The h Bar

0celo7

03:01

@Slereah this is some good physics

Yuzuriha Inori

03:37

Morning fellows...

Droleulb

mornight

Slereah

04:03

@0celo7 what is

GettingNifty

04:15

Nowww... FINnalllllyyYYYYY.... No ONnnenn ITTSSSs, A GIRLLLLLL!!!!!!

Volcano son what the fuck you gonna do about it

huhn

6IX9INE "Kooda" (WSHH Exclusive - Official Music Video)

►

GettingNifty

04:31

Jesus wasn't a protestant.

Later

skull

@Mithrandir24601 perhaps, this may help

Droleulb

@0celo7 get on dc :'(

Mithrandir24601

06:15

@skull It does actually, thanks! :)

skull

np, good question :)

Secret

07:27

[Random]

Changing history = simultaneous rearrangement of events in a section of a worldline

Obviously took a lot of energy to do

Perhaps the flip flop state of a grandfather paradox in type 3 universes can be stabilised by expending extreme amounts of energy so that the time travelling act will not be erased from existence by creating a singularity at the point of departure while preserving the altered history

more investigations on the plausibility of this later

Secret

09:52

news.nationalgeographic.com/2018/05/…

skull

Slereah

12:02

Important question

should I write the sphere as $S$ or $\mathrm{S}$

skull

why is it so important?

Slereah

Aesthetic

skull

whichever appears more pleasing to you

Slereah

I was born without a sense of beauty

very rare disorder

skull

12:17

then it's time to correct that

after all, it is in the eye of the beholder

Slereah

I was born without eyes

very tough

skull

-_-

Slereah

x_x

skull

._.

Secret

12:55

18 hours ago, by 0celo7

I learned $\int_a^b f=F(b)-F(a)$ in kindergarten

wut

$$\int e^{\%} = \%$$

$$\int e^{e^{e^{\%}}} = e^{e^{\%}}$$

0celo7

13:23

@Slereah stuff like this i.gyazo.com/79beed5b9b3f29f488476a3e29d0b2b9.png

Slereah

where is physics

0celo7

adm mass

Slereah

But that's the bogus Riemannian ADM mass

0celo7

wow, mean

Slereah

Is there a name for like

a warped product

but instead of a product, the manifold is a bundle

lılostafa

14:05

@bolbteppa Thanks for sharing :)

Semiclassical

14:19

the post-defense brain drain is real today

Slereah

how did it go

Semiclassical

good enough

some obvious stumbles, and definitely points where I could have been clearer about the setup

but, good enough

Swapnil Das

@0celo7 I just wanted to ask, is there something like Theoretical Reactor Physics

?

Loong

14:37

@SwapnilDas Do you mean like a book?

Swapnil Das

No, a field of study

I wanted to know if Nuclear reactor Physics is all about experimental work or else has some Theory.

@JohnRennie Any idea^^ ?

John Rennie

@SwapnilDas you mean reactor design?

Swapnil Das

yes

John Rennie

That's really engineering.

Its well understood physics, but the systems you're working on are complicated.

Loong

@JohnRennie and politics. :-|

Slereah

14:44

how come the site with the Feynman quote in the starboard also has this : genius.cat-v.org/eric-cartman

and it's not like a huge quote website

Swapnil Das

Is there anything like Computational nuclear physics?

@JohnRennie

John Rennie

@SwapnilDas As it happens a friend of mine works in reactor design studying heat flows in reactors. He does mostly compute modelling.

Slereah

there's only 15 people quoted

It seems an odd sample of people to quote

Swapnil Das

@JohnRennie I see. Do they do any hands on stuff or just computers?

Slereah

I have passed 7000 points

hurray

3

John Rennie

14:45

@SwapnilDas I think it's pretty much all computer modelling.

Slereah

3000 left and I have the Power

Swapnil Das

I wanted some career advice.

I wanted to work in Nuclear Physics, but I like Theory rather than experimentation. What should I study, then?

