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What do you see: Quick brain teaser to share this weekend

What do you see?

Ambiguous Illusion

Take a good look…you should be able to per­ceive two dif­fer­ent images (but prob­a­bly not at the same time). Read the rest of this entry »

The Hermann grid optical illusion, explained

In this image, do you see some­thing oth­er than black and white? Does it mat­ter if you look direct­ly at one of the black blocks, vs. at one of the inter­sec­tions?

Hermann Grid

While there are real­ly only black blocks and white spaces in the grid, the high con­trast black and white areas fool the eyes into per­ceiv­ing a gray cir­cle at each inter­sec­tion. The illu­sion results from Read the rest of this entry »

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