Was the big bang super cold?

Very early in the Big Bang sequence the temperature was 10¹³ K. That is not cold!

At that temperature there was no hydrogen and hydrogen did not appear until about 100 seconds after the Big Bang when the temperature was about 10⁹ K. 400,000 years after the Big Bang the universe cooled to a balmy 9,000K!

During the first 100 seconds what existed was mostly energy and sub atomic particles at extreme energy levels then protons and antiprotons formed, which was followed by hydrogen and helium.

Even earlier, in the big bang sequence, it radiated no energy at all of any type.

Please define "heat".

Well, I don't know about no energy radiated at all and much before the Grand Unification Epoch is pretty much theory and shaky at best. So, it is all speculation at best.

If you want to learn more, try Wikipedia.

The big bang was a diversionary tactic that leads no where, began no where and proportions of which are no where to be found.

Everything formed from nothing.Hmm! Sounds kinda like a miracle,huh?I guess it is ok to believe in a miracle if science can explain it with an infinitely small singularity,smaller than nothing. We are really an inflated nothing.Some will say,yes, the singularity had a size, that it was infinitely small.Please explain the difference between that and nothing.If our theories are all based upon a speculation that cannot be proven, then the foundation of all the theories after that point are based on presumption.You can come in in the middle of a movie and make up any kind of preceeding plot that fits the current events,but not nescessarily the proper one.I realize a theory has to begin with assumptions, and ferret out inconsistencies or non-repeatble results.Is the big bang repeatable? Sure, we can bang things together,like highly evolved cave men beating stones together, but instead of looking for stone flakes, we are looking for elementary particles, but our very best accelerators can not even begin to actually duplicate the BB.There are quasars that accelerate particles millions of times as powerful as our best effort, and the source is no larger than a beach ball, somewhere near the surface of the pulsating quasar.And quasars are a dime a dozen in the cosmos.There will probably be discovered new laws of physics that apply to super dense and super large objects, much as Newton's laws do not hold true on the quantum scale.It is a noble quest, to try to understnad the origins of the universe in which we belong, and if we do not destroy ourselves first, we may survive and evolve into beings that are capable of that. The normal first exploitation of new knowledge is in weapons development,figuring out how to kill each other more efficiently.I just hope that with knowledge comes the wisdom to use it.It is severly lacking at our present step on the evolutionary ladder.

Hi HTRN,

Anonymous Hero has given you part of the "main-stream" theory of the Big bang. Black hole temperature is given by T = ħc³/8πkGM. By this formula, the temperature of a BH with a few solar masses is about a millionth of a degree above absolute zero. It seems that the BH has to explode before there is heat?

The Black hole event horizon radius is given by R = 2GM/c^2. This doesn't give me any idea how big the matter actually is. With the classical BB theory, the universe must start out with 10 billion times the total mass in the visible universe today. In Alan Guth's inflationary version, the initial 'seed' weighed about an ounce, and had a diameter more that a billion times smaller than a proton. In this version, there is an infinite number of universes created at an ever faster rate. I have trouble swallowing that. Scientists are constantly trying the eliminate God from the equation, but they can't do it.

"It is known that matter in a Bose-Einstein state behaves very strangely,penetrating solid containers, and defying gravity"

Tell me more. If matter in a BH defies gravity, what holds it together?

Regards,

S

Sure.It does not levitate, but it creeps UP the side of the container holding it, and appears to "defy gravity" by so doing.There are forces here that we do not yet fully understand.There are some weird phenomenon that can eventually be explained, like bubbles going down in a glass of stout beer, instead of up.It puzzled scientists for years, but now it is generally accepted that the friction of the bubbles touching the glass is greater than their ability to float,so initially they stick to the glass.The bubbles in the center rise, not having to overcome friction.When they reach the top, they explode,and the liquid carrying them begins to travel outward from the explosion, and sink downward when they reach the edges, carrying the lingering side bubbles with them. Perhaps some similar theory will help explain the strange action of BE matter states.

The point I was making,however, in my previous post, is that if matter can behave so strangely at near A-Zero with normal gravity, then it could indeed be very strange under intense gravity and real A Zero temps. Surely the temperature of the Singularity is much colder than any black hole.As for the event horizon of the singularity:There was none. There were no events. No space-time.

