Grid Illusion

A grid illusion is any kind of grid that deceives a person's vision. The two most common types of grid illusions are the Hermann grid illusion and the scintillating grid illusion.

Read more about Grid Illusion:  Hermann Grid Illusion, Scintillating Grid Illusion, Differences Between The Scintillating and Hermann Grid Illusions, Theories

Famous quotes containing the word illusion:

    Pilate with his question “What is truth?” is gladly trotted out these days as an advocate of Christ, so as to arouse the suspicion that everything known and knowable is an illusion and to erect the cross upon that gruesome background of the impossibility of knowledge.
    Friedrich Nietzsche (1844–1900)