Tuesday, January 1, 2019

Shake Your Head to Make an Image Appear


If you shake your head, an image should appear out of this illusion.
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via: BoingBoing

7 comments:

  1. I did not shake my head yet I beheld it.

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  2. Optical illusions are fun, thanks for sharing! My laptop has a rather imperfect display where its contrast varies dramatically with viewing angle. I can see the image by peering off-axis.

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  3. It doesn't work very well on mobile but I can perceive the image just by unfocusing a bit.

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  4. Thanks, Bob. That worked for me. When I try unfocusing, something else strange happens...the grid seems to take on a 3-D effect and advance towards me.

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  5. This comment has been removed by the author.

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  6. I’ve known people (my son-in-law) for whom the experience of having a cat appear as they shake their heads pretty well describes the situation, though the sequence may have been first the cat, then the head shake.

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  7. Have to admit, saw cat first. Head shake didn't affect perception.

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