I’m not sure that I can pose this question as well as I have it thought out in my mind, but I will give it a try anyway.
Supposing that the Universe began with a “big bang”, how is it that the matter became non-uniform? I am imagining an extremely dense ball of matter that exploded and continued to expand thereafter eventually (after several billion years) making it’s way to the universe that we know today. Hopefully someone is understanding what I am talking about?
I will do my best to illustrate:
Basically, I am wondering what made the matter clump together non-uniformly into different objects (i.e. stars, planets, gasses, etc.)? rather than continuing in a state of perfect uniformity? Any ideas? If I am still very unclear in my question, please let me know and I will try to explain further.
I’m not very well versed in this subject but the diagram was too great so i had to reply!
I did some hunting around for the answer. It seems that the question you’re asking needs to be flipped on its head. Apparently it’s very easy to explain the non-uniformity of the universe but takes a step further to explain the uniformity. I see no reason why the big bang had to explode in exactly the same force in every direction. Perhaps that is knowledge that you have and I don’t.
especially the link to ‘inflation theory’ which is an extension to the Big Bang theory which is not complete when discussing the uniformity of the universe.
I’m new to philosophical inquiry’s but i have many source’s when it come’s to science been my occupation, so hope i can help slightly more clear on the non-uniformity puzzle.
Alan Guth came up with the idea of inflation: that in a trillionth of a trillionth of a trillionth of a second(at the universe’s beginning), it grew from the size of a atomic particle to the size of a grapefruit. Doesnt sound much, but thats a million trillion trillion trillion trillion trillion trillion-flod increase in volume, a unexpected consequence of the general theory of relativity is that gravity can act as a repulsive force as well. Which means the universe was actually pushed apart by its own gravitational field. The universe has somewhat positively calmed since then.
The are three cosmological puzzles that are solved; the first is that the universe is uniform; the second is that space seems to be flat; and the third, in a sence, the converse of the first: where does all the “grit” come from?
At first it could seperate at massively more than the speed of light they were not actually travelling through space–and that expansion is not constrained by relativity. The flatness problem disappears because regardless of its intial geometry, a big expansion forces space to be flat. Like when a balloon is inflated, its curvature diminishes: the universe is much bigger than a balloon so it looks much flatter. Now the density-fluctuation problem is more subtle, and goes back to quantum theory. Just as the universe first tunnelled its way into existence, it was small enough for the uncertainty principle to produce a continually shifting pattern of density fluctuations within it. Inflation blew the anomalies up to vast dimensions, taking out of the quantum realm and “freezing” them into permanency.
The idea was tested by what depended on minute fluctuations in the cosmic microwave background(CMB). This lies between radio waves and infra-red light: as it is radiation left over from the big bang, thus it carrys a imprint of any “frozen” quantum fluctuations. They managed to make a map and prove that fluctuations had formed the nuclei for the"grit". Once the fluctuations were frozen the rest was pre-ordained. The gravity of the ripples pulled in gas to form small clusters of supermassive stars…and so on.
I always thought that an explosion by definition had a momentum of zero (at least assuming that the exploding thing was not moving, which throws all sorts of complications in…) and therefore the force in every direction balanced out?
Can anyone give me a more solid reasoning for this problem?
I have no more information than you but to me it only makes sense that the explosion would expand uniformly. For instance, if you had a completely still basin of water and then tapped the center of it, it would ripple uniformly without any random occurences. Unless there were something else (another variable, a friction point) to set it off balance; yet, in the big bang scenario, I am assuming that the big bang took place in the center of nothingness, so there is no other variable to set it off balance. Am I making any sense, or am I too simplistic in my analysis?
I’m might be talking junk but… At a quantum level there mightn’t be such a thing as perfect symmetry. While they’re still arguing over whether atoms should be described as energy waves or particles, most (from what I’ve read) seem to be siding with waves. So even at the smallest levels there’s still imbalance in the distribution of energy, therefore maybe that’s why the universe is not perfectly symmetric.
This is a simplified way of what i’m trying to say…
As we know the universe is not a uniform gas, it is full of non-uniform galaxy’s, stars and wotever.
It stem’s back to the uncertainty principle(exploited commercially in electronics). In pre quantum physics, an object confined by a barrier is confined, the uncertainty means a objects position is actually indeterminate. The barrier need not be physical; it can be energetic–such as going from nothing to a mixture of positive and negative energy, that tunnelled into existence. This though is fairly mythological at the moment,
as who could possibly test it?
Some compare this to a gas cooling. First it becomes a liquid, then a solid. A better analogy might be the cooling magma under the earth. It start’s off as a uniform mixture of liquid rock, but as the temperature drops, minerals start to form one after another as their freezing points are reached. Each time another type of mineral crystallise’s, the composotion of the mixture changes. Eventually, no liquid remains, and you are left with the granite(The mix of subatomic particles). In mathematical terms. each cystallisation from the magma is described as the breaking of symmetry. When inflation(when all energy that was concentrated grew hugely)ended, the universe had cooled enough for the -/+ energy to form particle’s and antiparticles. These would annihilate each other, at every billion annihilation’s one anomalie particle would remain. This tiny asymmetry produced the tangible stuff to creat galaxy’s, us and wot ever.
So now there are people who are trying to find out why theres a break-up in symmetry.
