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  • #61
    Originally posted by Urban Ranger


    IIRC, Jupiter is just a bit below the mass of a brown dwarf.


    This gives the lowest mass of stars as 0.08 solar masses

    Jupiter is about 0.001 solar masses

    So 80X
    12-17-10 Mohamed Bouazizi NEVER FORGET
    Stadtluft Macht Frei
    Killing it is the new killing it
    Ultima Ratio Regum

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    • #62
      Originally posted by Urban Ranger
      Sure, if you achieve 0K, you get superconductivity. However, to get superconductivity, you don't need to get to 0K, just sufficiently low temperatures will do.
      this is true. it is regarded by many as the holy grail of science to discover a "room temperature' super conducter. The application of which would truely be revolutionary.

      IIRC, there have been some ceramic senthysized that can maintain superconductivity at temeratures as high as -60 celsius, or somethn like that... pretty amazing, when you think about it
      "I bet Ikarus eats his own spunk..."
      - BLACKENED from America's Army: Operations
      Kramerman - Creator and Author of The Epic Tale of Navalon in the Civ III Stories Forum

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      • #63
        Originally posted by Frogger
        It had enough mass to provide a sufficiently dense environment. The original "spark" would be impossible to determine.
        The initial spark that started the fusion process in the sun was the gravitational collapse of the gas that formed it. After igniting the reaction the pressure of the radiation generated by the fusion balanced the gravitational forces and a stable equilibrium emerged.

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        • #64
          That wasn't a spark; that was a long, slow heating process.

          The initial fire started burning well before the average energy was sufficient to ignite hydrogen burning.
          12-17-10 Mohamed Bouazizi NEVER FORGET
          Stadtluft Macht Frei
          Killing it is the new killing it
          Ultima Ratio Regum

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          • #65
            Originally posted by Frogger
            That wasn't a spark; that was a long, slow heating process.
            Thinking in astronimical time scales it was a spark.

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            • #66
              Originally posted by Frogger
              The initial fire started burning well before the average energy was sufficient to ignite hydrogen burning.
              If the hydrogen hadn't started burning, what would be the fuel for this fire?
              (\__/) 07/07/1937 - Never forget
              (='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
              (")_(") "Starting the fire from within."

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              • #67
                Re: Re: Future/near Future technologies

                Originally posted by mrmitchell


                IIRC a quantum computer is a computer capable of creating an infinite number of parallel universes to each work on a seperate part of the problem. (To use a classical computing example, breaking an encryption with 1 processor at 2GHz is going to take ~4billion years, but with 2 only ~2bill, 4 only ~1bill, etc. The more power you have, the faster it is, and when you have infinite power, it's truly immediate.

                Hope this helps
                But can it play huge maps with 24 civs with no waits between turns
                Space is big. You just won't believe how vastly, hugely, mind- bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.
                Douglas Adams (Influential author)

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                • #68
                  Originally posted by Frogger
                  Quantum computing is a big steaming pile of crap.
                  not really.

                  just recently they used a prototype of a QC to calculate the primes of 15. simple for the beginning, but i proves that it's possible. but i reckon it will take at least 20 years for useful applications of QC

                  quanti for computing can be used in 2 ways:
                  - quantum memory: subatomar quantum particles have different so called "spins": spin 1, spin 2 and spin 1/2. the wierd thing is that for one kind of spin, the particles spins twice to reach the same state as before. source: "a brief history of time" by stephen hawkins. note: i can't remember the exact details. i read this iirc 8 years ago...
                  - quantum computing: nearly infinite parallism: see mrmitchell's post
                  - Artificial Intelligence usually beats real stupidity
                  - Atheism is a nonprophet organization.

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                  • #69
                    Originally posted by Azazel


                    I have a question that bothered me for a very long time.

                    It is a well known fact that the energy of the stars comes from nuclear fusion. It is said that when the stars condensed, the internal heat was high enough to trigger the beginning of the nuclear fusion process.

                    The trigger of Hydrogen bombs is a Fission bomb, that generates such an enviroment.

                    It is presumed that stars such as Jupiter didn't reach the needed critical mass in order to trigger the fusion reaction.

                    What would happen if humans would launch a probe with a 20 Megatonn nuke onboard. The probe would slow down using shutes, and penetrate into Jupiter, and then go off.

                    Would a new star be created?
                    even if possible, a 20 megaton nuke would never be enough. you might remember a few years ago a bead row of iirc 14 large meteors (one along would kill all life on earth) crashed onto jupiter. they were called "shoemaker/levy". each impact was a hundredfold multiple of 20 Mt.
                    - Artificial Intelligence usually beats real stupidity
                    - Atheism is a nonprophet organization.