Slereah

Nuclear physics

there's plenty of nuclear physics theory

Swapnil Das

That I also know :P

@Slereah Is that as competitive as string theory?

I have heard that many nuclear Theorists work in the industry. Is that a career transition or do they have something of their relevance?

Loong

I don't know any real nuclear theorists in the industry. Most of the people here are engineers.

Swapnil Das

14:52

I see.

Slereah

Nuclear theorists work more at like

accelerators

Like the nuclear accelerator in France, I forget the name

Possibly SPIRAL2

SPIRAL2

SPIRAL2 (Système de Production d'Ions RAdioactifs en Ligne de 2e génération) est un projet de faisceaux exotiques pour la recherche en physique nucléaire fondamentale et interdisciplinaire au GANIL. == Explications == Il est basé sur un accélérateur linéaire de particules, le LINAC, qui fournira[Quand ?] des faisceaux d’ions stables de très hautes intensités. Les réactions induites par ces faisceaux stables dans différentes cibles de matière produiront des noyaux exotiques à des intensités inégalées. Ces noyaux exotiques (non présents naturellement sur Terre) permettront aux physiciens d’étudier...

that's the one

except very French

Swapnil Das

@Slereah So accelerator physicists can be theorists?

Slereah

Sure

You use the various nuclear models to predict reactions

Swapnil Das

Aha!

Slereah

and then test those predictions

Swapnil Das

14:54

That's something exciting

Slereah

As exciting as the nuclear N-body problem can be

Swapnil Das

No hands on work right? ( Asking just bcoz I hate it )

@Slereah Fundamental physics is competitive, you know.

Slereah

Tell me about it

Swapnil Das

about?

Slereah

it is a figure of speech

22

Q: Why does "tell me about it" not mean "tell me about it"?

A commonly used American phrase, but one that still baffles me if I stop and think about it. Why does "tell me about" actually mean, "I understand what you're talking about as I have experienced it myself". Not only are you not literally inviting the person to go into more detail, but (most confu...

as u can check from StackExchange

Swapnil Das

14:57

Aha

Thanks.

Secret

[Random]

Swapnil Das

Well, do you know any famous accelerator physicist , who is a theorist?

Secret

What if the Theory of Everything is just a whole bunch of accidents and cannot be expressed in nice equations

Swapnil Das

@Secret No problem. The journey will be rewarding :)

Slereah

Warped manifold papers are all in math people tensor notation

very bad

Secret

15:06

$T (\otimes \otimes \cdots)$ stuff?

John Doe

@Mithrandir24601 Hi how's it going? Short QMT question: When describing a general quantum measurement. Do you have an idea of what is meant by "the pointer states are in fact determined by the requirement that different measurement outcomes decohere via interaction with the environment?"

0celo7

15:27

@Slereah 3 Yvonne citations

Wonder if that's all I'll need...

Balarka Sen

15:42

I put Ra Ra Rasputin over This is America

►

@0celo7 This is lit son

0celo7

15:53

@BalarkaSen maybe

are you read to read some topology

Balarka Sen

what kind

0celo7

(co)homology

Balarka Sen

ok

Secret

blogs.scientificamerican.com/cross-check/…

Sounds like microsleep stuff

0celo7

@BalarkaSen section 6.4

Balarka Sen

16:11

@0celo7 having a looksie

so which bit do you want me to read

0celo7

unless you learned Riemannian geometry without me noticing, probably the whole thing

Thm 6.22 and Rk 6.24 are the topological bits

Balarka Sen

Ok

0celo7

and Lemma 6.23

Droleulb

@BalarkaSen hi

A. Rudzinski

16:33

Question: There was a scientist before Richard Feynman that managed to inspire his works, I believe his last name began with an 'E'? Does anyone happen to remember the name of this scientist?

John Rennie

Einstein?

A. Rudzinski

Much less commonly known than einstein

Balarka Sen

@Droleulb Hey

A. Rudzinski

but plausible guess haha, I probably should have made that more clear

CooperCape

Engels.

