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Astronauts told to return to ISS after sheltering over air leak repairs

bbc.com

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Re: Astronauts told to return to ISS after sheltering over air leak repairs

#181

Post by avmich »

pyuser583 wrote: post #176
sam1714 wrote: post #164

Earlier quoted context omitted.

Candles are useful when oxygen has been consumed because of respiration or a fire. They're not useful in a leak. Conservation of mass: if a cubic meter of air escapes, that's 1.25 kg, and you need at least that much in candles. (You actually need 2 kg because the candle isn't solid oxygen) There's ultimately 1.2 t of atmosphere on the ISS. This will also result in a pure oxygen atmosphere, which is dangerous. You nee…

I thought it had a pure oxygen atmosphere to prevent the bends? Why is it dangerous?

Apollo I disaster suggests pure oxygen atmospheres are to be avoided.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#182

Post by inglor_cz »

firefax wrote: post #178
l23k4 wrote: post #173

Earlier quoted context omitted.

Why did you feel the need to post this comment?

>Why did you feel the need to post this comment? Maybe parent feels like rocket science is a field that should have few launch failures? I can't give you a quantitative answer since I'm usually focused on new research rather than what company/nation did said research... but their stuff does seem to blow up on the launchpad more often than NASA's :-)

NASA does not produce any launch vehicles. It produces payloads and buys launch services from others.

Unless you count test artifacts, an actual catastrophic failure of a rocket on a launchpad (or even in flight) has been rare in the last 10 years.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#183

Post by guyzero »

dotancohen wrote: post #160
honeycrispy wrote: post #152

Earlier quoted context omitted.

You're being sarcastic, but I would like a technical explanation of why this would not work.

Delta P

Delta P is one atmosphere or less, like 15 PSI. Lots of stuff can handle 15 PSI.

Now, will it immediately off-gas and embrittle on exposure to vacuum? Different question.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#184

Post by mynameisvlad »

munk-a wrote: post #148
mynameisvlad wrote: post #125

Earlier quoted context omitted.

The point of the rule is to not editorialize, not to keep an always-updating title.

Given that the title was highly accurate at time of submission perhaps a moderator will update the title further but the submission seems to be inline with all the guidelines. This is actually also a case where I think it wouldn't be unappreciated to deviate a bit from the article title to something like Live Updates: Astronauts on ISS told...

100% and it has regularly happened in the past as live updates change the current state. Things like service status/degradation is a big one that comes to mind which is almost the same.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#186

Post by inglor_cz »

sigmoid10 wrote: post #46
threwrfaway wrote: post #31

Earlier quoted context omitted.

The hubris of forgetfulness; to think that until Elon showed up the West couldn't even put a person in space anymore. The Soyuz, the MIR, the human space records, the Venera program, closed cycle rockets, all have no equivalent in the West. Even their version of the shuttle was superior (it flew 100% autonomously). I don't like Musk, but he single handedly saved the Western space programs.

This sense of national pride based on long past achievements will always be bewildering to me. Do you really think a country that is actively engaged in a full scale open land war and whose economy is in shambles is able to maintain (much less build) a venerable space program? Elon might have saved the American tax payer from the senate launch system jobs program, but the majority of the global space industry is and…

"Do you really think a country that is actively engaged in a full scale open land war and whose economy is in shambles is able to maintain (much less build) a venerable space program?"

Don't blame Russian space failures on the war.

Roskosmos was robbed blind by the likes of Dmitry Rogozin long before 2022. The Angara heavy launcher project has been started in the 1990s and still reminds me of Duke Nukem Forever. The Vostochnyi cosmodrome has been a black hole in red numbers for some 15 years etc. Things were "meh" even during the times when oil was 140 USD per barrel and Russia had no sanctions going against it.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#187

Post by throwway120385 »

ActorNightly wrote: post #162
MrPouig wrote: post #34

Earlier quoted context omitted.

If things go wrong, they're already in the vehicle supposed to bring them back. It might be upsetting to be 3 locked doors away from your best way to come back home

[flagged]

I really detest Musk but Dragon has had a really good track record.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#188

Post by rvnx »

GolfPopper wrote: post #170
ActorNightly wrote: post #162

Earlier quoted context omitted.

[flagged]

Is there any rocket-builder without a history of blowing things up?

Obviously not. Blowing things up is the reason for rocketry to exist and its historical basis.

A fun fact about SpaceX:

Remember our esteemed national American hero, and spiritual father of SpaceX, Wernher von Braun.

Wernher wrote a book about Mars referring to "The Elon", an imaginary Mars governing body.

The father of Elon Musk claimed that Elon's name came from there.

Well at least, that's what he claims. Reality doesn't matter if you have billions and power. History can be rewritten.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#189

Post by [deleted] »

rvnx wrote: post #188
GolfPopper wrote: post #170

Earlier quoted context omitted.

Is there any rocket-builder without a history of blowing things up?

Obviously not. Blowing things up is the reason for rocketry to exist and its historical basis. A fun fact about SpaceX: Remember our esteemed national American hero, and spiritual father of SpaceX, Wernher von Braun. Wernher wrote a book about Mars referring to "The Elon", an imaginary Mars governing body. The father of Elon Musk claimed that Elon's name came from there. Well at least, that's what he claims. Reality…

[deleted]

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#190

Post by djmips »

ActorNightly wrote: post #162
MrPouig wrote: post #34

Earlier quoted context omitted.

If things go wrong, they're already in the vehicle supposed to bring them back. It might be upsetting to be 3 locked doors away from your best way to come back home

[flagged]

... and returning is mostly by gravity.
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