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The Spiral Tornado Illusion

The Spiral Tornado Illusion

The Spiral Tornado Illusion — Look at this spinning tornado for a few minutes and then look away at a strong pattern. Watch the pattern twirl and buzz! This is known as the spiral aftereffect.

Also, check out this larger version. It also works very effectively.

The Spiral Tornado Illusion

by

John Kremer is the author of 1001 Ways to Market Your Books and webmaster at the BookMarketingBestsellers and BookMarket.com websites.

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