How can I explain the difference between the pressure in a pressure cooker and the pressure at the bottom of the ocean to someone not used to scaling up or down general concepts? Nicely. thanks yo
>>7704483
I mean explain how there isn't a difference.
>>7704483
You sure you you're the one who should be explaining things to people?
>>7704490
Too bad there is a difference, between positive and negative pressure....
>>7704483
Just give them the equation for pressure.
P= F/A. I don't understand how it gets any harder than that.
>>7704753
theres isnt negative pressure in a pressure cooker or the bottom of the ocean.............
>>7704800
When comparing the two directly then yes there is. There is a directional component.
>>7704822
i dont think you understand what negative pressure is
>>7704951
You don't. "Negative pressure" can mean either the inside of a vessel has a higher pressure than the outside, or vice versa. If you were in a vacuum, you can say that's "negative pressure." Or if a pressure cooker lets off steam and then cools down, it's going to have internal "negative pressure." Either way, you're not going to measure pressure as a negative number. It's just a way to describe the direction of pressure that is considered opposite of the norm.
>>7704951
>pressure pushing inwards
>not the opposite of pressure pushing outwards
You are dense.
>>7704483
But that is a different kind of pressure, pressure caused by gas having nowhere to go when it is generated as opposed to pressure caused by the weight of the liquid.
>>7705433
I... what?
Both are basically driven by entropy, and are the result of high/low density systems interfacing with each other.
Are you dumb?
>>7705103
He is obviously considering the hypothetical situation of an atmospheric chamber inside the cooker and at the bottom of the ocean on which a positive pressure would act.
Uhm one thing is made to cook things and the other is made to keep Cth'ulu at bay