Timeline for Can a generation ship withstand its own oxygen and daily wear for many thousands of years?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| May 21, 2019 at 6:23 | comment | added | Matt Skeptic | Yes R, I agree. Let's just stay on planet earth and work on population reduction - which is probably the best way to save humanity from a more immediate catastrophe. | |
| May 20, 2019 at 22:56 | history | edited | R.. GitHub STOP HELPING ICE | CC BY-SA 4.0 |
added 229 characters in body
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| May 20, 2019 at 7:10 | comment | added | R.. GitHub STOP HELPING ICE | You need serious propulsion technology and energy to accelerate continuously at 1g for years or even days, but I find that kind of advancement more plausible than the technology to make a generation ship without an overwhelming chance of catastrophic failure. See the linked answer above for details on the relativistic stuff. | |
| May 20, 2019 at 6:39 | comment | added | Matt Skeptic | Hello R. Sorry, I thought you were saying that light speed is possible. But I'm not sure what you are saying. Are you agreeing that the idea is impossible? I'm genuinly interested to know what technology you have in mind (if any) that can propel a space ship to the speeds required. Current estimates (which are quite variable) say that a journey of at least 60,000 years will be necessary at currently achievable speeds for small modules. We still have no target planet even at that perimeter of exploration. If you could just name it I will go and read about it. I'm still very skeptical. | |
| May 19, 2019 at 14:04 | comment | added | R.. GitHub STOP HELPING ICE | See this answer on sister site astronomy: astronomy.stackexchange.com/a/14562/2803 | |
| May 19, 2019 at 13:58 | comment | added | R.. GitHub STOP HELPING ICE | @Matt: Please don't put nonsensical versions of physics in my mouth. This answer is 100% grounded in relativity. The "from your frame of reference" part is critical. | |
| May 19, 2019 at 9:26 | comment | added | Matt Skeptic | We can't keep accelerating against inherent inertia at 1g until we reach the speed of light. We can't even accelerate sub atomic masses to anywhere near that speed. Light speed is generally accepted as being impossible for anything except light. | |
| May 17, 2019 at 17:33 | comment | added | R.. GitHub STOP HELPING ICE | @Inarion: 1g reaches near speed of light very fast. It does not take 1000 years, from your frame of reference as the traveler, to travel 1000 lightyears. | |
| May 17, 2019 at 9:38 | comment | added | Inarion | To even reach the closest destinations in our stellar neighbourhood (with distances in the order of 10 to 100 lightyears), we'd have to reach some significant fractions of the speed of light to get there in a few hundred years. Anything further out than 1000 lightyears will be for the foreseeable future (correct me if I'm wrong) impossible to reach in less than 1000 years. Unless you want to include FTL travel... (but then again, there's that science-based thingy...) | |
| May 17, 2019 at 2:46 | history | answered | R.. GitHub STOP HELPING ICE | CC BY-SA 4.0 |