/sci/ - Science & Math

>>15365033
hello?

The fuck was that?
>>15365022
What, a hundred meter thick steel cockhead on the front of your ship?

>>15365033
Venus posters you dropped your crowns, kings

>>15365034
hi

>>15365034
we appear to have faulty staging

>>15365037
what if we ablate the atmosphere instead of the ship

>>15365037
No, more like a hundred meters of ice.

>>15365034
>thread get nuked
>thread gets unnuked
huh?

nth for Uranus lasers

>>15365041
>the atmosphere
The atmosphere of the countless random particles in the interstellar void?

venus is a planet covered in braps you all are disgusting for wanting to colonize

im beginning to think that we'll be lucky if it clears the launch site

>>15365045
>40,000s isp
ooo

>dabs in your launch

>>15365049
It’s not about colonization
It’s about sending a lander
>joker.jpg

>>15364867
Right now there is a Cassini-tier mission for Uranus in the early dev stages, unfortunately it will take forever for a Neptune one unless someone with the money does it

if only we could power spacecraft with janitorial seething

>>15365055
and remember, dragonfly which wont even visit the fucking lakes is going before this

>>15365054
>It’s about sending a lander
With colonizers and colonization equipment.

>>15365037
You just deploy big discs of aerogel far in front of the ships so any dust grains turn to plasma and deal with that electromagnetically

so, where you from

>>15365033
Hey guys, where do you get your /sfg/ information? Besides the NASA site, JPL site, and https://ntrs.nasa.gov/ (technical report server) I have no idea where to read more about this stuff. I'm planning to look into Zubrin's work this summer after college, but I don't know where else to start regarding new info and news.

I give it 3 months between Starship is flying customer payloads and the NRO flies something on it. I bet they're working on the next gen of spy sats right now for that fairing size and weight class.

>>15365067
it occurs to me in my dreams

>>15365052
beetles WON
valves WON
engineering LOST
space LOST

>>15365067
twitter for news, google and chatgpt for technical info (or just asking /sfg/)

>>15365067
New info and news is left as an exercise to the reader.

>>15365067
twitter and youtube

>>15365067
Atomic Rockets (the website) is a fantastic starting point.

>>15365051

Is there any way to sugarcoat all this?

>>15365076
>youtube
state your channels. now.

>>15365082
this one is pretty good https://www.youtube.com/@SpaceX

>>15365082
issac arthur

>>15365067
https://www.b14643.de/
http://www.astronautix.com/s/soyuz.html
https://www.russianspaceweb.com/site_map.html
http://projectrho.com/public_html/rocket/

The 31 engine static fire went well . Why did the valve cause issues this time?

>>15365087
>>15365086
ok i thought you were gonna bring up le pop sci channels or even worse... NSF

>>15365099
>isaac "just shift that galaxy bro" arthur
>not pop sci

>>15365082
Marcus house isn't terrible for a quick 5 minute catch up once in a while

>>15365101
i dont pay attention to literal whos

>>15365070
>>15365072
>>15365076
I suppose that works
>>15365073
I guess I shouldn't be suprised
>>15365078
I should have bookmarked that website ages ago. But would you reccoment any particulat books for the basics? I often can't keep certain terms like ISP standarized.


By the way, /SFG/, are there any books you are reading or plan to read this summer? I finished Asimov's "The Gods Themselves", and am working on finishing The Moon is a Harsh Mistress, an interesting perspective on AI and polyandry on the moon. Then it's onto Children of Tome and Ringworld. I'd be interested in what you guys are reading, and what you'd reccomend.

>>15365093
A wizard broke it.

>>15365107
i dont read books unless theyre textbooks

>>15365107
back to /lit/

what happened to ksp2?

We got blue balled

Why did he do it?

>>15365115
it was shit

>>15365107
Gateway, Space Merchants and The World at the End of Time by Frederik Pohl

>>15365115
They released a dev build for $50

>>15365117
too many people used -novid in the launch options

https://twitter.com/AvWeekGuy/status/1648002541777571841
>@LockheedMartin unveils updated nuclear powered Mars Base Camp concept vehicle as it builds up space nuclear capability for @NASA and @DARPA requirements #SpaceSymposium

>>15365113
I don't use /lit/, they come off as too pseudointellectual.

>>15365115
unironic dogshit

gravitar is is a man's space game

>>15365124
where do you think you are?

Hold up, astroforge launched its first mission a few days ago and no one has said anything?

This is a company working on asteroid mining tech, this is HUGE

>>15365033
wtf happened, why was it just archived?
fucking mods, could have at least staged

>>15365130
>asteroid mining
>literally 20 years off minimum
ngmi

>>15365130
just another scam

>>15365128
Does anyone know who illustrated these covers? I always thought they were beautiful.

>>15365130
what was the mission about? they seem to be in a semi-stealth mode still from the obscurity of their website
not much to talk about yet

>>15365135
you would like this, It's a great book https://www.amazon.com/ART-ATARI-Limited-Deluxe-Lapetino/dp/1524102113

>>15365093
ULA snipers had time to prepare

>>15365066
My mother

>>15365104
Based, would get drunk with

>>15365123
is that a picture taken from a fucking screen? what a boomer lmao
also that pic looks like something from the 60s lol

So those sea level raptor covers, are those brand new? I’ve never seen that before

>>15365148
frfr

would china help spacex with mars?

>>15365151
No cap

>>15365148
i heard even zoomers dont know about print screen. many of them hate computers and know very little about them.

>>15365152
No.

