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FirstnameLastname
Jul 10, 2022
the falcon platform has a 99.something launch success rate & it's all of those except one,( i don't think starship has made an orbit attempt, i don't think they've even gotten it past the karmann line yet)

which would be expected, outside of the landing part the falcon platform are just bog standard multi-stage iquid cryogenic rockets the same as the soyuz and saturn series. falcon heavy/superheavy is just parallel boosters attached to the central fuselsge. It was designed early on in SpaceX's history before Tesla had blown up in value and musk was superrich so It has a practical design and realistic use case

the one other non spacex launch would be the Artemis test launch using the SLS, which is literally 'wasn't that big fuel tank they launched with the shuttle cool looking? what if we just launched that '

literally

same rockets, same thiol solid rocket boosters

for 23 billion dollars

it has launched once and there's as many spare RS-25 engines as there are planned launches before retiring the project (loving two lol)

we cant build more, ofc

quote:

Previously known as the Space Shuttle main engine (SSME), it was the reusable main engine developed by Rocketdyne for the now-retired Space Shuttle. Remaining RS-25D engines are planned for use on early Space Launch System rocket launches after which an expendable version, RS-25E will be developed for foll

same company that built the F-1 rockets on the Saturn V

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BearsBearsBears
Aug 4, 2022

thechosenone posted:

I mean I'm sure there's someone on Musk's payroll who would love to be part of a way less lovely space program.

The good thing about scientists, is that they don't need to be attached to some guy's name to do good: what they need is to be attached to an organization/economic system that isn't completely feckless and doesn't destroy 90-95% of their effort.

Edit: So like I dunno maybe NASA will get a bone one of these days.

SpaceX is already a well-run organization, you can leave most of it in place. Sure it would work better under a superior economic system (especially one with a better education system) but it's perfectly functional right now. It's one of the most impressive space organizations in the world and not merely the best private spaceflight organization.

BitcoinRockefeller posted:

Wow, so much data!

We learned that a flame diverter trench is absolutely necessary and that flying concrete bits are bad for rockets. Honestly this was already known. There is a serious problem where people are so blinded by hi-tech gizmos and rapid operations that they forget about solid proven technology like just digging a trench.

gradenko_2000 posted:

You ivory tower intellectuals must not lose touch with the world of industrial growth and hard currency. It is all very well and good to pursue these high-minded scientific theories, but research grants are expensive. You must justify your existence by providing not only knowledge but concrete and profitable applications as well.

Technological advance is an inherently iterative process. One does not simply take sand from the beach and produce a space probe. We use crude tools to fashion better tools, and then our better tools to fashion more precise tools, and so on. Each minor refinement is a step in the process, and all of the steps must be taken.

Cerebral Bore
Apr 21, 2010


Fun Shoe
There are two kinds of scientific progress: the methodical experimentation and categorization which gradually extend the boundaries of knowledge, and the revolutionary leap of genius which redefines and transcends those boundaries. Acknowledging our debt to the former, we yearn, nonetheless, for the latter.

gradenko_2000
Oct 5, 2010

HELL SERPENT
Lipstick Apathy

thechosenone posted:

I mean I'm sure there's someone on Musk's payroll who would love to be part of a way less lovely space program.

The good thing about scientists, is that they don't need to be attached to some guy's name to do good: what they need is to be attached to an organization/economic system that isn't completely feckless and doesn't destroy 90-95% of their effort.

Edit: So like I dunno maybe NASA will get a bone one of these days.

The Earth is the cradle of the mind, but one cannot stay in the cradle forever.

FuzzySlippers
Feb 6, 2009

Or you could just have the government pay the scientists so we don't need them tethered to any billionaire self-stroking or any profitability concerns.

I hear in a couple years and however many billion more dollars we might even get back to the kinds of moon missions we did in the early 70s. I honestly never expected them to get that far.

BearsBearsBears
Aug 4, 2022

FirstnameLastname posted:

the one other non spacex launch would be the Artemis test launch using the SLS, which is literally 'wasn't that big fuel tank they launched with the shuttle cool looking? what if we just launched that '

literally

same rockets, same thiol solid rocket boosters

for 23 billion dollars

it has launched once and there's as many spare RS-25 engines as there are planned launches before retiring the project (loving two lol)

we cant build more, ofc

The SLS is literally the same tech as the space shuttle. Same solid-fuel boosters, same fuel tank, same liquid-fuel rocket engine. The SLS was designed by congress to keep those same factories open and running. The difference being that the space shuttle landed with those RS-25 engines and reused them while the SLS will just drop them into the sea.