Exactly, but where did the original asymmetric anomalies come from?
and this is my question that still has not been answered. So has nobody postulated any such theory to respond to this problem?
When I get some time, I will check out the website that you refered me to Ben, and maybe I will find some answers there. Hopefully, they speak in English. Is there such thing as “Cosmology and Physics for Dummies”?
I have pondered some of the same questions and theories previously mentioned, but in the last few years, have been intrigued more and more by the theory of the holographic universe. I first read “The Holographic Universe” by Michael Talbot, about ten years ago and was very skeptical for a long time about it’s postulations. I have continued to read and investigate this subject and have begun to believe that Talbot may really be on to something grand. Here is a link to a site that discusses this subject in words much better and more thorough than my own. http://www.earthportals.com/hologram.html
I find it to be an interesting theory, which if true, would dramatically change the way we look at not only our universe, but our very existence.
In the first moments of the universe started it was small enough(quantum sized) that the matter that existed back then, for the uncertainty principle( that the negative force-or electron[or leptons as it is in physics] ) to have indecision and not be uniform to begin with when it tunnelled (braking the perfect symmetry-move were it’s not meant to ). Being that it is always uncertain where it is, or where it will move. This coursed density fluctuation’s but with the “theory” of inflation (massive increase in volume), these denser part’s would of remained tiny as it grew, but because of inflation they were taken out of quantum sizes- and blew up into vast dimensions.
This is all theory and could be a load of rubbish.
Then it’s all about what happened or infinitely existed before hand? It’s not limited by science, something unperceivable, a unimaginable intermediate or my subconscious talking rubbish.
atl.philosophy wrote: > I am pretty sure that a big bang
happened. Did it have to create the whole universe or just what we can
see. Why not have the universe as infinit matter infinite. The Big
bang was caused from a black hole reaching critical mass. There are
other black holes out there as matter gets compressed and expanded.
Interesting point I’ve always looked at the universe as a finite object created by the big bang. What if the universe stretches infinitely out in all directions? And the big bang we see is just one of the many that is happening across the universe as black holes go critical. Somewhere out there in the infinite universe there’s a new big bang and it’s throwing out everything it has consumed. Matter to energy back to matter. It also means the universe can have always existed, while the big bang is just one of many that has happen over the course of infinity. You’ve convinced me its time to read some books on quantum physics.
Well the way the non-multiuniverse goes is eventually the universe will be eventually be composed of super black holes. These as stated open up different universes as they open up(mathmatically speaking) different dimensions.
Fundemental particals may differ slightly but still theyll have electric charges. Now this is were it gets interesting…
Umm like yea wot ever
So basically we can only sense things that have a electric charge. But dark matter doent, so what is it? Many think a different theory of gravity is needed to explain it, as we only know about it because of its gravity.
Also rods. This is the belief and video cameras getting slight glancings that there are incredibly fast moving creatures called rods, that we cant sense cause there to fast. These are believed to live everywhere, space, earth - everywhere; has anyone else heard of them?
The great cosmic riddle. Why beings, and not rather none of such bizarre luck?
When a cluster of energy related to itself so as to function in containing its inherent mechanism, this was over time selected. Randomly, different of such things occurred, and what has been selected is a system of particles that relate to each other, that form a cosmos, a place where laws apply.
Most combinations of forces are one time instances, only some influence more energy so as to behave in the same way - these were the ones who survived and became a particular uniformity, against the still present universal uniformity of the more elemental form/force.
There where force combines in self-reproducing mechanisms time-space is created - curved where it is flat, there is uniformity, non existence. The ripple occurred because the reality in which the ripple didn’t occur is not this one. If there is nothing there is no limit either.
Over time such particles survived, and over time selection of them began to run along the line of increase, where particles structurally intertwined, and the principle of the monad always turns out to survice and procreate. One could say the pyramid of matter from elementary to complex is built by selection of two things: codependence and inherent sustainment, where the second leads the second, and the second gives context to exist to the first. Why this exists at all is simply shown in a negative proof: all that does not exist does not exist.
Don’t think of it as a dense ball of matter. Matter isn’t uniform, it’s made up of electrons and protons and neutrons, which aren’t uniform either. Instead they have a wavelike nature. Those waves are waves in space. And if you’ve got a wave in something, it isn’t uniform. So think of “an extremely dense ball of space with no waves in it”. Something happened to it, so that it was somehow released and a whole load of waves formed within it. People talk about a phase-change, which is like a block of explosive turning instantly into a gas. It makes a bang which is striking a bell, so you get waves. These waves created matter via pair production, and the matter then clumped together because of gravitational fields… which are “inhomogeneous space”. See Einstein’s Leyden Address for that.
Once you’ve got matter, you’ve got non-uniformity, and a little bit of non-uniformity gets magnified. Work back from that and you say once you’ve got waves you’ve got non-uniformity. But work back from that and you hit a brick wall. Nobody really knows the answers to this sort of thing. When you look closely at some celebrity solemnly announcing that it was all down to “quantum fluctuations”, you come to appreciate that he’s just fobbing you off with a non-answer.
A) The concept of a singularity is physically and logically impossible. Most of Science has realized that so now refer to a singularity as merely a small highly dense existence.
B) Infinite homogeneity is also logically and physically impossible.
Hence the occurrence, if it ever happened, was of a small non-uniform substance.
