A
Anonymous
Off topic:
This brings to my mind my discussion with some ... engineer.
The topic was vacuum pumps. Their name plates were stating something like -0.2 bar and second one 0.6 bar. According to that guy, the first one was "creating" better vacuum. Or maybe more vacuum in vacuum?
And why did I mention it? Well, mathematical description of things requires models. They are build one on top of the other from very simple (like F=m*g) to more complicated (which is in fact usually the order the humanity discovered them). The trick is to know why they are so simplified and can still work while the reality is much more abstruse.
Regards,
Jacek Dobrowolski
This brings to my mind my discussion with some ... engineer.
The topic was vacuum pumps. Their name plates were stating something like -0.2 bar and second one 0.6 bar. According to that guy, the first one was "creating" better vacuum. Or maybe more vacuum in vacuum?
And why did I mention it? Well, mathematical description of things requires models. They are build one on top of the other from very simple (like F=m*g) to more complicated (which is in fact usually the order the humanity discovered them). The trick is to know why they are so simplified and can still work while the reality is much more abstruse.
Regards,
Jacek Dobrowolski