Yes, the singularity had to explode to produce heat,if indeed it did "explode".

Perhaps it simply expanded.Like a bubble rising in liquid expands.Either internal vapor pressure within the bubble exceeds the external pressure of the liquid to form,or the external pressure drops and forms a bubble.The bubble is forced from between the molecules of the liquid.

Eventually the bubble will reach the surface and "explode", never to form again.

A "one shot deal".

An explosion is different. A rapid reaction converting chemical energy to heat and expansion of gases outward from the source.This eventually gives way to a contraction in the other direction, because the expanding gasses must now absorb energy from the surrounding environment, and as they cool, they contract. A cyclic universe.

Either way, it is too far distant to worry about.

As you say, scientists try totally separate God from the equation, but do not succeed.Consider this, for instance:String Theory;All matter is created by vibrating strings,the type of matter depending on "frequency" of vibration.

Compare to this paraphrased biblical quote:"Man does not live by bread alone, but by every word that proceedeth out of the mouth of God."

Perhaps "strings" are the vocal cords of God.

Food for thought,eh?

HTRN

I am not sure of the relevance of black hole theory to the big bang. It is comforting to think of the big bang in terms of the physics of a black hole because both share a singularity and we know some things about a black hole, but I think that's where it ends.

We only have a small amount of data about the big bang and can more or less reliably extrapolate backwards only to a point in time, but beyond that point it is speculation. I find that speculation interesting, but it is important to remember that it is simply speculation and not established scientific fact.

Perhaps not answers, but things to consider: 1. You are likening something, probably beyond a plasma as we know it, to a gas. 2. There should have been a ratio of hydrogen and helium produced, not just hydrogen. Plus, there likely were no "gases" ,as we know them, during the initial expansion from the Big Bang (BB), but only atomic particles or even just energy and what became quarks, which later formed atomic particles and then atomic nuclei and finally atoms and gas. 3. How do you account for the significant increase in temperature of the sun's outer corona, which is an expanding "gas", and so much hotter than the surface of the sun, from which the expanding envelope came, if any "gas" which is expanding cools down? Is the corona being supoerheated by the sun's magnetic fields? A super-sized microwave oven perhaps? How much energy was there present in the initial BB? What did the physical matter from the BB expand into? Were microscopic black holes initially created, which fed on matter in the early Universe, and finally, perhaps, as the BHs grew, caused the collapse of gigantic gas and dust clouds to form galaxies, then fed on the compact center of the new galaxies? What is the relationship between supermassive black holes and dark matter or dark energy? Hmmm.

I am niot likening the BB to a gas only, but to every time matter changes from a lower to higher state, or vice-versa.There is latent heat absorbed or shed.As for the outer layers of the sun being hotter, yes, it is now known to be caused by magnetic currents,a gigantic arc furnace of sorts.Compare the material,for want of a better word, not matter, not energy, not yet, to ice, a solid form of a well know substance,water.Ice and water can both exist at 0 degrees C.To convert the water to ice, a certain number of BTU's must be removed from the water.This energy removal does not make the water any colder, it simply is nescessary to change from a liquid to a solid state.The exact same amount of energy must be added to re-melt the ice to a liquid state.Same appies to water and steam, and any other known materials when changing from one state to another.IF the BB was a "frozen" state of everything that exists today, it had to absorb a lot of energy from somewhere to expand,or alot of energy was "injected" into the system to cause instability.This is of course, assuming that before the BB, the Singularity was stable for some period of time; it had to be, or the singularity could not have formed.Perhaps the universe is cyclical, and the singularity is stable until it reaches critical mass,when the last far-flung photon is finally sucked into the ultimate black hole, and the system becomes unbalanced, and explodes,and starts all over again. Or not.

As you say, it is all speculation.There is a challenging discovery that may change black hole theory.It is called an EMECO, a black-hole-mass object with a magnetic field.

Who knows what discoveries tomorrow will bring.

HTRN

Seems the universe was extremely hot for an extremely short time, after which it began to cool rapidly, and matter as we know it condensed due to this cooling.

Check out this site:

http://www.sciencedaily.com/releases/2011/06/110623141318.htm