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00:13
@Obliv According to wikipedia, all infinite cyclic groups are isomorphic to $(\mathbb{Z},+)$. Therefore, in this group, one can easily pick a subset e.g. $\{x\in \mathbb{Z} : x+5n \sim x\}$. This combined with modular addition, gives the finite subgroup $(\mathbb{Z}/5 \mathbb{Z},+)$. @acuriousmind can help me to iron out any details I mistaken (if any)
00:35
How is charge on parallel plates distributed among atoms on these plates? I'd expect an exponential law similar to Fermi-Dirac or Bose-Einstein statistics but I'm not a physicist and don't know the details of these laws.
^In a capacitor
 
2 hours later…
yeah I read it
It's dumb
It's just about T symmetry
vzn
vzn
@Slereah it was published in PRL. not good enough?
The paper is fine
The journalism around is not
T symmetry isn't related to time travel
It's not even mentionned in the paper at all
@Obliv Proof that it can't: Suppose an element $f$ had finite order, $f^n=e$. Well $G$ is cyclic, so every element can be written as some $g^k$ for integer k, so $f=g^k$. Then $g^{kn}=e$, which contradicts that $G$ is a group of infinite order generated by $G$.
@NowIGetToLearnWhatAHeadIs HAH
@NowIGetToLearnWhatAHeadIs aww I got it wrong!
Always consider the identity first. Dang.
02:44
Correct me if I'm wrong, Schwarzschild black holes don't rotate, but Kerr black holes do, right?
@Slereah Okay, so how about this
0
Q: Can a star form a Schwarzschild black hole?

Sir CumferenceIf I recall, a Schwarzschild black hole is a non-rotating black hole (unlike a Kerr black hole). However, can a star form a Schwarzschild black hole? I ask this because, just as all nebulae rotate, all stars rotate, right? So if a star collapses into a black hole, shouldn't conservation of angul...

Oh wait
I don't think they can be found in nature...
Crap
vzn
vzn
@Slereah agreed there seems to be a disconnect "somewhere" but the article is basically interviewing the authors on their own work...
03:40
Why do applied physicists make way more money than theoretical physicists?
user116211
03:59
@SirCumference applied physicists have more change of getting any job.
@SirCumference Because one discipline is useless and the other isn't?
What kind of question is that lol
@0celo7 Oh boy...
Can there ever be something I like that pays?
Thanks...
In general, real world skills pay more than useless academia bullshit.
04:04
I have no idea what I'm gonna major in
user116211
@SirCumference maths?
I would've loved to go into astronomy, but god knows there's not enough jobs
Finance, clearly.
@0celo7 Yeah clearly
@SirCumference You have the nose for it.
04:05
@0celo7 That's not what I'm trying to say
user54412
@0celo7 No. Data science. No one goes into finance any more.
user116211
C'mon every theoretical physicist is not jobless ;\
I just don't want to spend another 15 years in school and struggle to get a job that doesn't pay
@ChrisWhite It was a joke, he's Jewish.
@0celo7 Oh...I get it...
Goddammit
I'm laughing through gritted teeth
04:06
@ChrisWhite Please tell me you know Morse theory
user54412
@SirCumference Who says they do? The applied physics professors don't. And the further you are from academia, the less the subject on your degree matters.
user54412
@0celo7 I take it that's not about dots and dashes?
user54412
I vaguely remember it being mentioned somewhere -- was it Milnor?
@ChrisWhite Doctors apply chemistry, and they make way more money than theoretical chemists
Engineers make more money on average than nuclear physicists
user54412
I'm pretty sure doctors don't do any chemistry to speak, and very little biology either.
04:08
@ChrisWhite Well...I need to show given a submanifold $X\subset\Bbb R^N$ there is a linear function $f:\Bbb R^N\to \Bbb R$ such that $f|_X$ is Morse.
user116211
@Sir: If all it comes to money, then why not become a Mexican drug Mafia ;P
@ChrisWhite Neurologist?
user54412
Also, it helps that they have a medieval guild santioned by the government (in the US), so they can charge whatever they want.
@MAFIA36790 It's not all about money, but I don't know how Imma support myself in the future
Astronomers have to go to school for an additional 15 years after college, they struggle to find jobs, and it doesn't pay well
user54412
04:09
@SirCumference Doctoring is about memorizing what you're told, and doing it without question. Ask anyone who's been to med school.
