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...had you properly studied geometry, you would understand this.
...nothing at all casts light on the moon, which does a perfect reflection of shadow back to Earth to show red light.
QuoteWHAT MAKES AN OBJECT FALL?Oh my God.
I explained this already, no less than a post ago.
Here, let's see if we can explain this yet again.
I have two boxes. One is filled with feathers. One is filled with metal spheres. Both are filled so there is no air space. Which will safely be able to be set on top of the other box, and which will cave the box in?
This is buoyancy. There is nothing else.
Ths is most definitely NOT bouyancy.
Bouyancy is the pressure acted surface of an object by the surrounding fluid.
The fluid happens to have a pressure gradient.
The gradient means that for every infinite millimeter nanonmeter of elevation thw pressure below is higher than the pressure above.
The FORCE is generated by difference in PRESSURE / SURFACE.
Which happens to only be in the upward direction (given the fluid is relatively stationary).
So
By using a object-surface interactio with the surrounding fluid.
You need to explain how the above mentioned mechanism
1. of presuee gradient pushes down, whennit only pushes up and
2. how fluids knows whats inside a surface, to know the density, when all it knows is touching surface.
QuoteWHAT MAKES AN OBJECT FALL?Oh my God.
I explained this already, no less than a post ago.
Here, let's see if we can explain this yet again.
I have two boxes. One is filled with feathers. One is filled with metal spheres. Both are filled so there is no air space. Which will safely be able to be set on top of the other box, and which will cave the box in?
This is buoyancy. There is nothing else.
It's to defend against airborne illegal immigrants. I assume its just in case Mexico starts using catapults to sling illegal immigrants into the US.
Buoyancy, again, is a balance.
bouancy:No, it is the upwards force.
no it's the upward force minus the gravity
Things float when the buoyant force (i.e. buoyancy) balances gravity (and the centripetal force).centripedal: was my example of a math conventionYes, notice how it is the force to hold the car around the curve?
the net inward forces holding the thing in from shooting out.
if there's a nascar car going around the turn there's wheel friction + angled ramp normal force = centrepdal to hold the car around the curve
i.e. the inwards force required to maintain that curve.
However, I may have misread your previous statement. Yes, it does not include any force for tangential acceleration. So any force from things like the engine going to accelerate the car tangentially is not part of it.
There's no such thing as 'negative buoyancy'.
You just making crap up.
In orbit, everything is weightless, so no buoyancy there.
This actually a technical engineering challenge for liquid filled things like batteries, cause the gas bubbles move toward higher temperature, lower surface tension, without buoyancy.