ahlam1399
01-16-2015, 01:16 PM
http://i.ytimg.com/vi/0rHUDWjR5gg/default.jpg (http://www.youtube.com/watch?v=0rHUDWjR5gg&feature=youtube_gdata)
Introduction to Astro**my: Crash Course Astro**my #1 (http://www.youtube.com/watch?v=0rHUDWjR5gg&feature=youtube_gdata)
Welcome to the first episode of Crash Course Astro**my. Your host for this intergalactic adventure is the Bad Astro**mer himself, Phil Plait. We begin with answering a question: "What is astro**my?...
From: CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views: 62206
http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_half_11x11.gif
6384 ratings
Time: 12:12 More in Education (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=0rHUDWjR5gg&feature=youtube_gdata)
Introduction to Astro**my: Crash Course Astro**my #1 (http://www.youtube.com/watch?v=0rHUDWjR5gg&feature=youtube_gdata)
Welcome to the first episode of Crash Course Astro**my. Your host for this intergalactic adventure is the Bad Astro**mer himself, Phil Plait. We begin with answering a question: "What is astro**my?...
From: CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views: 62206
http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_full_11x11.gif http://gdata.youtube.com/static/images/icn_star_half_11x11.gif
6384 ratings
Time: 12:12 More in Education (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=0rHUDWjR5gg&feature=youtube_gdata)