@BernardMeurer The problem with going for strolls in and around UCSB, is that many of the best walking routes take you past the lagoon or the slough. Either way you might be in for a rather strong odor (depending on the recent weather).
I like to walk so I just got used to it. Used to know all the path around the lagoon and out near campus point. Also where you could scale the cliffs if you (a) had misjudged the tides of (b) the campus police might misconstrue your presence on the beach near a party as "minor in possession".
Not that the latter applies to you, but it applied to me for a while.
@SirCumference:We are consuming degrees from std.iv days. But at last in std.ix, we got to learn the circular measure; some intricate problems and yeh we excel at it and from that day, we hardly face degree in our curriculum. come to Ind;P
Now, won't I call that macrostate $V$ the only equilibrium condition? I thought so, but the postulate tells there can be other microstates which occur at the equilibrium that correspond to macrostate $V/2$; now won't I call the later fluctuation?
If the particles are all in the left half of the box at some particular moment, you can represent the system at that moment by a macrostate parametrized by $(E, V/2, N)$, but the resulting model does not exhibit thermal equilibrium - and in fact is not very useful because it very quickly ceases to be valid.
@user36790 Yes, I'm saying that, in the model of a gas in a box of volume $V$, even if all the particles are in the left side of the box at some moment, you should still consider the gas to be in the macrostate $(E, V, N)$
In a sense, a macrostate represents a whole collection of possible microstates. You can't look at a single microstate (i.e. a single list of positions and velocities) and say "this corresponds to the macrostate X" because a given microstate can be part of many macrostates, depending on how the system is defined.
@user36790 This is true if your notion of macrostate is "equilibrium configuration given by energy, temperature, particle number" and you already assume that equilibrium configurations have uniform probabilities for their microstates, since you can compute energy, temperature and particle number for any given microstate.
@user36790 Of course. Equilibrium is a statement about the probability distribution over the microstates not changing in time - that doesn't make sense for a single microstate since of course a single microstate changes in time.
Say you are using a computer and have multiple Youtube videos playing music (or any other video) at the same time, does the sound produced by the computer's speakers (or a pair of headphones) become louder than just playing one video?
I.e. does the amplitude of the sound waves from multiple video...
@ChrisWhite Like I said in the comment I just wrote, the engineers designed the system to mimic two physical sources when you overlay things, so you could argue it on that basis. But I don't really like it for physics.