Sceptimatic, why do you think the tank can't hold more than 30 minutes worth of oxygen?
The size of it.
Not enough.
Do the math. Show it should only support people for 30 minutes.
Because so far all you have is your pathetic claim to go against reality.
If they said it would only hold 30 minutes of oxygen you would likely object and claim it only held 5 minutes, because you make up whatever BS you can to pretend it doesn't work, to pretend there is a problem, because you can't actually show any problem.
Now, can you clearly explain why it should only work for 30 minutes, or can you just continue to ridicule?
Pretty easy to defend when you look from a realistic point of view, like on Earth.
It is pretty easy to defend against your nonsense.
Again, you never make any actual arguments to support your BS.
All you do is spout a bunch of baseless claims. It is trivial to defend against those baseless claims, by merely pointing they are baseless.
Conversely you basically never defend your BS; because you can't.
If it was actually easy to defend you would have started to defend it already.
You'll only get so much liquid oxy litreage in those small tanks, no matter how much you try to dress it up.
So prove you only get 30 minutes worth.
Otherwise, how do we know this little amount wont be 30 days worth?
Again, if you want to assert such utter BS you need more than just your baseless allegation.
Prove it would only last 30 minutes, otherwise you are just blatantly lying to everyone to try to dismiss reality.
That involves actual math.
That involves showing what is the maximum amount of oxygen that could be stored in the tank, and then by using that and how much people need per unit time, how long it could last for.
And when doing that you need to account for the compression into the tank and decompression when it leaves the tank.
But we both know you have no interest in actually doing that, because if you did, you would show quite clearly that you were wrong, and that it would last more than 30 minutes.
So instead you just continually the same pathetic claims, with no justification or defense at all.
So perhaps time for some simple questions for you:
How much oxygen could that tank hold? Not as a time based unit, but either as pressure and volume, or mass (and show all working).
How much oxygen does a human need every hour?
If you can't answer those trivial question, you have no basis for your outright lie that the tank would only last 30 minutes.