The Impossible Trident Illusion
Look closely: The three prongs miraculously transform into two at the end of the fork. The more you look at it, the more improbable it becomes. How does this happen?
Often said to have made its debut on the cover of the March 1965 issue of “Mad Magazine” as original graphic art, Impossible trident is also known as the Devil’s Fork, Impossible Fork, or a blivet. The lines are joined at the end to create the illusion of a prong. And because our minds tend to reconstruct 3D imagery out of the flat 2D image, it creates the illusion of depth.
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