>>15365123
> basic bitch NERVA
how quaint

>>15365123
>>15365159
NERVA + Orion + TransHab + Copernicus derived droptanks + Cygnus derived solar panels

>>15365159
There's NTR and there's NTR

https://en.wikipedia.org/wiki/Project_Timberwind

Kill itoddlers. Behead itoddlers. Roundhouse kick an itoddler into the concrete. Slam dunk an itoddler baby into the trashcan. Crucify filthy itoddlers. Defecate in an itoddlers food. Launch itoddlers into the sun. Stir fry itoddlers in a wok. Toss itoddlers into active volcanoes. Urinate into an itoddlers gas tank. Judo throw itoddlers into a wood chipper. Twist itoddlers heads off. Report itoddlers to the IRS. Karate chop itoddlers in half. Trap itoddlers in quicksand. Crush itoddlers in the trash compactor. Liquefy itoddlers in a vat of acid. Eat itoddlers. Dissect itoddlers. Exterminate itoddlers in the gas chamber. Stomp itoddler skulls with steel toed boots. Cremate itoddlers in the oven. Lobotomize itoddlers. Mandatory abortions for itoddlers. Grind itoddler fetuses in the garbage disposal. Drown itoddlers in fried chicken grease. Vaporize itoddlers with a ray gun. Kick old itoddlers down the stairs. Feed itoddlers to alligators. Slice itoddlers with a katana.

>>15365166
>ground-started NTP sustainer stage
Did Zubrin write this?

>>15365171
a 30 to 1 thrust to weight ratio leads to abilities that some may find... disturbing.

>>15365155
yeah I've heard the same, do everything on the phone or a tablet

what if, now hear me out here, we moved all of the asteroids incthe asteroid belt to ceres or harvested them so that ceres cleared its orbital path? then its a planet

>>15365179
anon...I...

>>15365179
In that case humans would have cleared Ceres' orbit for it, so in fact we would be the planet

>>15365179
Asteroids are very massive.
We probably aren't moving them very far without Gravity assist trickery.

>>15365179
Soo.. with that logic that means that we could move some asteroids near Earth's orbit so that its orbital path is not clear and, thus, Earth will not longer be considered a planet?

>>15365033
You are never ever leaving this plane alive sciencebois. Feels good to be a flat earther today.

You'll just have to wait for CGI to become indistinguishable from reality. Might be a while :)

>>15365188
by definition that is what a dwarf planet is so yes
>>15365186
just attach an ion thruster on lmao

https://www.nasa.gov/sites/default/files/atoms/files/niac_2012_phaseii_slough_fusiondrivenrocketneclearpropulsiontagged.pdf

Pulse-fusion engine that is actually feasible with current technology for a Mars mission. Research abruptly halted after some compression experiments, it seems funding was cut.

>>15365190
it wont be though, AI is advancing so quickly you can basically create photorealistic pictures already
soon you will be able to create photorealistic video

>15365190
who is this faggot?

>>15365192
Was funding cut or was it black projected

>>15365107
The Invincible by Stanislaw Lem, really good but with a slight anti-expantionism tone "not everything everywhere is for us"

>>15365192
>fusion

>>15365184
Kek

>>15365195
read the file name then look at post count

>>15365198
Lmao gottem again. I fucking love this image

>>15365194
Musk will send people to Mars and there will be a group of people that will claim it's fake no matter how much evidence he produces. lol

>>15365192
>it seems funding was cut
lmao, like pottery, every single space research/endeavor that has ever existed always ends up that way lol

Okay not to be a schizo tin foil hat guy but I guarantee you had National Team won the primary HLS contract, NASA would be sucking its cock on social media every time they screwed in a bolt or rotated a piece of metal.
Starship almost FLEW today and it’s crickets from NASA’s end…

>>15365194
>able to create photorealistic video
God, imagine the possibilities. Also, what's next after this? AI-generated video games? books? languages?

>>15365198
Retard, did you even read the pdf? It's nothing too exotic, like fusion reactor propulsion. It's just the pulsed compression of deuterium with lithium foil.

>>15365208
Not NASAs fault Musk tarnished his brand by being a sperg

>>15365192
It really hasn't been demonstrated that it is feasible. There are lots of "disruptive" fusion concepts which emerge and then trail off into infinity. If it was obviously plausible they wouldn't be applying for silly little awards like NIAC.

>>15365209
yes to everything

>>15365210
>It's just the pulsed compression of deuterium with lithium foil.

why do we have to send fucking Jared Isaacman to space out of every other available option?
money = fame it appears...

>>15365216
Because he has faith of the heart

>>15365216
because hes a jew

>>15365216
because he believes in MUSK and the MISSION

>>15365216
Annoyed that Scott didn't make dear moon

>>15365216
because hes one of the chosen

>>15365194
>it wont be though
You might just be right fren.

why explore real spess when you can explore fake spess

>>15365067
>>15365107
http://www.marspapers.org/
Also, remember that Ignition! is required reading for /sfg/.

>>15365236
Your fake space model will only be as good as your knowledge of the real thing. Unless you want it to be different on purpose. In which case go play no man’s sky and fuck off

>>15365216
Because he is paying for it. Don't like it? Put up the money and fund your own trip. Can't afford it? Start a company or do something to build wealth.

I would say your other option would be to work real hard to develop skills and try for an astronaut program, but I am not sure merit is enough to succeed in one of those these days.

>>15365240
y u so mean

>>15365216
>the goyim are desperate to leave this planet
Not so fast.

>>15365237
>Sicut In Caelo Et In Marte: Implementing A Catholic Diocese Of Mars
holy based

>>15365202
yes, but this would have happened regardless of the photorealistic AI or not

>>15365244
>Implementing A Catholic Diocese Of Mars
the fuck?

