The Beginning.

What is everybodies views on the beginning of the universe, and has there been any proof of the Big Bang?:m:

 

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The CBR is considered as a proved assumption. In otherwords, it was predicted that it should be there before it was discovered. This is what is called testable science. Theory based predictions that are later discovered to be there.

The fact that CBR was discovered lends ever more weight to the BB theory. I suspect that in the future that there will be more discoveries that tend to support this.

 

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CBR? sorry im only 16.

Could you explain what CBR is? I'm sorry i dont know much, im only 16.:m:

 

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i think the universe has probably always been here, and always will. No beginning and end. Possibly it expands, contracts, expands, et cetera, ad infinitum...

 

BIG BANG

Right on.. contracts to such a pressure that it explodes... expands losing speed ... stops and gravity pulls it back... INFINITY..

 

Something I forgot to do is to welcome you to sciforums, metal722.



CBR

Additional Info

 

Thank you wet1.

hmmm.. always there...

 

Sadly, only 33% of American adults believe in the Big Bang theory. That's even worse than it is for evolution. There is so much evidence in support of the theory I fail to understand how ignorance continues to prevail at such an alarming rate.

 

Helloworld,
Whats the evidence?
What is CBR?


Sorry to be of subject but is a vacuum considered absolute nothingness?

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metal,

I believe CBR is cosmic background radiation (or cosmic microwave background). If I'm not mistaken, the general idea is that the universe is cooling down. This would imply that a grand "bang" must have taken place, else there would be no heat, thus no cooling down. That is what the cosmic background radition proves, that this cooling down is actually occuring. http://www.nature.com/nsu/001221/001221-8.html This is a very interesting article, it should explain a few things.

This is also worth reading for a more general overview of the theory and its supporting evidence: http://www.umich.edu/~gs265/bigbang.htm

 

That I unfortunately don't know.

 

vacuum

vacuum, theoretically, space without matter in it. A perfect vacuum has never been obtained; the best man-made vacuums contain less than 100,000 gas molecules per cc, compared to about 30 billion billion (30×1018) molecules for air at sea level. The most nearly perfect vacuum exists in intergalactic space, where it is estimated that on the average there is less than one molecule per cubic meter. In ancient times the belief that “nature abhors a vacuum” was held widely and persisted without serious question until the late 16th and early 17th cent., when the experimental observations of Galileo and the Italian physicist Evangelista Torricelli demonstrated its essential fallacy. Torricelli obtained a nearly perfect vacuum (Torricellian vacuum) in his mercury barometer. A common but incorrect belief is that a vacuum causes “suction.” Actually the apparent suction caused by a vacuum is the pressure of the atmosphere tending to rush in and fill the unoccupied space. There are various methods for producing a vacuum, and several different kinds of vacuum pumps. have been devised for removing the molecules of gas or vapor from a confined space. In the rotary oil-sealed pump a rotor turning in a cylinder allows gas to enter through an inlet valve from a space to be evacuated and then pushes it through an outlet valve into the atmosphere. In the oil or mercury diffusion pump, gas enters the pump through an inlet and is then swept toward an outlet by heavy, fast-moving oil or mercury vapor molecules. The outlet is connected to a rotary pump that expels the gas into the atmosphere. A cryogenic pump removes gas from a container by condensing the gas molecules on an extremely cold surface in the container. An ion pump consists of a chamber containing a source of electrons that are used to bombard gas molecules from a container to be evacuated. Collisions between the electrons and gas molecules ionize the molecules, causing them to be drawn to, and held by, a collector in the pump. The first vacuum pump was invented by the German physicist Otto von Guerricke in 1650. There are many practical applications of vacuums in industry and scientific research, e.g., in vacuum distillation, vacuum processing of food, in devices such as the vacuum tube, vacuum bottle, and barometer, and in research machines.

 

Welcome Metal722!

(finally, another 16 year old! We shall be the evil minion of 16!) Uh huh heh heh...must get off the :m: now.

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I believe the universe was created by God. The End.

And I will leave it up to you to scan that for sarcasm.

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-Blue :m:

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P.S. I've always thought CBR stood for Case-Based Reasoning. Or Central Board of Revenue, in Pakistan. That kind of threw me off there, heh heh.

 

So space without matter, a vacuum, would be nothing.

Lets go back to before the universe was created (saying that the universe hasnt always been). There would be absolute nothingness, or a perfect vacum. Now could this perfect vacuum somehow contort in some crazy mathematical equation. If this could happen couldnt the contortion lead to an explosion of matter? Or could the vacuum reverse from nothing into matter and start the universe.

That might sound stupid. If it is then I blame it on me just being 16.

 

Hey %BlueSoulRobot%.
I see you like the :m: too?
Back to science.

 

No, a vacuum is the space without matter in it. It still is the same space. There's not a "non-existence" as you're thinking. There's just a lack of atoms in a given area.

 

Oui. I adopted it upon its birth. Unfortunately, I wasn't the one to think of it.

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But, no matter. I still like it.

(*grins at badly constructed pun about "no matter" and vacuums)

Yes, back to science indeed. About vacuums...as far as scientists are concerned, vacuums are just volumes of space which contain no matter. Which leads to the question, "Well, Mr. Smarty-Pants, how would you measure or even identify a vacuum, because it's not even there? How do you measure the innumerable nothingness?" Therefore, there is no such thing as a perfect vacuum. The ones that we do have can be calculated, though. By measuring the distances between atoms/molecules that make it up, you can determine whether it's a vacuum or not. For example, there are no vacuums right here on earth, because the atoms are close together.
Oh look, another question from Billy: "But, but, you can't see "nothing", much less know where it is!" Why Billy, I'm glad you've asked that question. Truth is, you can see vacuums, especially when stars go nova. There's a thin vacuum that spreads out from the explosion, in ripple form as a shockwave. Pretty nifty, eh Billy?

Leading us into the Big Bang Theory. I'm guessing that yes, when matter gets spread a little too thin, when we finally achieve the perfect vacuum, then wham-o! You've got collapse, sucking everything in and condensing condensing condensing until it can't take it anymore and KaPOWza! You've got the Big Bang. Again? Possibly. Maybe it's a neverending cycle, you never know.

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actually there is no such thing as a vaccum. like zero it is only a theoretical creation.

quantum mechanics predicts that even if it is possible to remove all the matter out of a certain region of space things called quantum fluctuations will cause particles to appear out of nowhere in that space. it sounds weird but its true and well documented you can look it up. this does not violate any energy conservation laws because the particles appear along with their antiparticles making a net energy gain of zero.

sounds like i'm speaking from my ass but this is a very well accepted fact

 

well, I believe some prominent current theories revolve around quantum foam and the great expansion or "inflationary" period. pretty interesting stuff. I read in this month's scientific american that this french chick may have determined (or at least has a good idea) of how these events create space from nothingness.

 

I consider myself paradoxal, since I believe in the Big Bang more than I do Darwinian Evolution. The Big Bang at least, was a fresh idea.

BTW - I think Hoover makes the best vaccumes.