NATS 1880 Lecture Notes - Lecture 18: Encephalization, Interstellar Medium, Signal 1
27 Aug 2015
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The drake equation is such a tool by those engaged in seti. Work through a couple of examples showing how one can use probability to estimate useful numbers. It is expected that about 1/12 of students enrolled in nats 1880 would be born in each month of the year (though ) So expect 1/12 + 1/12 or 1/6 of students would be born in january or july. Developed 1961 at conference to estimate how many radio signals we could potentially expect. Limit the discussion to the milky way, our own galaxy. Number of civilizations capable of interstellar communication (n) = Number of habitable planets in our galaxy on which life can evolve (nhp) x. Fraction of habitable planets in our galaxy which have life (flife) x. Fraction of life bearing planets on which a civ capable of interstellar communication has arisen at some time (fciv) x.
