Timeline for Terraform Mars or Dyson Ring?
Current License: CC BY-SA 3.0
30 events
| when toggle format | what | by | license | comment | |
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| Jun 23, 2018 at 13:44 | comment | added | Arvex | In a ringworld setup, gravity could be generated by rotating the ring. The problem is landing/docking ships with the ring due to the speeds it rotates at (atmospheric entry would be violent.) My (complicated) solution was to have a series of maglev rails along the outer surface with docking modules that ride across the outer surface opposite the rotational velocity of the ring, making them appear stationary compared to the ring. Ships dock with these "docking trains" and they decelerate, allowing them to connect to docking ports on the ring itself. Docking this way would take a while, though. | |
| Jun 23, 2018 at 10:56 | answer | added | Old Fart UK | timeline score: 0 | |
| Sep 30, 2017 at 23:45 | comment | added | M i ech | @A.C.A.C. And what about thickness? | |
| Sep 30, 2017 at 17:42 | answer | added | pojo-guy | timeline score: 0 | |
| Sep 30, 2017 at 15:43 | history | reopened |
anon Thucydides a4android L.Dutch♦ Bellerophon |
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| Sep 30, 2017 at 2:40 | comment | added | Brythan | Why would you construct a Dyson ring in the area of the asteroid belt? How would you provide gravity? How would you keep the ring at a stable distance from the sun? How would you keep the ring from falling apart? A Dyson ring is a theoretical construct. We don't actually know that they are possible. The original version of a Dyson sphere (just a bunch of habitats blocking the sun) would be much more feasible. Terraforming Mars like that would take a long time. To impart that much spin would create a lot of heat, which would need to radiate away. | |
| Sep 29, 2017 at 23:08 | review | Reopen votes | |||
| Sep 30, 2017 at 15:43 | |||||
| Sep 28, 2017 at 21:11 | history | closed |
sphennings Mołot Green MozerShmozer AngelPray |
Opinion-based | |
| Sep 28, 2017 at 18:15 | comment | added | A. C. A. C. | @anon I did some basic calculations and it seems like there would be more than I originally thought, so ignore what I said. You can build a ring about 1-10km in width around the sun from asteroids at 1 AU based on very basic napkin math. | |
| Sep 28, 2017 at 17:45 | comment | added | anon | @A. C. A. C. well that would be a good start in mathematically disproving that scenario if that's right. | |
| Sep 28, 2017 at 17:26 | history | edited | anon | CC BY-SA 3.0 |
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| Sep 28, 2017 at 17:01 | history | edited | anon | CC BY-SA 3.0 |
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| Sep 28, 2017 at 16:59 | answer | added | Thucydides | timeline score: 2 | |
| Sep 28, 2017 at 15:49 | comment | added | Karl | Well, turning mars into hell is certainly not useful. | |
| Sep 28, 2017 at 15:48 | comment | added | anon | @A. C. A. C. That amount of matter would ultimately determine the extent (width) of what could be done with the ring which should certainly factor into your answer | |
| Sep 28, 2017 at 15:44 | comment | added | anon | @Karl Because that is the creative limitation I imposed. | |
| Sep 28, 2017 at 15:38 | comment | added | Karl | Why are those two the only possibilities? | |
| Sep 28, 2017 at 15:23 | answer | added | L.Dutch♦ | timeline score: 1 | |
| Sep 28, 2017 at 15:21 | history | edited | L.Dutch♦ | CC BY-SA 3.0 |
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| Sep 28, 2017 at 15:18 | comment | added | user | @sphennings Ah, well, okay. OP was talking about Mars and I guess I read too much into that. Even so, stating your assumptions in the initial comment would have avoided the confusion. Just a gentle suggestion for next time. :-) | |
| Sep 28, 2017 at 15:15 | comment | added | sphennings | @MichaelKjörling I'm confident with my numbers. A dyson ring is (generally) considered to be 1AU from the sun so a diameter of 2 AU. | |
| Sep 28, 2017 at 15:12 | comment | added | user | @sphennings I fear you may be misunderestimating the scale of space. (Don't worry; I think we both know that's easy to do.) Assuming our solar system (which seems a reasonable assumption to make here), 300M km diameter is pretty much exactly Earth's orbit; Earth has an orbital radius around the Sun of 150M km or 1 AU. Did you by any chance mean 300M km radius? That would put you a shade outside of Mars' aphelion which is at just under 250M km from the Sun, and (I'm guessing a little, here) probably smack in between Mars and the appreciable portions of the asteroid belt. | |
| Sep 28, 2017 at 15:08 | review | Close votes | |||
| Sep 28, 2017 at 21:11 | |||||
| Sep 28, 2017 at 15:06 | comment | added | A. C. A. C. | there isn't actually that much matter in the asteroids belt. | |
| Sep 28, 2017 at 15:05 | answer | added | SMEAT | timeline score: 3 | |
| Sep 28, 2017 at 14:59 | comment | added | sphennings | @AngelPray There is a big difference between a ring that is 5,000 km in diameter and one that is 300,000,000 km in diameter. | |
| Sep 28, 2017 at 14:55 | comment | added | AngelPray | @sphennings No, but they do support habitable sections. That was the comparison OP was making. | |
| Sep 28, 2017 at 14:51 | comment | added | sphennings | The rings from Halo aren't Dyson Rings. | |
| Sep 28, 2017 at 14:37 | comment | added | user | Can you give us some reasonably objective criteria by which we can judge how answers meet your "greatest enhancement for mankind" requirement? As it stands, I'm afraid this might still be a little too opinion-based (even though it's clear that you are trying). | |
| Sep 28, 2017 at 14:33 | history | asked | anon | CC BY-SA 3.0 |