@SirCumference That's what my sister studied
She hated being poor so she moved to LA and did banking
user54412
@SirCumference 15?!? :(
@ChrisWhite Even the people who invent medical drugs make more money than quantum chemists
@ChrisWhite Yep bud, at least according to Rob Jeffries
user116211
@SirCumference quantum chemists
Starting salary: 50k
Quantum chemistry is a branch of chemistry whose primary focus is the application of quantum mechanics in physical models and experiments of chemical systems. It is also called molecular quantum mechanics. == Overview == It involves heavy interplay of experimental and theoretical methods: Experimental quantum chemists rely heavily on spectroscopy, through which information regarding the quantization of energy on a molecular scale can be obtained. Common methods are infra-red (IR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. Theoretical quantum chemistry, the workings of which...
04:11
@SirCumference god damn
that's what shit-tier engineers get after 4 years
@0celo7 That's for astronomy
user116211
@SirCumference That's theoretical chemists, but yeh I got it.
It eventually evens out to 100k, if you're lucky
But that takes another 15 years
user116211
Well, what about those who are perpetual students?
user116211
How do they earn money?
04:12
@0celo7 It's a bit less than nuclear engineers, but they're similar in salary
@MAFIA36790 They don't.
user116211
ooh.
@SirCumference NE starting is like 70k after 4 years
not fucking 15
Going for another 7 years takes a lot more money than it pays off
user54412
The going rate for postdocs in astro (and indeed most physical sciences) is 40k in cheap places, 60k in expensive places, 75k if you win a fellowship. And that's after 5 (if you're at my school) to 7 (if you're everyone else) years of grad school.
@0celo7 Oh no no no
Starting salary of an astronomer is 60k. They need to go to school for another 15 years after high school tho
04:14
how does 15 even make sense
4+7=11
@0celo7 God knows, but I've asked two astronomers (one from the Astronomy SE, the other IRL) and they both gave that estimate
user116211
@SirCumference minimum 10yrs is necessary in every field.
every?
user116211
I mean natural sciences and math.
The second one basically urged me not to go into it: "Don't go into astronomy if you want to be rich. Only go if you are really, really, really dedicated"
user54412
04:15
^ well that's true
@MAFIA36790 Yeah but they don't start out with 50k usually
Don't do 99% of things if you want to be rich...
Doctors can make 500k after working for 30 or so years
user116211
@SirCumference true
Only astronomer that makes that much is Neil deGrasse Tyson
04:16
Hey guys
And he didn't even discover anything! (to my knowledge)
Just do spinal surgery @SirCumference
user54412
@SirCumference So does the chair of my astro department. You should compare overall values, not extreme cases.
I have a giant favor to ask
who has time to help me see through a paper
@kevinTahN. Don't be an astronomer
04:17
@ChrisWhite how does one figure out department head salaries
@SirCumference lolz
I wonder how much mine make
@ChrisWhite How do you know that?
To be honest
Maybe I should become a doctor, but there is blood...
I'm not a fan of blood
are you scared of blood?
user116211
@SirCumference I hate blood
04:18
Shaddup
D:
user54412
@0celo7 Public universities report it. Private universities, you have to listen to gossip, note their house sizes, and look into how much endowment is set aside to pay them on interest. It's not easy, but it can be done.
@0celo7 Nah, I'm just scared of having to mess around with bloody patients
Like wtf these people's lives depend on me
so who wants to volunteer to read the ideas I would try to come up with
@ChrisWhite How would I go about checking this out
I'm at a public
You know that kind of stress?
04:19
@SirCumference you're clearly not doctor material
@0celo7 Thanks...
@SirCumference yw
So what's next? What else makes good money in the science field?
I'm honestly desperate, my parents are telling me astronomy is a "micky mouse major"
Win the Nobel.
@SirCumference Medical Physics
04:20
Win the Nobel and the Fields.
user116211
@SirCumference You have to work with dead bodies full of formalin...ah!!!
@0celo7 Yeah I'll work on that
And a few Millenium problems.
Does the Fields give you money @ChrisWhite ?
Researchers make no money...
Duck
@SirCumference Medical Physicist or computer scientist (Senior programmer or research scientist)
04:20
Anyways
@SirCumference If money is your main concern you're not researcher material
user116211
@0celo7 you have to become isolated from the society to solve those problems ;P
@0celo7 I just need to support myself, man...
make money on the side, do research for the love
user54412
@0celo7 I actually don't know.
04:21
@SirCumference support yourself != rich
at least that's my plan
@kevinTahN. Huh...well what job should I go into mainly then?
I'm a theoretical guy
user116211
@SirCumference academia
I guess comp science...
