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Indian startup 3D prints rocket engine in 72 hours

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Re: Indian startup 3D prints rocket engine in 72 hours

#91
post #59

Earlier quoted context omitted.

I'm not sure how many people know about their 'sound detection system'. Carbon fiber is a fickle beast and is prone to such failures so that alone worried me, but it was incredible for me to learn that they expected some sort of early warning from cracking.

Do you have a link? Google just gives results about the US Navy detection of the implosion…

https://www.youtube.com/watch?v=6LcGrLnzYuU

As I remember he talks about the sound detection thing.

Re: Indian startup 3D prints rocket engine in 72 hours

#92
post #29

Earlier quoted context omitted.

Canada is much more immigration-friendly than the US. It also has a program to green-light and fast-track immigration for all H1B holders in the US, though for calendar year 2024 the cap of 10k visas has already been reached. But my understanding is that there's a pretty significant population of skilled workers that were planning on settling in the US permanently (or semi-permanently), and have instead relocated to…

1. Europe is a big region, Switzerland, Norway, Iceland, Sweden has far far far more higher living standards than Canada, their total disposable income is higher, even if canadians might get paid decent, cost of housing is crazy, taxes are crazy, you cant get any medical surgery done without years in waitlist, So europe is 10x better than canada (just being frank, Canada was an amazing country 10 years ago, not anymo…

> Europe is a big region

I'm aware, particularly given that I live there.

Post-tax, post-essentials income comparisons are absurdly complicated and always depend on the individual. For example, dual-income families in Germany can tick slightly ahead of similar families in the USA because of how much more expensive it is to raise children in the US and how many (cash and societal) benefits you get from the social support system in Germany. But even this is a can and not will; that will also depend on your specific tax situation, and a whole host of other things. And whether the discrepancies in income levels are balanced out by different standards of living is also something you can really only evaluate on a case-by-case basis, because it's different for every job. For example, the income differential in software engineering is way higher between NA and Europe than it is for, for example, healthcare workers. In my specific case, when I moved from the US to DE, my gross decreased by 2/3 and my post-tax, post-essentials decreased by 1/2 -- and by post-essentials, I'm including things like massively higher rents in the US.

> a lot of European countries welcome skilled migration like Germany

I'm an immigrant to Germany and I would absolutely *not* consider it welcoming to immigration, skilled or otherwise. And given the results of the past few elections here (and elsewhere in Europe), which have been dominated by extremely negative discussions of immigration (with the notable exception of most/all of the Scandinavian countries), I don't really think your comment is painting an accurate picture.

I've never lived in Canada and have no experience with immigration there, so I can't speak to Canadian immigration policy beyond what I've already said -- that the current government is very pro-immigration and has policies in place specifically meant to compete with the US on skilled workers. What I can say though, is that much of what you're saying is very contrary to both my lived experience as an immigrant to Europe, as well as much of my experience with several very close friends who've been through the H1B -> green card lottery in the USA. Also, from an economic perspective, I would neither describe US immigration policy as "smarter", nor "better" than Canada's. And I would absolutely *not* describe it as a "strong procedure".

Re: Indian startup 3D prints rocket engine in 72 hours

#95
post #71

>Constructing a rocket engine using conventional approaches can take months, followed by extensive qualification testing to ensure it meets the required specifications. Using a metal 3D printer from German company EOS, Agnikul produced its engine in roughly three days. Agnikul printed the engine out of inconel, a high-performance alloy of nickel and chromium that can withstand high temperatures and mechanical loads.…

What part is not true? https://www.youtube.com/watch?v=kz165f1g8-E I'm sure that there are lots of problems with this approach, but it is not as obvious as your comment makes it out to be.

The part which is not true is: "removing the need for postfabrication qualification"

Re: Indian startup 3D prints rocket engine in 72 hours

#96
post #32
post #21

Earlier quoted context omitted.

It takes them 40 years to make a contemporary fighter jet, not all of which is in house, and they cannot make an infantry rifle, tank, or any defense equipment that their DoD equivalent is happy with outside of "ring laser gyroscopes", which was developed as a part of their guided missile program, which was made with covert and overt Russian and possibly Iraqi help. They cannot make their own trainsets, cars, and con…

> No country without a basic civic sense can (in the immediate few years) have the R&D capabilities you speak of in a meaningful fashion. LOL. Pray tell… Are you going to elaborate on your theory of technology development, or are you just bloviating your biases?

Yes. You need to have national unity, pride, and not be entirely selfish in order to have more engagement and participation in higher education and therefore in R&D. You need to be in a position in which you can inspire your citizens that there is a better life for them by engaging in that R&D and morale improving projects, but that attitude also needs to be seen on the streets, not just on TV.

India has some parts of the population in which that exists, but that's far from a large part of the population. Most people are very self interested, and you cannot blame them. People think of themselves. Why do you think there is a brain drain? People are educated at the government's expense at premier institutions and leave because they don't feel any sense of allegiance or civil responsibility to develop their country.

My math teach told me that during the Cold War, in the United States, the math that they learned was harder than it was now. It was your duty to become a scientist or engineer or something positive to push your country forward. That should be how it is for India, but aside from a smaller segment of the population (who are pretty loud and say some interesting things) people are more self interested. And you can't blame them. If your cousin moved to the United States and seems to be "living the life" why wouldn't you leave?

So a whole generation of scientists and engineers who were top notch educated at IIT at the government's expense under socialist India in the 80s basically left in the 90s and 00s because of more money, even though there were possibilities in India for them at the time (HP and IBM India, CDAC, CDOT, DRDO, ISRO, HAL, etc)

Re: Indian startup 3D prints rocket engine in 72 hours

#97

>Constructing a rocket engine using conventional approaches can take months, followed by extensive qualification testing to ensure it meets the required specifications. Using a metal 3D printer from German company EOS, Agnikul produced its engine in roughly three days. Agnikul printed the engine out of inconel, a high-performance alloy of nickel and chromium that can withstand high temperatures and mechanical loads.…

relativity space does this as well, they have youtube videos on what they do

They don't do qualification of their hardware? Why would you put that on YouTube?

Re: Indian startup 3D prints rocket engine in 72 hours

#98

>Constructing a rocket engine using conventional approaches can take months, followed by extensive qualification testing to ensure it meets the required specifications. Using a metal 3D printer from German company EOS, Agnikul produced its engine in roughly three days. Agnikul printed the engine out of inconel, a high-performance alloy of nickel and chromium that can withstand high temperatures and mechanical loads.…

"When you don't have any real criticism, just make stuff up! Keep people down at all costs." P.S. Nick checks out.

How is gross negligence on QA not a "real criticism"?

Re: Indian startup 3D prints rocket engine in 72 hours

#100
post #32
post #21

Earlier quoted context omitted.

It takes them 40 years to make a contemporary fighter jet, not all of which is in house, and they cannot make an infantry rifle, tank, or any defense equipment that their DoD equivalent is happy with outside of "ring laser gyroscopes", which was developed as a part of their guided missile program, which was made with covert and overt Russian and possibly Iraqi help. They cannot make their own trainsets, cars, and con…

> No country without a basic civic sense can (in the immediate few years) have the R&D capabilities you speak of in a meaningful fashion. LOL. Pray tell… Are you going to elaborate on your theory of technology development, or are you just bloviating your biases?

And you know what? Even some of the Indian companies at the time were super good.

HCL was the Indian IBM. In fact, it's a one letter shift from IBM, and one of the earlier Indian tech companies. There were opportunities. People wanted money and things and didn't want to wait.

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