A. Rudzinski

16:36

I think that's it! Thanks CooperC

CooperCape

Ermmm

Sure

I'd check that

John Rennie

@A.Rudzinski Engels wasn't a scientist

bolbteppa

Erwin Schrodinger?

John Rennie

Enrico Fermi?

bolbteppa

Euler?

Droleulb

16:43

@BalarkaSen how was your final exam?

Balarka Sen

It was meh

Droleulb

when are the results back?

Balarka Sen

I took two admissions. The first was good and the second was, as I said, meh

next month

CooperCape

oops

Droleulb

i guess you could say it was a good meh

as opposed to a bad meh

Balarka Sen

16:47

tru

lets see if i get in

Alex K Chen

Hello @BalarkaSen you got admitted into CMI ?

Balarka Sen

I took the exam yesterday

It was ok, but I don't think I'll get in.

Alex K Chen

how was ISI entrance ?

Abcd

@BalarkaSen how were the questions?

@AlexKChen ISI*

enumaris

hmmm

Balarka Sen

16:50

@AlexKChen Much better. I did 18 correct on the objective section, which is slightly worrying, and 6.5/8 on the subjective part.

@Abcd Not hard, but complicated to nail down in 3 hours for slow thinkers like me, I think.

0celo7

@BalarkaSen I don't get why you can't just have the top mathematician in India write you a letter

4

Alex K Chen

6.5/8 ? You're definitely in, so chill ! (well that's unless you have a very very very bad luck on objective cutoff due to JEE retards writing the test, which I hope don't happen)

Balarka Sen

@0celo7 That's not how the Indian education system works.

Abcd

@BalarkaSen were they like JEE Maths questions?

Balarka Sen

@AlexKChen Yeah that's what I'm hoping. Usually the cutoff is like 60-70, so I think I'll sail through.

@Abcd No.

They were very natural and not at all tedious.

0celo7

16:52

there's really no way to circumvent the tests?

Alex K Chen

olympiad

Balarka Sen

^

Alex K Chen

people who clear national olympiads in math/informatics don't have to write the tests I guess

enumaris

@BalarkaSen how about bribing somebody?

Alex K Chen

(one of my indian friends told me, idkO

Balarka Sen

16:52

@enumaris Lel

Droleulb

@enumaris not everyone has a job like you

can't afford the monet

enumaris

bribes don't have to be money

you can bribe them with cookies

Alex K Chen

which one you'll join @BalarkaSen Delhi or Bangalore ISI ?

enumaris

who doesn't like cookies?

Balarka Sen

@AlexK B.Math happens on Bangalore ISI

Droleulb

16:53

o i am pretty good at making cookies

enumaris

you can help out then :D

Droleulb

i can send some

Alex K Chen

And in Delhi ? Statistics ?

And aren't there one in Calokota ?

Balarka Sen

Unsure. I thought B.Stat happens on Cal

Alex K Chen

OK, good luck for the interviews (though I don't think it would propose any problem to someone as pro as you :P )

0celo7

16:55

@BalarkaSen did you understand what I wrote?

Alex K Chen

@0celo7 Did you understand what he said ?

0celo7

My advisor said it was very well written but I've been showing him this for months so he probably knows it too well

@AlexKChen what?

Balarka Sen

@AlexKChen Thanks

Let's see what happens

Alex K Chen

@0celo7 what ?

0celo7

@BalarkaSen are you gonna wash for the interviews

Balarka Sen

16:56

no

0celo7

damn, you don't give a fuck

Droleulb

wash what

0celo7

@Droleulb Balarka showers once a week

Balarka Sen

@Droleulb my butt, presumably

CooperCape

Oh God I remember this shower conversation

Pretty sure celo just called everyone filthy

Droleulb

16:57

i used to shower once a week when i was balarka's age

like 2 yrs ago

0celo7

that's naaaaaaaaaaaaaaaaaaaaaasty

Droleulb

not really because i didn't sweat

Balarka Sen

@0celo7 I still haven't regained the energy to have a proper look. Give me a few hours.

