When it's spinning smoothly, stare at the center of the spiral for about a minute.
Then look at the back of your hand...
It will appear to be twitching and moving, as though bugs were crawling under your skin!
~Source
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Showing posts with label Moving Optical Illusion. Show all posts
Showing posts with label Moving Optical Illusion. Show all posts
Monday, June 27, 2011
Crawling Spiral Optical Illusion
When it's spinning smoothly, stare at the center of the spiral for about a minute.
Then look at the back of your hand...
It will appear to be twitching and moving, as though bugs were crawling under your skin!
~Source
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