hawking paradox?

Question

Has any one seen the show on the discovery chanel pertaining to stephen hawking and the idea that black holes dont destroy matter but really just hold matter inside?

if this is true how could we obtain this information and why is stored in the black hole originaly.

also in the show is stated that we are only one of many different multiversis and dimensions any thoughts of this...

sorry for the spelling errors.

Answer 1

Hawking proposed that Black Holes DO destroy information eventually, because a black hole does have entropy and would eventually disappear...so what happens to that information?

Thats what the Hawking Paradox was, not the opposite. It caused large problems in the physics community because it violates the Liouville theorem, which i'm not going to explain here but its one of the foundations of physics.

Now dont be confused by the term information; it doesnt refer to your shopping list, its talking about the information encoded in every quantum particle: spin, mass, charge, etc...

Hawking did come out a few years ago and say he was wrong, that information was NOT lost in black holes, so the Hawking paradox has been pretty much resolved in various ways by different people, including Hawking himself.

Theres no way for us to get information out of a black hole, and its not like its 'stored' in there. Black holes draw in and consume anything close enough to its massive gravitation. We might be able to observe the hawking radiation, but that is NOT the same as retrieving information from the singularity.

As to the different multiverses and dimensions, that where alot of the mathematics of new theories like Supergravity and M-theory are leading us. But as far as TESTABLE predictions yet, we're a little thin. The scales of what is being working with is incomprehensibly small, around the Planck length, which is the smallest unit of length possible. We will probably NEVER be able to directly observe Strings and such, but there are other effects that might be testable in the near future. I'm hoping :)

and yes i have watched that show a couple times...its pretty good. Tivo it and watch it a few times, they do explain everything in the show...

Answer 2

There may be a way to obtain information from the black hole, by the process of Hawking radiation. This kind of radiation is a quantum mechanical process in which black holes radiate energy, and this radiation gradually accelerates over time. But how is all this information saved when all thats left of the black hole is hot radiation? This is called the "Black Hole Information Paradox," and is believed to be solved when a theory of quantum gravity (a theory that unifies quantum physics with general relativity) is formulated.

Why does the information get trapped there? Well, since a black hole's escape velocity is faster than the speed of light, not even light can escape such an intense gravitational pull, so any information to stray close enough could become trapped.

Answer 3

It's often noted that nothing can escape from beyond a black hole's event horizon. One thing that is often overlooked, though, is that the prohibition about crossing the horizon goes both ways; Nothing can ever fall beyond the horizon too (at least in the frame of a remote observer). You'd have to fall forever to reach the horizon due to the singular distortion of space-time. In fact, the forever in-falling matter evaporates after 10 to the big years (again, external frame) and becomes Hawking radiation. Apparently, according to Hawking recent calcs, this radiation, in principle, preserves and returns the information to the outside universe.

Answer 4

I can't help with the first part, but I do agree with the second part. Interestingly, because of how I view multiple universes, I disagree with the idea that black holes would hold the matter that they collect. I feel more that they are a conduit than a gargabe bin. To me a black hole and a big bang could easily be the same event viewed from different sides. What a black hole (or what appears to us as multiple black holes) collects could be spewed into the creation of a different universe. Both black holes and big bangs are singularities - in other words, they are points that are undefined in our current understanding. Both approach infinite mass and energy. If we simply allow the possibility that the universe that we live in is not the entirety of all things, then it becomes entirely possible that these two phenomena are closely related and the black hole is simply the conduit through which matter and energy are channeled into a different universe. That's my story and I'm stickin to it