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2

Adding to L.Dutch's answer. I think this situation is worse than a Cold War-esque arms race. I think you are looking at inevitable total war. You will see hegemonies form, analogous to NATO and the Warsaw Pact. Then, someone on Side A will use a banned weapon. Maybe it's an accident, maybe it's on purpose, it doesn't matter. Side B will decide it was ...


3

The edict is enforced by a mysterious group. The Watchers date back to the late 23d century - a group which took possession of all remaining weapons and which dedicates itself to preventing their future use. The Watchers themselves are enigmatic - it is not clear where new recruits to their numbers come from, or if there are new recruits. Some Watchers ...


9

I see an issue. A prescription is enforceable if the sanction for not observing it is deemed realistically executable. When you prescribe exotic weapons may be utilized in the purge You are basically stating "having exotic weapons is forbidden, and if you do, I will use my exotic weapons to punish you". This is a logical shortcircuit, because every ...


2

There is no particular reason to think that the region beyond the disk of a ring singularity must differ in its physics in any way other than the incidental shape of spacetime, and associated distribution of mass and energy, producing a naked singularity. On the scale of biochemistry, that larger-scale structure of space is pretty much irrelevant. If the ...


2

Stable orbits in the ergosphere of a Kerr black hole are possible. The users in one of the sister sites have some maths showing how. Inside a Cauchy horizon, things would even be spacetimely chill - you wouldn't be forced to necessarily move through time-like dimensions only. Once you have planets, and an energy source (infalling radiation from outside the ...


9

Saturn Cloud Deck Topography Where is worth living in this vertical real-estate column? Here is some data on how temperature and pressure vary with altitude, and some interesting landmarks along the way. Interesting Places : 5 atmospheres (5 bar) : inside the ammonia and hydrogen sulfide cloud decks, so that something useful might be harvested. 5 ...


0

(Thanks to aesob for indirectly giving me this idea!) So... your ship arrives in orbit. All is (apparently) well. The initial survey team does everything By The Book. The initial habitats are up. It's time to wake up the first bunch of colonists... ...And that's when it all goes Horribly Wrong. Maybe a cryopod was sabotaged or just defective. Maybe all ...


1

How old is your colony ship? Assuming it left earth at slower than light speed travel, decades or centuries of wear and tear alone could have caused enough problems to systems that people cannot live in the ship and need to be quickly brought down to the surface. Another possibility is that the landing ship is struck by an object or has a malfunction (again,...


1

Damaged heat shield Landing is a really dangerous time for any spacecraft. The crews of both STS-107 and Soyuz 11 died during reentry, with the Space Shuttle Columbia (STS-107) being destroyed. Columbia suffered damage to its heat shield on takeoff. Below is a recreation of the damage (source). It may not look like much, but even a generation ship could be ...


2

Something caused by the passengers waking up. Since they presumably traveled for years in cryosleep, and the automated systems functioned for weeks or months after arriving at the planet, the problem probably isn't mechanical or it would have happened earlier. This must be a problem that only occurs, or only matters, once passengers are awakened. Some ...


0

Dutch scientists already experimented with ultraviolet lasers that can split co2 into oxygen and carbon. But why do that when plant life can do it for you. In an atmosphere made of majority CO2, plants would grow like crazy. Algae and cyanobacteria would also proliferate in this environment.


4

Temperature differentials. https://www.youtube.com/watch?v=hbAbmI9iA14 Depicted - a liquid oxygen tank vents, and the supercold gas produced hugs the ground. You can see it because it is making the moisture in the air condense. I hope no-one was having a smoke break during this; they would have gone thru their cigarettes fast. You could do something ...


4

An atmosphere with 7% CO2 is already toxic for humans. 80% CO2 will be therefore lethal. That apart, diffusing oxygen in a local way it is surely possible, however mind that any local excess would result in an increased fire hazard. Moreover, going from 0 to 20% concentration requires a different flow than what is needed to replace what humans consume with ...


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