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Black Holes
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MapleStory.
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PostPosted: Tue Sep 01, 2009 6:53 pm    Post subject: Black Holes Reply with quote

...have, by definition, a gravity so immense that not even light can escape.
Wikipedia states:
"...a black hole is a region of space in which the gravitational field is so powerful that nothing, including light, can escape its gravitational pull. The black hole has a one-way surface, called an event horizon, into which objects can fall, but out of which nothing can come."

This is also stated almost word-for-word in my science textbooks at school, and in any dictionary with 'black hole' in it.


What about Hawking radiation? If it's been 'proven' back in 1974, and all my sources were written and published well after that, why do they all have the same seemingly-wrong definition?

Also, if light isn't going fast enough to escape, and supposedly nothing can go faster than light, how is this physically possible?


I'm not trying to start a discussion, I'm seriously asking. What is it that I'm missing?
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Aviar³
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PostPosted: Tue Sep 01, 2009 7:00 pm    Post subject: Reply with quote

I believe he worked on the environment and changes seen around a black hole. Radiation is something that it gives off, particularly heat. The definitions are correct, as they state, " gravitational field is so powerful that nothing, including light, can escape its gravitational pull". Escape means a black hole has can pull on it, particularly matter and light (elementary particle). A black hole cannot however pull energy into it, so it cannot escape a black hole as the black hole was never pulling it into itself.
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MapleStory.
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PostPosted: Tue Sep 01, 2009 7:04 pm    Post subject: Reply with quote

Ok, so I only misunderstood what Hawking radiation was.
This one book I got in my science class (yeah, I didn't trust my school book so I consulted the internet) said that black holes emitted particles. It's really only heat/energy, right?
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Karakawe
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PostPosted: Tue Sep 01, 2009 7:05 pm    Post subject: Reply with quote

I honestly have no clue about the science aspect of the question. However, when it comes to coining definitions, popular meanings will almost always outlive true meanings. Same for ideas. When people get something in their head from misdocumented research or a poor news job and it starts showing up everywhere, it's not going away. Happens all the time. Confused
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MapleStory.
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PostPosted: Tue Sep 01, 2009 7:10 pm    Post subject: Reply with quote

Karakawe wrote:
I honestly have no clue about the science aspect of the question. However, when it comes to coining definitions, popular meanings will almost always outlive true meanings. Same for ideas. When people get something in their head from misdocumented research or a poor news job and it starts showing up everywhere, it's not going away. Happens all the time. Confused

Yeah, usually, but when it comes to multiple scientific texts, usually not. Either way, there's something wrong and my curiosity alone would keep me up at night.
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Aviar³
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PostPosted: Tue Sep 01, 2009 7:11 pm    Post subject: Reply with quote

I am not a specialist (thought I wish I was in Quantum Field Theory), but from what I know, yes. They can degrade and show to give off some heat, though minimal.
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MapleStory.
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PostPosted: Tue Sep 01, 2009 7:18 pm    Post subject: Reply with quote

Aviar wrote:
I am not a specialist (thought I wish I was in Quantum Field Theory), but from what I know, yes. They can degrade and show to give off some heat, though minimal.

On a completely unrelated thought, what's the big mystery about them?
It's been more or less proven that they exist and that radiation can escape, and if whatever matter is being sucked in makes the hole bigger, it's just more for it to 'burn', right? It's just a sun that light doesn't get out of, basically. It'lll still end up burning out and evaporating, amirite?
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Aviar³
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PostPosted: Tue Sep 01, 2009 7:24 pm    Post subject: Reply with quote

On a completely unrelated thought, what's the big mystery about them?
It's been more or less proven that they exist and that radiation can escape, and if whatever matter is being sucked in makes the hole bigger, it's just more for it to 'burn', right? It's just a sun that light doesn't get out of, basically. It'lll still end up burning out and evaporating, amirite?[/quote]
Read up on their opposites, white holes. Also I am not sure if is still a standing belief, but time seems to dilate near them, and slow down. Apparently they have so much mass, they can warp and deform the time and space around/in them. Some people believe that they even allow instantaneous travel to a connecting white hole.

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MapleStory.
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PostPosted: Tue Sep 01, 2009 7:47 pm    Post subject: Reply with quote

Aviar wrote:

Read up on their opposites, white holes. Also I am not sure if is still a standing belief, but time seems to dilate near them, and slow down. Apparently they have so much mass, they can warp and deform the time and space around/in them. Some people believe that they even allow instantaneous travel to a connecting white hole.

Do you have any reliable articles on white holes? I haven't been able to find a single thing about them that has/can be proven.
(Not trying to disprove it, just sayin' I can't find it.)