0celo7

that's even worse...are you an alien?

Balarka Sen

@Droleulb Dam son

I don't sweat either

CooperCape

16:57

Nov 30 '17 at 17:39, by 0celo7

@CooperCape yes, people who don't shower daily are gross

0celo7

they banned me for preaching that truth

CooperCape

For real?

0celo7

Yes.

Balarka Sen

@Abcd Oh, were you asking if the ISI questions are like JEE? I don't know about that.

The subjective part was total calculus

CooperCape

Was that the time when you got banned for everything you wrote tho

Balarka Sen

16:59

I had to write a proof of Banach fixed point theorem in one basically lol

Droleulb

@BalarkaSen its already established ur me and im u

Abcd

@BalarkaSen Have you seen JEE questions?

Droleulb

uh oh class in 10 mins brb

Balarka Sen

@Abcd A little. My impression of them are they are generally more tedious and less puzzle-like.

@Droleulb bbye

Abcd

@BalarkaSen Nah, not that tedious ... they are like "very tricky" ... you should know lot many tricks and manipulations...

you can see this paper for example: drive.google.com/file/d/0BxIR7Kj71SMKd0V2UlBMYVJpRHM/view

drive.google.com/file/d/0BxIR7Kj71SMKT2YtaFBPajRaOE0/view

Balarka Sen

17:06

Mm I see

@BernardoMeurer

Death Grips - Black Paint

►

This is pretty good!!!!

This is more like Death Grips

0celo7

@BalarkaSen wtf is Streaky about

Balarka Sen

@0celo7 idk but D O N T T H R O W I T O N T H E G R O U N D

Secret

18:02

Random path integral question

What if I need to integrate two paths at the same time, do I just expand the number of dimensions so that the two paths get parametrised into one path in a larger (infinite) dimension?

Droleulb

18:13

$\ni$

wow

Balarka Sen

mind$\ni$blown

Droleulb

i am $\ni$ r e v e l a t e d

Balarka Sen

r$\ni$aelaizations

Droleulb

sorry i don't understand 1$\ni\ni$7 speak

i need to show you this diageram from my topology book

in other news i wrote "diageram"

we already have physics mods in here that understand the context and don't go around banning people for no reason.

ArtOfCode

→ 3 messages moved to Trashcan

Go read the latest chat moderation post again, and don't do this. Mkay?

It's even conveniently pinned for you

0celo7

18:29

what moderation post

ArtOfCode

the one that's pinned

Droleulb

same i can't see it

it's not there for me

ArtOfCode

Apr 30 at 17:01, by John Rennie

We're More Aggressively Enforcing Self-Moderation In Chat

0celo7

yeah, I felt insulted so I flagged the message

isn't that what I was supposed to do

DJMcMayhem

@Droleulb For the record, no one "banned them for no reason". An offensive message was posted, it was flagged, and enough users validated the flag so the system automatically deleted the post and suspended them.

Droleulb

18:32

but we're friends

it wasn't meant badly

Catija

Being friends and intent are irrelevant.

ArtOfCode

No. Take the point. Inappropriate language is, funnily enough, inappropriate, and will be dealt with.

Catija

We can't know your intent. It's not welcome behavior on Stack Exchange. Period.

gateprep

How should I use ReaserchGate

I don't have an email account of my university

Please help what can be done

Droleulb

@ArtOfCode which message was inappropriate by the way?

you deleted all of them and I don't remember which one it was.

ArtOfCode

18:36

@Droleulb Then take the cautious route, and assume they were all worthy of deletion.

0celo7

that wasn't even a physics stack exchange user

why are we being accosted

ArtOfCode

@0celo7 Don't pull this again. You know how chat works, and how you have to behave. You've been told enough times. Take the point, and behave as you should.

