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On Jul 24, 10:17*am, "Painius" wrote:
So Jupiter and Saturn possess about 90% of all the angular momentum in the Solar System. *And the vast majority of the rest of the angular momentum is had by all the other major planets and minor planets that go around the Sun. *This has presented science with a very interesting puzzle... Why does the Sun, which possesses the vast majority of the mass in the Solar System, possess such a very small ration of the angular momentum? Yo Paine If you recomember, in the earlier discussion on this subject, it was suggested that perhaps the fully-formed Sun did not "lose" angular momentum but didn't have it in the first place. This would be because the rapidly spinning proto-Sun accreted *not* via its equator as is commonly supposed, but via its poles. The inflow from the accretion disc would naturally favor the poles, as has been discussed here many times in relation to BHs of high spin rate. And as observed frequently throughout the cosmos, there are bipolar jets associated with accreting protostars. These jets are an unmistakable signature of *bipolar accretion* as outlined above. In such a scenario, the infall from the accretion disc separates into twin flows, riding 'up and over' the final hump before plunging in through the poles. Thereupon, the flows collide head-on, 'squashing out' into a disc, the collision energy going into superheating of the sun-to-be. The collision energy, instead of going into angular momentum as commonly supposed, is helping stoke the fires of the nascent Sun, toward the day of Ignition. Upon Ignition, the disc swells, balancing against gravity, to the self-luminous orb of slow rotation. Our Sun is born. Bipolar accretion is a basic tenet of the CBB model, a fundamental pillar in fact. The naturally high spin rate of accreting objects makes them *gravitic dipoles* and dictates the natural accretion pathway is via the poles. The higher the spin rate, the more acutely the infalls *must* align to the polar axis. This is the Lense-Thirring or 'frame dragging' effect carried to the extreme, as with accreting BHs. With accreting protostars the effect would be not as extreme, but the infalls would still be predominantly via the poles. The end result of this star-forming process would be a star of slow rotation, answering the question of "why such low angular momentum?" |
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"oldcoot" wrote in message...
... On Jul 24, 10:17 am, "Painius" wrote: So Jupiter and Saturn possess about 90% of all the angular momentum in the Solar System. And the vast majority of the rest of the angular momentum is had by all the other major planets and minor planets that go around the Sun. This has presented science with a very interesting puzzle... Why does the Sun, which possesses the vast majority of the mass in the Solar System, possess such a very small ration of the angular momentum? Yo Paine If you recomember, in the earlier discussion on this subject, it was suggested that perhaps the fully-formed Sun did not "lose" angular momentum but didn't have it in the first place. I don't see how, oc. If it was spinning fast enough to be accreting through the top and bottom, then there had to have been a large amount of angular momentum for this to happen... This would be because the rapidly spinning proto-Sun accreted *not* via its equator as is commonly supposed, but via its poles. The inflow from the accretion disc would naturally favor the poles, as has been discussed here many times in relation to BHs of high spin rate. And as observed frequently throughout the cosmos, there are bipolar jets associated with accreting protostars. These jets are an unmistakable signature of *bipolar accretion* as outlined above. In such a scenario, the infall from the accretion disc separates into twin flows, riding 'up and over' the final hump before plunging in through the poles. Thereupon, the flows collide head-on, 'squashing out' into a disc, the collision energy going into superheating of the sun-to-be. The collision energy, instead of going into angular momentum as commonly supposed, is helping stoke the fires of the nascent Sun, toward the day of Ignition. Upon Ignition, the disc swells, balancing against gravity, to the self-luminous orb of slow rotation. Our Sun is born. Are you saying that this disk is what spreads out to form the planets and planetesimals? In several ways, that would make sense. However, the disk would have had to swell and expand long before the protoSun became a fusor, a true star. By the time the protoSun ignited, many of the orbs in the disk would have had to accrete enough of the surrounding material so as not to be blown off and away by the initial blast of solar wind that took place when the Sun ignited. So the disk would have had to have been in place long before the compressed hydrogen sphere at the center of the disk fused to become a true star. Bipolar accretion is a basic tenet of the CBB model, a fundamental pillar in fact. The naturally high spin rate of accreting objects makes them *gravitic dipoles* and dictates the natural accretion pathway is via the poles. The higher the spin rate, the more acutely the infalls *must* align to the polar axis. This is the Lense-Thirring or 'frame dragging' effect carried to the extreme, as with accreting BHs. With accreting protostars the effect would be not as extreme, but the infalls would still be predominantly via the poles. The end result of this star-forming process would be a star of slow rotation, answering the question of "why such low angular momentum?" So the swelling of the disk would have had to take place while the bipolar accreting process you talk about was taking place. At this point, the hydrogen cloud must have been compressed into a tight, fast- spinning sphere (not into an already fully formed disk with a bulge at the center, as the mainstream model describes). So the disk swells/expands outward from the sphere and takes almost all of the angular momentum with it. Millions and millions of small accretions of solids begin to form in the disk that are spinning like crazy! These keep bumping into each other and clumping together to form larger and larger masses. The process of planet accretion probably took only a million (or a few million) years. During this time the Sun, almost totally lacking angular momentum, did spin slowly and continued to compress. When the pressure at the core reached a critical level, fusion of hydrogen into helium began and P O W ! our big, bright Sun was born. The ensuing powerful blast of energy blew all the smaller accretions and dust out beyond Neptune, while the larger accretions held their own and continued to orbit the new star. Some accretions and collisions continued to take place in the disk, eventually forming the awesome Solar System pretty much as we see it today. happy days and... starry starry nights! -- Indelibly yours, Paine Ellsworth P.S.: Thank YOU for reading! P.P.S.: http://painellsworth.net |
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On Jul 26, 6:48*am, "Painius" wrote:
"oldcoot" wrote in message... This would be because the rapidly spinning proto-Sun accreted *not* via its equator as is commonly supposed, but via its poles. The inflow from the accretion disc would naturally favor the poles, as has been discussed here many times in relation to BHs of high spin rate. And as observed frequently throughout the cosmos, there are bipolar jets associated with accreting protostars. These jets are an unmistakable signature of *bipolar accretion* as outlined above. * * * * * * * * * In such a scenario, the infall from the accretion disc separates into twin flows, riding 'up and over' the final hump before plunging in through the poles. Thereupon, the flows collide head-on, 'squashing out' into a disc, the collision energy going into superheating of the sun-to-be. The collision energy, instead of going into angular momentum as commonly supposed, is helping stoke the fires of the nascent Sun, toward the day of Ignition. Upon Ignition, the disc swells, balancing against gravity, to the self-luminous orb of slow rotation. Our Sun is born. Are you saying that this disk is what spreads out to form the planets and planetesimals? No, the proto-planets/planetesimals were accreting in situ at this stage, separate from the central disc of the proto-Sun. Soo.. By the time the protoSun ignited, many of the orbs in the disk would have (accreted) enough of the surrounding material so as not to be blown off and away by the initial blast of solar wind that took place when the Sun ignited. Yupp. So the disk would have had to have been in place long before the compressed hydrogen sphere at the center of the disk fused to become a true star. Yup. * * * * * * * * * * *Bipolar accretion is a basic tenet of the CBB model, a fundamental pillar in fact. The naturally high spin rate of accreting objects makes them *gravitic dipoles* and dictates the natural accretion pathway is via the poles. The higher the spin rate, the more acutely the infalls *must* align to the polar axis. This is the Lense-Thirring or 'frame dragging' effect carried to the extreme, as with accreting BHs. With accreting protostars the effect would be not as extreme, but the infalls would still be predominantly via the poles. The end result of this star-forming process would be a star of slow rotation, answering the question of "why such low angular momentum?" So the swelling of the disk would have had to take place while the bipolar accreting process you talk about was taking place. *At this point, the hydrogen cloud must have been compressed into a tight, fast- spinning sphere (not into an already fully formed disk with a bulge at the center, as the mainstream model describes). So the disk swells/expands outward from the sphere and takes almost all of the angular momentum with it. * Yes. But note that the central entity you term a "sphere" was itself highly compacted and oblate due to its high spin rate. Then *upon Ignition at its core*, it commenced expanding by many, many orders of magnitude, dissipating the angular momentum of the *pre-Ignition* core mass. The expansion ultimately balanced out against gravity, the stasis point forming the sphere of the newborn, slow-rotating Sun. The ensuing powerful blast of energy blew all the smaller accretions and dust out beyond Neptune, while the larger accretions held their own and continued to orbit the new star. Some accretions and collisions continued to take place in the (protoplanetary) disk, eventually forming the awesome Solar System pretty much as we see it today. By jove you've 'got it' old chap. :-) But note one major difference between an accreting BH and an accreting proto-star. A BH exists in a compacted, degenerate state and thus cannot expand, shedding its angular momentum. |
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This is a bit off-topic to the thread subject, but it's one dude's
delightful diatribe against the Primacy of Math in contemporary physics. He's spot-on in describing the institutional mandate which denies the mechanics (mechanisms of causation) of what The Math is describing. http://milesmathis.com/death.html One utterly poignant excerpt from the text is this : "If time and distance are not behaving in normal ways, the equations have no way of correcting for it, since they don't have any way to express it." Does this fit the Pioneer anomaly to a tee or what?! The author is a radical political Left-winger but i guess that can be forgiven in light of his scientific insight. :-) |
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"oldcoot" wrote in message...
