Waves, Sound, Light

Visible light is only part of what astronomers study. They use different types of telescopes to study the entire electromagnetic spectrum.

Light can be a type of pollution. Learn about the damage it causes to people and living things as well as how you can prevent it.

Learn about light and its properties.

Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.

Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.

Learn about the history, function, uses, benefits and risks of Ultrasonography as a medical imaging technology.

Learn about uses of thermal imaging as a medical imaging technology.

Learn about radiography and x-rays as a form of medical imaging technology.

Learn about telescopes, how they work & why they're important to astronomers.

Take a walk after dark to find shadows.

Ever wondered why we have two eyes (and not one, three or more)? Find how your two eyes work together in this hands-on activity.

Explore how we see things far and near and from different angles. It's all about perspective!

Learn how sound travels in waves and how it is measured in this backgrounder.

Find out what happens if you spin the colours of the rainbow in this hands-on activity.

Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.