Could life survive inside a black hole?

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Elimentals

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We are in one. What we see as the big bang is actually this universe looking at the event horizon.
 
mercurial

mercurial

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We can't be in a black hole. Everything that enters a black hole gets ripped to shreds.
 
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Elimentals

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mercurial said:
We can't be in a black hole. Everything that enters a black hole gets ripped to shreds.
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Thats what happens when you get closer to the event-horizon. Thats why we see close to the big bang as the Planck epoch. Because the matter that crossed over got ripped apart.
 
mercurial

mercurial

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Elimentals said:
Thats what happens when you get closer to the event-horizon. Thats why we see close to the big bang as the Planck epoch. Because the matter that crossed over got ripped apart.
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How is it that you think we can be in a black hole if matter that enters the event horizon gets ripped to shreds? BTW, this is something I thought about previously.
 
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Kompete

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Elimentals said:
We are in one. What we see as the big bang is actually this universe looking at the event horizon.
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No - we are on the otherside of a blackhole. The guys living in the blackhole are looking at 'whiteholes' and wondering WTF - knowing that if something enters it will experience the great rip aka big bang (which is what we have been experiencing the last odd 14bn years
 
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demon angel

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A very interesting thread.

I may not be Stephen Hawkins and science may not be able to confirm with absolute certainty the many theories, but based on many hours of Discovery channel and the History channels the universe and Internet research, i would like to think that nothing could survive a black hole.

Light cannot even escape it and i truly doubt it would bend the fabric of time and teleport you into another dimension due to the ungodly and absolutely infinite overkill deadly pressure from the black hole.

The only thing that could survive a black hole would be a bigger black hole or a bigger sized quasar's constant energy into the blackhole that could perhaps dissolve it.

Though i heard that the more you feed a black hole the bigger it gets.....

*Scratches head*

Heck how could one measure such infinites with certainty when we know so little about the universe.

I would still like some proof on 'dark matter', perhaps that would help explain the weird s*** going on out there.

Love it though!
 
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Elimentals

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demon angel said:
Heck how could one measure such infinites with certainty when we know so little about the universe.

I would still like some proof on 'dark matter', perhaps that would help explain the weird s*** going on out there.

Love it though!
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Dark matter is so last year... new theory is anti matter with anti gravity, instead of attracting it repulses.
 
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Palimino

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Spooner said:
Would be interesting to know but we aren't exactly on the verge of interstellar travel to test this theory on a practical level. I always assumed black holes exert extreme tidal forces which rips any object apart, and the whole theory of relativity implies that time actually slows down, albeit only from an outsiders perspective as time is relative.

I'm no physics student but that's what I was taught in school
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Possible, but it would be a region where the laws of physics (as we know them) don’t apply. This is a reasonable assumption because it is only us (humanity) who, in our arrogance, postulate that the laws, as we know them, apply throughout the universe.

The singularity is located at the heart of a black hole, and is the place where the laws of physics and space-time break down.
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thestaggy

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What kind of temperature does life need to survive?

The thing with a balck hole, and there are many forms of them, is that there are two major models to determine their temperature that all have scientific support. Einstein's older theory says black holes have no temperature, while Hawking's modern theory states that a balck hole's temperature is inversely proportional to it's size. Thus, according to Hawking's theory of radiation, a small micro black hole that is in the process of evaporating emits far greater radiation and thus temperature than a young, large and growing black hole, due to temperature being inversely proportional to size. As an example, if a black hole was the size of a small car and evaporating (micro balck hole), the radiation would be so immense that it would disappear in a nanosecond and burn with a luminosity 200 times that of the sun, indicating a super-heated level of temperature. Conversely, a larger black hole, such as a stellar balck hole, would be cooler than a micro black hole with Hawking's radiation theory predicting that it's temperature could be as much as 100 nano-Kelvins, a temperature so far below freezing that there is no way of accurately measuring it with any modern temperature tools, no matter how sophisticated. MIT in the US is currently developing a thermometer capable of measuring nano-Kelvins though.

So, the question is, what black hole are we dealing with, what size is the black hole, who's theory are you following and can life survive with no temperature, in super heat amidst intense radiation or under super frozen conditions?
 
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Geriatrix

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Updated Theory: "A Hidden Universe Could Exist Inside Every Black Hole"
“Our own Universe may be the interior of a black hole existing in another universe.” In a remarkable paper about the nature of space and the origin of time, Nikodem Poplawski, a physicist at Indiana University, suggests that a small change to the theory of gravity implies that our universe inherited its arrow of time from the black hole in which it was born.

