I’m studying aerodynamics. I understand Bernoulli’s principle very well, I just can't wrap my head around why pressure decreases as velocity increases. Like the garden hose example: if you cover the hose with your finger, water flows out of the hose faster (and somehow pressure decreases) but whe...

As far as I have understood, the case is that there is nothing that argues that time or space is continuous, but at the same time we must assume this in order to be able to calculate derivatives or integrals with respect to these, how can we justify this?

As I understand it, there was initially two formalism for QM, before Dirac reunites them both with his famous braket notation: Schrödinger's formalism that involved differential operators acting on wave functions, Heisenberg's formalism that involved linear operators acting on vectors. Now, i...