clockwise
posted by dsk on October 23rd, 2007 at 6:06PM

And any one who says otherwise is a god-dang communist.

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posted by dennisn on October 16th, 2007 at 12:46PM

Clockwise originally -- although I think the correlation between that and right/left-brainness is dubious.

I think part of the problem of reversing the motion is the timing -- the brain seems to get addicted to a repetitive motion/rhythm -- I find looking at the image peripherally, and visualizing the reversed motion first, before returning to the image helps.

I remember when I first saw this animation, thinking that it might be a GIF exploit -- that might take advantage of slight timing imperfections to yield different rotations in different browsers -- or randomly changing rotations.

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