@MAFIA36790 You mean as a professor?
that's hardly theoretical if you want to make money
user116211
04:22
@SirCumference yep
@0celo7 I know...that's the only applied thing I'm good at
What's so hard about understanding that 99% of theory does not pay
Because it's 99% useless
@0celo7 The "not" part
@SirCumference I have to confess I don't know anything about what physicist (theoretical) make, but I think they must be pretty rich. Most of the ones I know live in rich communities and have rich company of friends
@kevinTahN. Tenured profs, sure
04:23
@kevinTahN. I don't need to be super rich, I'd just like to be comfortable with a profession I like
But what % of physics students get tenure
user116211
@0celo7 it would be very less, i betcha
HDE is gonna go into astrophysics
Good luck to him...
@ChrisWhite So no idea about my Morse problem?
@SirCumference me too. I used to be want to be like you, and had no care for money and believed in happiness and love, but I had no money and everyone treated me poorly, and I also noticed I could not do the things I loved. It changed me
@kevinTahN. Oye, man...I know...
@ChrisWhite whoa what's this
@SirCumference Money is the fuel that determines where we go in life
@kevinTahN. Sadly, and those who have a passion for paying professions are lucky
Plus there's no astronomy jobs in NY (where I live)
Go figure
Stupid light pollution
@SirCumference wow
04:26
@ChrisWhite Jesus these salaries are crap
@0celo7 Which?
@ChrisWhite how did you find this?
user54412
I'm that good, what can I say
@SirCumference I was just in NY, it is a cool place with tons of great people and cool meetups. There is no other place like NY
@kevinTahN. I know... ;-;
Sigh...
user54412
04:28
I'm starting to think that @SirCumference is talking about actually operating a telescope... which these days is done by pretty much a separate group of people from the scientists who use that data.
@ChrisWhite Oh yeah...still, no jobs in NY
I've researched
I'd have to move to like Arkansas or something
user54412
No, there are no telescopes within 1000 miles of NYC.
@ChrisWhite Where do you think you're gonna work?
Well someday I hope to get offered a Physics job, but until then, I have to first see if I could even make it into a grad program someday, when my financial situation is stable
NASA accepts people like an Ivy League school does
As in, 5%
Then again, you got into Princeton XD
user54412
04:30
@SirCumference Hope? A university somewhere in the US. Expect? Something vague and computery in the Bay Area, like everyone else my age.
You guys are fine, don't worry. I am sure you will figure it out
@kevinTahN. Doubtful
I'm not sure what to do here
@kevinTahN. Maybe. The best answers I've found online are "If you are worrying about money, you're not cut for the job" or "You won't be driving a Mercedes, but you'll survive"
Maybe I need that "most functions are Morse" theorem
Which are good answers, I guess...
I'm more worried about the location.
And time needed to study before I can get a job
And the difficulty of finding a job
04:32
Kanye West is just too good
@0celo7 Aren't you a bit worried tho? About finding a job in your area?
Not to be rude
@SirCumference I don't have an area
I'm a military kid
I grew up on two continents and in 4 states
As long as it's not Florida or some other miserable shithole, I'll be fine.
@0celo7 Er, where do you think you'll be working after you get a PhD?
Unless I get married, which would constrain me.
@SirCumference if have heard that if you have a good advisor, and are generally nice (and still have your innocence) and genuinely enjoy what you are doing, it should all work out.
@0celo7 I grew up all over too
04:34
@kevinTahN. I hope I'm a nice guy, and not sure what you mean by innocence
I'm the most innocent guy I know in terms of, you know...
@SirCumference No, not really
That's not something I pride myself in
What
@SirCumference Go grab some ass on the subway
04:34
Hell god no
That's sexual harassment
Only if she doesn't like it.
No, it's still sexual harassment
@SirCumference well the world is strange, that's all I meant, but There are plenty of cool Universities out there,
Chances are she won't like it
04:36
@SirCumference Who are you gonna trust on this, me or you
I'm not horny enough to grab a random woman's ass
One of us is not single
...
Sigh...
I give up on things
But in terms of knowledge about anatomy, I'm also super innocent
So that's fantastical...
XD
04:37
lol did not expect that to onebox
user54412
...
LMAO
Ok I'm done
So who wants to be my critic for the next month. I want to seriously try to write some paper. Does anyone have time to may be look at the crap I will be writing and say something about it:/
I don't even know how this is done
damn Morse theory
user116211
@SirCumference You can join Wall Street, BTW.
user54412
04:39
Don't expect promises up front. Just write something and drop it in this room. Since no one here is working anyway someone will probably look at it.
@MAFIA36790 Yeah no
Do I compute something and then write a story about what it means?
hehe
@ChrisWhite No one is working?
