We use cookies on this website. Read our cookies policy

Optical Illusions

The picture doesn't move. But it looks like it does.

Why is it moving?

Illusions such as these fit into the “illusory motion” class. This means that elements of the picture appear to be moving when they are in fact completely still. It is believed that this is caused by tiny movements and vibrations of the eye which sends confusing information to the brain. The brain tries to make sense of this information and in the case of these illusions, interprets them as movement.

Try staring hard at a specific point of colour- notice how the image stops moving!

How to warp your mind

Here's a video from Inside Science on how optical illusions work.

Exhibits like this

Nearby exhibits

Look Closer

Welcome to Look Closer, Techniquest's brand new digital tool. We're trialling Look Closer as a way of offering you a closer look at the science demonstrated by many of our exhibits. You'll find visitor sheets, videos, articles on contemporary science as well as fun trails to navigate your way around the exhibition space.

Speak to our Science Communicators to find out more.