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Carl Sagan Explains the Drake Equation

2007-06-07 765 Dailymotion

<a class="link" rel="nofollow" href="http://www.FreeScienceLectures.com">http://www.FreeScienceLectures.com</a> The most famous American astronomer and astrophysicist Carl Sagan explains the Drake equation.<br /><br />The Drake equation (rarely also called the Green Bank equation or the Sagan equation) is a famous result in the speculative fields of xenobiology, astrosociobiology and the search for extraterrestrial intelligence.<br /><br />The Drake equation states that:<br />N = R*

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