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List of optical illusions - Wikipedia
The Fraser spiral illusion, or false spiral, or the twisted cord illusion, was first described by the British psychologist Sir James Fraser in 1908. The overlapping black arc segments appear to form a spiral; however, the arcs are a series of concentric circles. See more
This is a list of visual illusions. See more
• Optical Illusion Examples by Great Optical Illusions
• Optical Illusions & Visual Phenomena by Michael Bach
• See moreWikipedia text under CC-BY-SA license Visual Phenomena & Optical Illusions - Michael Bach
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Fraser spiral illusion - Wikipedia
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WEBAug 8, 2011 · Optical illusions harness the shift between what your eyes see and your brain perceives. Here are some great ones, with explanations.
Color Illusions - Mental Bomb
Fraser's Spiral -- from Wolfram MathWorld
WEB2 days ago · The illusion is also known as the false spiral, or by its original name, the twisted cord illusion. While the image appears to be a spiral formed by a rope containing twisted strands of two different colors, it …
Optical Illusions - Free Picture Illusions
Headache-Inducing Spiral Illusion Explained | Live …
WEBSep 11, 2012 · Scientists explain a notorious optical illusion that confuses the brain into thinking circles are spirals.
This optical illusion tricks you into seeing different …
WEBMay 19, 2021 · By tampering with both the lightness and the color of the foreground stripes, you can "amplify" the apparent color change, causing the background shapes to look wildly different from their true...
Optical illusion - Wikipedia
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Optical illusion: The blue and the green. - Slate Magazine
12 fascinating optical illusions show how color can trick the eye
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This Optical Illusion Tricks Your Brain Into Adding Color to a …
Can you tell how many colours are in this spiral optical illusion?
Another brain-frying optical illusion: What color are these …
Insane optical illusions that will make you wonder if you're ... - MSN
Baffling optical illusion challenges our perception of color
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