>>15365242
Sorry bud I’m just worked up, don’t take it personally

>>15365213
The simulations do suggest feasibility, they're based on experimental models of magneto-inertial fusion and there's nothing to suggest these implosion models wouldn't generalize to higher temperatures. I do think it should be researched more.

>>15365216
because he paid for it and is willing to take the time to train and the risk for his life

Kino
http://www.marspapers.org/paper/Young_2021pres.pdf

>>15365249
I would post the pdf, but it's too big, if you can believe it. Seems autistically detailed (calendar integration etc.)

>>15365244
Nice. Ancient Latin Mass only though, none of this guitar-clapping hands shit

Rate my art

we have to colonize umbriel

>>15365262
kys/10

>>15365262
live forever/10

>>15365244
We are going to make it

>>15365244
Skimmed through it, it sounds absurds and still does, but its probably one of the most based documents i've seen so far

lol the thread before the launch had more replies (1506) than the thread during the launch (1481). WTF
>>15365033

>>15365237
what does that even mean, isn't that just church but fancy? And even if people go to mars at some time do you really think God will care about them?

>>15365237
>Ignition!
link just because I'm lazy?

>>15365270
There was a separate stickied launch thread and we had image limit mod staging so… kinda skews the numbers lol

>>15365272

>>15365271
The Catholic church is split up into diocese. I believe the Diocese of Orlando technically has jurisdiction over the Moon.
Yes God cares he wants humans to explore what he made for us

>>15365244
Now this is interesting.
>new Bible translations required to keep people from going "lol Mars is in heaven your religion is invalid"
>putting the work in on gravity changes and oxygen consumption budgets

>>15365272
be warned anon, it isn't light reading

>>15365037
you just have your ship spin super fast so fucking simple

>>15365285
we can't even extend human life past 140 and you fuckers want to go into space, why not focus on the task at hand and fuck up the cosmos later?

Spaceflight as a concept is innately flawed because it requires very different people to what we operate with nowadays

>>15365287
It sort of is. The only challenging bits are the chemical names but if you keep a computer handy to look them up that's not bad.

>>15365237
>Running To Mars: Exercise Countermeasures For Mars Astronauts
When did we learn this was suboptimal and that lifting was what was needed?

>>15365292
Yeah it requires AMERICANS.

>>15365216
dilate kek

>>15365282
Not what I expected

>>15365282
thanks bro

>>15365294
>tethers

>>15365292
The task at hand is to expand christendom. We’ve pretty much maxxed out religious geopolitical borders—and the west is turning gay and atheist so now we must now expand and settle new worlds
Globohomo is the great filter, if you believe in that popsci kind of thing

>>15365297
Nazis put humans on the moon, and Nazis will put them on the moon again

>>15365294
It was something learned from ISS experimentation. The Shuttle by itself wasn't long duration enough and Mir was too shitty.

>>15365285
No Catholic ever went to the moon

Transporter-7 second stage over Alaska.

https://www.youtube.com/watch?v=ZBgcAUUStho

Juice liftoff

https://shop.spacex.com/collections/accessories/products/starship-chrome-model
why would i buy this

>>15365067
Liftoff by berger is great if you like early spacex history. He'll have a new book about the development of falcon 9 coming out soon.

>>15365309
but a lot of freemasons unironically did.

>>15365317
why would freemasons want to go to the moon?

>>15365321
Ask Buzz.

>>15365311
really fucking trippy

>>15365314
why would I buy that when I know they will change the design again. Also that looks like plastic with a chrome layer. For $300 I'd make you one out of solid SS

>>15365303
Don't need meme materials for Mars you spacker

>>15365322
im asking you.

>>15365297
what a shame you fuckers killed them all
>>15365306
christianity is a dying faith exactly because it expanded so frivolously and allowed too many cunts to be priests. It's dying just like monopolies are, if you catch what i mean.

>>15365314
>>15365325
Wait for estronaut to come out with one.
He makes a full metal F9 model. That Starship has no textures looks like shit

>>15365130
I'd bet a million bucks that it's just a tiny furnace and an off the shelf spectrometer. It sounds like the technology they're """developing"""" is basically fractional distillation but for mining.

They're buyout bait. Wanna know how you can tell? Go look at the career section of their website. They're only hiring for advanced engineering positions. Not a single engineering technician or manufacturing engineer position to be found, and none listed as employees on their Linkedin either. If they were actually interested in building stuff, they'd be hiring people who know how to build stuff. Instead, they're just hiring people with fancy degrees so they can look attractive to potential buyers while they cobble together barely functioning "technology demonstrator" missions.

>>15365244
>holy based
yeah that's a good description
reminds me how Buzz brought communion wine and bread but the NASA eggheads wouldn't let him transmit the communion for the world because atheist activists would sue

>>15365327
Give up your inquiries which are completely useless, and consider these words a final warning. We hope, for your own good, that this will be sufficient.

>>15365335
riiight

>>15365327
I don't know. I'm saying ask Buzz because he would know.

>>15365262
Dangerously based

>>15365244
VGH

>>15365326
>>15365330
yeah im not buying it. i dont know why they are trying to grift so hard for so little

>>15365210
Any fusion thruster is a fusion reactor we could build on Earth and run in a vacuum chamber for providing grid power.
The only exception would be a plasma thruster which runs hot enough to get an appreciable fusion gain but relies totally on solar or some other power source to operate, which the fusion reaction merely increasing the thruster efficiency. A Q0.5 to Q5 fusion system would fit into this category, as the fusion gain factor that is typically considered viable for a self sustaining reactor is greater than Q5.

