IanSpinning Girl Revisited
February 22nd 2010 05:51
The original post (see here) on this site regarding the spinning girl above sparked much comment and conjecture. Most of the debate centred around whether she was spinning clockwise, anti clockwise or both ways at once, if she switched directions, if it was all real or a hoax, or even if counter clockwise was in fact the correct term!
Well the image is in fact not a hoax, it is a silhouette, and your brain can see her rotating in either direction depending on how it interprets the image at that time.
The picture below makes this easier to see by adding a few features to the girl thus removing the silhouette illusion. If you look closely you will find it's exactly the same image in all three frames!
click image to view in a new window
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