Tease your brain with the Hermann Grid illusion

Here’s a beau­ti­ful exam­ple of the Her­mann Grid illu­sion in the real-world: You will notice faint white cir­cles appear where the hor­i­zon­tal and ver­ti­cal slats inter­sect in the win­dow frame (even if no white cir­cles are there at all!) Her­mann fer­ry port door grid illu­sion :) (?stan­bul) pic.twitter.com/SrnZup6UJ9 — Aysun Ülger (@aysun_ulger) Sep­tem­ber 3, 2019 The Her­mann Grid…

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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? 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…

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