I love this one. Which direction is our gal spinning: clockwise or counter-clockwise?
Look closely. You’ll initially see her on her left foot spinning clockwise, or on her right foot spinning counter-clockwise. Look again. Try to mentally change the direction. Ride that line and see if you can control what you see. If you find it difficult to reverse the direction of her spin, concentrate on switching her feet.
Upon careful observation of her shadow, you’ll see that she is in fact on her left foot, spinning clockwise. 
Source: kisrael
11 comments ↓
hmmm… i immediately see spinning on left foot, clockwise.
wow. trippy. a good way to see her “switch feet” is to watch her from the very corner of your eye. if you look really far to the right - with her image in the very corner of your eye, you might see her spin the other way!
problem is: now I can’t “make” here spin the right way again!!
wow!!
oh, and - yes - THINK that she is spinning counter-clock wise.
This should be categorized under Illusions: Expert Level
Jace,
I effin love you man. I feel like my IQ is 10 pts higher since I started looking at your blog every day…
xoxo
This is MY theory:
It’s just a shadow. You can’t really tell if the image is facing forward or backward, but since we are used to people looking at us, our first impression is that the dancer is looking at us. The dancer’s leg is moving left, stops, right, stops etc. If on the split-second your eyes saw the image, the dancer’s leg was moving left - you would think that she was spinning clockwise. If it was moving right - you would think that she was spinning counter-clockwise. From that point, your brain had already decided which direction the dancer was spinning and it would be very difficult to change your mind without looking away. It is about the exact split-second your eyes first saw the image.
How’s my theory?
@Uri: I don’t think anybody would disagree with you. The silhouette of the girl only gives us two dimensions (x- and y-axes). The third dimension, on the z-axis, is subjective.
An interesting observation posted on the Herald Sun:
If you want to change it you have to stare at the feet and I mean the the real one anf the one on the ground that is a shawdow to change it between the two but you need to consin trait I am only 11 and I can do it
I got permission dont worry
how cooool is this i love this test its spookyyyyyyyyy!
Actually, you can switch the direction you perceive the shadow to be spinning in as well. Try to see her spin in the opposite direction of her shadow - that’s my favourite.
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