35-DrakeEqn2 - Astrobiology ife and Intelligence in the...

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Unformatted text preview: Astrobiology ife and Intelligence in the Universe The Drake Equation —Biological and Sociological Factors— The Question of Extra-Aquarian Intelligent Life Extraterrestrial Intelligence Sometimes I think we’re alone. Sometimes I think we’re not. In either case, the thought is staggering . Buckminster Fuller rank Drake Author of the rake Equation Drake Equation Plaque in Room Where First Proposed Drake Equation on a T-Shirt Drake Equation Calculator Drake Equation N= R* Fs N= R* Fs Fp Fp Ne Fl Ne Fl Fi Fi Fc Fc L L N = Number of Communicating Civilizations in Our Galaxy R* = Rate of Star Formation in Our Galaxy Fs= Fraction of Suitable Stars (in a Habitable Zone) Fp = Fraction of Suitable Stars That Form Planets Ne = Average Number of Habitable Planets or Moons/Solar System Fl = Fraction of Habitable Planets/Moons on Which Life Develops Fi = Fraction of Planets/Moons with Life on Which Intelligence Develops Fc = Fraction of Intelligent Life-forms That Try to Communicate (TACCs) L = Average Lifetime of TACCs Nikolai Kardashev and Kardashev Civilizations Isaac Asimov The Last Question he climactic ending of what any consider to be Isaac simov’s finest short story ombines religion, philosophy, nd science together in the last wo lines of the story. Shortly wo lines of the story....
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This note was uploaded on 11/22/2011 for the course BIOLOGY 190a taught by Professor Staff during the Fall '11 term at UMass (Amherst).

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35-DrakeEqn2 - Astrobiology ife and Intelligence in the...

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