The space shuttle was always kind of a dumb idea. Every pound launched to orbit is very expensive and the space shuttle was very heavy, each pound of weight for the space shuttle was a pound of payload that couldn't be launched on that mission. Compare that to the Falcon 9, which reuses the first (bottom) stage instead. The first stage is both the heaviest (and very costly) stage and the part that goes the least "distance" and goes at the slowest speed (in rocket terms). The fact that the first stage is moving so "slow" also makes it the easiest to recover

The Soviet space shuttle Buran was still conceptually kind of a dumb idea, but it made a number of improvements. It was launched on an Energia rocket that could launch other missions as well, so the Buran didn't need the massive engines that the US shuttle had (and had to drag all the way into orbit). This also removed the need for massive amounts of cryogenic fuel to flow sideways through the shuttle body and into the engine. The ice formed on these fuel lines is what caused the Challenger disaster.



Edit: At one point there was another US concept for a shuttle replacement. It was called the Shuttle-C. It was uncrewed and those big engines at the bottom would drop off in a "boat tail" and be recovered. This allowed the engines to be reused and saved all the fuel it would take to get them all the way into orbit.

BearsBearsBears has issued a correction as of 05:12 on Dec 27, 2023

Gunshow Poophole
Sep 14, 2008

OMBUDSMAN
POSTERS LOCAL 42069




Clapping Larry

BearsBearsBears posted:

SpaceX is already a well-run organization

*

We learned that a flame diverter trench is absolutely necessary and that flying concrete bits are bad for rockets.

*

Honestly this was already known.

:ok:

hahaha

Slavvy
Dec 11, 2012

Still love the car though

yellowcar
Feb 14, 2010

the russians already effortlessly hacked starlink and used them against the ukrainians so really the US having launched more satellites is kinda pointless in that respect

stephenthinkpad
Jan 2, 2020
Emusk announced more vaporware than the MIC. Solar rooftop, boring tunnel, egg shaped train, robot, cybertruck, cyber semitruck, trip to mars, just a walking human vaporware factory.

BearsBearsBears
Aug 4, 2022

Nobody bats a 1.000, sometimes organizations we love make dumb unforced errors. Today (December 26th) of all days we need to understand that.

https://www.youtube.com/watch?v=CcE0vyqL_ro

Slavvy
Dec 11, 2012

Lol are you for real guy

DickParasite
Dec 2, 2004


Slippery Tilde

BearsBearsBears posted:

The ice formed on these fuel lines is what caused the Challenger disaster.


Sidebar but Feynman's Appendix to the Challenger Congressional Review has some of my favorite neoliberalism.txt

quote:

It appears that there are enormous differences of opinion as to the probability of a failure with loss of vehicle and of human life. The estimates range from roughly 1 in 100 to 1 in 100,000. The higher figures come from the working engineers, and the very low figures from management.

...

since the Shuttle is a manned vehicle "the probability of mission success is necessarily very close to 1.0."


NASA managers were saying that after the shuttle exploded. And regarding the famous O-ring:

quote:


In spite of these variations from case to case, officials behaved as if they understood it, giving apparently logical arguments to each other often depending on the "success" of previous flights. For example. in determining if flight 51-L was safe to fly in the face of ring erosion in flight 51-C, it was noted that the erosion depth was only one-third of the radius. It had been noted in an [F2] experiment cutting the ring that cutting it as deep as one radius was necessary before the ring failed. Instead of being very concerned that variations of poorly understood conditions might reasonably create a deeper erosion this time, it was asserted, there was "a safety factor of three." This is a strange use of the engineer's term ,"safety factor." If a bridge is built to withstand a certain load without the beams permanently deforming, cracking, or breaking, it may be designed for the materials used to actually stand up under three times the load. This "safety factor" is to allow for uncertain excesses of load, or unknown extra loads, or weaknesses in the material that might have unexpected flaws, etc. If now the expected load comes on to the new bridge and a crack appears in a beam, this is a failure of the design. There was no safety factor at all; even though the bridge did not actually collapse because the crack went only one-third of the way through the beam. The O-rings of the Solid Rocket Boosters were not designed to erode. Erosion was a clue that something was wrong. Erosion was not something from which safety can be inferred.


