How do black holes grow if time freezes at the event horizon?

Question

I read that time slows down to a stop at the event horizon, because of time diolation, so to us watching from a distance it would appear to take for ever to fall in.

1. I did not answer my own question. 2. I know that to the person falling in,it's over quickly. That doesn't matter from our point of view. How does the event horizon get larger if time is frozen from our view point?

William K. has his relativity mixded up! We would see time stop at the event horizon watching something fall in and it would be normal time to the person or object falling in.

Answer 1

The black hole model of a singularity implies a point mass whose gravitational force is great enough to prevent light from escaping (the event horizon). As mass is added to the system the event horizon extends out (growing). The ability to observe the event of mass falling into the event horizon is complicated by this fact. As the mass is added, the horizon increases, but at the event horizon observation of the system ceases, since nothing can escape to be observed.
If you were to examine the same question but change the model of the black hole several other answers can occur, since not all models suggest that the mass is added to the system. Toroidal models would suggest that the mass is accelerated through a point and converted into energy that is dispersed back into the universe. In this model the system never grows and all mass is converted into energy that extends out in a double cone.

Answer 2

I think you have your relativity mixed up. if we could watch someone fall into a black hole we would see it in our normal time as measured by a clock in our pocket. It is the unfortunate astronaught's clock that would come to a stand still. Furthermore it is not at the event horizon but at the singularity that time comes to a halt. The event horizon is just the point where the escape velocity is equal to the speed of light.
The singularity is the point of zero size in space and infinite density. so when matter falls into the singularity it's time stops but for us watching the black hole it becomes more massive. Black holes spew out x rays from each of their poles and also emit particles at the event horizon. So to answer your question: it is the astronaught that would think he is taking forever to fall in but accoring to our clocks he falls in in a matter of seconds.

Answer 3

Time also slows to a stop at the speed of light - yet the light still jogs along at 186,000 miles per second. Time allegedly stops at an event horizon due to the extreme gravity, but the black hole will continue its quest of sucking up any objects in the area.
It's an observers perspective question - if I were to travel at the speed of light, time would literally slow to a stop and I would transverse the entire universe in no time (my perspective) but I would be traveling at the speed of light and covering relatively small expanses of space in any reasonable amount of time (earthly perspective).
At the event horizon, you will be annihilated slowly and extremely painfully (earth's perspective) but it would be instant (victim's perspective).
This time dilation phenomenon was invented by Einstein to make us realize how dumb we are.

Answer 4

actual a black hollow is a lot less of a funnel, and extra of a huge merchandise that crushes each little thing that it encounters by way of severe gravitational pressure it exerts. the basically thanks to ward off getting sucked in is to mind-set it with a tangential course at an extremely large speed and hence orbit it. hence, you may now keep in mind that a black hollow would not shop gadgets, yet extremely crushes them

Answer 5

we cannot time travel. we are frozen on the cusp of time always living in the infinite moment. we are the black hole and time is merely an expression of measurement of the force of gravity against vacuum implicit due to the nature of e.

Answer 6

Ah but to the fallee it appears to happen instaneously. Add the mass adds to the black hole's mass

Answer 7

Do black holes indeed expand or as I predict the immense pressure would cause them to actually contract?

Answer 8

You answered your own question with the point of reference clarification.