Illusions

Various visual illusions are presented to surprise your visual perception skills.

How it works

Look at each visual illusion and compare what you see with what a friend sees in the illusion.

Background

Studying how the brain interprets optical illusions (perception) can give scientists insight into how the brain's visual system works.

Finding the science in your world

Some marketing and advertising companies take advantage of size illusions to make a product appear smaller or larger (depending on the advantage required).

Magicians also utilise visual illusions to create effects of depth and size. Even landscape gardeners sometimes use visual illusions to create the effect of a larger space within a small courtyard.