Timeline for Free falling observer's description of object falling past the event horizon
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Jan 22, 2019 at 14:10 | answer | added | user4552 | timeline score: 1 | |
| Jan 22, 2019 at 13:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 20, 2017 at 15:21 | comment | added | alex | Let us continue this discussion in chat. | |
| Jan 20, 2017 at 15:18 | comment | added | John Rennie | That's wrong I'm afraid. Nothing happens to a freely falling observer at the event horizon. They sail right on through without even noticing. That's the point of the spacetime diagrams in the two questions I linked above. | |
| Jan 20, 2017 at 14:31 | history | edited | alex |
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| Jan 20, 2017 at 14:22 | comment | added | alex | @JohnRennie doesn't this also mean that anyone would be compressed so extremely that they would always die at the horizon itself ? | |
| Jan 20, 2017 at 14:11 | comment | added | alex | In your linked answer, if you imagine the camera sending pulses of light to you periodically, you will see the camera at closer and closer positions to you as you approach the EH since the constant radius hyperbolas get closer and closer in this region. When you reach the EH, you see the camera in the same position as yourself since the hyperbola at this point is identical to the light trajectory. Is this interpretation correct? does this mean that you, the camera and any other free falling thing are compressed together onto the EH surface for that instant of time? | |
| Jan 20, 2017 at 13:18 | comment | added | John Rennie | Alex, to answer your followup question see Taking selfies while falling, would you be able to notice a horizon before hitting a singularity? | |
| Jan 20, 2017 at 13:05 | answer | added | peterh | timeline score: 0 | |
| Jan 20, 2017 at 13:05 | history | edited | alex | CC BY-SA 3.0 |
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| Jan 20, 2017 at 13:00 | comment | added | alex | @John Thanks, that was helpful.What I concluded is since a free falling observer will see himself crossing the horizon in finite time, it's obvious that he will see something say in front of him also cross the horizon. but what will this look like? Somehow the fact that it will be visible one moment and invisible the next doesn't seem right... | |
| Jan 20, 2017 at 12:21 | comment | added | John Rennie | It isn't a duplicate, but my question Does someone falling into a black hole see the end of the universe? is similar. The answer to your question would be basically the same i.e. we'd use the Kruskal-Szeckeres coordinates to analyse the motion. | |
| Jan 20, 2017 at 11:56 | history | asked | alex | CC BY-SA 3.0 |