The reason I doubt that concept is because if fusion were as simple and easy as crushing lithium foil around deuterium, we would be doing it on Earth by now (barring conspiracy nonsense). More likely, what occured was they designed the mission around the fusion concept, built a lab scale test rig, discovered some kind of major electromagnetic instability that would make fusion gain impossible to achieve, and went ah shit nvm.

>>15365334
Victor Glover wants to do the same thing on his mission

>>15365244
we need a church of /sfg/ pdf made in the same manner

>>15365216
He's not being sent by us, retard. He bought a seat on someone else's rocket and now you're seething. I fucking hate envious little dweebs like you.

>>15365345
I suspect they realized they were bombarding the engine with neutrons and it broke.

I want Manifest Destiny IN SPACE

>FULLY
>AND RAPIDLY
>REUSABLE
https://twitter.com/CSI_Starbase/status/1647945659591344135

>>15365339
Kinda cringe ngl

>>15365349
>t. big nosed prick

>>15365266
I used to be an ET for Spacex (no im not gonna post proof) and one time we were on this insanely important Zoom call with an engineer in Spain trying to diagnose a problem with a broken piece of manufacturing equipment. In the middle of the meeting his phone alarm went off and he said "oh, Siesta. Be back in an hour", sparked a cigar, and ended the Zoom call. I think about that guy basically every day. What a Chad.

>>15365303
you could build a space elevator on mars out of steel, might not be worth it though ever

>>15365339
The reaction this image gets from Vtuber simps is funnier than than the image itself

hmm

so just because search engines are giving me bullshit answers... when is starship going to fly?
tomorrow?

>>15365360
earliest on wednesday, but probably thursday

>>15365252
You'd be surprised how bad we are at simulating plasma physics. We can't model it well enough to predict the behavior of plasmas at higher temperatures and pressures even inside experiments we've been operating for decades. That is to say, you have 25 years of experience running a tokamak at 50 million kelvin, and when you go to 75 million kelvin suddenly your plasma is doing weird squirrelly shit out of the blue.

>>15365339
Blue foxes are so based, post more. It makes anime tards seethe!

>>15365359
delete the fucking helium bubblers already elon.
best part is no part.
also shit's expensive

>>15365364
Yiff in Hell

>>15365317
>freemason moon landing ritual
I wish that moon hoaxers believed in the 'moon landing was a freemason ritual to gain world power' conspiracy instead. It's objectively a much better and more interesting conspiracy theory.
does anyone have that comic strip where it's explained btw?

>>15365263
Yes, along with all of the Uranian moons

>>15365367
>the year of our lord 20xx
>not pressurising your tanks with exhaust gas

>>15365362
fuck
well I guess it's worth to wait for history...

>>15365359
Wait I thought they got rid of the helium?
Or is that just for the new ones

>>15365363
>You'd be surprised how bad we are at simulating plasma physics
speak for yourself physicslet

>>15365309
Yeah I know

>>15365373
>>15365377
they are pressurized autogenously.
the helium is percolated through the liquid propellant for temperature conditioning.
they should figure out how to delete it.

THE GREAT REFUELING BEGINS

>>15365364
>As soon as the animetard sees this, he reaches for his folder of angry Vtuber reaction images, helpless to do anything to stop her besides a useless attempt to be annoying

>>15365381
Nuclear bombs are much less complex than tokamaks

>>15365346
BASED I love him so much, I hope he broadcasts it. He cannot be cancelled

>>15365384
>the helium is percolated through the liquid propellant for temperature conditioning.
as in to stop the lines from going rom temp to very chilly too quickly?

>>15365386
They really need to start on that on site refinery or at least lower costs with Tesla Semis

>>15365332
oh that makes sense, I thought from the website that they were still just in stealth mode or something and didn't want to talk about the tech too much to reveal stuff to potential competitors
but what if the are still in deep development?
just testing out ideas, the few prototyeps can be made by the engineers themselves

I just got here, where are we? Did it launch yet?

>>15365397
>did it launch yet?
owari da.. two more weeks..

>>15365388
BASED BASED BASED BASED BASED

>>15365356
KEK that’s hilarious
Remember that it’s a double-edged sword though. I’m pretty sure one of the main reasons the France-Australia nuclear sub deal fell through was because all the Frenchies just fucked off from the negotiations for three months to take that stupid vacation thing they do so Aus just went to the US instead
But there’s nothing wrong with a daily siesta that needs to be normalized

>>15365392
No it actually cools down the propellant. I dunno how that shit works
http://www.i-asem.org/publication_conf/anbre15/T3I.5.AS506_2076F1.pdf

>>15365388
I dont really care about the vtuber war,but I wanna fuck that fox

>>15365398
Damn, thats kind of a setback for my Golgafrincham Ark Fleet Ship B fantasy of launching all the popsoi fags into wherever, IDK as long as its not here

oh hello krystalposter
is the anti-animeschizo still here? i remember 3-2 years ago he was obnoxious

>>15365388
>>15365339

The word based doesn't even begin to explain the artist behind these pics

>>15365350
A few hundred hours of hard neutron exppsure wouldn't be hard to design for. A power plant would have a problem. However, I don't think they ever achieved fusion with this concept whatsoever.

the whole essence of krystalposting has clearly been lost. sad to see

>>15365352
quick and dirty system while other engineering problems are solved, this one will as well (it might have already, but the current stack is quite old)

>>15365352
No part of that launch stack is reusable.

>>15365356
south europeans are lazy cunts

>>15365403
way beyond my braingrade but i think they mean bubbling helium from the bottom of the tanks and capturing it at the top wicks away some heat from the propellant. like blowing down a straw into a hot coffee. fuck knows how much difference this makes but it needs to be fucked off.

