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Description Presented here is a vast gallery of many different forms of Optical Illusions. Whether these optical illusions are conveyed through fractals, photographs, architecture, art, or old fashioned pen and ink, they are bound to remind you that "seeing is not believing."

Caution!!!! Some of the optical illusions on this blog may cause dizziness or possibly epileptic seizures. The latter happens when the brain can't handle the conflicting information from your two eyes. If you start feeling unwell when using this website, immediately cover one eye with your hand and then leave the page. Do not close your eyes because that can make the attack worse.
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Illusion Knitting

Apparently there is a style of knitting that knits illusions into a sweater or scarf. If viewed from one angle you see one pattern, if viewed from another angle you see something different. Over at Heidi's Knitting Room I found the below.

ILLUSION KNITTING - ... It results in a fabric that has vertical stripes and as you turn it sideways, the pattern that you have knitted in will appear while the stripes seem to disappear - until you turn it again!

When you look at the sweater from the front, you see red and white vertical stripes and a shadow of what appear to be white hearts, but as you turn it sideways, you'll see a solid white background with red hearts. It's really amazing, I had never seen this before! Here is how it works:


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