Spinning Gif

Dark Spiral Illusion

Here’s a beautiful spiral illusion. As the pattern spins in this gif, you can feel yourself be enveloped by the spiral. The spiral aftereffect is also strong! Here’s what the graphic looks like when it’s not spinning:

The Spiral Aftereffect

Here is an incredible example of The Spiral Aftereffect. Watch the spinning, moving gif below. Then look at a strong stationary pattern nearby. Watch that spin and bubble and move as well. That’s the spiral aftereffect.