Almost Free Electricity

You have a fundamental misunderstanding of why air pressure changes with altitude.

The fact someone let's you fly a plane, allegedly, is terrifying.
 
requiem said:
We are not building chimneys to 3000 feet...

You are confused about two very different principles.

Yes, the pressure does get less as you increase altitude, but it does not suck up the lower altitude air.
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That's why the hill. If you stand at the top of a building by an open lift shaft it acts as a chimney. You can feel a breeze as higher pressure air at the bottom seeks equilibrium with the lower pressure air at your level.
 
ScottulusMaximus said:
You have a fundamental misunderstanding of why air pressure changes with altitude.

The fact someone let's you fly a plane, allegedly, is terrifying.
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Explain it to me. Why does air pressure change with altitude?
 
Packer said:
That's why the hill. If you stand at the top of a building by an open lift shaft it acts as a chimney. You can feel a breeze as higher pressure air at the bottom seeks equilibrium with the lower pressure air at your level.
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So why isn't the higher pressure air at ground level constantly rushimg upward to the low pressure at altitude all over the place?
 
Sinbad said:
So why isn't the higher pressure air at ground level constantly rushimg upward to the low pressure at altitude all over the place?
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Because duuuuude, the magic chimney effect.

It only does it if enclosed in steel...

/s
 
Sinbad said:
Lol! Wikipedia?
Yes, Altitude causes pressure to decrease.

AT THE SAME RATE INSIDE THE CHIMNEY AS OUTSIDE THE CHIMNEY!

So, again, for any given Altitude, the pressure is the SAME inside and outside the chimney, barring other influences like temperature.
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That's what causes the breeze. High pressure air seeking equilibrium with low pressure air. The walls of the 'chimney' separate it from the general mass of air (where the effect is not felt).
 
Packer said:
That's why the hill. If you stand at the top of a building by an open lift shaft it acts as a chimney. You can feel a breeze as higher pressure air at the bottom seeks equilibrium with the lower pressure air at your level.
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Being a pilot of all kinds especially paragliding, why do you search for a thermal? Why are they not all around and what principles create them?
 
Packer said:
That's what causes the breeze. High pressure air seeking equilibrium with low pressure air. The walls of the 'chimney' separate it from the general mass of air (where the effect is not felt).
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Wait, the same pressure causes a breeze?

Lol

Please answer my question about why low altitude high pressure air isn't all rushing up to high altitude all the time?
 
Sinbad said:
So why isn't the higher pressure air at ground level constantly rushimg upward to the low pressure at altitude all over the place?
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It is. But without the chimney its not detectable. You've admitted that air pressure decreases with altitude. Are you changing your mind?
 
requiem said:
Because duuuuude, the magic chimney effect.

It only does it if enclosed in steel...

/s
Click to expand...
It doesn't matter what its enclosed in. As long as its separate from the general mass of air.
 
Quintrix said:
Being a pilot of all kinds especially paragliding, why do you search for a thermal? Why are they not all around and what principles create them?
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I didn't say hot air doesn't rise. Of course thermals work.
 
Packer said:
It is. But without the chimney its not detectable. You've admitted that air pressure decreases with altitude. Are you changing your mind?
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Not at all changing my mind. However, I am aware of a force called gravity which actually causes the pressure differential.

You think the air is constantly moving upwards undetectably? Seriously?

Where does all this infinite air supply to blow upwards come from?

**** me. Is the what 30 percenter education is producing nowadays?
 
Packer, imagine a chimney with an open top & bottom, 10 000 feet tall. (+/- 3000m). It is wide enough to fly a paraglider.

You launch at the top into the chimney.

Do you expect to go up or down?

Now, instead of launching into the chimney, imagine launching outside. Do you expect to go up or down?
 
Sinbad said:
Wait, the same pressure causes a breeze?

Lol

Please answer my question about why low altitude high pressure air isn't all rushing up to high altitude all the time?
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I suspect you are trolling. No one can be this dense.
 
Damn,the meteorologists must be having nightmares at this revelation
 
scudsucker said:
Packer, imagine a chimney with an open top & bottom, 10 000 feet tall. (+/- 3000m). It is wide enough to fly a paraglider.

You launch at the top into the chimney.

Do you expect to go up or down?

Now, instead of launching into the chimney, imagine launching outside. Do you expect to go up or down?
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If you launched at the top over the chimney the breeze will act like a thermal and you’ll go higher until it plays out. If you launched outside, gravity will take you lower.
 
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