Why are we looking for gravity to make the universe collapse?

Question

Do we really need gravity to make the universe collapse again.
How about this.
what if beyond the universe there is that force which has a tendency to try and push against our universe ,a force all round our universe that puts pressure on it to try and force it back where it came from.
example let air out of a balloon it will collapse.
due to the pressure outside.
same principle could apply to our universe.

because its only just started speeding up but will evenually slow down then that force will push it back to how it was.

Is it not possible that that force that lies beyond our universe does not like our universe being there and will try and force our universe out of existance.
back to the big bang state.

Has my Iq just suddenly dropped or what I said that the universe was only starting to speed up due to its very young age..its just started to expand.
we all assume that it is middle aged or something it could be that it has just been born

gdc3.rocks I think you mean our galaxy when u said 100,000 years at c speed.

Answer 1

It's useless to answer such a question to somebody who will not understand the question. I know that because of the kind the question is asked.

Answer 2

The Is Nothing Outside the Universe, Unless Something Like A Parralel Univerese. But What Your Saying Has Something On It, Maybe Something At The Edge Of The Universe Is Sucking Us In, Slowly, Maybe A Few Billion Years, But You Get What Im Saying, And Maybe Somewhere Out There Their is Something Faster Than Light, An Unxplainable Force? Pretty Perplexing. The Universe Has An End? Its Estimated That To Travel Across The Universe At The Speed Of Light Would Take 100,000 Years. So Its Pretty Huge. I Wonder What We Will Find Out There, Maybe Another Planet With Humans??? More Evolved Than Us? It Will Be Found And I Can't Wait, Not In A Geeky But In A Nice Way.

Hope This Helps

Answer 3

This dilemma that you refered to has been pondered by Cosmologists. The status quo is the attempt by science to determine both the past history as well as the future of the Universe. There is no evidence that the Universe will be subject to the Big Gravitational Crunch,nor is there an infinite expansion of the Universe into space that would bring it to nothing.
It is futile to allude to gravity behavioral phenomena of the Universe when Astrophysisits and Cosmologistst have never identified a mechanisms that describes the cause of Gravity. All we are told is that Gravity is a pull.However no one has ever identified what is inside a mass structure that does the pulling.

Hence if there is no understanding yet how gravity is caused in the Substance of space ,then there is no way to decipher the mysteries of Creation that are associated with the Gravitational phenomena. Presently we are theoretically being presented with Pseudo science. That means those who think they know it dont really know it.
Perhaps if we introspect the Creation of the Universe in a more simplistic way ,maybe we might find the Answer to this dilemma.
Presntly I am not too keen to believe that the Universe will experience a Big Crunch or a Big bang where the mass density of the Universe will dwindle to oblivion due to the so called observed expansion,

Answer 4

I won't comment on your force conjecture. What I will say is that there are two possibilities for the fate of the universe. In a "closed universe" the force of gravity is great enough to halt the expansion and eventually pull everything back into a "big crunch" ( if the system then starts again its called the "oscillating universe". In an "open universe" model, the gravity isn't strong enough and the universe continues to expand forever: cooling, the stars going dark one by one, and eventually all matter disolving into a subatomic cloud, trillions of years from now There was a great article on this in Scientific American about 10 years ago.

Answer 5

If you want to talk science, you need some evidence or facts before you hypothesize or dream up improbable scenarios. A balloon collapses because of atmospheric pressure. What do you propose as a source of pressure on the outside of the universe? Do you have any evidence that there is any such pressure?

And I don't think scientists are looking for the universe to collapse under the force of gravity any more. It was once thought that this might happen but that was before current evidence that the universe is expanding ever faster instead of slowing down under the influence of gravity.

Answer 6

I really have no idea what you're talking about.

Firstly, there is no "outside" the universe - it is by definition, everything.

Secondly, why would this "force" not already be pushing against us? Is it biding it's time, or haven't we reached it yet.

Sorry, total nonsense.

Although, having said that, many scientists believe that there'll one day be a "big crunch" when the universe contracts down again - possibly to start all over again.

So, in essence what you say could be correct, but I think the idea of an external force causing it is a bit daft.

Answer 7

If there does exist such a force then why is the Universe not slowing down ? Ever since the big bang the rate of expansion has been more or less constant.

And anyway that "force" is within the Universe. Its called Dark Energy.

Answer 8

Small, I did have a similar question in R/S columns some twelve months back, and what i at last understood from the solutions that I gained is this: There are relatively 2 motives for this phenomena. the 1st is that the Universe itself expands. It does not boost IN to the rest. the different clarification is the two engrossing. in case you blow up a soccer in a large bowl of water on a similar time as conserving it submerged in water each and every of the time that the soccer is being blown up, it may of course displace and alter the water point. that is as a results of fact the soccer is blowing out (aka increasing) in water. Water being count, gets displaced and leads to to a transformation in the water point. in spite of the fact that, regarding the enlargement of the Universe, that is declared to boost in area. area isn't count. area does not present day any features of count. for this reason, while the Universe expands, and because it expands in area and because area isn't count or is non-count, the Universe displaces no longer something. It keeps increasing and increasing each and every of the time and hence it does not crumple because it does not conflict with any count that opposes that is enlargement. I would be heavily following the reaction you get on your question out of your contacts, with activity.

Answer 9

By definition, the concept of "universe" does not allow for the possibility of anything "outside" the universe. The universe has a fixed size, but there is nothing beyond the universe -- the universe is ALL THERE IS by definition.

Answer 10

For that theory to be possible, than it would mean that their is an "outside the Universe". Anything is possible