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Texas A&M University

Image Illusions

Our senses cannot always be trusted.
Our mind is the final arbiter of truth.

Perpetually ascending staircase. How can the man go up all the time and come back to the same place over and over?

X illusion
The red squares are the same color in the upper part and in the lower part of the "X"

parallel lines illusion
The diagonal lines are parallel.

squares illusion
There are no gray spots at the corners of the squares.

row illusion
The rows of black and white squares are all parallel.

circle center illusion
The center circles are both the same size.

intersection illusion
There are only white circles at the intersections

wavy square illusion
Wavy Squares? No! The background of concentric circles makes the squares appear distorted.

rotating wheels illusion
Rotating Wheels The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center.

warped squares illusion
Warped Square? There are no curved lines in this figure.