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http://www.eso.org/outreach/eduoff/e...denmark_m31_1/
about 25 trillion (I have dispatched a probe to perform an accurate count. I suggest we lock this thread until the probe reports back in approximately 3 billion of your years) Given the historical estimates for parameters to the Drake Equation found on this page: http://www.answers.com/topic/drake-equation How many technological civilizations are in Andromeda? Edit to add: My point in asking this question was that, I think it should be possible to multiply the rate of star formation in our galaxy by the ratio of stars in our galaxy to stars in Andromeda. That would be the only term you'd need to change to use the equation on another galaxy (I think). If that isn't a valid assumption then I retract the question and somebody else can have a go. |
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Well, using the initial parameters gives a value of one for the Milky Way. Since the Andromeda galaxy appear to have about 62.5 times as many stars (lower estimate), and if you assume a rate of star formation proportional to the existing number of stars, then you would have to scale up the R term to 625 stars/year. This would increase the number to 62.5.
How is the value of one AMU defined? (trick question)
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I met this wonderful girl at Macy's. She was buying clothes and I was putting Slinkies on the escalator. -Steven Wright My Website: The Black Cat's Web Page |
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Because humans cultivate the nice smelling ones. There are lots of no smell or bad smelling wild ones (the ones that smell bad usually have flies for pollenators.
Why do we need so many silly games on BABBling?
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At night the stars put on a show for free (Carole King) |
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Because it's fun.
Why does everyone ask hard questions?
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I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those … moments will be lost … in time … like tears … in rain. Time … to die. |
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| The Mangler |
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This message has been deleted by The Mangler.
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March 14, 1879
Who is your favorite artist?
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I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those … moments will be lost … in time … like tears … in rain. Time … to die. |
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Because it doesn't matter that the largest rocket engine ever
is the Space Shuttle solid rocket motor. (That was a question and answer in a Space trivia quiz I wrote in the 1980's.) Am I in the right place? (I asked Buzz Aldrin that question when he and I were alone together in a room in the US Space and Rocket Center in Huntsville, Alabama. Aldrin's specialty in his graduate work in college, and in the Gemini and Apollo programs at NASA, was navigation. That is, determining where you are and which way you should go. He said "Yes." I wasn't in the right place, though.) -- Jeff, in Minneapolis
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http://www.FreeMars.org/jeff/ "The other planets? Well, they just happen to be there, but the point of rockets is to explore them!" -- Kai Yeves |
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Yes, because someone teached me that a long time ago. I like traditions.
You never can tell if you are in the right place. Can you?
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Not because it is easy, but because it is hard... There is no way to happiness, happiness is the way. |