There is a force.
Glad you agree. That means no need for the atmosphere, as that force requires a reactionary force on the rocket.
Done.
Otherwise, i.e. if there is no force, there is nothing to cause the expansion and thus the gas would not expand.
This expansion from a tank is what's known as
No. It is what is known as a pressure differential.
You have high pressure in one environment and low or no pressure in another.
This pressure differential forces the molecules out.
The only force in the tank is molecule on molecules
aka pressure, and unless it is balanced in all directions it will generate a net force on the tank.
This can only be achieved by hitting atmosphere. It cannot be achieved inside the rocket alone.
No, there is absolutely no requirement for the atmosphere.
You have pressurised gas.
This will exert a force on the container.
If you were to open that valve to allow that pressure to expand and you had no resistance to it coming out, as in atmospheric resistance, then you would expand into nothing. It's impossible.
Just what magically makes this impossible?
If there is nothing in its way, just what is there to stop it?
The rocket is running away from it's thrust
No, its "thrust" i.e. the hot gasses escaping, are pushing the rocket away.
The atmosphere can't magically push it.
All your hand is, is a foundation to the end of the spring.
No, it is a barrier.
The force on the end of that spring is negligible to any recoil.
That depends entirely upon the spring. If you have a tiny spring then the recoil from it will be tiny.
Like I said, I have provided a nice simple experiment you can do to test this.
I'll respond to your diagram when you draw one explaining exactly what you believe is happening.
I have explained.
You ignoring it doesn't magically change it.
Explain it in atmosphere and your space.
The explanation is the same.
You have high pressure gas inside the rocket forcing it up.
I'll be happy to put a diagram up explaining my side quite clearly.
Then hurry up and put one up.
The barrier is always air.
Which should mean that it doesn't matter if you release the spring into the air or into a solid brick.
But it does matter.
waste it against the atmosphere if you don't add something as a decent resistance.
Again, you claim the atmosphere is magically the only thing providing the resistance.
The rocket explanation is absolute nonsense but a definite good dupe of those that don't think on it.
If it was nonsense you would easily be able to show it as such, as we have shown your magic air resistance as such.
But instead all you can do is ridicule it and dismiss it.
It is....from outside of the rocket.
So you accept it is the hot pressurised gas pushing the rocket up now? No need for your magic atmosphere?
If you want to change to solid fuel rockets like fireworks then we can start to see what happens inside the rocket where it does actually burn.
As they operate via fundamentally the same principles we are discussing both.
Both have fuel. Both burn the fuel. Both fuels result in hot, pressurised gas being produced. The pressurised gas pushes the rocket up from inside, without needing the atmosphere.
Do you want to go through this or are you dodgy about it?
You are the one refusing to go through it.