If liquid is not compressible, why do we need special hydraulic fluid? Why not just use water?
In: Engineering
I studied rheology the science of things flowing. You can think of molecule in rest as spaghetti, all tangled up, doesnt really wanna move through small pipes, and when pressure is added the spaghetti gets straighten out and suddenly it moves more and more easily. This is called non-newtonian behavior. Also like bottle of ketchup in a kar that needs a little bang to get it flowing:). Water molecule spaghetti does not straighten out at all so it does not lubricate well at all. It is called newtonian behavior.
Also plain water can make things rust and act all kind of funky ways 🙂
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