Originally Posted by
gerryndennis
Nope, same amount of energy.
Therefore there is more force (same psi X more square inches). The wasted force (squeezing) is exactly balanced by the extra force available due to the extra surface area.
Hi Dave,
I think that you get what I am trying to say but how does one resolve 'pounds per square inch multiplied by more square inches' and say that it equals the same amount of force?
Surely the more area you have for a fixed amount pounds then the ratio, pounds:inches, drops?
For example the highest psi for any given amount of force will be found contained by the smallest area, practically inside a sphere and conversely the lowest psi will be found in an infinite area, say in space.
So the goal in trying to achieve the highest psi ratio with out resorting to using more energy or pressure is to reduce the inches that it acts upon to a minimum.
Happy to be proven wrong though, thanks.