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  #1  
Old 01-03-2010, 10:53 PM
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why does everything spin?

no satisfactory answers, the best I could find, is that it is similar to 'why do things have mass?'

yes the skater does spin faster when its arms move in, but the spin has to be there to begin with for this to be in effect

cue symptom777 cussing in all fury :
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  #2  
Old 01-04-2010, 10:00 AM
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a force from two sides creates a vortex, and thats what we have from quarks to galaxies
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  #3  
Old 01-04-2010, 03:49 PM
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A displacement of any discrete object will be linear only when the displacing object impacts the object exactly "head on". Any impact not on a center-to-center trajectory will tend to impart some spin to both objects. Interesting how angular momentum is a measure of stability in a gravitational field.

http://en.wikipedia.org/wiki/Angular_momentum
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  #4  
Old 01-04-2010, 07:21 PM
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angular momentum (like all momentum) is conserved.
it cannot come from nothing

for each spinning object, normal distribution suggests that
eventually there should be a collision with another object which has a spin
in the counter direction

- thus negating the spin

damn i wish my pc had a million times more processing power
then i could build a model processing millions of particles

c'mon microsoft I need 1 million gigs of ram at least!
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  #5  
Old 01-04-2010, 07:36 PM
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Quote:
Originally Posted by PoseidonsNet
normal distribution suggests that
eventually there should be a collision with another object which has a spin
in the counter direction
Ahh, I like how you think using 'big words' makes you look smart.

If "normal distribution" suggests that eventually there should be a collision with another object which has spin in the counter-direction, what does "normal distribution" suggest will happen in the meantime? Or after?

I don't know why I try with you.
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  #6  
Old 01-04-2010, 08:58 PM
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is 'distribution' a big word for you, pussy?
ag shame

...you try with me because you perhaps realise that all teaching is always a form of learning and one never does one without the other...

Quote:
what does "normal distribution" suggest will happen in the meantime? Or after?
- that the spins should negate each other if the collective angular momentum of the universe is equally distributed

thus

the collective angular momentum of the universe is NOT equally distributed :
not random

thus

... ...v.... .. d......d
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  #7  
Old 01-04-2010, 09:27 PM
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Quote:
Originally Posted by PoseidonsNet
that the spins should negate each other if the collective angular momentum of the universe is equally distributed

thus

the collective angular momentum of the universe is NOT equally distributed :
not random

thus
GOD DID IT! OH MY GOD, I JUST FIGURED IT OUT NOW, THANKS YOU YOUR BRILLIANCE! PUBLISH YOUR FINDINGS, MY GOOD SIR. PUBLISH THEM, AND BE RECOGNIZED!

Wha--wait a minute...

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  #8  
Old 01-04-2010, 11:26 PM
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the human mind = infinite dimensions
the creative mind even more than this because it goes beyond dimensions

Quote:
PUBLISH YOUR FINDINGS, MY GOOD SIR. PUBLISH THEM, AND BE RECOGNIZED!
i did
recognition isn't all its cracked up to be
;-j
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  #9  
Old 01-07-2010, 04:32 AM
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Quote:
Originally Posted by PoseidonsNet View Post
...- that the spins should negate each other if the collective angular momentum of the universe is equally distributed

thus

the collective angular momentum of the universe is NOT equally distributed :
not random ...
Who says the collective momentum, angular or otherwise, of the universe is equally distributed - or not equally distributed? Mass, at least the part we know about, seems more or less evenly distributed, at least in the big picture, but our science types tell us there's that 95% we don't know about. What else don't we know about? As far as we know, the universe is still settling down from what appears to have been an origin, or at least a do-over.

Besides all that, you originally asked "why" everything spinns. We don't know that everything does. Consider that in order for an impact between two objects to impart a change in angular momentum (spin) to one or both objects, the objects must have some internal structure. Without that structure there would be no friction as we know it and the impact would be resolved as a center-to-center impact. In other words the result would be an acceleration with displacement but without spin.

I think the dynamics of a non-rigid structure (a fluid-like environment) would be such that almost all impacts, even among objects without internal structure, would include a lateral component not in line with the pre-impact path of the impacting object. It may be that the cumulative effect of non-linear reaction would produce what would appear to be swirls or vortices in the fluid without the necessity of the individual particles in the fluid spinning. A similar effect would be the eddies in a stream or river.

Or it could be something completely different.
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  #10  
Old 01-07-2010, 07:20 PM
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Quote:
A similar effect would be the eddies in a stream or river.
Thats a good analogy.

The river only has eddies because of the flow of water into the river of a particular shape.

If there were no input of water, it would eventually distribute evenly;
all movement would be countered by some other distributed movement, (friction)
and it would come to a standstill. (all kinetic energy converted to low heat)

The eddies do not form unless there is a particular flow in a particular direction,
formed by the steady downhill slope of the riverbed. Randomness won't do it.

For the universe to be in a mostly constant spin, there must be a steady inflow of mass/energy in a particular direction formed by the shape of the universe.

Thus the EARLY stages of the universe were not normally distributed;
the laws of purely mechanical (newton/einstein) physics are not enough
to produce spin as a norm unless the components of the universe
were distributed in a way which was not random.
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  #11  
Old 01-08-2010, 12:47 PM
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Quote:
Originally Posted by PoseidonsNet View Post
the laws of purely mechanical (newton/einstein) physics are not enough
to produce spin as a norm unless the components of the universe
were distributed in a way which was not random.
Spin is the norm for a simple reason: of the infinite possible angular momentums available to an object, having a total lack of angular momentum is a singular case. Odds of any particular spin are (∞-1) to 1. Besides, where would you find a universal frame of reference for the judgment?
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  #12  
Old 01-08-2010, 11:36 PM
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At least you're not encouraging him.
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  #13  
Old 01-13-2010, 02:02 AM
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Poisidon is right, there has to be a source of energy to form a spin vortex. In nature a tornado, a vortex, uses temperature differences to cause a rise in air and probably a spin of the earth to start the vortex. If considering vortex as a reson for matter particles, a source of spin must be found.
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  #14  
Old 01-13-2010, 02:04 AM
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Sorry I just noticed I spelled poseiden wrong.
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  #15  
Old 01-13-2010, 05:08 AM
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Quote:
Originally Posted by spacedout View Post
Sorry I just noticed I spelled poseiden wrong.
C'mon son. C'mon!
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