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Old 03-11-2010, 10:07 AM   #12
Krystian Galaj
Guru
Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.Krystian Galaj can tame squirrels without the assistance of a chair or a whip.
 
Posts: 820
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Join Date: Nov 2007
Location: Warsaw, Poland
Device: Bookeen Cybook
Quote:
Originally Posted by TGS View Post
It's an illusion - it's not rotating at all, being a two dimensional image. The point is that we can perceive it to be rotating clockwise or anti-clockwise and this appears to be bi-stable - it seems to just flip between the two possibilities, though having disambiguated to the image to be moving in one direction it is sometimes quite difficult to "get it" to go in the opposite direction.
Well, not for my mind. To me, it's always spinning clockwise, and though I can understand how it should look if it was spinning anti-clockwise, I can't make my mind see it as such. Only clockwise.
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