Tinselman had a link to these wonderfully confusing images. Nothing is actually moving on the screen – they work if you print them out, too. Here’s a short explanation of the peripheral drift illusion. And I found this article on the science of optical illusions.

  • alok

    the link to explanation wasn’t entirely correct. it just points to a pdf with further enhancements to the illusion, it not exactly a short explanation….

  • Mr. Monday


    You can check the research from SIGGRAPH 2008:

    Automatically generate animating self-animating images :)

  • Mohid

    Wow, nice illusion :).

    best regards