It must be orders of magnitude worse in the MIC where the money is infinitely greater and the failures less publicized.

Centrist Committee
Aug 6, 2019

DickParasite posted:

Sidebar but Feynman's Appendix to the Challenger Congressional Review has some of my favorite neoliberalism.txt

NASA managers were saying that after the shuttle exploded. And regarding the famous O-ring:

It must be orders of magnitude worse in the MIC where the money is infinitely greater and the failures less publicized.

there’s something here about neoliberal philosophy and determinism vs. materialism and probability but I can’t quite get there

mawarannahr
May 21, 2019

stephenthinkpad posted:

Emusk announced more vaporware than the MIC. Solar rooftop, boring tunnel, egg shaped train, robot, cybertruck, cyber semitruck, trip to mars, just a walking human vaporware factory.

wb

BearsBearsBears
Aug 4, 2022

DickParasite posted:

It appears that there are enormous differences of opinion as to the probability of a failure with loss of vehicle and of human life. The estimates range from roughly 1 in 100 to 1 in 100,000. The higher figures come from the working engineers, and the very low figures from management.

...

since the Shuttle is a manned vehicle "the probability of mission success is necessarily very close to 1.0."

The final catastrophic failure rate of the space shuttle was 2 in 135, pretty drat close to the engineers' rough estimates.

Fun Fact: Big Bird from Sesame Street was originally supposed to be on the final flight of the Challenger. He was scrubbed from the mission because he was too large for the seats and spacesuit. He was replaced with the teacher Christa McAuliffe, a civilian specialist who would conduct educational lessons for children from space and demonstrate how safe and routine spaceflight now was.

Overall, it's probably for the best that millions of children didn't wind up watching Big Bird explode on live tv.

BearsBearsBears has issued a correction as of 06:16 on Dec 27, 2023

Real hurthling!
Sep 11, 2001




i would simply put the rocket under my astronauts so they arent being pelted with debris so much but im not a 1980s nasa super genius

Raskolnikov38
Mar 3, 2007

We were somewhere around Manila when the drugs began to take hold
space flight was perfected with the capsule and moves away from capsules are universally terrible and hideously unsafe

gradenko_2000
Oct 5, 2010

HELL SERPENT
Lipstick Apathy
Sierra Entertainment's Outpost remake when

Ardennes
May 12, 2002

Raskolnikov38 posted:

space flight was perfected with the capsule and moves away from capsules are universally terrible and hideously unsafe

The space shuttle was all about trying to capture Russian satellites. The Buran was just there to tell them to knock it off.

zetamind2000
Nov 6, 2007

I'm an alien.


the titanic submarine disaster but with a nuke sub

Slavvy
Dec 11, 2012

Ardennes posted:

The space shuttle was all about trying to capture Russian satellites. The Buran was just there to tell them to knock it off.

The buran was the Soviets buying into the hype and thinking there might be something to this shuttle business only to immediately discover the error of their ways

dead gay comedy forums
Oct 21, 2011


BearsBearsBears posted:

Technological advance is an inherently iterative process. One does not simply take sand from the beach and produce a space probe. We use crude tools to fashion better tools, and then our better tools to fashion more precise tools, and so on. Each minor refinement is a step in the process, and all of the steps must be taken.

Hm. Beware, you who seek first and final principles, for you are trampling the garden of an angry God and He awaits you just beyond the last theorem.

zetamind2000
Nov 6, 2007

I'm an alien.

gradenko_2000 posted:

Sierra Entertainment's Outpost remake when

the sequel's been on gog for a while but the first game can be done in dosbox

https://www.outpost2.net/outpost1.html

zetamind2000
Nov 6, 2007

I'm an alien.

the outpost series was legit and the first game to my knowledge is the only game involving space that you can lose two or three clicks after the main menu

Orange Devil
Oct 1, 2010

Wullie's reign cannae smother the flames o' equality!

BearsBearsBears posted:

I'm hearing a lot of anti-Space-X talk in this thread. Space-X is amazing if you give any shits at all about spaceflight, the ability to land and reuse the first stage is a revolutionary technology. I have very few good things to say about Elon Musk but his money has done great things for space exploration when it was given to the right people. Please keep funding the scientists and engineers at Space-X even if we decide to kill Elon.

gently caress the space X.

sullat
Jan 9, 2012
You are orphans, earthmusk, your homeworld already buried so young among the aeons. Yet now you fill the skies where we watched a million sunsets with flame and contrails, paying no heed to the hard lessons the universe has tried to teach you. Are you a breath of life to invigorate a complacent world, you earthhumans, or an insidious cancer which must be excised?

