Learn about telescopes, how they work & why they're important to astronomers.
Reflection & Refraction
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Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.
Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.
Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.
How does the human eye see visible light as colour? And why do some people see more colours than others?