Rainbow Rays, waves of Sun Shock, and portraits that change right before your eyes: these wildly colorful and kid-friendly optical twisters are absolutely amazing. Featuring street scenes, animal illusions, and abstract images that pulse and spin, they'll fascinate children (and adults) for hours. Simple explanations reveal just a little about how the magic works.Rainbow Rays, waves of Sun Shock, and portraits that change right before your eyes: these wildly colorful and kid-friendly optical twisters are absolutely amazing. Featuring street scenes, animal illusions, and abstract images that pulse and spin, they'll fascinate children (and adults) for hours. Simple explanations reveal just a little about how the magic works.
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