Boat Stuck
Apr 20, 2021

I tried to sneak through the canal, man! Can't make it, can't make it, the ship's stuck! Outta my way son! BOAT STUCK! BOAT STUCK!
https://twitter.com/FT/status/1740257507690635696

Lol can't believe the US is willingly destroying its exorbitant privilege like this

genericnick
Dec 26, 2012

Gonna set up working groups to maybe do something

Best Friends
Nov 4, 2011

stealing $4b from Venezuela and giving it to some random pro US goober should have been the wake up call to everyone outside the West to get their money out asap. The emperor has gone mad, wandering nude around the palace issuing dictats, and unfortunately for everyone there’s still just enough legions around to make some of those dictats matter.

The Oldest Man
Jul 28, 2003

Boat Stuck posted:

https://twitter.com/FT/status/1740257507690635696

Lol can't believe the US is willingly destroying its exorbitant privilege like this

what about like this

https://twitter.com/revolutionaryem/status/1740380946640290148

"turn your ais off to stay safe" truly sage words from a hegemon for whom things are 100% under control and fine

Votskomit
Jun 26, 2013

Best Friends posted:

The emperor has gone mad, wandering nude around the palace issuing dick tats.

DancingShade
Jul 26, 2007

by Fluffdaddy

Boat Stuck posted:

https://twitter.com/FT/status/1740257507690635696

Lol can't believe the US is willingly destroying its exorbitant privilege like this

300b seems like a bargain price to massively undermine the financial bedrock of the crumbling empire.

Centrist Committee
Aug 6, 2019

DancingShade posted:

300b seems like a bargain price to massively undermine the financial bedrock of the crumbling empire.

it’s incredible. they can’t be this stupid

narrator:

Delta-Wye
Sep 29, 2005
is it really hard 'assets' anyways? I thought it was mostly fiat currency

Centrist Committee
Aug 6, 2019

Delta-Wye posted:

is it really hard 'assets' anyways? I thought it was mostly fiat currency

assets on the balance sheet, it’s corpo speak yeah

stephenthinkpad
Jan 2, 2020
So this is like the Afghan aid right, the MIC keeps 90% of the fund, the warlords get 10% of the aid.

galagazombie
Oct 31, 2011

A silly little mouse!

Centrist Committee posted:

it’s incredible. they can’t be this stupid

narrator:

I’m also stupid (or at least ignorant of the topic) so can someone explain this to me? They want to seize Russian assets, but like what assets? And what are the expected effects?

The Oldest Man
Jul 28, 2003

galagazombie posted:

I’m also stupid (or at least ignorant of the topic) so can someone explain this to me? They want to seize Russian assets, but like what assets? And what are the expected effects?

Western financialization since the end of the cold war has left the US, UK, Germany, etc. in a position where they own huge swathes of world economic activity but most of that is the paper plane spreadsheet activity of finance capital. That activity is contingent on being the world's banking, investment, and financial broker. Using the economic high-ground of finance capital to seize paper assets from Russia doesn't actually hurt their ability to wage war in the short term since all the physical industries of war continue to operate, but it does create new and powerful incentives for everybody to build their own financial apparatus outside the control of the West. It's ultimately just an extension of banking logic - the reason you put your money in a bank is because you have some reason to believe you'll be able to get it back later, with some interest. As soon as the bank starts playing by different rules and deciding who can get their money back out, people start looking for the exits. If you are an elite literally anywhere outside NATO, you're now looking at this action and going "well guess I shouldn't put my money or investments in that system since they're going to steal it from me if I make them mad."

AFAICT the reason they're doing this is because it plays well domestically in the US and they're having trouble getting the money-printer to work the way it used to so they're looking for some paper dollars to provide the fig leaf necessary to transfer more lockheed and general dynamics poo poo to blow up in Ukraine.

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Ardennes
May 12, 2002
Also, the Europeans not being onboard is going to make it meaningless because the Russians largely cashed out their reserves in Dollars and Pounds so the US would be pushing for undermining itself for a fraction of that amount.

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