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10:00 PM
So?
 
@SirCumference You're falling into your own trap there - in the setting of black holes, gravity is really not well-approximated by thinking about it as a classical force.
 
@ACuriousMind Yeah, realized the question didn't really make sense...
 
@SirCumference Wrong. The existence of photons does not make electromagnetism less of a distortion of the geometry of a principal bundle. (I keep telling you that there's an equally geometric description of the other forces, but you keep ignoring that)
 
Oh really?
Excuse my ignorance
 
However, the existence of gravitons is highly likely as that's how gravity must look like in the low-energy effective QFT
 
10:02 PM
@ACuriousMind Even if that's not true, why would gravity need to be geometrical at all
 
@0celo7 ::shrugs::
 
@ACuriousMind That was directed at @SirCumference
I know you don't care
:P
 
@0celo7 You can't say that something that is a reply to me was directed at someone else :P
 
@ACuriousMind I can say whatever I want, Bajoran
I forgot the ", @SirCumference"
 
Sigh...yes, you can. It'll just be wrong ;)
 
10:08 PM
Hmm...but gravity still acts differently than other forces, doesn't it?
 
user54412
@ACuriousMind completely random: have you ever eaten a bagel?
 
@ChrisWhite I don't think I have
 
user54412
I just spoke to someone else from Germany who said he never had one until he came to the US
 
user54412
crazy
 
@SirCumference Yes, its relation to spacetime geometry is "stronger" than that of the other forces in a certain sense.
 
user54412
10:10 PM
what do you people use as a cream cheese delivery mechanism?
 
Not to mention, it doesn't attract only certain particles
It attracts anything with energy
 
@ChrisWhite We have a marvelous variety of bread for that, why would we need bagels?
 
user54412
but is your bread topologically nontrivial?
 
@ChrisWhite Holy shit that's right
We had bagels because we bought them on base
But I never saw one in a German store...
 
user54412
actually, the real problem with bagels is that there's no such thing as a decent one outside the NYC area
 
10:14 PM
Einstein Bros has good bagles
 
user54412
I don't blame people in other regions for not liking them
 
@ACuriousMind I miss good German bread :(
 
user54412
@0celo7 you poor, deprived child
 
@ChrisWhite Meh, I've had NYC bagles
I just like bagels
all of them
 
@ChrisWhite No, almost all breads are contractible. Does non-trivial topology somehow enhance the flavour?
 
user54412
10:16 PM
why else do we have rigatoni, penne, and ziti?
 
Crazy Italians
 
@ChrisWhite I think the different shapes are better for different consistencies of the sauce
At least I seem to recall reading that somewhere, it doesn't directly affect the flavour, but how much of the sauce sticks to the noodle
 
Man
UCSB's stipend blows
but I got this Polchinski fellowship thing so I won't have to teach
better than nothing :p
 
@FenderLesPaul the campus is BEAUTIFUL
 
user54412
^ very important
 
10:19 PM
I hope NYU's stipend is very generous otherwise that will be a serious downside
 
Was there yesterday with @DanielSank
 
since, you know, you have to pay to live in NYC
 
user54412
also, since when are fellowships named after living people still working there?
2
 
Columbia has guaranteed housing for graduate students it looks like, but I don't think NYU does
just an option for the first year
 
user54412
@GBeau it's called New Jersey
 
10:21 PM
@ChrisWhite Apparently he endowed it
so it's named after him
ain't that a thang
 
@ChrisWhite can you do that with new york residence? I would imagine they would require you to get NY residence
 
user54412
@FenderLesPaul you also have 2 more years to apply for NSF, which is a rather healthy minimum salary in most parts of the country
 
user54412
(your department will steal as much of the money as it can, but the NSF is pretty strict about the minimum and not teaching)
 
@0celo7 when do my classes start?
 
user54412
@GBeau yes, most grad schools want you living nearby, but honestly the majority of middle class north jersey people live there because they can't afford to live where they work, and they're making easily 5 times as much as you
 
10:24 PM
@BernardMeurer how the hell would I know
 
@ChrisWhite at any rate, if the stipend offer is the same as all the other unis, it's certainly a downside
 
user54412
it doesn't seem reasonable to place a school in the most expensive part of the country and then expect people to live there on less than minimum wage
 
@ChrisWhite wordd
I actually applied to NSF
I won't hear back until March though
 
they said funding info comes mid Feb
 
@BernardMeurer wait are you already starting college?
 
10:26 PM
I applied, waiting for them letters now
 
ah ok
 
@0celo7 You're in college, you should know
 
@BernardMeurer ??
 
