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46 ភាគ
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.
- ឆ្នាំ: 2015
- ប្រទេស:
- ប្រភេទ: Documentary
- ស្ទូឌីយោ: YouTube
- ពាក្យគន្លឹះ: astronomy
- នាយក:
- ខាស: Phil Plait