Thanks a lot to you three: Jaynes (tribute), vanhees71, Andy.
I started reading Jaynes, appreciate it so far, interesting and readable, as you recommended, Andy.
@vanhees71: thanks once more for your detailed explanations. I think it is crucial, your remark that the Old Geniuses had just...
(not a paradox nowadays, but it was an issue for years)
https://en.m.wikipedia.org/wiki/Gibbs_paradox
It's not a question about a formula. I don't understand the motivation in physics to claim Gibbs mixing "paradox", the discontinuity point. What bothers the physicist to ask for a continuous...
I have an interesting(IMHO) approach to explaining how the vortex tube works.
There are a few explanations on wiki, but not a simple and convincing final one.
https://en.wikipedia.org/wiki/Vortex_tube
Normally a vortex tube, that runs well, howls very loud.
It is a kind of aerodynamically...