AFAIK, the mass of a black hole is concentrated on a point called the singularity, this is the reason for its extreme gravitational pull. So for black holes to behave the way it does, it needs a singularity. Are you suggesting that this singularity is made of dark matter ?
How does this dark matter singularity become that foggy patches shown in the NASA Hubble map ? To me, this doesn't seem to solve dark matter but just complicates things even more, lol 😂
AFAIK, general theory of relatively is proven. I don't know if singularity makes space-time curvature infinitive, that's kinda confusing because infinity a theoretical. For example, we consider sun's rays as parallel even though its not at an infinite distance from earth, so the context matters.
Because I don't know the mathematics behind all this, I'm not sure which infinity they meant. Its possible that they meant the true theoretical infinity. I've heard the quote "black holes are where god divided by zero", so there's definitely some weird mathematics going on. I think Hawking radiation disproved that statement, IDK 🤔. Its been a while since I last heard about black holes, haha. Anyway, these things are weird AF, they're too dense for us to grasp ;)
> Why is my theory making things more confusing
Singularity is more like a point, so calling it a "ball" is kinda misleading. Also, there's a lot of unknowns about dark matter, you're just making a lot of assumptions here, that stars convert matter to dark matter when they explode, that black holes convert matter to dark matter when it swallows something, etc. There's no need to make it this complicated when you can explain everything using a singularity made of normal matter, not dark.
Its not actually a hole, you know that right. It just pulls everything in to the singularity, that's just an extremely powerful gravity. And for where does this matter go, there are theories saying its like wormhole, so it spews everything it swallows somewhere else. There's also Hawking radiation, which is more widely accepted I think. It solves this information paradox, because it shows that black holes radiate away.
"It just pulls everything in to the singularity" - so you're saying it pulls stuff into that "point"? Then why are these black holes bigger, smaller, have a shape, a mass?
I'm no expert, but from what I understand, what they mean by the size is the event horizon. The event horizon is a boundary inside which light can no longer escape. So intuitively, this event horizon should expand when the mass increases because gravity increases with mass.
BTW, from what I know about black holes, they don't have a shape. I've heard about spinning black holes, but never a cube/pyramid shaped one 😁
Oh yeah, the singularity might be of any shape, we don't really know much about the inside, everything after the event horizon is just black
Most black holes I've seen in pictures and stuff have a spherical event horizon, and I think the disk you're mentioning is things orbiting these black holes that glow because of their heat, that video explained it. If the event horizon is spherical, the stuff inside should be spherical too right ? I don't know enough about gravitational fields to know
That disk shape could also be something called "gravitational lensing" which happens around the event horizon. Its kinda weird TBH, crazy things start to happen when the gravitational pull is so high !
Those 2 videos are very good 👍
My confusion regarding this black balls theory is this:
1. Not even light can escape a black hole because its so dense that the gravity is in the extremes. But if it was a ball the same size (of event horizon), then it wouldn't be this dense and wouldn't have that much gravity
2. We don't even know if matter can become dark matter, let alone say that stars exploding will cause it. Its called dark matter cause we literally know nothing about it, lol 😂
Not even light can escape a black hole because its so dense that the gravity is in the extremes. But if it was a ball the same size (of event horizon), then it wouldn't be this dense and wouldn't have that much gravityActually the one who first came up with this theory, a mathematician some 200 years ago, called it a dark/black star and proved mathematically you can have such a star where light can't escape it because it is so dense. And black holes are actually stars....same way a neutron star is still a star. They call it "hole" and make things confusing a lot :D.
We don't even know if matter can become dark matter, let alone say that stars exploding will cause it. Its called dark matter cause we literally know nothing about it, lolExactly. We don't even know if it is matter. But has similar properties with a black hole that's why they are thinking black matter can in fact be black holes. They both do not interact with light/matter so that we can't see them, and have a strong gravitational pull.
> Actually the one who first came up with this theory, a mathematician some 200 years ago, called it a dark/black star and proved mathematically you can have such a star
I didn't knew about that, interesting... 🤔
Also, keep in mind that this mathematician can be wrong, there has to be a reason we don't call it a star anymore. Einstein published general relativity in 1915, before that we didn't had a clear picture of how gravity worked.
Its possible for a star's gravity to bend light, this is actually how we proved general relativity. But a star's gravity is not strong enough that even light can't escape, if it were then it wouldn't be able to glow ;)
Also, when you call it a black ball, a dark planet comes to my mind. And I don't get how a planet can do what a black hole does. Even if your black ball was made of dark matter, the gravitational properties would be kinda the same as a normal ball.
As long as we're talking about the singularity, the name we give to it doesn't matter. In my mind, I see stars as something that radiates energy, so its hard to call black holes a star. I know about hawking radiation, but its very different thing. In hawking radiation, none of the energy/matter that's released comes from the black hole itself.
From wikipedia: "A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity"
Its also hard for me to call singularity a "ball" because now I have a better understanding of why they theorized it to be point sized. Even if it wasn't point sized, I still find it hard to call something so tiny a "ball". Would you call atoms a "ball" ? IDK, sounds weird to me.
Yes, you'll find it hard to imagine a point sized object cause its vastly different from anything we've ever seen. I don't know how to explain this, but I'll try. You just have to think about why a point sized object can't exist in our day to day life. If you think about it from the perspective of atoms and particles, then you'll understand that its because of the repulsion between these particles. Black holes are born when stars collapse that are massive enough to overcome all repulsions.
> Ofc this can be true, but I find this one to be so wild.
Yes, and that's what makes black holes interesting, they are wild 😀
Black holes are born when stars collapse that are massive enough to overcome all repulsions.That's the theory. But we do not know for sure. Maybe there are all sorts of matter out there and forces. After all the normal physics and the quantum one are still not shaking hands from what I know. They had to invent a new kind of physics to explain those new particles.
A big factor for confusion here is that I'm not really sure how much of the stuff I've heard about black holes are just a theory vs how much is actually evidence based. Everytime I hear about black holes, I hear all of these same things, singularity, event horizon, etc.
One thing we both agree here is that our knowledge about the universe is limited. I'm not saying your theory can't be true, I'm just trying to explain why I find it confusing. Ofc, we have different POV about black holes 🙂
Its interesting you mentioned quantum mechanics, cause that's even crazier, haha
> They had to invent a new kind of physics to explain those new particles.
New physics ? Dude, quantum mechanics is literally MAGIC !
Did you know that they actually teleported data using quantum entanglement ? If this isn't magic, IDK what is......
Thanks, I'll take a loot at that. I like learning about quantum mechanics, its probably the most insane/craziest fields of science ever. It feels literally like magic to me, and I can't believe these things are REAL, I mean WTF ?
BTW, you can try doing the double slit experiment at home - https://www.youtube.com/watch?v=kKdaRJ3vAmA
I'll do this one day when I buy a laser, a cheap one should be enough I think.
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