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                    • #70
                      Originally posted by Skanky Burns
                      The 0 Kelvin state is useful as you can store energy indefinately with no loss.
                      are you sure about that?
                      0° K has no energy at all, that's why the molecules don't move (no "brown's molecular movement").

                      100% superconduction can only be achieved at absolute zero. but current superconducters (e.g. some special ceramics) have a very efficient conduction ability. losses are close to 0.
                      - Artificial Intelligence usually beats real stupidity
                      - Atheism is a nonprophet organization.

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                      • #71
                        Originally posted by sabrewolf


                        are you sure about that?
                        0° K has no energy at all, that's why the molecules don't move (no "brown's molecular movement").

                        100% superconduction can only be achieved at absolute zero. but current superconducters (e.g. some special ceramics) have a very efficient conduction ability. losses are close to 0.
                        i think he meant elecric current loss due t resistance.


                        spin 1, spin 2 and spin 1/2. the wierd thing is that for one kind of spin, the particles spins twice to reach the same state as before. source: "a brief history of time" by stephen hawkins. note: i can't remember the exact details. i read this iirc 8 years ago...
                        this is correct (im just finished reading the book like a week ago ). things of 1 spin, must rotate 360 degrees to be in the same orientation (think of this like a one headed arrow. to be able to be superimposed onitself, it must rotate completely once). things of 2 spin must rotate 180 degrees (this would be like a semetrical double headed aarow, it only has to rotate half a roation to be able to be superimposed on itself). things of 1/2 spin, like electrons, must make 2 complete rotations... this makes no sense to me...
                        "I bet Ikarus eats his own spunk..."
                        - BLACKENED from America's Army: Operations
                        Kramerman - Creator and Author of The Epic Tale of Navalon in the Civ III Stories Forum

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                        • #72
                          Saberwolf:
                          1) I've said it myself.
                          2) It is enough, under the right pressure, that is not there on Jupiter.

                          If the hydrogen hadn't started burning, what would be the fuel for this fire?
                          I'd presume that it egnited, and the went off, like in the scenario that frogger described in the previous pages.
                          urgh.NSFW

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                          • #73
                            Originally posted by Kramerman
                            things of 1/2 spin, like electrons, must make 2 complete rotations... this makes no sense to me...
                            yeah, it irritated me too... but believe me, there are a lot of things that don't make sense to me in science.

                            e.g. when my physics teacher told us that an electron has a diameter of 0 i doubted it. why?
                            an electron has a mass. no diameter means no volume. density = mass / volume --> x / 0 = infinite density ==> infinity gravity. no basicly each electron would be "heavier" than a black hole.
                            his answer: this is quantum physics, and not newtonian physics...

                            so basicly: accept it, it's too high for you anyway
                            - Artificial Intelligence usually beats real stupidity
                            - Atheism is a nonprophet organization.

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                            • #74
                              Originally posted by Sava
                              I want either a holodeck or a Matrix-style computer hookup so I can have sex with women all day.
                              i prefer the holodeck. there's a security protocol against dying and you don't need to look for a phone box to exit the world
                              - Artificial Intelligence usually beats real stupidity
                              - Atheism is a nonprophet organization.

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                              • #75
                                rhenium-molybdenum alloys superconduct at 10K
                                Gadolinium at 11 K and below


                                a crystalline tin-niobium alloy is superconductive at very
                                low temperatures. Such magnets, made of tin-niobium wire, weigh just a few pounds and produce magnetic
                                fields that are comparable to that of a 100 ton electromagnet

                                just some interesting factoids.

                                About the boson states..........

                                I was once really high and thought I had Einstein's theory figured out. It made sense at the time. basically I started the premise that all matter is moving at the speed of light squared, I am going around the earth at a phenomenal rate, the Earth is going around the sun even faster, and the sun around the center of the galaxy at a humongous rate, which is hurtling through the universe at a truly astronomical rate, perhaps even revolving around an even larger mass that we cannot even detect.... but sadly I can't quite remember what conclusion I drew next......

                                Ok, basically what I am saying is 1) I wish I could afford college...... and 2) to me, the whole spinning aspect of "light" (everything is made of "spinning" [I am aware of electron clouds, moving so fast they actually are everywhere at once, creating mass, are they perhaps moving at the speed of light, and in so many directions to be called speed of light squared?] parts) is what gives "light" or "energy" it's matter-like qualities.

                                This of course all started on the thought that gravity is just a theory, and exactly what is gravitational force.... I mean, to say it's some magical force that draws mass to itself is not a scientific statement.




                                Another question..... what is the relationship between gluons, anti-gluons, and (pinkys)

                                BTW..... I'd read all about it myself..... except I want to release my mod by the 28th, and I am working on the civilopedia at the moment.... , and still have lots of graphical work to do.
                                Pentagenesis for Civ III
                                Pentagenesis for Civ IV in progress
                                Pentagenesis Gallery

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