@kevinTahN. Just make sure it's not something like this
user116211
Econophysics is an interdisciplinary research field, applying theories and methods originally developed by physicists in order to solve problems in economics, usually those including uncertainty or stochastic processes and nonlinear dynamics. Some of its application to the study of financial markets has also been termed statistical finance referring to its roots in statistical physics. == History == Physicists’ interest in the social sciences is not new; Daniel Bernoulli, as an example, was the originator of utility-based preferences. One of the founders of neoclassical economic theory, former...
user116211
hmm.
@ChrisWhite if I don't work I have to deal with an angry Brazilian geometer and the DHS
God knows what that's saying
@SirCumference cough cough. . . I would try to make it less like the mentioned paper. . . . :)
user116211
@SirCumference It's simply saying go to the Wall Street after graduating in physics
04:42
@MAFIA36790 Yeah ok
user116211
and there is an assured decent salary.
@MAFIA36790 I have no interest in that
user116211
Unless something bad happens when Trump comes.
@SirCumference @MAFIA36790 how much do those Wall street guys actually make?
The only thing I have coming for me is $50k in astronomy and a bunch of SE rep on Astronomy
That'll be my life
user116211
04:43
@SirCumference yep ;))
I'm literally stupid
user116211
@kevinTahN. don't know.... but they say there is a good salary ;\
The only solace will be when I have enough rep to match my salary
rep cannot be negative.
user116211
Hmm. What about Lumo? How does he earn money?
04:44
Koch bros. probably
user116211
He is not in academia also ;\
user54412
@kevinTahN. 300k the moment they graduated college, give or take
@0celo7 True, I'd be losing a lot more money than I'd be earning if I went to school for 15 years
user116211
@SirCumference why not get a scholarship?
@MAFIA36790 Easier said than done
04:45
@ChrisWhite OMG please if any of you make it there, tell me how to do it lol, that sounds epic
user54412
@SirCumference Uh, grad school in the sciences pays you, you know
user116211
well, but of course there's a possilbility.
I actually said "easier done than said"...
I'm losing it
user116211
@SirCumference There are grants also for research.
I bet there's some obscure judaism scholarship
user116211
04:46
Funding, I would say.
I was told to always look into obscure scholarship
@0celo7 Wow...
Let's change the subject to something that came up in my philosophy class
Yeah good idea
Is there any truly racially insulting thing you can say to a white person?
Yeah. Call them "cracker" or "whiteboy"
user116211
04:48
@0celo7 white person?
Or "mayo"
user54412
@kevinTahN. The vast majority of those people are alpha-male types. They all went to Ivies, went to all the best frat parties. They type that walk in the room, size you up, shake your hand hard enough to let you know who's boss, and then talk about playing some pickup basketball after work.
@SirCumference No one gets insulted by those.
user116211
Why would you want to do that?
^
@0celo7 You really shouldn't speak for everyone
user54412
04:49
1 message moved to Trash
I give you an example and you claim "no one gets offended by it"
@ChrisWhite is being mean
user54412
I'm saving you from trouble.
@ChrisWhite hehe I am certain that that's not me , plus I wont want to live that kind of life everyday hehe
@SirCumference A small minority might.
@ChrisWhite Oh I'm sure
04:50
@0celo7 So racism is subjective, I guess
End of story?
@SirCumference Ok, how about "societally recognized"
@0celo7 Subjective
Not defined well at all
Racism is subjective however you look at it, and it depends on the relationship between the person saying it and the person receiving it
@0celo7 Also why do you have a philosophy class?
@SirCumference Lack of intelligence
I'm going to sleep
'Night
Same here
'Night y'all
night night people cool chat :~)
04:53
what kind of nose is that
Voldemort?
user116211
@0celo7 he HAZ nose?
hehehe,
:^)
user116211
@kevinTahN. pinocchio's nose?
05:18
So, back...
Does anyone here know QM?
05:43
1
Q: What happens to the energy of fermions when a degenerate gas forms?

Sir CumferenceFor example, when an electron degenerate gas forms, two electrons (of opposite spins) occupy each of the lowest possible energy states up to the Fermi energy. This is because of the Pauli exclusion principle. However, as all the electrons reach low energy states, where does all their energy go? ...

