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UFO Proliferation

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    #21
    Originally posted by Churchill View Post
    Guilt is for permies...

    I'll have a copy please.

    PM Sent.
    Can you tell us the conclusions then?

    Comment


      #22
      Originally posted by Board Game Geek View Post
      Either they are coming out, during a turbulent time to try and avert an Armageddon type disaster (CERN ?) , they may be planning on launching an Armageddon type disaster, or they may be planning Official Contact.

      Or it's all a load of doo-doo.

      We live in interesting times, eh ?

      As an aside, I do believe in other life in the known universe. It's statistically impossible for there not to be life.
      However, as an astronomer, I am well aware of the vast distances between constellations and other solar systems, and I cannot forsee any alien technology having the capability to travel the colossal distances required in space.

      Put it another way, Abell 1835 IR1916, is a galaxy that has a redshift of 10 and is located about 13,230 million light-years away. It is therefore seen at a time when the Universe was merely 470 million years young, that is, barely 3 percent of its current age.

      Let's suppose a civilisation within this galaxy could travel space at the speed of light. That is still 13,230 million years transit time, just to get here. Completely unrealistic.

      You'd need to travel at many multiples of the speed of light to get anywhere in a meaningful amount of time. I mean, literally millions of times the speed of light.

      Considering the fact that nothing with mass can travel at the speed of light, let alone beyond it, there is little hope for anything travelling at millions the speed of light.

      I worked out using current technology that to travel to our closest star system (Alpha Centauri , 4.34 ly away) it would still take about 32,000 years.

      As much as I like sci-fi, you've got to be pragmatic and realise that the laws of physics, much like the computer on Little Britain, say "No".
      Have you had many long lonely boring hours by the telescope?
      "Condoms should come with a free pack of earplugs."

      Comment


        #23
        Originally posted by Diver View Post
        It's swamp gas
        I apologize for farting
        "Condoms should come with a free pack of earplugs."

        Comment


          #24
          Originally posted by ThomasSoerensen View Post
          I apologize for farting
          You should only apologize if you mean it.

          Comment


            #25
            Originally posted by BrilloPad View Post
            You should only apologize if you mean it.
            He did mean to fart
            Confusion is a natural state of being

            Comment


              #26
              Originally posted by TimberWolf View Post
              We may be one of the first though? Since as you note life arose quickly on Earth - about as quickly as is possible. For example to obtain the elements required for our type of life, the Universe had to be as old as it was (needed a Super Nova to form carbon atoms etc, and our solar system to be formed from these remnants).
              The requisite materials (heavy elements) where already in existence 5 billion years or more before the creation of the solar system.
              It's all on Wiki

              "Finally, objects on the scale of our solar system form. Our sun is a late-generation star, incorporating the debris from many generations of earlier stars, and formed roughly 5 billion years ago, or roughly 8 to 9 billion years after the big bang."
              Bored.

              Comment


                #27
                Originally Posted by TimberWolf View Post
                We may be one of the first though? Since as you note life arose quickly on Earth - about as quickly as is possible. For example to obtain the elements required for our type of life, the Universe had to be as old as it was (needed a Super Nova to form carbon atoms etc, and our solar system to be formed from these remnants).
                Yep! thats the human race alright!

                Remnants
                Confusion is a natural state of being

                Comment


                  #28
                  Originally posted by ace00 View Post
                  The requisite materials (heavy elements) where already in existence 5 billion years or more before the creation of the solar system.
                  It's all on Wiki
                  That's the point - heavy elements need have to have been created at least 5 billion years ago since our solar system didn't create them. Prior to that there must have been at least one Super Nova event with its whole life cycle before that. The Universe is only 15 billions years old and our Sun is good for perhaps 10 billion years. Granted bigger Suns go Super Nova earlier (or not at all). But you also need time for galaxy formation (a violent event?) and to create the first Suns. 15 billion years is nothing

                  I'm not sure how well the whole thing is understood, if there is a link to the best theories on this maybe we could decide rather than relying on a paradox of a genius of 50 years back, when things were barely understood. Things may have moved on since Fermi!

                  Comment


                    #29
                    Originally posted by TimberWolf View Post
                    That's the point - heavy elements need have to have been created at least 5 billion years ago since our solar system didn't create them. Prior to that there must have been at least one Super Nova event with its whole life cycle before that. The Universe is only 15 billions years old and our Sun is good for perhaps 10 billion years. Granted bigger Suns go Super Nova earlier (or not at all). But you also need time for galaxy formation (a violent event?) and to create the first Suns. 15 billion years is nothing

                    I'm not sure how well the whole thing is understood, if there is a link to the best theories on this maybe we could decide rather than relying on a paradox of a genius of 50 years back, when things were barely understood. Things may have moved on since Fermi!
                    We were all created by a supreme being. Ask NickyG
                    Confusion is a natural state of being

                    Comment


                      #30
                      Originally posted by Diver View Post
                      We were all created by a supreme being. Ask NickyG
                      Absolutely!

                      TGAOTU!
                      or
                      TGGOTU!

                      Which I hasten to add has **** all to do with goats!

                      Comment

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