2015-01-29
[public] 1.32M views, 25.5K likes, 211 dislikes audio only
This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
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Chapters:
Introduction 00:00
Cycles in the Sky 0:42
The Zodiac 2:10
Planetary Movement 2:59
The Earth's Axis 3:36
Precession 6:09
Things We've Learned From Naked Eye Observations 7:09
Review 8:40
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PHOTOS
http://en.wikipedia.org/wiki/Right_ascension#mediaviewer/File:Stars_and_ra.png
http://en.wikipedia.org/wiki/File:Ecliptic_path.jpg
http://commons.wikimedia.org/wiki/File:Sagittarius_Hevelius.jpg
http://en.wikipedia.org/wiki/Scorpius#mediaviewer/File:Sidney_Hall_-_Urania%27s_Mirror_-_Scorpio.jpg
http://commons.wikimedia.org/wiki/File:Leo_Hevelius.jpg
http://en.wikipedia.org/wiki/Globe#mediaviewer/File:GEO_Globe.jpg
http://sailornanny.weebly.com/uploads/1/0/5/0/10509307/4835516_orig.gif
http://en.wikipedia.org/wiki/Pole_star#mediaviewer/File:Precession_N.gif