School of Physics Lecture Demonstration Manual

Ok-1 Optical Illusions

Published: Wednesday 15 March 2006 - Updated: Monday 28 March 2011

Aim

To demonstrate an optical illusion that depends upon retention of image for its effect.

Apparatus

Diagrams

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Optical Illusion

Optical Illusions Diagram

Videos

Optical Illusion

Description

The optical illusion comprises two rings tilted with respect to each other and joined at a common point. When the rings are placed upon the turntable and given a modest rotation speed it appears that the rings are in rotation with respect to each other.

Safety notes

Maintenance

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