Illusions
The Spiral Tornado Illusion
The Spiral Tornado Illusion — Look at this spinning tornado for a few minutes and then look away at a strong pattern. Watch the pattern twirl and buzz! This is known as the spiral aftereffect. Also, check out this larger version. It also works very effectively.
The Circle Illusion
The Circle Illusion: How many circles do you see in the above graphic? You can leave your answer in the comments below.
The Spinning Balls Illusion
The Spinning Balls Illusion is an incredibly effective optical illusion where the balls seem to spin around the circles. Note that the illusion is stronger with this larger image.
The Spinning Dancer Illusion
With the Spinning Dancer Illusion, the dancer appears to sometimes spin clockwise and then sometimes shift to spinning counter-clockwise. At first you might only see the dancer spinning in one direction, but at some point your vision will shift and you will begin to see the dancer spin in the other direction. When that happens, […]