SubscribeDr. Richard Gregory first observed this illusion’s effects at a cafe wall in Bristol, where the tiles were arranged in a chessboard-like pattern.
Other cool optical illusions posted earlier on the site:
- 3d color optical illusion by MIT professor
- Wavy coffee beans
- Spinning pinwheels
- a crooked square
- the amazing work of Felice Velini
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all the lines are parallel to each other