Whats the exact physics for how a black hole forms?

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TroonsDid911

TroonsDid911

kiwifarms.net
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Apr 6, 2021
All the youtube videos just say "its because gravity squishes matter into such a small space it creates a black hole" but I want to know a bit more details as to how exactly the condensing of matter causes the laws of physics to be broken.

I was watching one youtube video that was very complicated and clearly designed for an actual physicist and he was going through all of the exact math. I couldn't grasp everything he was saying but I think he mentioned something about matter being squished so tightly it exceeds the Planck length(the universal constant for the smallest possible length in the universe).

Could someone with more knowledge dumb it down a bit for me? Bonus points if you include the word nigger in your answer.
 
Solution
Penis Drager 2.0
Balck holes form when the mass of an object of given radius exceeds the point where the Schwarzchild Radius exceeds the object's radius. The equation for a non-rotating, body without electric charge is as follows:
Schwartz.PNG
In other words: The radius at which a given body would become a black hole can be calculated by taking its mass (in kg), multiplying it by the gravitational constant, multiplying that product by 2, and then dividing that by the square of the "speed of light."
If you'd like a derivation as to why: fuck you, read this.
The long and short is that light cannot escape a body which is sufficiently massive and contained within a sufficiently small radius. You can basically think of every object having...
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In animals at least as complex as an earthworm, a dent forms in one side of the early, spheroidal embryo. This dent, the blastopore, deepens to become the archenteron, the first phase in the growth of the gut. In deuterostomes, the original dent becomes the anus, while the gut eventually tunnels through the embryo until it reaches the other side, forming an opening that becomes the mouth.
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I'm far from an expert, but here's my general understanding:

In a normal, "healthy" star, the inward force of gravity is balanced out by the energy produced from nuclear fusion in the star's core. However, once the star's core is mostly iron, the balance of energy release to energy input is skewed, meaning the energy release of fusion cannot counteract the force of gravity. This causes the star's mass to collapse in on itself until some new force is able to provide the equilibrium again. "Smaller" stars collapse into white dwarfs, while larger and more metallic stars undergo a supernova (a period of rapid fusion of heavier elements followed by an explosion of mass) and become a neutron star. In some larger stars, there is no new force to counteract the force of gravity as the core collapses, the resulting collapse of gravity forms a singularity which becomes a nigger hole.

That's my basic and probably deeply flawed understanding. I know there's a few users here who understand astrophysics to a far greater degree than I.
 
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Jewthulhu said:
I'm far from an expert, but here's my general understanding:

In a normal, "healthy" star, the inward force of gravity is balanced out by the energy produced from nuclear fusion in the star's core. However, once the star's core is mostly iron, the balance of energy release to energy input is skewed, meaning the energy release of fusion cannot counteract the force of gravity. This causes the star's mass to collapse in on itself until some new force is able to provide the equilibrium again. "Smaller" stars collapse into white dwarfs, while larger and more metallic stars undergo a supernova (a period of rapid fusion of heavier elements followed by an explosion of mass) and become a neutron star. In some larger stars, there is no new force to counteract the force of gravity as the core collapses, the resulting collapse of gravity forms a singularity which becomes a nigger hole.

That's my basic and probably deeply flawed understanding. I know there's a few users here who understand astrophysics to a far greater degree than I.
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I actually already knew that, what I want to know is the exact physics behind how the squishing of the particles results in the creation of a black hole based on current understandings of quantum physics.
 
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TroonsDid911 said:
I actually already knew that, what I want to know is the exact physics behind how the squishing of the particles results in the creation of a black hole based on current understandings of quantum physics.
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I'm pretty sure the answer is "fuck if i know"
I don't think we actually know much about black holes because they're inherently difficult to study beyond simple observations, math, and inferences
 
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>causes the laws of physics to be broken

How? At a high level, black holes were predicted to exist because of known laws of physics before they were ever observed in a meaningful way. It's just a really dense gravity well. So dense that light can't escape. You can observe gravity bending light in images like the hubble deep field. Shouldn't bend your brain that much to imagine matter dense enough to capture it entirely. Yeah, sure, it's hard to imagine what matter is like in there, but it's also pretty hard to imagine a teaspoon of matter from neutron stars that weighs tons. Not really sure I understand what's holding you back.

I think you're misinterpreting the message of the video. It is not saying that all black holes are created by quantum interactions. It is using a very specific example of two electrons forming a black hole as a proof of the planck scale as a universal constant. Not related to typical formation via star collapse.
 
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God told me that would be telling.

"The first gulp from the glass of natural sciences will turn you into an atheist, but at the bottom of the glass God is waiting."

Only through faith in Him have we discovered what we have. Since we've lost sight of Him we've lost our way in search of Truth. Every atheist is blinded by hubris, to think they could know enough on their own, do enough on their own, that their pursuit for Truth would be possible without the metaphysical constructs which enable it, and even when they recognize this superficially, they ignore that these metaphysical constructs can only take the form of a faith in Truth and Goodness, and crucially the necessary moral fortitude to discriminate against liars and the debased.

