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originally posted by: Triggernometry
a reply to: MasterAtArms
And yes, to guess where you are going with this, it is also air particles that are locally forcing anything else in atmosphere to move. but that does not mean there is a jet of air under a hot air balloon moving it upwards. Again, that is a result of the motion of air particles around the hot air balloon trying to equalise the local pressure around it, incidentally creating lift for that hot air balloon.
Creating lift? Lift is based on airflow.....a semantics mistake?
So wind is due to a pressure gradient in air that makes dense air move from high pressure areas to low pressure areas, of less dense air............
And when it takes objects along with this flow it is because air particles are pushing the object while moving into that direction........
Not a semantics mistake. Airflow IS a pressure gradient, otherwise there would be no flow.
but that does not mean there is a jet of air under a hot air balloon moving it upwards.
So which is it?
Is an air flow pushing it up, or is it not?
originally posted by: Triggernometry
a reply to: MasterAtArms
You just said that "lift", is pushing the balloon up. You say that lift is airflow.
but that does not mean there is a jet of air under a hot air balloon moving it upwards.
Again, that is a result of the motion of air particles around the hot air balloon trying to equalise the local pressure around it, incidentally creating lift for that hot air balloon.
What paradox?
originally posted by: Triggernometry
Why can't I push my finger through a table? What is causing the upward, almost buoyant like force that keeps my finger from sinking into the table?
A pressure gradient?
Or the fact that the particles that make up the table repel the particles that make up my finger, because the table has a higher density?
This is not even speculation, this is a proven fact. Can anyone tell me the name of this repelling force.
That isn't a pressure gradient.
That is the force of your fingers not having enough oomph to break the bonds of the mass of atoms holding the table together.
originally posted by: Triggernometry
a reply to: MasterAtArms
That isn't a pressure gradient.
Exactly.
That is the force of your fingers not having enough oomph to break the bonds of the mass of atoms holding the table together.
The force of not having enough oomph?
The table repels the atoms in your finger because it has a higher density. Can you name the force that is doing the repelling?
So, with your magical density repelling force, and your already stated absolute down-ness, what is stopping all the really light stuff (nitrogen, dust, sand, rain) from floating upwards and staying there?
Look it up and then give me the name of this force.