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Ben Souther

Joined: Dec 11, 2004
Posts: 13410

Is she spinning in a clockwise or counter clockwise direction?
Are you sure?
Keep staring.
Look only at her shadow.

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v ray
Ranch Hand

Joined: Mar 15, 2007
Posts: 223
Look only at her shadow? Are you crazy?
Jim Yingst

Joined: Jan 30, 2000
Posts: 18671
Seems to be it's all shadow. Too bad.

That's wild. Originally I saw her as definitely spinning clockwise (was seen from above). Then I looked at the shadow and saw her as spinning counterclockwise. Now I can't switch back to the former view, even if I cover up the shadow part of the image. It's "locked" in my brain now. I'm trying to figure out what cues indicate clockwise or counterclockwise, but can't really tell. Seems like it's intuitive, but the original intuition was incorrect.

"I'm not back." - Bill Harding, Twister
Ben Souther

Joined: Dec 11, 2004
Posts: 13410

If you look at the shadow of her right foot and picture it moving either in front of or behind the shadow of her left foot, you can switch the direction in which she's spinning (or your perception of the direction).
I agree. Here's the link:
subject: Spinning
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