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Author Topic: Is the Universe destined to grow, then shrink again?  (Read 2192 times)

Offline malfery

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I am no scientist
im pretty good at visualising thoughts and i have been imagining that.
What if the universe is actualy growing in its own way.
collecting mass then get to a critical point till it collapses in itself creating a black hole sucking in mass from surrounding areas.
then ejecting it in huge energy burst and starts over depending where the energy/matter gets bursted to.
creating new galaxy's new blackholes wich in turn burst energy again and creating new galaxys and such.
And keeps on growing, then when galaxys grow big enough and black holes start colliding and merging with eachother.
The burst from the black hole grow bigger and bigger in sense collecting galaxys and such.
Until u reach a force similar to what we call a big bang,but actualy is just a black hole so big its ejecting the amount of mass.
We calculated the big bang released, and what we call is the whole universe is actualy just one part of a even bigger universe.
Where more such events happen and these "mega bing bang like" black holes" are more of.
You could say how  "seeds" "black holes from a dieing star" when multiple black holes start colliding.
You then create a "body" that in turn  collides and merges with other bigger galaxy eating black holes.
So a body eaten by a bigger body and so on till you got a something as the size of a  "big bang like black hole" .
« Last Edit: 19/06/2015 10:41:06 by chris »


 

Offline PmbPhy

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Re: would like to hear people thoughts on this.
« Reply #1 on: 19/06/2015 10:36:33 »
I am no scientist
im pretty good at visualising thoughts and i have been imagining that.
What if the universe is actualy growing in its own way.
collecting mass then get to a critical point till it collapses in itself creating a black hole sucking in mass from surrounding areas.
then ejecting it in huge energy burst and starts over depending where the energy/matter gets bursted to.
creating new galaxy's new blackholes wich in turn burst energy again and creating new galaxys and such.
And keeps on growing, then when galaxys grow big enough and black holes start colliding and merging with eachother.
The burst from the black hole grow bigger and bigger in sense collecting galaxys and such.
Until u reach a force similar to what we call a big bang,but actualy is just a black hole so big its ejecting the amount of mass.
We calculated the big bang released, and what we call is the whole universe is actualy just one part of a even bigger universe.
Where more such events happen and these "mega bing bang like" black holes" are more of.
You could say how  "seeds" "black holes from a dieing star" when multiple black holes start colliding.
You then create a "body" that in turn  collides and merges with other bigger galaxy eating black holes.
So a body eaten by a bigger body and so on till you got a something as the size of a  "big bang like black hole" .
You posted this in the wrong forum. It belongs in the New Theory forum.

See http://math.ucr.edu/home/baez/physics/Relativity/BlackHoles/universe.html

There are two articles on this subject in the American Journal of Physics. They are

The universe as a black hole by Ira M. Freeman, Am. J. Phys. 43, 644 (1975)

The observable universe inside a black hole by W. M. Stuckey, Am. J. Phys. 62, 788 (1994);
http://scitation.aip.org/content/aapt/journal/ajp/62/9/10.1119/1.17460
Quote
Abstract

A Schwarzschild radial coordinate R is presented for the Friedmann dust‐filled cosmology models. It is shown that a worldline of constant Schwarzschild radial coordinate in the dust‐filled universe is instantaneously null at Rn =2GM/c2, where M is the Schwarzschild mass inside the sphere R=R n . It is also shown that M p =3τc 3/4G, where M p  is the proper mass inside R = Rn   and T is the age of the universe. The Rn =2GM/c2 result in Friedmann dust‐filled cosmology is made physically significant by abandoning the cosmological principle and adjoining segments of Friedmann dust to segments of Schwarzschild vacuum. In the resulting cosmology model, the observable universe may lie inside a black or white hole.

I have copies of these articles if you'd like me to e-mail copies of them to you or make them available on my website temporarily?
 

Offline alancalverd

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Re: Is the Universe destined to grow, then shrink again?
« Reply #2 on: 19/06/2015 17:34:18 »
Pete: with moderator hat on, I wouldn't necessarily consign this to New Theories as it reflects a fairly old idea (I recall discussing it over dinner about 50 years ago with a friend who went on to become a professor of astronomy) of an oscillating universe.

Let's see if it attracts sensible comment (such as yours) or poppycock.
 

Offline PmbPhy

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Re: Is the Universe destined to grow, then shrink again?
« Reply #3 on: 19/06/2015 18:54:20 »
Quote from: alancalverd
Pete: with moderator hat on, I wouldn't necessarily consign this to New Theories as it reflects a fairly old idea (I recall discussing it over dinner about 50 years ago with a friend who went on to become a professor of astronomy) of an oscillating universe.

Let's see if it attracts sensible comment (such as yours) or poppycock.

Alan - Thanks for your comments. However I'm not sure that we have the same thing in mind. Recall what he wrote:
Quote from: malfery
... What if the universe is actualy growing in its own way. collecting mass then get to a critical point till it collapses in itself creating a black hole sucking in mass from surrounding areas. then ejecting it in huge energy burst and starts over depending where the energy/matter gets bursted to. creating new galaxy's new blackholes wich in turn burst energy again and creating new galaxys and such.
This does not reflect an old idea. According to the laws of physics as they are today black holes can't explode. That's one of the reasons why I suggested that it go into the New Theories subforum.

Then he goes on to say
Quote from: malfery
...And keeps on growing, then when galaxys grow big enough and black holes start colliding and merging with eachother.
The burst from the black hole grow bigger and bigger in sense collecting galaxys and such.
Until u reach a force similar to what we call a big bang,but actualy is just a black hole so big its ejecting the amount of mass.
Again breaking the laws of physics as we know them today. Hence the reason for it to go into the New Theories subforum.

He finishes with
Quote from: malfery
We calculated the big bang released, and what we call is the whole universe is actualy just one part of a even bigger universe.
Where more such events happen and these "mega bing bang like" black holes" are more of.
You could say how  "seeds" "black holes from a dieing star" when multiple black holes start colliding.
You then create a "body" that in turn  collides and merges with other bigger galaxy eating black holes.
So a body eaten by a bigger body and so on till you got a something as the size of a  "big bang like black hole" .
which is yet another theory which goes against the laws of physics as we know them today and why it should go into the New Theory subforum.

I'm not saying that all of this is impossible but it's a new theory and hence it goes into the New Theory subforum.
 

Online jeffreyH

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Re: Is the Universe destined to grow, then shrink again?
« Reply #4 on: 20/06/2015 01:45:35 »
There is a theory, don't ask me the source off-hand, that as soon as a black hole collapses to a critical density then it converts to a white hole. Because of time dilation the white hole eject its mass over such long timescales that the universe will experience heat death before it becomes apparent. This means that it will never appear to be a white whole to any observers.
 

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Re: Is the Universe destined to grow, then shrink again?
« Reply #4 on: 20/06/2015 01:45:35 »

 

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