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  1. #11
    Senior Member Mal12345's Avatar
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    Quote Originally Posted by The Outsider View Post
    According to the current data, yes it did.
    Does the current data contradict the idea of a cyclic universe?

    http://www.princeton.edu/pr/pwb/02/0...icuniverse.htm

    The theory proposes that, in each cycle, the universe refills with hot, dense matter and radiation, which begins a period of expansion and cooling like the one of the standard big bang picture. After 14 billion years, the expansion of the universe accelerates, as astronomers have recently observed. After trillions of years, the matter and radiation are almost completely dissipated and the expansion stalls. An energy field that pervades the universe then creates new matter and radiation, which restarts the cycle.

    The new theory provides possible answers to several longstanding problems with the big bang model, which has dominated the field of cosmology for decades. It addresses, for example, the nagging question of what might have triggered or come "before" the beginning of time.
    "Everyone has a plan till they get punched in the mouth." Mike Tyson
    “Culture?” says Paul McCartney. “This isn't culture. It's just a good laugh.”

  2. #12
    Senior Member The Outsider's Avatar
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    Fascinating.

  3. #13
    Senior Member Mal12345's Avatar
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    Quote Originally Posted by The Outsider View Post
    Fascinating.
    The only real objection I have to this article is "It is conceivable, he said, that a material called dark matter, which is widely believed to make up a significant part of the universe, resides on this other brane." But the universe doesn't need dark matter either. Why? Because not all observed effects that stymie current theories NEED to be explained by gravity.
    "Everyone has a plan till they get punched in the mouth." Mike Tyson
    “Culture?” says Paul McCartney. “This isn't culture. It's just a good laugh.”

  4. #14
    resonance entropie's Avatar
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    Quote Originally Posted by mal12345 View Post
    Does the current data contradict the idea of a cyclic universe?

    http://www.princeton.edu/pr/pwb/02/0...icuniverse.htm

    The theory proposes that, in each cycle, the universe refills with hot, dense matter and radiation, which begins a period of expansion and cooling like the one of the standard big bang picture. After 14 billion years, the expansion of the universe accelerates, as astronomers have recently observed. After trillions of years, the matter and radiation are almost completely dissipated and the expansion stalls. An energy field that pervades the universe then creates new matter and radiation, which restarts the cycle.

    The new theory provides possible answers to several longstanding problems with the big bang model, which has dominated the field of cosmology for decades. It addresses, for example, the nagging question of what might have triggered or come "before" the beginning of time.
    Well the idea is not necessarily bad, but its phrased like it was written by a philosopher and not by a scientist.

    First of all matter and energy cant be "created" that would be in direct violation of the second law of thermodynamics which states that energy and matter are converted. And 2nd of all it says that this new matter and energy comes from an "energy field which pervades the universe". Well statements like that sound a bit like the world of a cartoon movie to me.

    The theory in itself aint that bad, but judged from current physics there are logical discrepancies. First of all said "magical energy field", and second of all how can new matter be created if the kinetic energy would slow down ? Namely heat and radiation is nothing but particles in movement and when there is movement, impulse can be transfered and new movement can be motivated. How can no movement create new movement ? That is in direct violation with impusle theory.

    I dunno, I didnt read the whole article cause the quoted part scared me off. Of course quantum physics presents a new model where everything is possible, but I am not as crazy yet as to throw all newtonian physics over board just yet. Especially regarding the macroscopic cosmos newtonian physics are more possible to apply than quantum mechanics.
    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

  5. #15
    Senior Member Mal12345's Avatar
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    Quote Originally Posted by entropie View Post
    Well the idea is not necessarily bad, but its phrased like it was written by a philosopher and not by a scientist.

    First of all matter and energy cant be "created" that would be in direct violation of the second law of thermodynamics which states that energy and matter are converted. And 2nd of all it says that this new matter and energy comes from an "energy field which pervades the universe". Well statements like that sound a bit like the world of a cartoon movie to me.

    The theory in itself aint that bad, but judged from current physics there are logical discrepancies. First of all said "magical energy field", and second of all how can new matter be created if the kinetic energy would slow down ? Namely heat and radiation is nothing but particles in movement and when there is movement, impulse can be transfered and new movement can be motivated. How can no movement create new movement ? That is in direct violation with impusle theory.

    I dunno, I didnt read the whole article cause the quoted part scared me off. Of course quantum physics presents a new model where everything is possible, but I am not as crazy yet as to throw all newtonian physics over board just yet. Especially regarding the macroscopic cosmos newtonian physics are more possible to apply than quantum mechanics.
    The article I quoted doesn't state that energy is created. The energy field that "creates matter and radiation" is just there, although it does "heat up" and "cool down." Your quoting of "magical energy field" is in bad form, because whether or not you're just using scare-quotes is obscure to those who haven't read the article.

    This graphic shows the movement you're asking about:

    http://www.physics.princeton.edu/~steinh/brane3.html

    Newtonian physics was thrown over-board way back in 1905. And Newton had nothing to say about the origin of the universe anyway, or at least nothing that mattered.
    "Everyone has a plan till they get punched in the mouth." Mike Tyson
    “Culture?” says Paul McCartney. “This isn't culture. It's just a good laugh.”

  6. #16
    resonance entropie's Avatar
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    Ouh newtonian physics was thrown over board, guess my engineering degree is for the ass then
    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

  7. #17
    S Saiyan God Mace's Avatar
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    [YOUTUBE="http://www.youtube.com/watch?v=aBdegs7ItIE"]Earth vs Milky Way vs Universe.[/YOUTUBE]

    Otherwise; begin the video from 1:30.

  8. #18
    Senior Member Mal12345's Avatar
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    Quote Originally Posted by entropie View Post
    Ouh newtonian physics was thrown over board, guess my engineering degree is for the ass then
    Scotty would agree with me. They can't fly through the galaxy on Newtonian physics.
    "Everyone has a plan till they get punched in the mouth." Mike Tyson
    “Culture?” says Paul McCartney. “This isn't culture. It's just a good laugh.”

  9. #19
    Senior Member Mal12345's Avatar
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    That's an oldie but a goodie. Here's a Salman Khan video along the same lines.

    "Everyone has a plan till they get punched in the mouth." Mike Tyson
    “Culture?” says Paul McCartney. “This isn't culture. It's just a good laugh.”

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