mrbaggins wrote:Regarding black holes sucking in indefinitely no, not as such.
It is a widely believed fact (Love that line) that a black hole is an entity in space, much like a planet or a star. It's just that either its size or density is so great that it has a huge gravity force on its surroundings, and as such can 'suck' in everything, including light nearby.
Not quite. Black holes are qualitatively different. A black hole is a singularity.
mrbaggins wrote:Another but less followed 'fact' is that a black hole grows whenever something less dense than it gets sucked in. The amount that it 'grows' is directly proportional to the relative difference in mass of the black hole to its new victim. IE: If a bird flew into a black hole, it will change size less than if Earth were to fall in.
Yea, this is pretty well established.
mrbaggins wrote:It is even less likely believed that should a black hole get large enough, it would cease to be a black hole. However, before this point, it is expected that it would inwardly collapse, the results of which could vary widely. More than likely, it would turn into a black hole again, but denser (And smaller, and hotter) than before.
No. Nobody who knows a decent amount about the physics of black holes believes that.
mrbaggins wrote:Whilst it certainly makes an interesting image that there is a 'black hole' inside everything, the flaw rests in the fact that there basically is. A black hole is nothing more than a large collection of dense material. At the center of Earth is expected to be a large deposit of (if memory serves from reading this as a kid) molten metal. The only difference between these two is that the large enough to collapse...
mrbaggins wrote:Something you may not be aware of, but need to be for this, is that Pressure, temperature and size are all related. Hot material takes up more space (or is under greater pressure) than cold. Large items are either under less pressure or hotter than small items.
Or.. made of a different material.
mrbaggins wrote:And so, basically, the earth is small enough that its net heat effect is low (We can live on its surface at around 300 kelvin) and at its center, its quite hot and under a lot of pressure.
A black holes surface isn't the area where light cannot escape, its on a surface much like the earths, just nothing would survive there. It would be insanely hot and the pressure, even at "Ground zero" would literally tear apart a planet under its own weight.
Fuck no! A black hole has no "surface" like the Earth.
mrbaggins wrote:So... er... in summation? The earth and a black hole are pretty much one and the same, its just that one is so much larger/denser/hotter than the other, in a manner that means it can somewhat sustain itself.
Nope. Again, a black hole is a singularity, the Earth is not. Nobody really knows what goes on inside a black hole, and in a sense it's not even a physical question, because (in theory) we can't get any information from beyond the event horizon.
You might be thinking of neutron stars.
But, seriously, where did you get your information? Either you're confused or whoever you got it from is confused.