, Japan.
This kind of optical illusion, which I named "Impossible Motion", was discovered in my engineering research for machine interpretation of line drawings. In order to check the behavior of my software, I gave what are called "pictures of impossible objects" as the input expecting the software to judge them impossible. However, my software sometimes interprets "pictures of impossible objects" as actual solids, from which I found that some of "pictures of impossible objects" are not impossible; they can be constructed although general angles are used where they look rectangular.
Well, what did you think? Pretty neat, huh? I thought so. Of course, I could tell exactly what was going from the very beginning. Bruce Willis' character was already dead!
Hit it for the video (complete with visual explanation).
Thanks to Merlin the Majanitor, who doesn't cut women in half as much as dilute bleach in water and mop with it.