Also you have to be antisemitic. I don't make the rules.
 
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If you are asking for the Layperson's explanation, that's not going to involve the exact physics. The actual physics is complicated and hard to really grasp, even without getting into the math itself. Physics gets weird when dealing with extremes, like lightspeed and black holes or absolute zero.

About the most basic way of explaining black holes is that a black hole forms when the inward pull of gravity (due to the mass of the star) exceeds the outward expansion forces from the extremely hot stellar matter. Normally stars are hot and want to explode outward from all this heat, but gravity holds them together (until it doesn't, hence novas). Typically the only time that this balancing act goes in gravity's favor is when the star no longer generates fusion at its core. This is likely due to running out of available fuel once the core has turned into iron late into the star's life cycle. Without further heating from fusion, the pull of gravity exceeds the expansion from heat, and the star collapses into a point of essentially infinitely small size, a black hole.

However, even that explanation only applies to stellar mass black holes. Current science doesn't understand how supermassive black holes (like the one in the core of our galaxy) actually form. Contrary to science fiction, it is actually very difficult to put more matter into a black hole, so growing a black hole into a supermassive galaxy core black hole is hard to explain.
 
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TroonsDid911 said:
I actually already knew that, what I want to know is the exact physics behind how the squishing of the particles results in the creation of a black hole based on current understandings of quantum physics.
Click to expand...
I figured it was just more mass=more gravitational force. Get a large enough value of m and F will be big enough to cause even light to be trapped.

If you're talking about what goes on inside a black hole at the nuclear level, well, I don't think anyone knows that, or even can know.
 
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Balck holes form when the mass of an object of given radius exceeds the point where the Schwarzchild Radius exceeds the object's radius. The equation for a non-rotating, body without electric charge is as follows:
Schwartz.PNG
In other words: The radius at which a given body would become a black hole can be calculated by taking its mass (in kg), multiplying it by the gravitational constant, multiplying that product by 2, and then dividing that by the square of the "speed of light."
If you'd like a derivation as to why: fuck you, read this.
The long and short is that light cannot escape a body which is sufficiently massive and contained within a sufficiently small radius. You can basically think of every object having its own event horizon which grows as more mass is added. Once that event horizon becomes larger than the object, you have a black hole. On small scales, this requires a high density. Supermassive black holes, like the one our galaxy orbits, are only about as dense as water.

One point of clarity that needs to be made is tha c has very little to do with light. It's far more fundamental than that. Light travels at c because that's the speed of causality. Everything is always travelling at c all the time whether they're at rest or in motion in 3D space. The difference is made up by a massive object's experience of time (see: Higgs field). Gravity is just an alteration of the geodesic resulting in perturbations in 4D spacetime. Spacetime bends in such a way that more geodesics curve towards the massive body. No force is applied; you are just following a "straight" line which leads to the massive body.
Why this is relevant is that, beyond the event horizon, all geodesics point to the center. No matter which way you turn, even in the exact opposite direction, you are always facing the center. There is no way out. Not just in some esoteric physics way are you trapped, the geometry of the plane you have entered is simply cut off from the rest of the universe.

I hope this makes some sense.
 
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Solution
T
Penis Drager 2.0 said:
Balck holes form when the mass of an object of given radius exceeds the point where the Schwarzchild Radius exceeds the object's radius. The equation for a non-rotating, body without electric charge is as follows:
View attachment 4171377
In other words: The radius at which a given body would become a black hole can be calculated by taking its mass (in kg), multiplying it by the gravitational constant, multiplying that product by 2, and then dividing that by the square of the "speed of light."
If you'd like a derivation as to why: fuck you, read this.
The long and short is that light cannot escape a body which is sufficiently massive and contained within a sufficiently small radius. You can basically think of every object having its own event horizon which grows as more mass is added. Once that event horizon becomes larger than the object, you have a black hole. On small scales, this requires a high density. Supermassive black holes, like the one our galaxy orbits, are only about as dense as water.

One point of clarity that needs to be made is tha c has very little to do with light. It's far more fundamental than that. Light travels at c because that's the speed of causality. Everything is always travelling at c all the time whether they're at rest or in motion in 3D space. The difference is made up by a massive object's experience of time (see: Higgs field). Gravity is just an alteration of the geodesic resulting in perturbations in 4D spacetime. Spacetime bends in such a way that more geodesics curve towards the massive body. No force is applied; you are just following a "straight" line which leads to the massive body.
Why this is relevant is that, beyond the event horizon, all geodesics point to the center. No matter which way you turn, even in the exact opposite direction, you are always facing the center. There is no way out. Not just in some esoteric physics way are you trapped, the geometry of the plane you have entered is simply cut off from the rest of the universe.

I hope this makes some sense.
Click to expand...

Thank you, that was what I was looking for.
 
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