Views: 545099 | Rating: 4.96 | Likes: 10586
Light: Crash Course Astronomy #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.
Crash Course Chemistry posters are available at DFTBA.com
—
Table of Contents
Light is a Form of Energy 0:39
Wavelength Tells Us Its Energy and Color 0:59
Spectroscopy 7:28
—
PBS Digital Studios:
Follow Phil on Twitter:
Want to find Crash Course elsewhere on the internet?
Facebook –
Twitter –
Tumblr –
Support CrashCourse on Patreon:
—
PHOTOS/VIDEOS
Wavelengths [credit: Imagine the Universe! / NASA]
Observatories across spectrum [credit: Imagine the Universe! / NASA]
Red hot spiral hotplate [credit: freefoodphotos.com]
The Crab Nebula [credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)]
Building the Space Telescope Imaging Spectograph [credit: NASA]
VST images the Lagoon Nebula [credit: ESO/VPHAS+ team]
Jupiter [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Venus [credit: NASA – NSSDC Photo Gallery Venus]
Ring Around SN 1987a, image 1 [credit: Jason Pun (NOAO) and SINS Collaboration]
Ring Around SN 1987a, image 2 [credit: George Sonneborn (GSFC) and NASA/ESA]