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Just trying to help you sort this out buddy.
originally posted by: BakedCrusader
a reply to: D8Tee
Your point?
why do some things, like a helium or hot air balloon, go up, if gravity is pulling down on all matter?
Can you show proof of this barrier?
And since I showed that gravity cannot contain the atmosphere, there has to be a barrier if space is a vacuum.
originally posted by: booyakasha
a reply to: Astyanax
tell me where the initial single point for the big bang theory originates...
originally posted by: BakedCrusader
a reply to: MasterAtArms
Hold a ping pong ball underwater and let it go. Is the water underneath the ball moving upwards? its exactly the same principle. The only movement of the air is to fill in the gap where the hot air balloon *was*. Another way to think of this - the pressure gradient isn't the air imparting a motive force on the object itself in a direct way. It is trying to crush it because it is lower pressure, so in the act of crushing the gas has to go somewhere, hence the movement.
My point is that obviously the air or water itself is not going up. So what is phyically pushing against the balloon? With what force is it doing the "crushing" then?
You do realize that pressure is created because partcles are pushing against particles?
Imagine one of those long balloons clowns make animals from. Fill it with water (for ease of demonstration). Now, since you also agree that air density increases the closer you get to the surface, grab the bottom of the balloon and squeeze. The water expands upwards. Now, while holding the bottom of the balloon still, grab the next handful of balloon and squeeze just a little less (because you are simulating slightly lower pressure a bit higher up). The water still goes UP
The water is going up because you are pushing it up with your fingers, and the water itself pushes the rest of the water up.
So what represents your fingers in the case of a helium balloon that is being pushed up?
The helium balloon displaces an amount of air (just like the empty bottle displaces an amount of water). As long as the helium plus the balloon is lighter than the air it displaces, the balloon will float in the air. It turns out that helium is a lot lighter than air.
originally posted by: BakedCrusader
a reply to: BakedCrusader
Imagine one of those long balloons clowns make animals from. Fill it with water (for ease of demonstration). Now, since you also agree that air density increases the closer you get to the surface, grab the bottom of the balloon and squeeze. The water expands upwards. Now, while holding the bottom of the balloon still, grab the next handful of balloon and squeeze just a little less (because you are simulating slightly lower pressure a bit higher up). The water still goes UP
And again, the only reason the water moves up is because the particles that make up my hands and fingers are pushing against the particles of the balloon who are pushing against the particles of the water. The particles that make up my fingers actually move towards the water.
In the case of the helium balloon, air particles are pushing all around it but the particles at the bottom have enough pressure behind them to push up the balloon. They can only be pushing by moving up themselves.
Not that I am saying that this is what happens in reality when things go up, but if the pressure gradient causes matter to go up, then this is the only way it can be.
So it's either this or it is not caused by the pressure gradient.
But I see that you have found what you were hoping for -- someone whose own ideas about gravity are sound but who lacks the technical knowledge, or perhaps merely the argumentative experience, to refute your conclusions. Your triumph is of rather limited scope, I fear. While you congratulate yourself, others are laughing at the -- shall we say -- density of your statements.
Now, once again, what do you mean by force?
Let me ask you something else. In your domed flat earth model, wherin you have yourself stated there is an absolute up and down (which exist without gravity, because you deny gravity) - what is the actual force that is pulling you "down" then ? Even in this fantastical world of yours, there is still a force that is pulling "stuff" towards this absolute down-ness. Forces don't care if that stuff is people, rocks, or gas
again! you argue how pressure works, then confirm how pressure works in the same statement!
Vacuum doesn't suck.
The air isn't sucked in the air is under pressure so when the valve opens it escapes. Into the vacuum chamber.
originally posted by: Triggernometry
a reply to: wmd_2008
The air isn't sucked in the air is under pressure so when the valve opens it escapes. Into the vacuum chamber.
Wow, another one hiding behind semantics.
So why doesn't the pressurised atmosphere "escape" into the vacuum of space? I just showed you again that gravity is not strong enough to stop this.
It's not my fault the guy interfered
So you agree that my arguments trump his?