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Artemis II is competency porn

lizplank.substack.com

91–96 of 96 posts

Re: Artemis II is competency porn

#91
post #89

Earlier quoted context omitted.

> I'm not impressed by your insults. It's not an insult. You're overestimating SpaceX capabilities and I'm correcting you. There's no shame in that. I do find strange that you're insisting on it though. > Bring in the math. Falcon Heavy never carried anything similar to Orion. It never performed a second-stage "second burn trick" [sic]. There has never been a shield test like you described. Those things were never ev…

All the evidence required is the mass of the object and the total kinetic energy the second stage can add to the object - rockets are like that: they don't care what they are pushing or in which direction - it's possible to get the required speed with a 20 ton payload. The idea was never proposed because of numerous reasons (one of them not thinking it would yield a better understanding of how the Orion heat shield w…

> rockets are like that: they don't care what they are pushing or in which direction

That is just incorrect. Fuel tank design and arrangement, for example, is full of internal mass dynamics.

> would be politically complicated for NASA

Let me repeat this again: Falcon Heavy cannot carry Orion. There is no complication here.

NASA and SpaceX collaborate heavily. NASA doesn't build rockets, they're administrators. If SpaceX could be used, they would have used it (as they did with Dragon and so many other projects).

Stop trying come up with makeshift excuses for the lack of technical background you failed to provide.

> Both Challenger and Columbia were lost because people forgot they were experimental vehicles operating under conditions we don't fully understand.

Irrelevant attempt at misdirection. This has nothing to do with whether Falcon Heavy can or cannot test Artemis shields.

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You're desperately trying to pivot the discussion from a technical one (in which you demonstrated lack of basic knowledge about several important topics) to a political one (which is murky and easier to navigate into a tarpit).

Re: Artemis II is competency porn

#92
post #89

Earlier quoted context omitted.

All the evidence required is the mass of the object and the total kinetic energy the second stage can add to the object - rockets are like that: they don't care what they are pushing or in which direction - it's possible to get the required speed with a 20 ton payload. The idea was never proposed because of numerous reasons (one of them not thinking it would yield a better understanding of how the Orion heat shield w…

> rockets are like that: they don't care what they are pushing or in which direction That is just incorrect. Fuel tank design and arrangement, for example, is full of internal mass dynamics. > would be politically complicated for NASA Let me repeat this again: Falcon Heavy cannot carry Orion . There is no complication here. NASA and SpaceX collaborate heavily. NASA doesn't build rockets, they're administrators. If Sp…

> Falcon Heavy cannot carry Orion.

Why? Explain your reasoning.

Re: Artemis II is competency porn

#93
post #92

Earlier quoted context omitted.

> rockets are like that: they don't care what they are pushing or in which direction That is just incorrect. Fuel tank design and arrangement, for example, is full of internal mass dynamics. > would be politically complicated for NASA Let me repeat this again: Falcon Heavy cannot carry Orion . There is no complication here. NASA and SpaceX collaborate heavily. NASA doesn't build rockets, they're administrators. If Sp…

> Falcon Heavy cannot carry Orion. Why? Explain your reasoning.

I already did.

https://news.ycombinator.com/item?id=47730179

Initially, I presented it as "please elaborate" questions. A courtesy, to give you the benefit of the doubt.

So far, you were not able to answer them with the same kind of courtesy that I initially offered.

Instead, you doubled-down on answering vaguely, hoping that I would slip at some point to a defensive position in which I would offer math and numbers, which are totally YOUR responsibility to provide, since YOU MADE THE CLAIM.

I don't need to prove that something that never happened is impossible. You need to prove that what never happened is possible (because you said it is). Capisce? It's basic science communication.

I don't need to do anything here. I'm right until you're able to prove otherwise.

Re: Artemis II is competency porn

#94
post #92

Earlier quoted context omitted.

> Falcon Heavy cannot carry Orion. Why? Explain your reasoning.

I already did. https://news.ycombinator.com/item?id=47730179 Initially, I presented it as "please elaborate" questions. A courtesy, to give you the benefit of the doubt. So far, you were not able to answer them with the same kind of courtesy that I initially offered. Instead, you doubled-down on answering vaguely, hoping that I would slip at some point to a defensive position in which I would offer math and numbers,…

It’s painfully obvious you never worked in any position remotely close to the aerospace industry.

Re: Artemis II is competency porn

#95
post #94

Earlier quoted context omitted.

I already did. https://news.ycombinator.com/item?id=47730179 Initially, I presented it as "please elaborate" questions. A courtesy, to give you the benefit of the doubt. So far, you were not able to answer them with the same kind of courtesy that I initially offered. Instead, you doubled-down on answering vaguely, hoping that I would slip at some point to a defensive position in which I would offer math and numbers,…

It’s painfully obvious you never worked in any position remotely close to the aerospace industry.

Never said I did.

At an enthusiast-level of knowledge (which is the level we're discussing here), I am way far ahead of you on this.

Re: Artemis II is competency porn

#96

I can't believe the comments here. "I could have done it better, it's not a big deal, oh, they had women and non white people on board, what even is the shareholder value of this mission, oh it was almost done 50 years ago..." These people went literally to the moon and back. Furthest anyone has ever been. That's an achievement. I know things suck right now. Even more reasons to appreciate what is possible with techn…

Musk and his ilk have mesmerized a lot of people.

It’s easier for them to believe in the fantasy superiority of a rocket which hasn’t achieved orbit than the real achievements of NASA and other space agencies.

It’s supercharged by a desire to politicize science to defend their sexist and white supremacist worldview. It pains them to see people they dismiss achieving great things. There are no able minorities. Just unfairness. A fair world to them is white men on top, everyone else below.

What’s funny is how different they are from the people they idolize. Just as SS officers would be disgusted by your average ICE recruit, you average NASA engineer from Apollo would have seen through Musk in an instant.

A rocket that requires tens of fueling trips to make a single moon run would be an anathema to them and they would call it out of the bad engineering it is.

There is so much anger that reality is stronger than prejudice and whatever they say and do women, brown and disabled people will be increasingly prominent, powerful and influential whatever they wish the case was.

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