... This is a bit off-topic to the thread subject, but it's one dude's delightful diatribe against the Primacy of Math in contemporary physics. He's spot-on in describing the institutional mandate which denies the mechanics (mechanisms of causation) of what The Math is describing. http://milesmathis.com/death.html One utterly poignant excerpt from the text is this : "If time and distance are not behaving in normal ways, the equations have no way of correcting for it, since they don't have any way to express it." Does this fit the Pioneer anomaly to a tee or what?! The author is a radical political Left-winger but i guess that can be forgiven in light of his scientific insight. :-) No, sorry oc, it cannot be forgiven in light of his "scientific insight". He's a dickhead, and were he posting to alt.astronomy, you'd probably either be ignoring him or plonking him outright. His diatribe can be weighed by his other facets. The primacy of math is a fact of life we all have to learn to live with. It isn't science if it cannot be measured, or at the very least, deduced using the appropriate equations. Big pictures are fine. Quantum mechanics is all based upon "big picture" deductions. Most of the theories and ideas of cosmology are "big picture" deductions (granted, some of the pictures are very distorted). But if a working mathematical model cannot be programmed into a computer, analyzed, and deductions made from it, then an idea is left to philosophical solutions. And sorry, that ain't science. That's philosophy. I'm not and i won't belittle philosophy. The big picture is and always will be an important part of finding the truth about reality. But it ain't science. And therefore, without this important foundation, it may always be frought with controversy. And thank goodness! I can't imagine how boring life would be without all of our controversies! happy days and... starry starry nights! -- Indelibly yours, Paine Ellsworth P.S.: Thank YOU for reading! P.P.S.: http://painellsworth.net |
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On Jul 26, 7:48*pm, "Painius" wrote:
"oldcoot" wrote in message... This is a bit off-topic to the thread subject, but it's one dude's delightful diatribe against the Primacy of Math in contemporary physics. He's spot-on in describing the institutional mandate which denies the mechanics (mechanisms of causation) of what The Math is describing. http://milesmathis.com/death.html One utterly poignant excerpt from the text is this : "If time and distance are not behaving in normal ways, the equations have no way of correcting for it, since they don't have any way to express it." Does this fit the Pioneer anomaly to a tee or what?! The author is a radical political Left-winger but i guess that can be forgiven in light of his scientific insight. :-) No, sorry oc, it cannot be forgiven in light of his "scientific insight". *He's a dickhead, and were he posting to alt.astronomy, you'd probably either be ignoring him or plonking him outright. His diatribe can be weighed by his other facets. The primacy of math is a fact of life we all have to learn to live with. The operative word is *primacy*... of math. Nobody's denying the utility of math. But making The Math substitute for the mechanism it's describing is exactly what bequeathed us the VSP. The sorry state of cosmology/astrophysics and theoretical physics is the direct legacy of the Primacy of math. *It isn't science if it cannot be measured, or at the very least, deduced using the appropriate equations. It ain't science if it's predicated on a false premise. Using perfectly good math to describe it don't make it science. Geocentrism being a case in point. Today we got "eleven dimensions" and an ever- escalating patchwork of fudgery and kludgery, "adding epicycles" using perfectly good math to make the VSP "work". This is the essence of what was meant in that poignant diatribe against the Primacy of math. Big pictures are fine. *Quantum mechanics is all based upon "big picture" deductions. *Most of the theories and ideas of cosmology are "big picture" deductions (granted, some of the pictures are very distorted). *But if a working mathematical model cannot be programmed into a computer, analyzed, and deductions made from it... ...like "ever-accelerating expansion" culminating in an ignominious entropic heat death. And... that ain't science. *That's philosophy. I'm not and i won't belittle philosophy. *The big picture is and always will be an important part of finding the truth about reality. But it ain't science. *And therefore, without this important foundation {math}, it may always be frought with controversity. The whole point is - the *utility* of math is supposed to be subservient to the mechanism it is describing. The evil of the Primacy of math is that it supplants and denies the existance of that mechanism, becoming the substitute `for` the mechanism. It presents supernovae, hypernovae and quasars as being POWERED literally by equations, 'metrics', geometry, and "curvature" of a mathematical abstraction called "space-time". Such is the legacy of the P of M and its ******* offspring the VSP. Rant off. :-) |
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