LOL, so I am watching a show about the moon landings and just heard a NASA scientist say the dumbest thing I have ever heard in my entire life.

I don't think rockets are a closed system. I'm stating that doesn't matter. I thought I made this clear.

Obviously, you're stupid because I don't know what you're talking about.

So, free expansion would not take place if you used that same example but opened the walls and it was still a vacuum? Are you lying? What do the walls have to do with anything?

Prove it.

This is a rocket, starting in space, working in space, and accelerating in space.
[link to russianspaceweb.com]
[link to russianspaceweb.com]
Prove it's fake asshole.

Yeah bullshit. I know who you are, do you think I'm stupid? You're my personal little stalker who loves to run around claiming rockets are a closed system. It's a very specific and very wrong conspiracy claim.

No, free expansion does not apply to it. A rocket is not attempting to move space itself, that is what you are claiming by suggesting that "space is the other side of the chamber." It's absurd bullshit. The rocket nozzle is open, it's an open system, it's not a closed system. No matter how many times you claim that space is "the other side of the chamber" that will not make it true. There is no other side of the chamber, there's just space, it's not a sealed fucking box with a divider in the middle. If you were transferring propellant between tanks THAT would be free expansion, but that's not what this is.

Then it's not a closed system and it ceases to be an example of free expansion. You just opened the system, and you just admitted you HAVE to open the system to model a rocket in space. Congrats, you just proved my point.
:rocketscience:

Prove its real

I don't think rockets are a closed system. I'm stating that doesn't matter. I thought I made this clear.

Obviously, you're stupid because I don't know what you're talking about.

So, free expansion would not take place if you used that same example but opened the walls and it was still a vacuum? Are you lying? What do the walls have to do with anything?

It's from amateur astronomers, not the government, it matches known stars.
[link to nova.astrometry.net]
Prove it's fake.

It does matter. If it's an open system, which you admit, then free expansion does not apply.

Yes, you do. We both know it. If you want to lie and claim you don't, that's your choice.

Because the walls make it a closed system, a single system with two closed chambers. If it's an open system, then work is done. Joule free expansion naturally assumes an adiabatic process for there to be no work done, a closed, isolated system ( [link to www.fizica.unibuc.ro] ). A rocket is not an example of such a system, unless you're transferring propellant between two internal tanks.

It's the difference between transferring propellant between two closed tanks, one empty and one full (no thrust is accomplished by this) and opening the valves to burn the fuel and eject it through the rocket nozzle (thrust is accomplished by this). Are you seriously this stupid you don't understand the difference, or are you just trolling and pretending to be an idiot?

No response to this? Noted. Bitch has no comeback to amateur independent proof that rockets really do work in space.

Think whoever you want me to be. I don't care. Just assume I'm your stalker if it makes you feel better so we can move on..

Now, your example is closed, because in his experiment, it had to be to create the near vacuum to conduct his work.

In space, since the void is a near vacuum, it would be the EXACT same as the other side of that box with the exception of no walls.

So that gif couldn't have been faked? Lol, you are a dense mother fuck behind all that geek speak

It isn't faked. It matches known stars and the known positions of the satellites involved. It's from amateur astronomers, not the government. It's up to you to PROVE it's faked. You don't get to demand someone post footage of a rocket working in space and then ignore said footage of a rocket working in space without any proof that it's fake.

So film the stars, add in cgi rocket effects. Bam! There's how you fake it. You're stupid AF

It does matter. If it's an open system, which you admit, then free expansion does not apply.

Yes, you do. We both know it. If you want to lie and claim you don't, that's your choice.

Because the walls make it a closed system, a single system with two closed chambers. If it's an open system, then work is done. Joule free expansion naturally assumes an adiabatic process for there to be no work done, a closed, isolated system ( [link to www.fizica.unibuc.ro] ). A rocket is not an example of such a system, unless you're transferring propellant between two internal tanks.

It's the difference between transferring propellant between two closed tanks, one empty and one full (no thrust is accomplished by this) and opening the valves to burn the fuel and eject it through the rocket nozzle (thrust is accomplished by this). Are you seriously this stupid you don't understand the difference, or are you just trolling and pretending to be an idiot?

A rocket transferring propellant is effectively closed, a rocket expelling propellant through the nozzle is not. If you're idiotically referring to my link I posted that as proof that free expansion is something that occurs in a closed system, which you just further confirmed.
"Imagine a gas confined in a partition (of volume V1) of an adiabatically insulated container of
total volume V2"

Then A) it's not a closed system so free expansion is out the window since B) we're trying to move the rocket, not the universe itself. Idiot.

no such thing as a closed system.

True, which is why free expansion is an academic hypothetical. We can approximate it, but there's no such thing as a perfect insulator or perfectly ideal gas. What's your point? Just because there's no such thing as the perfect insulator or the perfectly ideal gas doesn't mean we can't approximate it or study such things academically. Your example still only applies to a closed system. Bitching that you can't create such a system perfectly doesn't change it.

Wrong. You tried to claim that the vacuum itself was part of the system being considered, just "without the walls." You are therefore modelling it as the entire universe being the system and the rocket being unable to move the universe. Of course it isn't, but the universe isn't what we're interested in here. The rocket is. And the rocket is an open system so free expansion does not apply since it is distinctly NOT an adiabatic process.
:rocketscience:

You're just intentionally trying to confuse. Let me make it simple for the casual reader who aren't trolls or idiots:

1) the small box is the chamber opening
2) the big box is a vacuum.

My point is you are passing something that is not true as fact.

If the "big box vacuum" is space then it's not a closed system and you are trying to consider the work done to the universe itself. Which is ridiculous. There is only one box in the rocket example (except for internal transfers of fuel), and that is the rocket itself. It's simply open to space and expelling mass, so work is done. It's not an adiabatic free expansion, that REQUIRES a closed system by definition.

Hang on to that little thread. It's really all you have. And I've explained numerous times why this has no bearing

Anyone who has a modicum of logic knows you're being deceitful. Per usual

Doc I'm impressed with your patience!!!

A slightly off topic question, why would there have been Soviet Cosmonauts at the space center in Clear Lake City/Nassau Bay in 1973?

:omgdog:
Don't know off the top of my head. Do you have any pictures?