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Crash Course Astronomy - Season 1 Episode 24
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.
- वर्ष: 2015
- देश:
- शैली: Documentary
- स्टुडिओ: YouTube
- कीवर्ड: astronomy
- संचालक:
- कास्ट: Phil Plait