When do freshman start goddamit
It's like talking to a sea otter
 
user54412
@BernardMeurer In the US, any time in Aug, Sep, or Oct, depending on what the school feels like
 
user54412
10:28 PM
and that's not counting summer-before-freshman-year prep courses, get-to-know-everyone events, and other such stuff
 
Damn, that's a wide range ; thanks @ChrisWhite
 
Usually September.
 
@ChrisWhite how much would you weigh the funding as a factor for choosing a school?
i.e. if school X gave you 30 grand (including summer) but also forced you to get a research assistantship
whereas school Y gave like 29 grand (not including summer-no summer funds) but you aren't forced to get any assistantship
 
@FenderLesPaul do any of those have a view of the ocean?
 
yes one of them
I just used those two as an example
there were others but funding is similar
 
10:32 PM
Go for the biggest bucks first :P
 
I'd go with the ocean one most likely ; but I wouldn't follow my one advice ever
*own
 
haha
Don't worry UCSB is my top choice but I'm trying not to go on hep-th reputation and beaches alone
 
Btw, congratulations. :-)
 
@FenderLesPaul I dunno, those sound like two great reasons to me
 
Also the burrito on UCSB is badass good
 
10:43 PM
Any astro-nerds here?
 
user54412
@FenderLesPaul I'd say not having to teach every semester is huge. I had to teach once for experience, and thus am able to graduate in 5 years. Every other department in my field takes 6-7 years to graduate, and many of these in large part due to teaching.
 
user54412
After all, if 20 out of your 60 (optimistically) to 80 (realistically) to 100 (unfortunately) hours per week are spent not doing research, you have to spend proportionally more time in school.
 
user54412
Beyond that though I'm not sure it matters. I guess this depends on what "research assistantship" means. It's not very well defined.
 
user54412
At some places, this is "do my dirty work that's unrelated to your education or thesis" whereas at others it's "we will have an easier time funding you if you can just connect your results to this grant"
 
user54412
Also, if they're not paying you during the summer, do they expect you to still work? Something to definitely ask them. At some places the defacto is everyone stays anyway and gets more money. At others, most people are spending summers interning in industry, so the school doesn't want to commit to funding people who are getting paid elsewhere anyway.
 
10:49 PM
@ChrisWhite is it normal to spend that much time on your work or is that Ivy-League work ethic
 
user54412
It might be a Princeton astro work ethic. My friends in other departments have noted we have pretty terrible work-life balance, including the faculty.
 
The PhD students in my lab don't work 80+ hours, not that that means anything
 
user54412
Then again, the thing about my research is it's hard to leave it at work. You go home, eat dinner, and think "aha! I know what to do next" and spend the next several hours working unexpectedly.
 
user54412
I mean, I've never known a lab biologist who spent less than 80 hours per week in lab -- at least we're not that bad.
 
In experiment they're pretty much constrained by beam time at the various labs
Or how fast the undergrads can make samples
Oh god 20g of that crystal...
There goes next week
 
10:54 PM
At least you perhaps get paid for it :P
 
@FenderLesPaul :(
 
@ACuriousMind :(
 
user54412
@0celo7 There was actually a famous case in my field a few years ago, where a non-"elite" astro department berated its PhD students for not working 80-100 hours per week, saying they won't be able to compete with Princeton and Caltech (mentioned by name) if they don't step it up.
 
Now that^ is just nasty.
 
@ACuriousMind actually, I might get on the paper. maybe.
If I make the thing that they write the paper on I should at least be mentioned in a footnote ;)
 
10:57 PM
"We thank the slave undergrad assistant for producing the samples"
 
@ChrisWhite Awesome thanks
that actually puts a lot of things in perspective
@DanielSank why the sad face?
 
@ACuriousMind Can I put "slave work resulted in at least one paper" on my CV?
 
Sure :)
 
user54412
@FenderLesPaul He was responding to "UCSB's stipend blows"
 
So I talked to my grad student sensei about TeX
No one in experimental solid state physics uses it.
He loves it, but it's just not standard
 
user54412
11:00 PM
one day, young grad student, you will learn the ways of the arrows in this chat room ;)
 
And they look at you funny if you write in Computer Modern
@ChrisWhite he's probably on mobile
 
@ChrisWhite ahhh
 
user54412
interesting -- my mobile shows the arrows -- not well, but they work
 
Not mine.
 
^ iDevice?
 
11:04 PM
Yup
 
There's your problem
@ACuriousMind Why can one not differentiate a Fourier series unless the function it represents is continuous and $f(-L)=f(L)$
And why can one arbitrarily integrate Fourier series, on the other hand?
 
@0celo7 At the places I worked as a grad student and post doc 80-100 hours would represent a panic week, but less than sixty would be treated as slacking off unless you were simply more productive than the rest of the group.
 
