can anything pass into the event horizon if time is stretche
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can anything pass into the event horizon if time is stretche

[From: Astronomy & Space] [author: ] [Date: 02-28] [Hit: ]
can anything pass into the event horizon if time is stretched and the black hole evaporated faster and faster? Wouldn’t it be impossible?......

can anything pass into the event horizon if time is stretched and the black hole evaporated faster and faster? Wouldn’t it be impossible?


Ronald 7 say: Time can Not be Sretched
It is only a Theory
Luca say: As far as I understand it: for an observer that is falling in the BH (provided he isn't destroyed in the process), everything works normally, he doens't even realize he just crossed the event horizon.

For an outside observer: it takes an infinite time for the falling body to cross the event horizon, but as an outside observer the more you wait the more photons coming from the falling body lose energy (and frequency) and thus at a certain point you won't see anything at all and the body will be at (to? from? English is hard) (all) effects "in the black hole".
Jeffrey K say: I agree with you and Matthew's answer. Nothing ever crosses the event horizon.
From a far away observer's point of view, it takes an infinite amount of time for the astronaut to cross the horizon but the black hole evaporates in a long but finite time. So the black hole is gone before the astronaut reaches it. The horizon shrinks as it losses mass, and the astronaut gets closer to the singularity, reaching it just as the final evaporation occurs.
From the astronaut's point of view, it takes just minutes to reach where the horizon was but it has shrunk. A few seconds later, he gets close enough to the singularity for tidal forces to rip him apart. But he is still outside of the shrunken horizon. There is never a time when the astronaut can send a radio signal that does not reach an outside observer. He is never inside a region of space cut off from the rest of the universe.
D g say: some of the answers may have been misleading.

if an object is moving near the speed of light .. like a MESON they had this problem back in the 50's

the meson created in the upper atmosphere by a collision of high energy particles was being measured and they found alot more of the mesons hitting the earth then there should have been

but they were calculation the life of the meson in NON RELATIVISITIC environment..

the objects calculated life span was the life span the meson feels in its world at its speed

we as observers at a different velocity .. see the lifespan of the meson being LONGER time so we see the object living longer then its true life from our frame of reference and any interactions in our frame will be by the LONGER time frame NOT THE real one of the meson

so in this situration if the meson had a clock it would see time pass so that it DIED according to the first calculation the scientists made say for argument this is x seconds

but when we time them from watching them we will see them live a bit longer x + DF

where DF is the Dilation factor for lack of a better term..

You will get alot of speculation about what happens near or inside a black hole some may be correct some may be misleading..

remember that TIME AND DISTANCE change when relativity equations happen..

the speed of light that is the maximum speed in a vaccuum is constant in all frames ..

Hawking radiation doesnt make a blackhole just poof out existance when its large.. if I understan it hawking radiation is a special quantum event happening right at the boundery of a black hole so this does not happen lalot like it does when you turn on a light bulb .. its a fairly rare event..

from my unerstaning two small virtual particles pop into existance .. and in normal space just pop back out before anyone sees them .. but when it happens near a black hole one particle goes into the black hole and we get one magically appearing particle in out universe ..

think of one particle that goes into the black hole as a NEGATIVE MASS.. and the one that stays in ours a POSITIVE MASS..

THE net effect is that the blackhole loses a tiny tiny speck of mass and our universe gets a tiny bit bigger ..

the more massive the black hole the longer it will take to evaporate... so no your understanding is incorrect that the more the time dilation the faster it evaporates..

remember also that the black hole gets more mass when it has something enter the event horizon that mass is now part of the black hole..
neb say: Time dilation can be pretty confusing near a black hole. Let’s say you are in freefall near the event horizon of a black hole. If you look at your wristwatch, you will see time passing at exactly the same rate as you have always seen it pass. If you are in freefall near a stellar size black hole (pretend you don’t get torn apart), you will actually fall through the event horizon and hit the singularity in microseconds according to your watch. For supermassive blackholes, in may take hours or days according to your wristwatch to fall through the event horizon and hit the singularity. In either case, the salient point is that the freefall trip takes very little local time - and the same local time applies to the Hawking radiation - so there is negligible evaporation observed before you hit the singularity. What time dilation a far away observer sees is totally irrelevant
CarolOklaNola say: You cannot see time dilation..Time dilation foes NOT make time flow faster OR the event time flow faster or the event horizons evaporate faster the closer you get to them
Event horizons violate the CURRENT laws of physics be cause AT the eve t horizon time becomes in fine, eternity. AND.

Time dilation Requires TWO observers in the SAME frame of reference. Each person's clock is ticking at the NORMAL rate for THEM. It is the OTHER observer's clock that SEEMS to be ticking very slowly or very quickly. The event horizon evaporates at the same rate. Whether or not the person approaching the event horizon gets spaghettified and killed depends on how close they get to the event horizon. Even if the event horizon completely, they ate still dead and died from old age as well as being spaghettified.

It does not matter whether the material is indestructible or not. The molecules and atoms are torn apart and the object is torn apart by the gravitational stresses and strains at subatomic
Matthew say: To make it clearer. I recently had a thought experiment in which an object was moving toward a black hole. Let’s say that the object was indestructible. When it gets closer and closer the gravity increases (I assume exponentially as you halve the distance) would that also mean that the gravitational time dilation would increase in kind of the same way? In that case wouldn’t the closer the object get mean the longer time is actually distorted. And isn’t the longer time distorted the faster you would see the black hole evaporate due to Hawking radiation? Wouldn’t that mean that as you got closer the black hole would shrink and then you would have to get closer again? I just had this theory and wanted to see if it makes any sense at all. If this were the case that would mean no object could ever pass through the event horizon

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