Seeing Around Corners

A large red and blue cube frame that has orange and blue information panels hanging from top to bottom. Inbetween these panels are blue and orange trianguular and square objects.

Mirrors reflect light and allow a viewer to see things 'around a corner'.

How it works

Look into each periscope and see if you can recognise what you're seeing and where it's located.

Things to try or ask around the exhibit

Can you see the top of your head, or into your own ear? Try using this periscope!


When light bounces off something and into our eyes, our brain ‘sees’ the thing. Inside the periscope tube, mirrors are set up at special angles, so that light entering the tube bounces up through the tube to your eyes.

Finding the science in your world

Periscopes help us see around corners and over things (like a crowd of people). Submarine telescopes allow sailors to see above the water while the submarine is underwater.