Question: Fundamentally, is the existence of negative temperatures a consequence of (a) the violation of entropy postulates, (b) inequilibrium, or (c) finite number of configurations? Context: In my statistical mechanics class, we first began by claiming the existence of a function $S$, called e...

I've seen in a lot of movies and animations of bubbles forming when something moves underwater (eg- fish swimming). Is it theoretically possible (under any temperature, pressure circumstance that are possible in oceans) that bubbles could form miles underwater, just because of mehr movement?

Why don't the surface tension of the film of soap solution ( or any other liquid) increases or decreases when we increase the area of the film manually by applying a force ?? Isn't it analogous to the increase in tension of the string on stretching it.

First of all, I have a confusion about the definition and idea of Tension For example, In my Physics Textbook, The idea of tension is written like this: "Let's say there is a wire with a cross-section area of A and its length is Lo. If I Hang the wire from a point and hang a weight of W from the ...