>>15365363
They can likely do it for a long time now, not years or decades, but much much longer think thousands of years. It is only now that the cattle get to use and experience it (Aquarian narratives)
https://www.youtube.com/watch?v=9q_IvxWoY4E

>>15365357
I think that's incorrect, Mars has lower gravity but not that low. Steel tether would work on the Moon, Mars would need kevlar or carbon fiber or similarly high strength to weight stuff. Not exactly meme materials but not ye olde iron wire either.

>>15365370
I gotchu anon
(n.b. Eagle did not go 'into the sun' it might still be in lunar orbit)

>>15365381
A fission bomb creates conditions which cause fusion, plus a huge overkill factor. You also do not give a shit what the plasma does other than having it hold together long enough to boost the yield %. In a reactor, you need to control the flow of a hot fusing plasma for indefinate periods using electromagnetic fields, which is extremely difficult.

>>15365386
Is some autist gonna count them so i don't have to?

Krystalposter and Clearposter are the same person

>>15365419
Yeah. As far I know a lot of rockets do this.
It doesn't get captured just adds to the ullage which is another reason to not do it cause you're wasting it.

>>15365381
That is not remotely close to an accurate representation of an actual device. The only thing accurate about that is P-239 and U-235 at the center. Besides that, everything else is misinformation.

>>15365419
im not being thick in thinking compressed gas expanding and forming bubbles will draw heat from the surrounding liquid am i? or am i?

>>15365388
Fuck off
This is an /sfg/ is an Irina board.

>>15365430
There's like ten krystalposters

>>15365438
Can't gaseous helium be colder than lox and methane?

>>15365432
also you won't have a reliable supply of helium anywhere but on earth and even here its running out fast.

>>15365403
>have helium in a bottle at like 500 bar
>helium bottle is inside a jacket tank with liquid nitrogen inside, cooling it down to about 100 kelvin
>helium flows up a thin pipe into the bottom of the propellant tanks
>the helium is flowed out of the 500 bar line into the propellant tanks, where it expands a lot due to pressure drop
>gas pressure dropping = temperature dropping
>extremely cold bubbles of helium rise thru the cryo propellants
>propellants are cooled down
This is kinda like cooling down a huge vat of molten sulfur by bubbling nitrogen gas up through it, except the temperatures are lower.

>>15365439
Literally who?

>>15365438
>>15365441
>>15365443
Yes except I don't think they actually use an LN2 jacket. Just room temperature.
I think I know about this from one of the Estronaut rocket CEO interviews.
Trying it find it.

>>15365420
Hey retard, you can build a fusor with a coat hanger and a vacuum chamber. Fusion is not hard. Fusion as a power source is hard. Every single fusion device ever made has consumed more electricity (useful energy) than it ever produced. This is true even of our net-gain fusion devices, like the recent NIST shot and fusion secondary nuclear weapons.

>>15365067
Common sense skeptic, esg hound, faa, thunderfoot

>>15365441
Yes.

desperate for attention anime fags know they have a captive audience in /sfg/ so they spam the thread with their jack off material and off topic circle jerking. they have no interest in the thread topic at all

>>15365450
just a large pressure differential is all thats needed surely? its a one time refrigerator. still needs to be fucked off.

>>15365440
Delusional

>>15365463
Away from Earth, the propellants will heat up way more slowly, because the tanks won't be immersed in a warm and dense atmosphere. A simple loop flow of propellants out of the tanks, down to a cryocooler reservoir, and back up into the tanks, will be good enough.

>>15365439
cute! do u have the sputnik one?

>>15365469
can't we just like, remove the atmosphere? that way it won't be a problem

>>15365461
I want to fuck the foxslut so I welcome others who spam Krystal

>>15365403
I'm working on a similar system for my student rocketry team (albiet using CO2). There are several mechanisms which are at play.

If the helium is introduced as a liquid, then most of the energy comes from the helium absorbing the heat from the propellant when it vaporizes.

If the helium is introduced as a high pressure gas, when the helium enters the lower pressure tank it immediately expands, a process which requires heat (which comes from the propellant). Also if the helium gas is accelerated through a nozzle when it is introduced, the helium will extract further heat from the propellant.

>>15365469
does helium being a lighter gas make a large difference over using say nitrogen which is also inert but far cheaper/less wasteful?

>>15365479
Yes, because it is less dense it will expand more than nitrogen which will lead to more cooling.

>>15365479
I think nitrogen gets absorbed by LOX.
Otherwise they would use it for F9 ullage.
Would be WAY cheaper than helium.

>>15365480
this is why i love this place. thanks this is a comfy discussion.

>>15365474
With no atmosphere on Earth, returning from orbit would be almost impossible.

>>15365482
That could also be true
https://ntrs.nasa.gov/api/citations/19850026994/downloads/19850026994.pdf

>The transfer of liquid oxygen (LOX) from a storage vessel to a rocket engine generally requires the use of a pressurizing gas at high pressures. The primary criteria for the choice of gas are low cost, safety, and immiscibility with liquid oxygen. Among the common gases, helium, nitrogen, and oxygen itself have been considered. Helium is expensive, and oxygen is hazardous at high pressures. The remaining gas, nitrogen, unfortunately is miscible with oxygen and causes dilution and loss of engine performance.

Even normies want to fuck her. I think the only other character that comes close is Lola Bunny from space jam (original, obviously)

>>15365485
>He doesn’t lithobreak

>>15365489
What does this have to with spaceflight?

