#analogies make everything understandable. What's fasctinating
about how the Universe really works, is that a lot of these
things that *look* different are really *the same things*. Are
there subtle differences? Sure. But by the time you have to
nitpick, you're *way* more advanced than I'm gonna ever get.
Thinking of them as exactly the same - #spring #capacitor
#pressure #tank - even mathematically - works perfectly fine.
Also, an #accumulator where a computer adds up numbers - is
*also* spring / pressure tank. It just stores up numbers instead
of electrons, or pressure or whatever.
