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Powerful Illusions - Magic tricks for the mind

Stereograms and illusions that trick the mind

The following image believe it or not is not actually moving. It is a simple alternation between two contrasts, an inverted or negetive contrast against the standard imagery. This illusion provides a dizzing feeling of movement. Certainly a magic trick of the mind.

I have another example of this contrasting negetive type illusion to share using this same technique.

Warning Arachnophobes (Spider haters) should not scroll down.

This next illusion is also not moving, but the areas around this image not in focus appear to move in an unusual wave like motion. This illusion isn't as hard on the eyes as the two prevoius images.

This next one works best when you scroll up and down using your mouse. The center seems to have a squarish type shape hovering above a base, connected if by a spring. When in actualality it is just another optical illusion of depth. Notice if you nod your head in a broad "Yes" movement you can get the same effect. But if you shake your head "No" not much happens. This has to do with the alighment of the shapes involved.

Stereograms

From the early 1990's and throughout the decade a popular new illusion started appearing in shopping malls throughout the world. They were called Stereogram's. The humor behind a stereogram is you would often find people staring at these images for 30 minutes pr longer saying "I just can't see it". Other people would walk up and see the image inside the image almost immeadiately. Which of course would frustrate the person standing there for longer periods, not seeing anything.They eventually lost there popularity and are pretty tough to find these days. I have collected a few to show you.

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