Black hole question?

Question

Since nothing can escape a black hole (not even light) is it true to say that over an infinite period of time all of the matter contained in the universe at this point will eventually end up being swallowed up? Seeing as light cannot escape being sucked in, and based on the pemise that nothing can move faster than the speed of light therefore everything will eventually disappear down a black hole. Is this the case - that the universe will be consumed by black holes?

ie. not by a single black hole, but by all of the black holes that either exist now or in the future. What happens when there is nothing left to draw in?

Answer 1

Actually while it is true that nothing can escape a black hole, black holes still do evaporate. The reason is that, in quantum physics, a particle has a non-zero probability of crossing a barrier that would normally be too high (it's been called the "tunnel effect", because in the normal world this would be as if a slow rolling ball, too slow to get to the top of a hill, somehow still managed to get to the other side, as if via some tunnel).

Steven Hawking has shown in his theories that black holes "evaporate" (radiate energy), and that the smaller they are, the faster they evaporate.

So no, it seems unlikely that the universe will utlimately end up populated only by black holes.

a

Answer 2

You have gotten confused into thinking that any object at any position in spacetime should get swallowed by a black hole. Remember that the immense gravitational pull of a black hole is limited in distance and an object that is 5 light years away has absolutely no chance of being swallowed by black holes unless there is another black hole very close to the object. The whole universe cannot be swallowed by a black hole as there should be an infinite number of black holes to achieve that and we know that not all dying stars turn into black holes!! For an astronomy discussion visit astrowhiz on Yahoo Groups where all your questions can be answered!

Answer 3

No. it can't be said. As you might know even black holes have an emission though: the so called jets that appear for some reason only on two opposite sides (nobody knows why, because usually energy's emission is always the same in every direction. These jets "come out" of the black hole close at the speed of light and are huge xray emitters ... quite slim but several lightyears long, that is why they are called "jets"

Answer 4

There is a problem concerning "black holes". The problem is that they cannot exist. Check out mass acceleration at a distance of 0.716 miles from the center of our planet. Were a mass able to be released at that location, it would exceed the speed of light in one second. Mass cannot move faster than the speed of light. So, what that leaves us is that there is either a "black hole" in the core of our planet, or there is a void space where no mass is able to exist. If it were to be a black hole, then that mass would suck the mass of our planet into it, leaving us non-existent. In our sun the distance is 400 miles from its core point where mass cannot exist.

http://360.yahoo.com/noddarc there is a short writing "The Problem and Repair of Relativity" that explains this more clearly.

Answer 5

Ive heard that if humans got sucked up into a black hole we would be evaporated but we would still be able to think (like Ur favourite meal ) its a bit like entering an endless source of darkness
well this is what Stephen hawking said

Answer 6

It has been suggested the gravity is a result of the exchange of as of yet discovered particles called gravitons and like light have a duel particle/wave existance....
Therefore particles can escape from a black hole as it as able to exert a gravitational force

Answer 7

Black hole is a phenomenon in space, observed as light is bent around this phenomenon. Your description is theory but keeping your premises true for the meantime means that your conclusion is plausible. However, theories are nice but they do not explain everything. Fortunately, that the universe will become a black hole is far-fetched.

Answer 8

the universe is expanding and will continue to do so. everything
is moving away from each other. eventually there will be no stars
in the night sky and the observer will be totally lost and alone,
but then on the other hand, suppose your theory is right, this could mean that another big bang was imminent and maybe there have been lots of big bangs before

Answer 9

Or maybe everything has already been sucked in and we are currenly in a balck hole and the black hole that we see are actually the escape out of this town???? Hmmmmm...

Answer 10

I think black hole emits radiation in the form of heat. scientists believe that there is a limit to black body. So I think each black hole must be ending in white hole giving rise to new universe.