>>15365489
>>15365475
Please touch regolith

>>15365493
>STAR fox

>>15365479
You cannot use nitrogen to bubble-cool liquid oxygen or methane, because nitrogen would contaminate liquid methane, and would freely mix with liquid oxygen (very bad). Helium is mostly used because it doesn't dissolve into cryogenic liquids much, so it doesn't contaminate them. A contaminated propellant gets poorer performance.

>>15365493
We don't talk about spaceflight here

>>15365489
Given his previous comments there is a larger chance than not that he wants to fuck her

>>15365499
Indisputable argument, I kneel

>>15365500
this is only a problem on earth, and can it be engineered away?

>>15365489
Post her naked, im fucking horny

>>15365486
Yup, LOX mixed with nitrogen is just cold air.

>>15365479
It's the lightest noble gas, meaning it's not going to hang itself onto every other fucking molecule in the universe like some old bar woman. Nitrogen is not a noble gas and will BLANDA UPP.

>>15365494
okay, now what?

>>15365499
So anything with >star in its name is relevant to sfg now? Or just shitty memes that furries forced upon this general?

>>15365513
kek

>>15365493
Seething vtuber fag

>>15365516
Krystal has been a part of /sfg/ longer than you

>>15365489
Janny the australians are at it again!

>>15365175
>only 30 to 1
jesus

so all those years of testing and they decided to let the valves just do w/e? ?? ?

>>15365520
Tricking people into clicking on krystal links is what /sfg/ is about. the joke is that it's like rick rolling. no one actually wants to click on it on purpose. you're a newfag spamming and samefagging about krystal thread after thread

>>15365526
The joke is that fags like you seethe at it

>>15365507
Yes, read this >>15365469

>>15365520
I've been on sfg since 2019 and I have always opposed krystal posting.

>>15365523
>The Valve Exploration Technologies Corporation (ValveX) is an experimental American valve manufacturer

>>15365522
That's the power of nuclear thermal engines when you build them out of nothing but reinforced carbon-carbon, and assume some optimistic performance.

>>15365522
That's actually insanely good for NTP because the propellant is so light (pure LH2). With 1ks Isp and 30:1 TWR you can SSTO with it.

bros I have an idea. get me Elon's cell number!

If it's humidity in the pipes causing issues, couldn't they pump anhydros ethanol through the system before the nitrogen purge and be rid of that pesky h2o?

>>15365216
>nooo space was supposed to be a communist utopia, you can't just let somebody pay to go to space!!!
lmao cope

>>15365555
checked

>>15365555
how many more problems do you want to introduce?
also witnessed.

>>15365434
source?

>>15365407
he was just banned yesterday for goreposting

>>15365434
how long did your Q clearance take to process anon? 6 months? Afraid mine will take that long too.

>>15365571
nothing a router reset won't fix

>>15365381
Shouldn't the tamper be around the secondary stage for ablation-compression?

Snifff, Dnnnooooooooo.....

>>15365066
my fathers balls

>>15365584
>gotta split atoms to push them together
are we really an advanced species?

HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH

BAHHAHAHAHUHUAHABUHAHAHAHAHAHAHHHHH

>>15365555
not that easy in purgery

>>15365594
like 60% of Americans believe in goblins or gnomes or something
so no

https://twitter.com/SciGuySpace/status/1647975526106124289

so hitlers birthday it is then

>>15365599
imagine what the billions of third worlders think

>>15365600

we looking good for 4/20?

Do any spaceflight companies use AI? China claims to be already using it, but it makes sense for them since they're poor and understaffed

>>15365615
I don't think weather prediction is reliable that many days away

>>15365615
Blaze it

>>15365615
https://weather.com/weather/tenday/l/Boca+Chica+TX+USTX1783:1:US

https://twitter.com/GoingBallistic5/status/1648063861122125839

>>15365648

>>15365644
gateway in 20 years

>>15365644
hls but shit :O

>>15365657
LOX and methane trucker bros, we are SO back.

I feel so blue balled right now space brothers

>>15365661
damn, I should draw starship porn

>all these deleted posts
Was the anime schizo spamming pedo pics again?

>>15365648
How much Methane does this thing vent into the atmosphere unflared just by sitting there?

>>15365259
Catholics have never done that. Music is solemn and only slightly happy during Christmas.

found a trucker on twitter complaining that he made a delivery to starbase and the road was terrible/potholed lol

>https://en.wikipedia.org/wiki/List_of_SpaceX_Starship_flight_tests
>spacex already have 10 missions lined up for starship
do we think there will be a surge in demand if the test flight goes well?

spaceplanes? lmao
only for little kiddies who play ksp or like to grift people
>dude.. wings.. IN SPACE!

>>15365066
bruhzil

>>15365674
>he doesn't know about aerogravity assist waverider spaceplanes
>he doesn't realize aerobraking from interplanetary is the future
>his tiny soul is locked in an expendable capsule modeled after an ICBM reentry vehicle

>>15365672
They want to launch their own Starlink-2 I guess.

>>15365667
None. They don't have a flare stack and they sure as hell aren't allowed to let it out.
Either a recondenser or just a pump and a high pressure tank for the excess.

>>15365672
every podunk smallsat company says "oooooohhhhh we have 8 trillion dollars in confirmed customer flights signed up and deals sealed". I'd imagine even with spacex those sorts of claims aren't as set in stone as they want you to believe.

>>15365082
Scott Manley, Eager Space and SpaceToday. I'm subscribed on a few channels about astronomy.

