Black holes- holes in space?

[luki1997a]

Hey!
I was thinking about black holes. Maybe they aren't a solid body but a hole in space? The black hole "eats" everything. If you open an airlock in a ship with air inside, the vacuum will "eat" it too. I think the "holes in space" may "eat" every material body and vacuum. Everything- I mean space including gases, fluids, solids, plasmas, and even vacuum. "Holes" may be like a vacuum, they "eat" everything and make a "pseudo gravity". We may think, that they have infinite gravity, but it may be only an illusion. A normal guy e.g. from primary school may think, that if we open an airlock directed to the earth, then we are ejected from ship because of earth gravity. There is something in it. They can be like a "bubbles", but with nothing inside. Time dilation? So, it's a problem.

What do you think?

 

[Artlav]

Something is out there that behaves like a very strong gravity source that light cannot escape, but quantum radiation can. Sometimes they eat stars and make gamma ray bursts. Often found in the cores of the galaxies, but could be anywhere.

That's all we know, the rest are pure guesses.

 

[Krikkit]

An air lock and a black hole don't behave anything alike. Air diffusing between a pressure vessel and the near vacuum of space follow standard model statistical mechanics, black holes do not.

Plus hawking radiation pretty nicely summed up the black hole entropy paradox, so it doesn't appear that black holes send anything anywhere other than back into our own universe.

 

[Cras]

The best way I figured to describe them is that a black hole is gravity gone nuts. There is really no hole, just enourmous amounts of mass that creates enourmous amounts of gravity. Our detection is the aforementioned radiation which sort of rides the well and then gets shot up and down on the axis.

The great debate that led Dr Hawking some years back to claim that black holes infact DO NOT exist is that in Black Holes there appears to be a loss of information, which cannot happen. All kinds of things can happen, entropy enthalpy, mass into energy, but information cannot be lost. There was put forth a way in black holes where the information can get out from the brink of the Event Horizon that settled it for Dr Hawking and he jumped on board, but I think it is safe to say, that despite all human curiousity and ingenuity, Black Holes are on the shortlist of mysteries that we will never solve. For it is infact physically impossible, information lost be damned.

 

[jedidia]

What do you think?

I think you should apply for a job as scriptwriter for Star Trek! :lol:

There is really no hole, just enourmous amounts of mass that creates enourmous amounts of gravity.

It's a connection between mass and radius, actually: It's so much mass together on such a small space that it is theoretically constantly collapsing on itself at the speed of light... So yeah, the term "hole" is really misleading.

 

[Fizyk]

General relativity gives a nice description of what is inside a black hole, though for obvious reasons we can't check if it's true (nothing can escape from the black hole - even the Hawking radiation, as I understand it, isn't anything escaping from the black hole, it's actually more like virtual particles falling inside). So, according to that description, although the black hole itself isn't like a hole in space-time, the singularity in the black hole is actually a bit like one.

It's so much mass together on such a small space that it is theoretically constantly collapsing on itself at the speed of light...

Or "collapsing" at zero speed (like, totally frozen in time), or already collapsed to a point - depending on the frame of reference and the definition of velocity But yeah, your description is also a valid one.

 

[tblaxland]

even the Hawking radiation, as I understand it, isn't anything escaping from the black hole, it's actually more like virtual particles falling inside).

My understanding is that the Hawking radiation is actually thermal radiation from the black hole that fails to fall back in. The radiation appears at the event horizon, but due to quantum effects some of it is slightly outside the horizon and energetic enough to escape. Hawking radiation has not been observed though (or rather, the observation is not verified).

 

[Fizyk]

My understanding is that the Hawking radiation is actually thermal radiation from the black hole that fails to fall back in. The radiation appears at the event horizon, but due to quantum effects some of it is slightly outside the horizon and energetic enough to escape.

Well, I don't have a good understanding of the quantum effects near a black hole, but from what I understand, it can be imagined like that: virtual particle-antiparticle pairs are randomly created in the vacuum. When a pair is created near the horizon, so that one of the particles falls in, and the other escapes, the one that fell in must have had negative energy (because of the conservation of energy). So, after adding that to the energy of the black hole, it becomes smaller (and so does the mass), and the particle that escaped looks like it was emitted by the black hole. The energy spectrum of those escaping particles also happens to be described by the Planck distribution, so it looks like it's thermal radiation.

(This is pretty much what is written on Wikipedia )

 

[statickid]

Hey!
I was thinking about black holes. Maybe they aren't a solid body but a hole in space? The black hole "eats" everything. If you open an airlock in a ship with air inside, the vacuum will "eat" it too. I think the "holes in space" may "eat" every material body and vacuum. Everything- I mean space including gases, fluids, solids, plasmas, and even vacuum. "Holes" may be like a vacuum, they "eat" everything and make a "pseudo gravity". We may think, that they have infinite gravity, but it may be only an illusion. A normal guy e.g. from primary school may think, that if we open an airlock directed to the earth, then we are ejected from ship because of earth gravity. There is something in it. They can be like a "bubbles", but with nothing inside. Time dilation? So, it's a problem.

What do you think?

better brush up on the basics...and research better terminology. Black holes dont eat up anything or suck up things. Pseudo gravity...hmmm when we figure out what exactly gravity is then we will know when it is not really gravity

 

[RisingFury]

What do you think?

That you should *at least* read the Wiki article about black holes first...

 

[statickid]

i could ponder whether i live in a pseudo reality