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The strange fate of a person falling into a black hole

bbc.com

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Re: The strange fate of a person falling into a black hole

#2

Post by guard-of-terra »

You can only get inside black hole after time ends. That's because universe-time stops at the horizon.

The moment you fall in, Anne is dead eternally long ago.

Also, you are incinerated by a billion years of starlight per your second, including energetic particles I guess.

You will observe the end of universe and death of everything in it before diving.

Re: The strange fate of a person falling into a black hole

#3

Post by thomasahle »

guard-of-terra wrote: post #2

You can only get inside black hole after time ends. That's because universe-time stops at the horizon. The moment you fall in, Anne is dead eternally long ago. Also, you are incinerated by a billion years of starlight per your second, including energetic particles I guess. You will observe the end of universe and death of everything in it before diving.

Well, it has to be slightly more complicated than that. After all you are going to be emitted as hawking radiation a lot earlier than the end of the universe.

Re: The strange fate of a person falling into a black hole

#4

Post by [deleted] »

thomasahle wrote: post #3
guard-of-terra wrote: post #2

You can only get inside black hole after time ends. That's because universe-time stops at the horizon. The moment you fall in, Anne is dead eternally long ago. Also, you are incinerated by a billion years of starlight per your second, including energetic particles I guess. You will observe the end of universe and death of everything in it before diving.

Well, it has to be slightly more complicated than that. After all you are going to be emitted as hawking radiation a lot earlier than the end of the universe.

[deleted]

Re: The strange fate of a person falling into a black hole

#6

Post by guard-of-terra »

thomasahle wrote: post #3
guard-of-terra wrote: post #2

You can only get inside black hole after time ends. That's because universe-time stops at the horizon. The moment you fall in, Anne is dead eternally long ago. Also, you are incinerated by a billion years of starlight per your second, including energetic particles I guess. You will observe the end of universe and death of everything in it before diving.

Well, it has to be slightly more complicated than that. After all you are going to be emitted as hawking radiation a lot earlier than the end of the universe.

Large black holes have life expectancy so much larger than universe age that it's not even funny. They're not going anywhere AFAIK. No, you will stay there and watch.

"The power in the Hawking radiation from a solar mass black hole turns out to be a minuscule 9 × 10−29 watts. It is indeed an extremely good approximation to call such an object 'black'."

Re: The strange fate of a person falling into a black hole

#9

Post by tvmalsv »

guard-of-terra wrote: post #2

You can only get inside black hole after time ends. That's because universe-time stops at the horizon. The moment you fall in, Anne is dead eternally long ago. Also, you are incinerated by a billion years of starlight per your second, including energetic particles I guess. You will observe the end of universe and death of everything in it before diving.

If that were the case, wouldn't that mean that the moment a black hole is formed, it would never become any larger? How have super-massive black holes formed in less than 14 billion years?
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