Poplawski proposes that the universe in which the Earth exists may be located within the wormhole of a black hole which itself exists in an even larger universe. A universe could exist 'inside every black hole,' claims scientist

Using an adaptation of Einstein's general theory of relativity, Poplawski analysed the theoretical motion of particles entering a black hole. He concluded that it was possible for a whole new universe to exist inside every black hole, which could mean that our own universe could be inside a black hole as well.

"Maybe the huge black holes at the centre of the Milky Way and other galaxies are bridges to different universes," he told New Scientist.

Explaining his theory in the journal Physics Letters B, he said he used the Einstein-Cartan-Kibble-Sciama (ECKS) theory of gravity, in his analysis to account for the angular momentum of particles in a black hole. Doing this it made it possible to calculate a quality of space-time called torsion, a property believed to repel gravity.

He says instead of matter reaching infinite density in a black hole called "singularities" in Einstein's theory of relativity - the behaviour of the space-time acts more like a spring being compressed with matter rebounding and expanding continuously.

Dr Poplawski explains that this "bounce-back" effect is caused by the torsion of space-time having a repulsive force against the gargantuan strength of gravity in a black hole.

Dr Poplawski also claims that this recoiling effect could be what has led to our expanding universe that we observe today and could explain why our universe is flat, homogeneous and isotropic without needing cosmic inflation.

It is hard to see how we could test whether or not Dr Poplawski's theory is correct; the force of gravity in black holes is such that nothing can escape, so no information about what is going on inside one can ever reach us.

However, according to Dr Poplawski, if we were living in a spinning black hole then the spin would transfer to the space-time inside, meaning the universe would have a preferred direction - something we would be able to measure. Such a preferred direction could be related to the observed imbalance of matter and anti-matter in the universe and could explain the oscillation of neutrinos.

Poplawski says that the idea that black holes are the cosmic mothers of new universes is a natural consequence of a simple new assumption about the nature of spacetime. Poplawski points out that the standard derivation of general relativity takes no account of the intrinsic momentum of spin half particles. However there is another version of the theory, called the Einstein-Cartan-Kibble-Sciama theory of gravity, which does.

This theory predicts that particles with half integer spin should interact, generating a tiny repulsive force called torsion. In ordinary circumstances, torsion is too small to have any effect. But when densities become much higher than those in nuclear matter, it becomes significant. In particular, says Poplawski, torsion prevents the formation of singularities inside a black hole.

Astrophysicists have long known that our universe is so big that it could not have reached its current size given the rate of expansion we see now. Instead, they believe it grew by many orders of magnitude in a fraction of a second after the Big Bang, the period known as known as inflation.

Poplawski's approach immediately solves the inflation problem, saying that torsion caused this rapid inflation, which means the universe as we see it today can be explained by a single theory of gravity without any additional assumptions about inflation.

Another important corollary of Poplawski's approach is that it makes it possible for universes to be born inside the event horizons of certain kinds of black hole where torsion prevents the formation of a singularity but allows energy density to build up, which leads to the creation of particles on a massive scale via pair production followed by the expansion of the new universe.

"Such an expansion is not visible for observers outside the black hole, for whom the horizon's formation and all subsequent processes occur after infinite time," says Poplawski. For this reason, he emphasizes, the new universe is a separate branch of space time and evolves accordingly.

Poplawski's theory also suggests an solution lto why time seems to flow in one direction but not in the other, even though the laws of physics are time symmetric.

Poplawski says the origin of the arrow of time comes from the asymmetry of the flow of matter into the black hole from the mother universe. "The arrow of cosmic time of a universe inside a black hole would then be fixed by the time-asymmetric collapse of matter through the event horizon," he says.

Translated, this means that our universe inherited its arrow of time from its source. "Daughter universes," he says, "may inherit other properties from their mothers," implying that it may be possible to detect these properties, providing an experimental falsifiable proof of his idea.


Casey Kazan via Ref: arxiv.org/abs/1007.0587: Cosmology With Torsion - An Alternative To Cosmic Inflation
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Geriatrix

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mercurial said:
Even though I've always believed that life cannot exist inside a black hole, these are one of the things that have crossed my mind many times before. It's scary that this could actually be true.
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Well life cannot ENTER a black hole, but we have no idea what's in them really.
 
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