>>15365683
only one of the missions is for a podunk

>>15365099
those aren't me

>>15365677
as usual, the spaceplane fag consumes sci-fi and CAPESHIT
tell me oh violator of the rocket equation, where are the waveriders? where are my SSTO's? why no venturestar? Oh yeah thats right, all that shit? Inefficient, non-existent, no budget, no research,no material science, silch, nada

Starship? SLS? every goddamn rocket that has flown TO ORBIT? even the fucking space shuttle ASSISTED by glorified ICBM's? yeah faggot, keep telling yourself that spaceplanes will be real, the eternal tranny of spaceflight, airplanes will never be spacecraft

>>15365544
Don't assume 1000 Isp, it says it gets 700-something at sea level, which would be thru an optimized nozzle of course.
Also, I don't give a shit how high your engine Isp is, you're still gonna want a reusable booster stage.
CASE 1, SSTO. Engine has a TWR of 30. Vehicle has a propellant mass fraction of 70% (great for pure LH2 when including engine & structure mass and payload). Vehicle on the pad has a TWR of 1.2. Assuming an average Isp during launch of 830s, delta V is ~9.8 km/s. It gets to orbit, jury's out on payload mass and whether this thing can be reused.
CASE 2, TSTO. Same engine and mass fraction specs. Average Isp is now 1000s because the thing only operates in vacuum during launch. Stage delta V is ~11.8 km/s. You can bring your propellant mass fraction down from 70% to 63.2% and still get ~9.8 km/s out of that stage, which means either added structures or added payload. Of course, if you're staging off of a booster, you only need around 6.5 km/s more to achieve orbit, so your actual propellant mass fraction can be as low as 48.5%.

Doing TSTO with this technology lets you almost double your non-propellant mass fraction and still achieve orbit. If you keep things light, it lets you go straight from the pad to a Lunar intercept and capture. Meanwhile the SSTO is going to do nothing transformative to launch costs or capabilities, and also it's activating everything around it with neutron flux as it's running.

>>15365692
how's Florida starbase looking nowadays?

>>15365555
Dry nitrogen should dessicate the system of water just as good as anything. Maybe they need to blow really warm nitrogen through instead of (presumably) cooler than room temperature gas.

>>15365677
>he doesn't know about aerogravity assist waverider spaceplanes
O R B I T A L D R I F T

>>15365696
>where are the waveriders?
Waiting for Starship.
>where are my SSTOs?
Classified.
>why no venturestar?
Its lack of solid rocket boosters meant it was no longer subsidizing the ICBM program.

>>15365705

>>15365710
Too bad it requires magic nonexistant materials/cooling systems capable of allowing sharp leading edges to survive those temperatures

>>15365717
this shits going to be done before the year is over, right?

>>15365666
No, I think it was the furries trying to force their fetish, again.

>>15365714
And also venture star was an impossible design
VS more like BS

>>15365682
reminder that governments refused to set the nordstream leaks on fire

>>15365422
quite the aesthetic schizophrenia

ah no it's over guys, I saw these three pixelated webms someone posted on a different thread showing purportedly faked ISS interior shots and now I'm part of team flat earth. My worldview is shattered and my day is ruined. Wow it's amazing, those webms sure made me throw out my entire prior brain content in a snap.

>>15365726
That's why they're all shoe shaped.

>>15365263
we should colonize only the moons with girl names

>>15365743
its over

Holy shit if the untrimmed numbers are the real ones then all we have to do is get everyone to be BOOK KINGS and it's fucking OVER.

>>15365311
>>15365323
why does it look like a galaxy?

why didn't space x wet dress rehearse last week in order to find problems like the frozen valve?

>>15365759
uhhh just a coincidence that the valve problem showed up
trust the plan

>>15365396
I guess it's possible. I'm biased since I come from the manufacturing side of things, but personally I think that if you're at the point that you're building real demonstrator missions (even just cubesats), you should probably be hiring guys who actually know how to build stuff. Engineers are obviously very talented people but letting them build all their own hardware deep into the development cycle is how you get an overcomplicated unreliable product. You really need some guys in the room to slow everyone down and say "hey, this assembly is way too complicated and difficult to assemble, what if we did it this way instead".

posting one of my ancient webms for the oldfriends itt

>>15365762
Mate you know wikimedia has all these photos saved in much higher resolution right

>>15365759
this was the wet dress. The plan was always 4/20 because elon is a retarded child.

concept super heavy in the chopstick catcher

>>15365759
because trucking in all the consumables and reconditioning the propellant is a pain in the ass

>>15365766
mogged

found the krystalposter
https://archive.4plebs.org/pol/thread/423851976/#q423852879

>>15365759
they had already done a wet dress with this stack.

>posted that it will scrub
>decided to sleep through it
>woke up, watched the video, skimmed through the shitposting
I won, bros [math]\unicode{x1F920}[/math]

https://twitter.com/MorganLBrennan/status/1648072312577466369

>>15365778
>gangbusters

https://www.spacesymposium.org/about-us/

https://www.spacesymposium.org/fees-tickets-and-policies/

>>15365783
damn, isn't is already going on? I saw a couple of twitter posts about it

>>15365784
Lmao

>>15365784
>$750 for a zoom call

>>15365784
the grifting.. oh god the grifting runs so deep

>>15365789
17-20 so yes
there was a track about space law and then random assorted shit (new space leaders)
seems like extremely boring bullshit lmao

https://www.spacesymposium.org/agenda/
cant link the day or time of day directly

>>15365798
Lockmart had their new mars base camp which would have been exciting if SSSH wasn't a thing. If nothing else it's nostalgia.

bruno will talk in one of these

>>15365805
Damn Northrop’s got some CUTIES!

