ahlam1399
09-25-2014, 05:47 AM
http://i.ytimg.com/vi/Fi30zjQhtWY/default.jpg (http://www.youtube.com/watch?v=Fi30zjQhtWY&feature=youtube_gdata)
Exploring the Universe: Crash Course Big History #2 (http://www.youtube.com/watch?v=Fi30zjQhtWY&feature=youtube_gdata)
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen...
From:CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views:301
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
1555ratings
Time:14:37More inEducation (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=Fi30zjQhtWY&feature=youtube_gdata)
Exploring the Universe: Crash Course Big History #2 (http://www.youtube.com/watch?v=Fi30zjQhtWY&feature=youtube_gdata)
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen...
From:CrashCourse (http://www.youtube.com/channel/UCX6b17PVsYBQ0ip5gyeme-Q)
Views:301
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
1555ratings
Time:14:37More inEducation (http://www.youtube.com/videos?c=27)
أكثر... (http://www.youtube.com/watch?v=Fi30zjQhtWY&feature=youtube_gdata)