Welcome to Smashboards, the world's largest Super Smash Brothers community! Over 250,000 Smash Bros. fans from around the world have come to discuss these great games in over 19 million posts!
You are currently viewing our boards as a visitor. Click here to sign up right now and start on your path in the Smash community!
A black hole forms because the attractive force of gravity beats out all other repulsive forces, causing the matter to collapse in on itself. And the closer they get, the stronger gravity gets, causing a feedback loop which makes the gravity spiral out of control.If spacetime torsion couples to the intrinsic spin of matter according to the Einstein-Cartan-Sciama-Kibble theory of gravity, then the resulting gravitational repulsion at supranuclear densities prevents the formation of singularities in black holes.
Nonsignular means what I described above: no singularities. Bounce should be pretty self explanatory, too. The motion of these particles collapsing on each other do a kind of "bounce".Consequently, the interior of every black hole becomes a new universe that expands from a nonsingular bounce.
Everything up until now was just introduction. Stuff every physicist already knows. "We consider" means "This is what this paper is actually about...".We consider gravitational collapse of fermionic spin-fluid matter with the stiff equation of state in a stellar black hole.
Mass and energy are proportional, think back to E=Mc^2. As the matter collapses in on itself in a black hole, the potential energy of the matter decreases. Which (by conservation) causes an increase in mass.Such a collapse increases the mass of the matter, which occurs through the Parker-Zel'dovich-Starobinskii quantum particle production in strong, anisotropic gravitational fields.
Pair annihilation refers to when particles and antiparticles collide and turn into pure energy. Which itself can also be viewed not as two particles colliding and annihilating, but rather one single particle moving in a timelike loop.The subsequent pair annihilation changes the stiff matter into an ultrarelativistic fluid.
The following is the actual conclusion of the paper:We show that
They show that the mass of the new universe is BLAH. That big ugly mess of an equation which just simply says how much mass is there.the universe in a black hole of mass MBH at the bounce has a mass Mb ∼ MBH^2 mn^(.5) /mPl^(1.5) where Mn is the mass of a neutron and mPl is the reduced Planck mass.
This is relevant because look at those numbers! For an average black hole (typical stellar black hole) the mass of the new universe inside it is actually greater than the mass of our universe. So the new baby universe is actually bigger than ours.For a typical stellar black hole, Mb is about 10^{32} solar masses, which is 10^6 larger than the mass of our Universe.
But as the black hole expands again, the whole thing dissipates. And the baby universe disappears.As the relativistic black-hole universe expands, its mass decreases until the universe becomes dominated by nonrelativistic heavy particles.
I thought this was shown to be mistaken due to Hawking radiation, no?Now, once inside the black hole, you cannot ever leave.
"Much longer" is a big of an understatement!Wikipedia said:For a black hole of one solar mass, we get an evaporation time of 2.098 × 10^67 years - much longer than the current age of the universe at 13.73 ± 0.12 x 10^9 years.
Thanks, this explains a lot.Hawking radiation is different. There is still nothing that escapes from going beyond the event horizon of a black hole. Hawking radiation is when a virtual pair of particles appear on the edge of the event horizon, but one crosses the event horizon, while the other manages to stay outside of it, which causes a weird issue. Normally, virtual pairs of particles leave no net change in energy, but now one of the has been sucked inside, and the other hasn't. What this means, essentially, is that the black hole has absorbed a "negative" unit of energy in the form of the one virtual particle it absorbed, and has radiated away the energy in the form of the other virtual particle.
This is another curiosity that I have had. What would it look like inside of a black hole? Wouldn't it not be black since it is constantly "sucking" in light? However, I doubt that it would be intelligible what the visual inputs were before because they would probably be warped beyond recognition. Would it just be streaks of colors, that is, assuming that our eyes magically were unaffected by it?However, there is one hitch. You realize that once inside a black hole, you will lose all visual feedback, it will be impossible to see anything at all.
hormones are released, iirc. not sure where they come from or where they go though.Ok I have a totes random and unrelated question.
When someone is feeling, agitated, tense, hyper etc. (pretty much everything you feel when sexually frustrated, but that's not why I'm asking) how does our biology differ? Basically I'm asking what's different in the body that makes us feel that way.
I'm glad you enjoyed them! I find black holes (and most astronomical phenomena) very interesting, so I always try to read up and watch up on them as I can.BTW awesome links, Reaver! I followed through onto other vids and the one about the super-sized black hole at the center of the galaxy (and apparently most if not all other galaxies) is fascinating.
Go look up Aiser, seriously go look up that name and tell me you didn't laugh at the **** I use to pull.I love how gamers talk about infractions.
They always make out as if they enjoy getting them, as if they pride themselves on getting them, or if getting infractions are an equivalent to battle scars, as if it's a right of passage or something like that.
Heh. Unfortunately, I don't name search, and even if I did I'm asleep at that time of morning. XDpaging nicholas to the ntsc melee tier list thread, over
if he does get involved this might be the most amusing thing to watch in years.
I actually think they deleted alot of old stuff, so you'll see my post prime trolling. You will miss such gems of my comparison of the roy boards and marth boards being comparable to evengalical thought to the scientific method.Will do.
I'll check it out later today (it's 3 am here).
I better be impressed or else....there will be no consequence to you.
CNN said:In September, Greece announces that its gross domestic product since 2000 has been revised upward by an unheard-of 25 percent. The secret to its newfound wealth?
A change in bookkeeping that adds in the nation's robust black-market industries such as prostitution and money laundering. But becoming "richer" turns out not to be as good as it sounds: The revised GDP figures cost the Greek government as much as $600 million annually in European Union funds earmarked to help poorer nations.
I use to like it, but I find it works better for politics. Left Vs Right Libertarian vs Totalitarian.I've never been a fan of that scale. Sure you can take ANY two axes and put the up against one another, but it doesn't necessarily impart any new meaning.
Gnosticism and Theism are just fundamentally different. I forget who said it, but there is a quote I like that says:
"Agnosticism and atheism are answers to different questions. If someone asks you 'is there a god', you might answer 'I don't know'. But if someone asks you 'Do you believe in a god', that's a yes or no question."
It's only a waste of time because its false. If it were true, then the consequences of ignoring the edicts would be worth considering.Aesir said:Frankly I feel the whole question in it's self is a waste of time, you have 70 some odd years to live why waste time thinking about it?