What do you think is in the middle of a black hole?

[JamesG]

The Congressional Budget.

LOL

Even the universe has finite mass.

Not necessarily. And, from our perspective, it is probably effectively infinite (expanding faster than light, or faster than we could travel. So you could never get to the "edge" of it before the "end of time".

I sleep soundly at night by believing the laws of mass and energy under such a great amount of crushing force are vastly different than what we currently understand.

Just remember there is only a thin layer of air between everything you know and the hostile weirdness of the rest of the Universe.

 

[RdKill]

I was going to guess a cervix but apparently y'all are talking about something else.

 

[wsbrown]

Interesting article here somewhat related to the OP's subject. I found it researching what bearing a black hole's environment could have on bosons as that could in turn affect the mass/density of the particles in the singularity.

http://www.news.com.au/technology/s...-entire-universe/story-fn5fsgyc-1227050890169

What was interesting to note was China's interest in large particle accelerators, there seems to be a new "space race" between the super powers for accelerators. I wonder what theoretical/technological motives are behind this that the general population doesn't know about.

 

[mkdhotrod]

Interesting article here somewhat related to the OP's subject. I found it researching what bearing a black hole's environment could have on bosons as that could in turn affect the mass/density of the particles in the singularity.

http://www.news.com.au/technology/s...-entire-universe/story-fn5fsgyc-1227050890169

What was interesting to note was China's interest in large particle accelerators, there seems to be a new "space race" between the super powers for accelerators. I wonder what theoretical/technological motives are behind this that the general population doesn't know about.

Complete periodic tables of Anti-Elements are an interesting thing..
http://www.theguardian.com/science/2011/apr/24/antihelium-antimatter-brookhaven

gives way to anti-galaxies, anti-elements, anti-compounds etc.. just dont get too close with regular matter.. might be a big sudden annihilation wonder if we could power a nuclear plant with anti-particles, and loose all the radioactive waste we produce and cannot do anything with

 

[wsbrown]

Complete periodic tables of Anti-Elements are an interesting thing..
http://www.theguardian.com/science/2011/apr/24/antihelium-antimatter-brookhaven

gives way to anti-galaxies, anti-elements, anti-compounds etc.. just dont get too close with regular matter.. might be a big sudden annihilation wonder if we could power a nuclear plant with anti-particles, and loose all the radioactive waste we produce and cannot do anything with

Could be an alternative to fusion which seems to be developing slowly.

 

[chopper duke]

The middle of a black hole is the singularity, or, all of the matter compressed to a single point. The radius between it and the Event Horizon (point of no return) is the Schwarzschild Radius on non-rotational black holes. The formula for this is RS=2GM/ C2. For the earth to be a black hole, it would have to fit it's mass of 6.0 × 1024 kg within 8.7mm.


Anyway, the heart of the black hole is the singularity. Everything within the event horizon is irreversibly drawn towards this point where the curvature of spacetime becomes infinite and gravity is infinitely strong. An interesting dilemma for astrophysicists is that the physical conditions near a singularity result in the complete breakdown of the laws of physics. Yet there is nothing in the theory of general relativity that stops isolated, or naked, singularities from existing. To avoid the situation where we could actually see this breakdown of physics occur, the Cosmic Censorship Conjecture was proposed. This states that every singularity must have an event horizon which hides it from view, exactly what we find for black holes.


What's the Cosmic Censorship Conjecture you ask? Well, given high enough densities, Einstein’s theory of general relativity predicts that matter can suffer a cataclysmic collapse to a point-like region where both thedensityof matter and the curvature of spacetime diverge (tend towards infinite values). This is referred to as asingularity, and also describes the formation of ablack hole.

In the case of a black hole, the singularity is hidden from view by anevent horizon, but there is nothing in general relativity that says that this hasto be the case. In other words, general relativity does not preclude the existence of naked singularities. This is very disturbing on both theoretical and observational grounds, as physical conditions become increasingly extreme, and ultimately the laws of physics break down entirely, as one approaches a singularity.

To avoid this situation, in the late 1960s Roger Penrose proposed that there be some physical principle, as yet not understood, that excludes naked singularities as solutions to the equations of general relativity. In other words, every singularity must possess an event horizon that hides the singularity from view.

 

[JamesG]

Oh damn, he brought the maths...

What was interesting to note was China's interest in large particle accelerators, there seems to be a new "space race" between the super powers for accelerators. I wonder what theoretical/technological motives are behind this that the general population doesn't know about.

Accelerator envy. The Chinese are loaded with cash, both from imports and from domestic central bank/gov. stimulus and QE printing. They are throwing money at all sorts of investments from an advanced military, to (as yet) unoccupied cities, to science and technology. Their guide is what the West is doing so, their sending robots to the Moon and building science experiments and instruments just that much bigger than "us". I doubt there is even a pragmatic practical or scientific reason. Its just politics.

 

[JamesG]

In the case of a black hole, the singularity is hidden from view by anevent horizon, but there is nothing in general relativity that says that this hasto be the case. In other words, general relativity does not preclude the existence of naked singularities.

That is because the event horizon is not a direct property of GR but an side effect because of the BH's escape velocity exceeding the SOL. Typical astrophysicist over-think. A "naked" visible singularity would need to have its gravity "switched off". Which... would be interesting to watch... from a very VERY far distance.

In order to be able to view an actual "live" singularity, you need something that is unaffected by gravity and maybe spacetime distortion (although that would provide quite a bit of information). Neutrinos perhaps?

 

[RexProcer]

Aww yea, full nerd time. Let's think about this logically. A black hole is basically a huge amount of gravity. We know that gravity can do a great many things. Keep us firmly planted on the ground while walking, keep planets in their proper places....and do to space-time what Michael did to basketball goals; destroy. Figuratively, of course in our context. What if, inside a black hole, is a warping of space-time so intense that it takes you to another galaxy, place in time, etc. Unlikely, but it's not as ridiculous as it sounds. The fact is, we KNOW, or as close to know as we can, what happens once you cross the event horizon. Time travel.

Say, for instance, YOU were to jump into a black hole. Well, you'd die, of course, but more than that, you'd appear to be frozen in time to someone from the outside looking in. If you jumped in feet first, your feet would be moving FORWARD in time while the rest of your body would be moving at a normal pace. In essence, you'd become a string bean. Still dead, but a string bean nonetheless.

So, what do I think is in the middle of a black hole? Hard to say, because in all likelihood we'll never know, or if we do you and I will be long dead. So maybe a black hole is a white hole in another universe, creating and destroying. Unlikely too, of course, but still. The MOST likely thing to be in a black hole, at least according to modern science, is nothing. Yea, yea matter can't be created or destroyed, I get it. Fact is, black holes have laws of physics that don't apply to the rest of the universe. Anyway, done rambling. I love talking about this stuff .

 

[JamesG]

Time travel.

Not really. At least not in the, "get in your time machine, select a date, push a button, and poof! there you are" sense. What happens is your relative rate of time changes, slows to a crawl, most likely, compared to other reference frames. So your clock would very nearly stop (but not completely), and the perception you would have is that everything else suddenly went into fast forward, but you were never "out" of time. Then you would die. lol

Also it doesn't take you to another universe, UNLESS, that universe is contained within that singularity point (because ST has gotten so twisted it has ballooned back to the infinite). If you could back out of this newly discovered universe (why not, since you survived the trip in), you would find yourself right back where you started. Perhaps the "Univeres" is a collection of nested BHs, a "Russian doll" of universi...