![portrait par Olivia Ivany](/sites/default/files/styles/career_image/public/2023-04/Olivia%20Ivany.jpg?itok=kIaJNNW2)
Olivia Ivany
Career Profiles
Diagnostic Medical Sonographer
Michel Leger (he/him/they)
Career Profiles
Hydrographer
![SIlhouette of a figure examining stars with a telescope](/sites/default/files/2023-01/physics%20chapter%20header.jpg)
How could you build a refracting telescope using water as the lenses?
Hands-on Activities
Build your own refracting telescope using glasses of water as the lenses.
![Lunar lander floating above the moon, with the Earth in the background](/sites/default/files/styles/resource_card_image_360x300_/public/2022-08/Untitled%20design%20%2812%29.png?itok=tAd3Suzb)
Let's Talk Space Exploration Resources
Backgrounders
Discover a set of resources to develop background knowledge on the topic of space exploration.
![Ashley Noseworthy avec l'océan derrière elle](/sites/default/files/styles/career_image/public/2022-01/Ashley%20Noseworthy.jpg?itok=EBHwYaZD)
Ashley Noseworthy
Career Profiles
CEO/Founder of Edgewise Environmental
![Xiaoyi Bao](/sites/default/files/styles/career_image/public/2022-01/Xiaoyi%20Bao.jpg?itok=Qld9qH62)
Xiaoyi Bao
Professor and Canada Research Chair
![Cuvier's beaked whales](/sites/default/files/styles/resource_card_image_360x300_/public/2022-02/Beaked_Whales_Main.png?itok=2TdHGmsC)
Are Whales Beaching Themselves Stressed By Sonar?
STEM Explained
Read about why sonar could be causing some whales to beach themselves.
![Light bulb and cord in shape of a head](/sites/default/files/styles/resource_card_image_360x300_/public/2020-11/light_bulb_head.jpg?itok=TahEJFB8)
Light and Sound Inventions that Changed the World
Lessons
Students will explore the societal impacts of inventions involving light and sound.
![The Jodrell Bank Lovell Telescope located in Cheshire, England](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/Jodrell_Bank_Lovell_Telescope.jpg?itok=TFL_abQu)
Telescopes and Astronomy
Backgrounders
Visible light is only part of what astronomers study. They use different types of telescopes to study the entire electromagnetic spectrum.
![Skyglow from a city and highway](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/night_sky_and_highway.jpg?itok=5QVvQWHE)
Light Pollution
STEM Explained
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.
![Amy King dans un studio d'enregistrement](/sites/default/files/styles/career_image/public/2020-04/Amy%20King.jpg?itok=gT1IjzDr)
Amy King
Music Producer / Recording Engineer
![Casting hot iron](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/casting_hot_iron.jpg?itok=mE6eP_bv)
What Causes Hot Things to Glow?
STEM Explained
Getting electrons excited by heat can cause certain materials to give off visible light when heated - like filaments in light bulbs.
![Hubble Space Telescope as seen during a servicing mission in 2009](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/hubble_space_telescope.jpg?itok=eNoDBFx5)
Airborne & Space Telescopes
Backgrounders
Learn about telescopes that do their work high in Earth’s atmosphere and in space.
![Abstract light pattern](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/abstract_light.jpg?itok=MKGdyhIT)
Light and Its Properties
Backgrounders
Learn about light and its properties.
![Large diamond refracting light](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/big-round-cut-diamond.jpg?itok=KF0PkwqM)
Reflection and Refraction
Backgrounders
Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.