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Gianni A. Sarcone
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This is an animation of a rotating hollow mask. At the moment you see the back, so that the hollow side is pointing to you, something surprising happens. It doesn't look hollow, it looks like a normal mask - rotating the other way ! The most probable reason is that our vision doesn't accept hollow faces. |
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It's like there are three rivers flowing on this picture. That's caused by afterimages on your eyes while they are looking all over it. |
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