Crash Course Astronomy Season 1 Episode 24 Light 2015
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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.
- Released: 2015-07-09
- Runtime: 12 minutes
- Genre: Documentary
- Stars: Phil Plait
- Director: Phil Plait
