Cycles in the Sky: Crash Course Astronomy #3

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://en.wikipedia.org/wiki/Libra_(constellation)#mediaviewer/File:Sidney_Hall_-_Urania%27s_Mirror_-_Libra.jpg
http://en.wikipedia.org/wiki/Virgo_(constellation)#mediaviewer/File:Sidney_Hall_-_Urania%27s_Mirror_-_Virgo.jpg
http://commons.wikimedia.org/wiki/File:Leo_Hevelius.jpg
http://en.wikipedia.org/wiki/Cancer_(constellation)#mediaviewer/File:Sidney_Hall_-_Urania%27s_Mirror_-_Cancer.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://www.slate.com/content/dam/slate/blogs/bad_astronomy/2013/04/28/earth_elliptical_orbit.jpg.CROP.original-original.jpg
http://en.wikipedia.org/wiki/Pole_star#mediaviewer/File:Precession_N.gif

Następny odcinek

S04E06 - The Bicameral Congress: Crash Course Government and Politics #2