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Datahopa
Heavens Above => Astronomy & Near Earth Phenomena => Topic started by: DD1975 on June 18, 2013, 23:01:12 PM
Title:
Black Holes
Post by:
DD1975
on
June 18, 2013, 23:01:12 PM
Found this on Youtube:
The Ultimate Guide to Black Holes (http://www.youtube.com/watch?v=VF1Ql0a-Lxs#ws)
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