9bananas

joined 1 year ago
[–] 9bananas@lemmy.world 1 points 2 days ago

FYI: it really shouldn't...

[–] 9bananas@lemmy.world 15 points 3 days ago (4 children)

you can just say season 8, but why would you, when a "a shit of ice and fire" is available as drop-in replacement?

[–] 9bananas@lemmy.world 7 points 2 weeks ago

may i offer you a cactus in these trying times?

[–] 9bananas@lemmy.world 47 points 3 weeks ago (3 children)

this is exactly, and i cannot stress enough just how exactly, the plot of "Don't look up"

[–] 9bananas@lemmy.world 2 points 3 weeks ago

the ejecta themselves would definitely pose a danger, but air supply running out would probably kill you before they impact the moon.

the distance between earth and moon is already significant, the angle shown in the picture is pointing away from the moon, most of the mass would stay in the same place due to gravity pulling everything back together, the orbital path the debris has to take in order to impact is gonna take multiple orbits for most of the debris, and only a fraction will impact on the site pictured.

still dangerous, but not as immediately as one would think.

the only significant projectiles would be a small portion of the debris just off-center from the exit crater (the sort of "cork" shooting out):

  • some of that mass would be going the right way
  • some of it will be going the right speed to arrive in time before air runs out
  • and some of that is gonna rain down roughly in the area the picture was taken at

so it would only be a fraction of a fraction of a fraction that even has a chance of coming down onto the astronaut pictured, but that's still gonna be enough to be dangerous.

it's also gonna take a couple days to arrive most likely; the debris is not gonna come straight at the moon, because by the time it makes it there, the moon would have moved and it would miss.

a vanishingly small fraction will move fast enough to impact on a (mostly) direct trajectory. those impactors will still take at least a couple hours, even at close to relativistic speeds, and it'll consist almost entirely of dust and tiny micro meteorites. the fast movers have to be tiny, because anything larger would be torn apart by the acceleration.

(...actually I'm not sure any material apart from more exotic states of matter like nuclear pasta (which doesn't exist on earth. yes, that's an actual technical term) could even theoretically be accelerated to a significant fraction of c in the presumably less than a few seconds pictured above without being torn apart at the atomic level...and dense material experiences greater gravitational pull, so it would have a harder time reaching the moon...)

in order to impact, the vast majority of the debris would need to move on parabolic trajectories, and most of those will take multiple orbits in order to impact.

during those orbits, most debris will be pulled back onto earth, or in orbit around earth, since it's gravitational pull is so much greater than the moons. add another fraction to the ones above ;)

we're still missing a bunch of considerations, but I'm gonna stop here.

point is: as pictured above (apart from the impactor being impossibly dense) the danger to someone on the moon is mostly manageable and secondary to the danger of supplies running out.

[–] 9bananas@lemmy.world 6 points 3 weeks ago

probably radiation:

that kind of impact is gonna tear apart a lot of atoms and the energies involved would create high temperature plasma; basically a very big fusion bomb...

[–] 9bananas@lemmy.world 2 points 4 weeks ago (2 children)

eh...given the distance and the weird orbits it's gonna take for the debris to actually hit...a few days probably?

couple of days for the bombardment to hit the surface, and then it's a game of statistics how long it takes for a direct hit or secondary ejecta to hit your landing site/base.

probably a better idea to take all the fun pills all at once than to wait for that...

actually, you can probably simulate this rather well in universe sandbox! ;)

[–] 9bananas@lemmy.world 2 points 1 month ago

thank you very much!

also: ha! i'm doing the same thing! currently at book 2 ;)

[–] 9bananas@lemmy.world 3 points 1 month ago (2 children)

you probably already know this, but for anyone else:

The Cosmere Series (of which the Mistborn Saga is a part of) does heavily feature Sci-Fi as well as post-apocalypse themes alongside (mostly) fantasy (Sci-Fi: the sunlit man, tress of the emerald sea; post-apocalypse: Stormlight Archives, Yumi And The Nightmare Painter), which made me think OP was talking about this series specifically.

In some of the other books it is mentioned that all of the powers originally came from a being called Adonalsium (basically God). what fuels all these manifestations of powers is called Investiture. Each Shard of Adonalsium manifests different Powers, Allomancy is just one of them.

so it's a unique mix of classic fantasy, sci-fi, and post-apocalypse genres in a single gigantic saga, in which the sci-fi and post-apocalypse themes are intentionally kept vague and in the background.

highly recommend all of the other books!

they are great in their own right, and also give a LOT of extra bits and peaces of the overall lore!

what's best about the series is, as you've already explained, the "hard-fantasy/sci-fi" approach to powers: all power requires some kind of source, everything comes from something.

best to do the Stormlight Archives after Mistborn (either order works), then the rest; order doesn't really matter, although i recommend Tress of the emerald Sea and The Sunlit Man to be read last, because they contain a lot of sci-fi lore, which is best enjoyed last (imho)

also: Stormlight Archives Book 5 is coming relatively soon, i think it's december?

[–] 9bananas@lemmy.world 1 points 1 month ago (1 children)

i mean you weren't actually off on the altered carbon, it just isn't described in as much detail, but is effectively the same thing ;)

Thirteen, also by richard morgan, features similar themes as well!

[–] 9bananas@lemmy.world 1 points 2 months ago (1 children)

you forgot the necrophilia in Under The Dome! ;)

[–] 9bananas@lemmy.world 4 points 2 months ago

not true; that's a developer thing, not steam itself.

steam offers it as an option, it doesn't force developers to use it.

plenty of games bought on steam can be run entirely without steam.

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