Interesting test for whether you use more of your right brain or your left. If you see the dancer spinning clockwise, you’re using the right brain; counter-clockwise, the left. Not sure how accurate it is, but it’s a weird effect.
When I load the page, I can’t help but see her going clockwise. If I just watch the picture move, it stays clockwise. However, about the moment I noticed that the dancer appeared to be…ah…more anatomically correct than you would expect a computer-generated silhouette to be, she flipped counter-clockwise. It takes a bit, but for me looking directly at any detail in the image flips the motion to counter-clockwise. That might actually make sense, given the descriptions of right vs. left brain they use.
Link courtesy of Too Many Topics, Too Many Time, which has a different trigger for flipping the rotation.
And, just for today: