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25 must-see optical illusions that will blow your mindIf you want to have a go at creating your own illusion, take a look at our guide on how to download Photoshop so you have the tools to make your op art or check ... illusion, a ball that appears ...
An curved arrow pointing right. Kevin Parry created a simple, yet maddening optical illusion: he made it look like he was playing catch with himself. He wouldn't reveal how he pulled this off ...
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