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#1
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same shaping force? Galaxy, solar system, planets?
these bodies apparently are disk-shaped by the same geometrical forces. (?)
with each you have a somewhat enlarged globular center with a very thin ring or arms emanating outwards from a midpoint in the central structure. in galaxies you have a black hole in a galaxy center with billions of stars in a thin disk or spiral arms, and in a solar system similarly you have a star in a system center, and in many planets each with its own ring/moons on a plane from center. this configuration seems almost universal. really dumb question--- when and if it eventually returns back in upon itself, why would not the universe be similarly shaped? TIA jc |
#3
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same shaping force? Galaxy, solar system, planets?
these bodies apparently are disk-shaped by the same geometrical forces. (?) with each you have a somewhat enlarged globular center with a very thin ring or arms emanating outwards from a midpoint in the central structure forget the universe. why are these structures all disk shaped? thanks jc |
#4
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same shaping force? Galaxy, solar system, planets?
On 20 Jul 2003 21:05:51 GMT, (Scribe2b) wrote:
forget the universe. why are these structures all disk shaped? thanks They aren't. Spiral galaxies consist of a generally spherical center surrounded by a disk that can range from very small to very large. But elliptical galaxies are not disks, ranging from spherical to oblate spherical. Irregular galaxies also are not disks. At a larger scale, galaxy clusters are not disks, although they represent gravitationally bound material. Solar systems are disk-like because they form from collapsing clouds of gas and dust. Conservation of angular momentum requires this material to spin faster and faster as gravity collapses the cloud, and to flatten into a disk. Most of the material ends up forming the star, but some coalesces out to create planets, which naturally lie on the plane of the disk. Later interactions may result in some deviation from this plane. As a consequence, all the planets in our solar system lie on slightly different planes, with Pluto quite significantly tipped. Planets have rotational inclinations that may be substantially different from their orbital planes. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
#5
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same shaping force? Galaxy, solar system, planets?
Unlikely, because there would be no "central mass" with which to start
the flattening process, NOR the rotational forces present, as with Saturn's rings, our Solar System, and spiral galaxies in general. (Your small samplings, containing a massive 'core'). [And BTW, flattening is not really Universal...something like 80% (or more) of *all* galaxies are of the elliptical variety, and are, more or less, spherordical in shape....ie...not 'flattened', probably because of low, or no, rotational component and/or very even distribution of stellar masses. So since we assume that the entire known visible Universe is pretty much 'evenly distributed', AND non-rotating, would it not be more likely to assume a (continued) spherical shape, similar to an {E-1 or E-2} elliptical galaxy, as opposed to any other shape? (If there were money involved, that's where I'd place MY best bet!) But the question, even a hypothetical one, while not dumb, is meaningless under today's outlook, because we (our Universe) are on a one-way trip outbound, and not only expanding, but evidently are *accelerating* our outbound expansion, according to the latest 3 independent studies. The "Big Crunch" ending has pretty much been ruled out....even before the 'acceleration' component was recently discovered. Ours is an eventual "heat death", due to lack of energy. Clear Skies, Tom W. Scribe2b wrote: these bodies apparently are disk-shaped by the same geometrical forces. (?) with each you have a somewhat enlarged globular center with a very thin ring or arms emanating outwards from a midpoint in the central structure. in galaxies you have a black hole in a galaxy center with billions of stars in a thin disk or spiral arms, and in a solar system similarly you have a star in a system center, and in many planets each with its own ring/moons on a plane from center. this configuration seems almost universal. really dumb question--- when and if it eventually returns back in upon itself, why would not the universe be similarly shaped? TIA jc |
#6
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same shaping force? Galaxy, solar system, planets?
On 20 Jul 2003 23:41:31 GMT, (Scribe2b) wrote:
chris many thanks for your generous time and comments. so... the milky way isnt somewhat disklike seen from the horizontal? jere The Milky Way is a spiral galaxy with a substantial disk, which is why we see it as a band of light across the sky. But the Milky Way represents just one type of galaxy. Presumably it is flattened into a disk because its member stars share a common rotation. Other types of galaxies are different. The stars in elliptical galaxies, for example, all orbit in different planes and directions. As a result, these galaxies don't flatten out into disks. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
#7
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same shaping force? Galaxy, solar system, planets?
"Scribe2b" wrote in message ... these bodies apparently are disk-shaped by the same geometrical forces. (?) ---snip--- this configuration seems almost universal. really dumb question--- when and if it eventually returns back in upon itself, why would not the universe be similarly shaped? TIA jc I've wondered the same thing myself... and you can take in the opposite direction, too. On a molecular level, with electrons orbiting around protons, it seems to me to follow a similar configuration(albeit spherical rather than planar). It's almost like a fractal image, one can keep zooming out and see similar patterns arranging themselves. Just a thought... -Jeremy- |
#8
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same shaping force? Galaxy, solar system, planets?
On a molecular level, with electrons orbiting around
protons, it seems to me to follow a similar configuration(albeit spherical rather than planar). It's almost like a fractal image, one can keep zooming out and see similar patterns arranging themselves. if 4 dimensions are necessary to describe the universe, why would not 4 apply to atomic and subatomic realms as well? jc |
#9
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same shaping force? Galaxy, solar system, planets?
"SpaceBass" wrote in message ... [...] I've wondered the same thing myself... and you can take in the opposite direction, too. On a molecular level, with electrons orbiting around protons, it seems to me to follow a similar configuration(albeit spherical Electrons do not orbit around the nucleon in any way even remotely similar to a rotating disk. Clear Skies, Magnus rather than planar). It's almost like a fractal image, one can keep zooming out and see similar patterns arranging themselves. Just a thought... -Jeremy- |
#10
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same shaping force? Galaxy, solar system, planets?
I just don't think we can extrapolate anything, shape included,
from the quantum world (where I've read that there may be as many as 10 or 11 dimensions) to the macroworld....with its 4 dimensions (including time here). They literally are, "2 completely different" worlds, with completely different laws, and probably don't even know (or care) that 'the other' world exists. FWIW, Tom W. SpaceBass wrote: "Scribe2b" wrote in message ... these bodies apparently are disk-shaped by the same geometrical forces. (?) ---snip--- this configuration seems almost universal. really dumb question--- when and if it eventually returns back in upon itself, why would not the universe be similarly shaped? TIA jc I've wondered the same thing myself... and you can take in the opposite direction, too. On a molecular level, with electrons orbiting around protons, it seems to me to follow a similar configuration(albeit spherical rather than planar). It's almost like a fractal image, one can keep zooming out and see similar patterns arranging themselves. Just a thought... -Jeremy- |
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