06:22
@SirCumference I make it up as I go along - does that count? :-)
@Danu I blame the referendum
06:38
I went to university intending to study physics and discover a unified field theory (which I thought would be really easy if only physicists would get their finger out). Along the way I discovered I really liked quantum chemistry (and QFT proved to be harder than I thought) so I did a PhD in solid state photochemistry. Then when I discovered there were no jobs in Academia I went to work for Unilever as a colloid scientist. Then after I'd made some money and paid off the mortgage I became a computer nerd, which is probably what I was really destined for all along :-)
06:51
@JohnRennie Yes
@SirCumference I've answered your question - I hope my answer is helpful. I also hope my comment on career choice is helpful.
@JohnRennie Yep, thanks! I'll keep it in mind :)
@JohnRennie think LMU has an astronomy MSc.
@Danu a Masters? But presumably you need to do a physics degree first.
@JohnRennie Sure.
07:05
Actually, a masters in astronomy makes a lot of sense. It gives you a chance to try specialising in it before committing to a PhD.
@Danu I want your assistance with something. I want you to be my advisor for a month. I want to write something in ADS/CFT. I feel like I am too lazy and if i am not kept accountable I can't do anything
Lol.
@Danu I want to do some quassi trivial computation or something, since I have no paper yet. I think I am kind of ready to compute something simple. Can you like spend your spare hours like proofreading what I come up with lol
You should perhaps read Erdmenger's book?
@kevinTahN. Probably not, realistically. I've got my finals in 2 weeks :\
(and they last for about 3 weeks)
oh darn,
How do I find an ego free next level bored physics professor to read what I will have every week so I don't produce embarrassing stuff
07:12
Honestly, you probably won't.
Do you know any stack exchange bros in Los Angeles or anywhere who are super bored and might enjoy doing this. I will do all the work I am just looking for a second pair of eyes
yeah, it is hard to find someone lol
@ACuriousMind maaaaaybe?
hmm, that would be nice
Let's summon him. Hey @ACuriousMind let's make this happen :^)
I can finally compute CFT correlation functions,I feel like I am master of the Universe :) hehehehe
Vertex ops, and Energy momentum corr func stuff lol
I have been trying to secretly write a paper for a while now and I think I can write a kindergarten level ADS/CFT paper now. I am just too lazy and scared I will make a giant error and be laughed at, so somebody has to stop me if I start making wrong computations or saying things that don't make sense
I think what you should do most of all is see what has already been done
yeah the old guys have done a lot of stuff. I was just thinking wow, there is so much that has been done already and I have to learn how to go over the literature and access what has been done and what needs to be done, but most importantly what I can actually have a chance of doing at my current level.
07:29
this is a general comment, not targetted specifically at Chris, but I wouldn't underestimate the intellectual satisfaction involved in a (good) IT job. Yes, there are lots of routine and unrewarding jobs in IT and there are lots of bored and unhappy programmers out there. But there are also lots of IT jobs that are really hard and really interesting.

I think the skills involved in the more interesting edges of IT are very similar to those involved in physics and maths. You'll be struggling to understand something phenomonally complicated and looking for innovative ways to improve it.
@Britain You know you fucked up when most of your population googles "What happens if Britain leaves the EU" the morning after the vote is passed.
I think you're being a bit unfair to the 48.1% of Britons who did not vote to leave the EU.
user116211
07:44
How could the English lose against Iceland ;(((
user116211
@JohnRennie No; that's because of that damn manager ;(
@JohnRennie Given that the other big google search for the UK on that same day was "what is the EU", I still think "fucked up" is a fairly accurate descriptor
It really could have been prevented if more people were aware
user116211
in Agents of Nothing, 21 hours ago, by KutuluMike
or the one guy who voted to Leave because he was sick of all the Iraqi immigrants.
user116211
when you see Trump is happy with any decision, then dude there is something serious wrong in that decision ;\
08:31
lel
user116211
@Slereah WTH is that? ah! Anderson!! hmm.
it's a hoot
I don't even know why they include quantum tunneling in time travel
user116211
@Slereah Enough proof against this hoax.
user54412
@SirCumference You know, if nobody knew what the EU was (and I'm skeptical of that), one could argue that they did the right thing by voting to leave. Call me American, but it seems that if a people don't even know who a government is then they cannot consciously subordinate themselves to that government, and such a government is then a tyranny.
what
user116211
08:45
ah! Tipler cylinder was discovered by that same Cornelius Lanczos who wrote The Variational Principles of Mechanics; interesting.
Well it was discovered by Tipler
Or more precisely by van Stockum
user215373
hi
user116211
08:59
> The Tipler cylinder was discovered as a solution to the equations of general relativity by Willem Jacob van Stockum[1] in 1936 and Kornel Lanczos[2] in 1924, but not recognized as allowing closed timelike curves[3] until an analysis by Frank Tipler[4] in 1974.

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