0celo7

Don't pull what? Have I misbehaved?

skull

What's going on here?

gateprep

Pls help me abt reasrchgate

ArtOfCode

18:38

This room was placed in timeout for 5 minutes; the topic of this room is "General chat for Physics SE (physics.stackexchange.com). For MathJax see meta.stackexchange.com/a/220976. Don't ask about asking, just ask." - conversation should be limited to that topic.

^ That.

Inappropriate conversations have been tolerated here in the past in the name of leniency. That kind of behaviour is no longer welcome, period. If it's seen, it will be removed along with the users who take part in it. This is the only warning you will get.

Robert Harvey

@gateprep researchgate.net/search

skull

@ArtOfCode thanks

Droleulb

skull

5 mins ago, by ArtOfCode

Inappropriate conversations have been tolerated here in the past in the name of leniency. That kind of behaviour is no longer welcome, period. If it's seen, it will be removed along with the users who take part in it. This is the only warning you will get.

enumaris

hmmm

sounds legit

skull

18:47

I just asked:

9 mins ago, by skull

What's going on here?

and this is the answer I got

10 mins ago, by ArtOfCode

This room was placed in timeout for 5 minutes; the topic of this room is "General chat for Physics SE (https://physics.stackexchange.com/). For MathJax see https://meta.stackexchange.com/a/220976. Don't ask about asking, just ask." - conversation should be limited to that topic.

That^

enumaris

So I've never seen that guy before lol

skull

10 mins ago, by ArtOfCode

^ That.

enumaris

I guess he's an overall room mod?

skull

Yeah

enumaris

censorship is always fun

Catija

18:50

All of the site moderators are chat moderators. That's how the chat system works.

enumaris

I see

Droleulb

how many mods does it take to just ban a single dude?

DJMcMayhem

@enumaris For the record, if anything gets flagged, you're likely to get an army of blue people, since we all see the flags. (as well as any user with 10K rep)

Droleulb

answer: too many

gateprep

@RobertHarvey I dodnt get the thing that I wanted like I cannot messege or chat in chatrooms in researchgate

can anyone list thee utility of researchgate and tell me how it is different from stack

I mean staxkexchange

enumaris

18:51

Anything? Across all SE sites? You guys must have to look through tens of thousands of flags a day lol

DJMcMayhem

No, only in chat.

enumaris

I see...

So any moderator from any SE can come moderate this chat

does that system make sense...hmmm...

Physics Meta

0

Q: If the community deletes what I know to be an excellent question, is it impolite to gloat?

A few months back, I posted what I know to be a very insightful question. It was labeled as "off topic" for "reasons" which remain incomprehensible to me. The question has a short answer, which is "Yes." The long answer is "Yes $\dots$, but physics isn't mathematics." Someone posted an answ...

discussion

Balarka Sen

Hey @CooperCape

CooperCape

Ohai :)

What... what happened here

enumaris

18:54

somebody got banned I gather

CooperCape

Anyway

Catija

@enumaris Chat is network-wide with two site exceptions. Expecting a site's moderators to be around to handle things here 24/7 is not possible. We absolutely do frequently defer to local mods but, in some cases, it's more necessary to act than not.

Mods are not required to moderate chat at all, so some mods would never see it.

enumaris

I see...

Balarka Sen

@CooperCape you don't want to know, presumably

CooperCape

Pretty much yeah

I'll probably say something stupid and revolutionary if I do.

Balarka Sen

18:55

Marx debunked revolutions yeaaaaars ago

CooperCape

My friend is radicalising me to Maoism

Balarka Sen

Yikes, that's too far left

Rand al'Thor

@gateprep Research Gate is very different from Stack Exchange. SE is primarily a repository of Q&A; RG does have Q&A but it's primarily a repository of people and their research.

Balarka Sen

Be a postmodern neo-Marxist

CooperCape

One word from Chairman Mao is worth 10,000 from others.

Balarka Sen

18:57

That's where all the fun is at

CooperCape

Where's the edge.

The revolutionary mindset

Purgers gotta purge

enumaris

hmmm

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