Also, there is no connection between black holes (imo) and anything else. It's just like flying into a sun, but bigger. Particles get compressed, not destroyed or teleported. If black holes have such huge gravity, they warp space (proven) and thus can be much larger than what they appear to be, at least in theory. There is *no* evidence suggesting that they are anything really special, aside from their immense gravity.


Last edited by MapleStory. on Tue Sep 01, 2009 7:48 pm; edited 1 time in total
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Drkgodz
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PostPosted: Tue Sep 01, 2009 7:47 pm    Post subject: Reply with quote

Aviar wrote:
Quote:
On a completely unrelated thought, what's the big mystery about them?
It's been more or less proven that they exist and that radiation can escape, and if whatever matter is being sucked in makes the hole bigger, it's just more for it to 'burn', right? It's just a sun that light doesn't get out of, basically. It'lll still end up burning out and evaporating, amirite?

Read up on their opposites, white holes. Also I am not sure if is still a standing belief, but time seems to dilate near them, and slow down. Apparently they have so much mass, they can warp and deform the time and space around/in them. Some people believe that they even allow instantaneous travel to a connecting white hole.

White holes have never been seen though. There is no evidence to back up the white hole theory.
And you are correct, nothing is faster than the speed of light. However gravity doesn't need to move as fast as the speed of light to pull a light particle.

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Last edited by Drkgodz on Tue Sep 01, 2009 7:50 pm; edited 1 time in total
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MapleStory.
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PostPosted: Tue Sep 01, 2009 7:50 pm    Post subject: Reply with quote

I read Stephen Hawking's explanation of white holes, in which he stated they exist solely to be opposite to black holes.
If black holes are just stars that light can't get out of, shouldn't their opposites be normal stars? After all, once they are formed, they're not really doing much besides spitting out stuff.
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Drkgodz
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PostPosted: Tue Sep 01, 2009 7:53 pm    Post subject: Reply with quote

MapleStory. wrote:
I read Stephen Hawking's explanation of white holes, in which he stated they exist solely to be opposite to black holes.
If black holes are just stars that light can't get out of, shouldn't their opposites be normal stars? After all, once they are formed, they're not really doing much besides spitting out stuff.

The whole white hole theory is pretty much talking about wormholes.
That's the stuff you hear about in scifi movies. And the difference between a star and white hole would be that the white hole spits out everything the black hole sucks in. So the black hole would be spitting out planets and stuff if that's what the black hole had taken in.

I don't see though, how a white hole could exist and a black could exist together.

A black hole is a black hole because of its immense mass in a small area. If the mass is sent somewhere else and ejected, then how can the black hole maintain its mass?

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MapleStory.
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PostPosted: Tue Sep 01, 2009 8:01 pm    Post subject: Reply with quote

Quote:
The whole white hole theory is pretty much talking about wormholes.
That's the stuff you hear about in scifi movies. And the difference between a star and white hole would be that the white hole spits out everything the black hole sucks in. So the black hole would be spitting out planets and stuff if that's what the black hole had taken in.

I don't see though, how a white hole could exist and a black could exist together.

A black hole is a black hole because of its immense mass in a small area. If the mass is sent somewhere else and ejected, then how can the black hole maintain its mass?

None of that makes sense, though. A black hole is just a really big star, with some really weird gravitational effects. It's not doing anything with the matter it sucks in besides compressing it, converting some of it to energy and eventually emitting it. We can't know for sure as no-one can actually see this happening, but if it was created by a star getting too big, why would it have near-supernatural effects?
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PostPosted: Wed Sep 02, 2009 8:24 am    Post subject: Reply with quote

imagine: (OoOoOoOoO)

so....O = universe o=Holes

think bout it.

BTW the Oo are connected.

so like a balloon and squeeze the end of it to make two of em by a small path to one another and think about it ever expanding and turning from 1 to 2 to 3 to 4 to 5 only to be suppressed by the energy in it when one day, everything explodes and causes a chain reaction through each hole or worm/black/white hole if you will causing a "BIG BANG" thus making this whole process restart itself. The residue in the "UNIVERSE" is the matter of its old explosion and the start where the "universe" is like a inflated balloon which with air or "particles" if you will, go together expands until the "universe" can't handle anymore and explodes...Which in time restarts itself become the item we so suddenly want to know more about.

Its my theory so don't try to take it.
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STFUandSUCK
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PostPosted: Tue Sep 08, 2009 7:06 pm    Post subject: Reply with quote

So white holes can pretty much slow down time? That would be an amazing discovery if someone were to actually find one
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