Timeline for How long would it take to reach the edge of the reachable universe?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Jul 13, 2019 at 7:42 | review | Suggested edits | |||
| Jul 13, 2019 at 22:12 | |||||
| Sep 8, 2018 at 15:42 | comment | added | Jonathan | @trampster wow, an interesting point I had not considered. I don't know how that would work yet... | |
| Feb 20, 2018 at 1:14 | comment | added | trampster | If instead the expansion rate is the same to all observers regardless of velocity then the universe wont expand much in those 45 years from his point of view and therefore he can make it well past the edge of the observable universe. | |
| Feb 20, 2018 at 1:10 | comment | added | trampster | So how does it work out if you do consider the expansion of space time. As your approach C length contracts and at the same time space time is expanding. Does the traveler therefore observe a greatly increased expansion rate one which dominates the length contraction he is also observing. Preventing him from reaching the edge of the observable universe? The implications of this is that speeds are not relative and that there is actually a universal reference frame which you could discover by adjusting your speed until you minimize the observed expansion rate of the universe. This seem wrong. | |
| May 2, 2016 at 7:15 | history | edited | pela | CC BY-SA 3.0 |
typo fix
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| Apr 16, 2016 at 17:46 | vote | accept | Jonathan | ||
| Apr 16, 2016 at 17:35 | comment | added | Jonathan | ah yes, I don't know how I missed that (unless it was edited in). Thank you! | |
| Apr 16, 2016 at 17:33 | comment | added | pela | @Jonathan: I think it's there already: "…the proper time $\tau$ to reach a distance $x$ when traveling at $a$". Or which variables are you thinking of? | |
| Apr 16, 2016 at 17:19 | history | edited | ProfRob | CC BY-SA 3.0 |
added 1 character in body
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| Apr 16, 2016 at 17:18 | comment | added | Jonathan | Thanks for providing the formula, revision, and for a well thought out answer! Could you please specify what all the variables are in the formula? | |
| Apr 16, 2016 at 17:05 | history | edited | pela | CC BY-SA 3.0 |
added 179 characters in body
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| Apr 16, 2016 at 16:51 | history | edited | pela | CC BY-SA 3.0 |
Corrected wrong t
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| Apr 16, 2016 at 16:38 | history | answered | pela | CC BY-SA 3.0 |