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Crash Course Astronomy | Light: Crash Course Astronomy #24 | Episode 24 | PBS

By Owner - Crash Course Astronomy - Powered By PBSFrom pbs.org
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In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object's temperature, density, spin, motion, and chemical composition.

Tags

Wavelength
Photon
Spectrum
Energy
Color
Frequency
Visible
Speed
Electromagnetic
Wave

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