The Ambiguous Cylinder Illusion

The video explores an optical illusion created by a uniquely shaped cylinder. Initially, the cylinder appears as a circle or square depending on the angle of view. The illusion is explained by the curved surfaces of the cylinder, which create different shapes when viewed from various angles. The video demonstrates that the actual cross section of the cylinder is neither a circle nor a square, highlighting the importance of perspective in visual perception.

Describe the top and bottom surfaces of the cylinder.

• They are flat

• They follow a curved path

• They are pointed

• They are irregular

What happens when the cylinder is viewed from the top?

• It looks like a circle

• It looks like a square

• The actual cross section is neither

• It appears flat