Thermal Imaging
Backgrounders
Learn about uses of thermal imaging as a medical imaging technology.
Radiography & X-ray Imaging
Backgrounders
Learn about radiography and x-rays as a form of medical imaging technology.
Ophthalmic Imaging
Backgrounders
Learn about the history, function, uses, benefits and risks of ophthalmic imaging as a medical imaging technology.
Magnetic Resonance Imaging
Backgrounders
Learn about the history, function, uses, benefits and risks of Magnetic Resonance Imaging (MRI) as a medical imaging technology.
Computed Tomography
Backgrounders
Learn about the history, function, uses, benefits and risks of computed tomography (CT) as a medical imaging technology.
Roger Bragg
Career Profiles
Construction Electrician
Linda Kaleis
Lead Data Scientist
Dino Pulerà
Scientific and Medical Illustrator, Art Director
The Optics of Telescopes
Backgrounders
Learn about telescopes, how they work & why they're important to astronomers.
Why is everything so small down there?
Hands-on Activities
Explore how we see things far and near and from different angles. It's all about perspective!
What's in a Rainbow?
STEM Explained
Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.
What are the Different Types of Radiation?
Backgrounders
Learn about the different types of radiation, how they interact with atoms and how they can affect you.
What do magnets do?
Hands-on Activities
Have fun discovering what magnets can pick up in this hands on activity.
What If You Could Charge Your Phone Using Radio Waves?
STEM Explained
Could we use radio waves to charge electrical technologies in the future?
Thermopower and the Body Heat-Powered Flashlight
STEM Explained
Can your body be a source of electricity generation? Maybe, if you understand heat transfer. Explore this concept through a 2013 invention by a Canadian teen.