@0celo7 How could a function with $f(-L)\neq f(L)$ have a Fourier series?
 
It's hard to keep up 70+ hours a week and still look after your health, so most people fit into that 60-70 range most of time.
 
@ACuriousMind Uh, it converges to the average at the jump of the periodic extension?
 
11:09 PM
But crunch time happens and you expect to see to 80+ hours weeks more years than not.
 
user54412
@dmckee look after my health? hahaha :(
 
@0celo7 You can just write down the integral, can't you?
@0celo7 How is it a Fourier series of the function if it doesn't converge to the function?
 
@ACuriousMind I can just write down the derivative too, doesn't mean it makes sense.
 
user54412
I actually gained 20 lbs during job season
 
@ACuriousMind The Fourier series converges to the function except at isolated points
 
11:10 PM
How? @ChrisWhite
 
user54412
uhh... biology? conservation of mass?
 
He at a lot and sat even more
 
user54412
my job does consist of sitting in a climate-controlled room all day long, moving only my fingers
 
Have you tried eating less :P
 
@ACuriousMind I'm confused, so now discontinuous functions don't have Fourier series?
 
user54412
11:14 PM
I should probably only be eating 1200 calories/day, but I didn't evolve the ability to think well on an empty stomach
 
@guest If you were in reach I'd swat you with the Big Foam Clue Bat (tm). That's like asking how close he is to finishing.
 
@0celo7 No, I mean you can write down the value of the integral: $ \int\sum_n a_n\exp(\mathrm{i}xn)\mathrm{d}x = \sum_n a_n\frac{1}{\mathrm{i}n}\exp(\mathrm{i}xn)\lvert^{2\pi}_0 $ and this sum convergence because the original series converged
 
@ChrisWhite Hew, how's the thesis, anyway
 
Swat!
 
user54412
@0celo7 Further along than yours, actually
 
11:15 PM
@ACuriousMind Why does this converge, but the derivative need not?
@ChrisWhite I'm probably not going to go for PhD, not nearly motivated/nerdy enough
 
@0celo7 Because convergence of $a_n$ implies that of $a_n/n$, but not that of $a_n n$
 
I can't work 100 hours a week or learn machine code
 
I apologize @ChrisWhite and @dmckee
 
@ACuriousMind tfw doing convergence of series in analysis right now
uhhh
proof?
 
@guest I was actually mixing metaphors. Some User Friendly and some Ph.D. Comics.
But perhaps the UF is out of place here.
 
11:16 PM
@0celo7 $a_n/n\leq a_n$.
 
@ACuriousMind Ah.
We stated that theorem today, it will be proved on Thursday.
Wait, no, we did prove it today :P
We didn't prove the absolute convergence theorem
test, whatever
@ACuriousMind Ah, and it won't be differentiable unless $f(-L)=f(L)$ because at that point the FS will be discontinuous itself (and hence not differentiable)?
 
I appreciate the advice @dmckee :-)
Thnx
 
@ACuriousMind Ok, so how does one prove that the FS converges to the average of a discontinuity
 
@0celo7 math.SE is your friend
 
whoa...
how did you find that
 
11:24 PM
@0celo7 Second hit for "fourier series average discontinuity"
 
Well, that's too advanced.
 
11:44 PM
@ACuriousMind is it sad that I do solve(y=v_ot+at^2/2,t) because I can't do it by hand
 
@0celo7 didn't you get a 5 on ap phys?
:o
 
What if I didn't
 
I didn't finish it lol. I got a 3.
@0celo7 Idk
 
Why didn't you finish
 
it was a long exam.
the calculations took too long.
wbu
 
11:50 PM
@3507 I got a 5
 
then why can't you solve that basic equation?
 
that's what I wanna know
but ACM won't tell me
 
ask your doctor. idk.
 
in all seriousness, I don't know the quadratic formula off the top of my head
 
Then complete the square!
 
11:52 PM
how am I supposed to remember that complex algorithm!?
idk if it's $b^2/2$ or $(b/2)^2$ or what
maybe $b^2/4$ or smthg
 
@0celo7 are you being serious though? are your mental abilities declining?
 
YES
 
because they should be increasing.
your brain hasn't even fully developed.
 
I probably killed off part of it
 
i think that's impossible without some kind of physical effect.
did you bang your head somewhere?
or drink too much alcohol?
 
11:56 PM
@3507 Perhaps.
@3507 Yes.
Maybe both at once?
 
so you were drunk and you banged your head somewhere, and destroyed your brain.
 
Sounds right, can't remember ofc.
 
true.
 
What's up with everyone
 

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