I guess if there is anything interesting from this multi-day event then those are going to be in some space news articles later

>>15365812
Pam Melroy was a hottie

>>15365244
It never occurred to me that obviously the Church would want to set up a diocese there ASAP.

bros, I can't bring myself to dislike Tory

>>15365818
Just proportionally there's a fairly high chance initial settlers would have Christians among them, I've actually wondered about how services would be held in the early days. Reminds me of a scene in 'Accelerando' where the Muslim astronaut prays in Mecca's direction while in Jupiter's orbit

>>15365819
He’s a hell of a lot better than Michael Gass. I don’t hate him, he just has the unfortunate job of needing to justify Atlas and Delta (Vulcan is basically the same thing) in a world where Falcon and Starship exist.

Its MATHEMATICALLY over for Plutocucks and Ceres-cels
>Astronomer Jean-Luc Margot proposed a mathematical criterion that determines whether an object can clear its orbit during the lifetime of its host star, based on the mass of the planet, its semimajor axis, and the mass of its host star.[65] The formula produces a value called π that is greater than 1 for planets.[a] The eight known planets and all known exoplanets have π values above 100, while Ceres, Pluto, and Eris have π values of 0.1, or less. Objects with π values of 1 or more are expected to be approximately spherical, so that objects that fulfill the orbital-zone clearance requirement around Sun-like stars will also fulfill the roundness requirement

>>15365798
did anybody see spacex employees? kind of weird

It's somewhat amusing to me that islam is uniquely shitty for space. Facing towards mecca has to be chucked out the window a lot of the time, pilgrimages aren't likely, and the times they have to pray have to be relaxed/reinterpreted for space as well.

why is ther a launch thread for a wet dress rehearsel

>>15365840
also you have to believe the moon was split in half and that the Sun sets in a pool of mud.

>>15365838
all too busy working

Will Elon be staying in Starbase until the next launch or will he fly somewhere else?

"I have ordered the closure of Boca Chica Beach and Hwy 4 for the purpose of protecting Public Health and Safety during SpaceX space flight activities on April 20, 2023, in the time period
between 12:00 a.m. C.S.T. to 2:00 p.m. C.S.T., and in the alternative on April 21, 2023, from 12:00 a.m. C.S.T. to 2:00 p.m. C.S.T. of the same day. Should SpaceX not complete its planned space flight activities on April 20, 2023, then Space may use the alternate date to complete its
test launch activities." Treviño stated.

HAPPENING

https://spacenews.com/space-symposium-23/

>>15365864
>April 20

MEME

FUCKING MEME AHHAHAHA 420 SO FUNNY DUDE WEE DBROOO

I HOPE IT SCRUBS HAHAHA

>>15365869
holy tranny seethe

>>15365864
Who's Trevino and will my lazy American ass now have to walk miles to see the launch?

>>15365870
>>15365869
>69
HAHAHAHA

4/20 69 XDD

>>15365871
judge

https://www.cameroncountytx.gov/order-to-temporarily-closing-boca-chica-beach-and-state-hwy-4-april-20-2023-with-alternative-date-of-april-21-2023/

How the hell does stuff like today actually happen? like, cant they just do a full wet dress rehersal (what today turned out to be) a few days before the planned launch date to make sure shit's working correctly?

>>15365866
Kek everyone I know that's going was (is) down in Boca Chica. No one's gonna attend now.

>>15365877
They did one already.
There's literally a hundred thousand things with a certain failure probability.

>>15365877
The first few launches will have a very high chance of scrub, just like with Falcon 9. It's the most natural thing in rocketry.

>>15365864
>>15365869
>4/20
NOOOO HE CAN'T KEEP GETTING AWAY WITH IT

>>15365884
but then it would never launch ?

>>15365754
Coriolis forces in upper atmosphere + fluid dynamics of the exhaust plume.

>>15365890
>a certain failure probability

>>15365846
kek, I remember a pasta some anon posted here about neil armstrong hearing the azan on the moon and seeing that it had a huge crack in it/

>be me
>about to turn 30
>used to be prop dev tech at Spacex (i'm the same anon who told the story about the spanish guy earlier in thread)
>quit my job a little over 2 years ago mid-pandemic to go back to school
>started from the bottom, one class left to finish my AA and transfer to university
>burnt out, tired, and not super excited to do this for 2-3 more years
>tech is collapsing, engineering jobs are drying up, especially in aerosapce
>labor shortage everywhere
>the pay scale for engineers at most places is literally the same as for engineering technicians (within 10%)
>pretty much every job I look at offers full relocation to anywhere in the country

What would you do, anons? Should I stick it out and finish my degree? Or should I cut and run back to an ET position before my skills and experience are too stale to be considered useful? I always wanted to get a degree and be an engineer but I don't really know if it's worth it anymore...

Website is updated. 4/20

launch window 8:28 am - 9:30 am cst

>>15365099
heartykek

>>15365840
Meanwhile in the West...
>Jews: "Our holy calendar is already based on orbital mechanics and we've had thousands of years of practice being exiled from home. We'd be happy to negotiate a reasonable consulting fee."
>Catholics: "Here is a thousand pages of new doctrine and a patch set for Bible translations to make the Faith and the Church multiplanetary."
>Protestants: "We figured out how to conquer a New World centuries ago."
>Mormons: "No, this isn't a colony ark, stop asking. It's a weather balloon."
>Pagans: "AVE MARS"

>>15365784
>paying for tickets
you get your company to pay for your ticket, morons

>>15365928
Shut up faggot come back when you discover the Earth is round

[math][/math]

[math]\unicode{x1F5FF}[/math]

https://twitter.com/SpaceX/status/1648092752893313024
>Teams are working towards Thursday, April 20 for the first flight test of a fully integrated Starship and Super Heavy rocket

>>15365826
>Pluto fails to fulfill criterion specifically engineered to exclude Pluto - report