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1:42 AM
@CrazyBuddy it's true
 
 
1 hour later…
2:46 AM
@ManishEarth Yeah, I know that. Just that he stopped answering for a while and doesn't come to chat either made me think that he doesn't visit us often (@Sklivvz) :D
 
3:44 AM
hey is it really unclear what the person is asking for in physics.stackexchange.com/questions/83329/… ? I thought he just wanted an intuitive explanation of the theorems. It seems like a reasonable question. There are other questions asking for intuitive explanations of things.
 
Anonymous
3:58 AM
@NowIGetToLearnWhatAHeadIs I agree with you. Voted to reopen.
 
Anonymous
This is now a possible consequence of having burninated the tag.
 
Anonymous
prereprweddaac
 
I am going to delete my snarky comment on the question.
 
4:38 AM
I was just about to click the link... Grr...
 
@NowIGetToLearnWhatAHeadIs Yes, it is unclear. What about the theorems does the OP want explained? Why aren't the explanations on Wikipedia or in standard references sufficient? Those things need to be clarified in order for a question to be acceptable.
Any question which essentially asks "teach me about X" is not appropriate here. There are definitely places for that kind of information (e.g. Wikipedia), but we are not it.
 
5:11 AM
@DavidZ to be fair, it is appropriate if the topic being addressed is not too broad and the user explains his current state
 
 
3 hours later…
user54412
8:30 AM
So apparently I'm the only one who thought How can a single integral equal a triple integral? was a pure math question
 
@ChrisWhite You've answered that and now, you want it to be migrated?
What about rep. score? :P
 
user54412
I voted to migrate, and then answered it anyway, because I figured it could use an answer and I didn't want to wait for it to get moved before answering
 
Rep. is conserved... Don't you worry. You'll get that in math :D
 
user54412
I don't know what I would do with rep on either site
 
Trusted user??? And to make "voicey" comments like these... :P
@Shog9 As a somewhat high-rep user of -- and, more importantly, active contributor to -- Physics StackExchange, thank you. Every point is spot-on. — Chris White Oct 31 at 7:55
 
user54412
8:39 AM
 
user54412
my math rep does need some improving i guess :P
 
Wait... you've got only 12k... I thought I saw it was at "15" o_O
 
user54412
nope - just 12
 
(Oh, maybe josh)
 
user54412
and slowing down too
 
user54412
8:40 AM
I think he's close to 20k now
 
Sometimes, I get confused by both of you guys' answers (the style is more or less the same)
though he's quite active :D
@ChrisWhite: Where are you in Facebook? I can't find you o_O (Is that your real name? :D)
We have an SE circle over there :D
(C'mon in and join us) ;-)
 
user54412
there are a lot of people with that name :P
 
user54412
user image
3
 
@ChrisWhite Nice..!!! So, that's what you've been doing? :D
Heh, brave enough :D
So, you're a fan of MS paint... Right? Phew... A companion :P
@ChrisWhite: I've read that 3 times... LOL :D
 
 
3 hours later…
12:25 PM
@ChrisWhite mine probably is more bumpy. Let's see
 
12:41 PM
My math rep is weird as a result of multiple bounties
 
@ManishEarth Have some mercy..!!! I should read..!!! :D
 
Well, if the eigenbasis is given, the first route I'd try is assume $p,q$ have an eigenexpansion and reduce the problem to conditions on their expansion coefficients. — David H 23 secs ago
eigen expansion? Okay, I know what it means, but seriously, why do they tack on "eigen" to everything? Eigenvector/eigenvalue/eigenfunction/ket/eigenspace is fine, but eigenexpansion? :o
 
1:13 PM
As a physicist, I'm damn certain. Because my eigenfunctions are responses produced by a black-box system which are proportional to the input signals, so clearly the black-box contains either an SL-operator or gremlins. ;) — David H 6 mins ago
GREMLINS!!!
 
 
2 hours later…
3:16 PM
@ManishEarth ?
 
?
oh
I think that's because the pressure of the surroundings cannot be changed by such a small system as the system itself.
So q=q_p
And we already know that all changes to the surroundings are rev
so q=q_rev
not sure
 
If $\Delta S = \frac{\Delta H}{T}$ then $\Delta G$ will be 0 always.
 
3:41 PM
@ShuklaSannidhya so? that's only for surroundings
 
not sure though.
not in the mood to recall thermoD at the moment :P
Wait, you're 15, right? Why are you doing thermoD? Learning on your own? (if so, nice!)
 
So $\Delta S_{surr} = \frac{\Delta H_{surr}}{T}$ assumes that pressure of the surrounding remains constant?
 
@ShuklaSannidhya also that all processes are reversible from the POV of the surroundings.
which is almost always true
Not sure if the pressure bit is always true
 
@ManishEarth It is in my syllabus. So I have to. Not that I want to.
 
3:45 PM
ThermoD in 9th grade syllabus? Which board?
 
@ManishEarth 8th? WTF? I am in 11th.
 
Oh ah
hmm
Clearly the math part of my brain broke down
Now that makes more sense
 
 
3 hours later…
7:15 PM
今日は
Hullo?
 
user54412
Hi @Gugg
 
OK, so it doesn't work. :(
 
user54412
?
 
My Japanese imitation.
 
user54412
Your picture is still the same
 
user54412
7:29 PM
also, since I can't read Japanese, my mind ignores it
 
7:46 PM
 
@Sklivvz So? Puh.
 
still, after three years it's been harder than expected
 
 
2 hours later…
9:28 PM
@DIMension10 regarding your latest TRF comment. I totally don't understand what your problem is with my answer. I didn't say anything about natural units. I flagged your comment as unconstructive because it was basically only repeating your answer... if you have something constructive to say about my answer then it's fine. If you simply disagree, downvote and move on.
 
9:57 PM
I'm posting here so we don't clutter the comments section with minutiae
 
@DIMension10 also in referenced to this comment, I am certain that I have not downvoted any of your posts recently, and I think I have never downvoted anything you have written.
 
When i say "there are a few errors in your transcription" I do not mean that the formula with natural units is incorrect, but that it is not the same formula as in the video! The OP copied it wrong even though what he wrote is a valid formula. Clear now?
 
user54412
@Sklivvz don't bother - he's just a troll, and one that doesn't even know the physics he's talking about
3
 
Funny story: folks email us all the time about being "serially downvoted". Invariably, they think they know who is responsible. Often as not, they're completely wrong and the votes are from multiple different users who've happened across their crappy posts and voted appropriately... But even when they're right and the votes are from a single person, they're almost always wrong in terms of who it was.
4
 
ITS MY ENEMY
 
10:10 PM
right. Where "enemy" is usually "the poor sap who actually took the time to explain what was wrong with your post". And folks wonder why we don't make comments mandatory...
6
 
user54412
sometimes I leave a comment on a LQ post without downvoting, and then someone else comes along and downvotes at the same time - guess who gets the blame
 
@Shog9 That's partially my motivation in mentioning that. I got a couple of downvotes on old answers in the last few days, and suspected maybe he was downvoting in retaliation for some slight. Then I found that comment. So maybe he thinks I'm downvoting him, and he is returning the favor. Otherwise, I wouldn't mention it.
 
 
1 hour later…
11:23 PM
I am doing HW
Two billiard balls of equal mass undergo a perfectly elastic head-on collision.
----------
If one ball's initial speed was 1.80m/s , and the other's was 2.30m/s in the opposite direction, what will be their speeds after the collision?
 
11:55 PM
Woohoo for new laptop! Long overdue...
 

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