Is the earth flat?

[TitoFan]

Where in the natural world can we observe gas pressure being created without a container?

It's called science Tito, NASA is now even trying to give you an out. But the question still remains. What's the definition of gas pressure? Where in the physical and natural world can we observe and experiment with gas pressure being created without a container?

No it's not, Alpha. It's called parroting. I've given you the air pressure gradient explanation umpteen times and you continue to parrot the same question, as in hopes that if you ask it enough times without acknowledging the answers being given you, it will prove you right. Sort of like a grown-up version of holding your breath until you turn blue.