The h Bar

0celo7

9:04 PM

@ACuriousMind Had a meeting with my adviser, I finally understand the Gauss Lemma

It's just the chain rule.

Why didn't you tell me that

Bernard Meurer

wut wut

guest

He probably did but, as usual, you forgot.

0celo7

I bet he said if in his passive aggressive tone that he loves so much

Bernard Meurer

More like agressive-passive

@NeuroFuzzy You up?

0celo7

9:21 PM

@ACuriousMind Ok, so my adviser said I should probably read all of this. I want to do a guided reading of Milnor this summer, so could you please tell me which sections I really need? Assume I'll be doing all of the first chapter minus nets and I'll figure out what I need/want from the second.

@BernardMeurer what are you doing

BF4?

Bernard Meurer

@0celo7 Reviewing some code for DanielSank

I'm not home :c

We need to get our hours straight

NeuroFuzzy

@BernardMeurer Yes!

0celo7

Up?

It's 1:30 in Cali

ACuriousMind

@0celo7 Hmmm...you'll probably want to read at least I-V, although there's probably bunch of stuff in I and III you don't need.

And I don't think you need a deep understanding of (co)homology, but you should know what they are

Bernard Meurer

@NeuroFuzzy Great! two things:
1. Congratulations on the material you have on YouTube, the simulations look amazing!
2. How can I learn to code those? I know Python and C but haven't studied C++ much yet. Do you have any tips on how to achieve your proficiency?

NeuroFuzzy

9:27 PM

@0celo7 I'm also not too down, man :D

Bernard Meurer

@0celo7 The earth is flat; timezones are an illusion created by the government

It's always midnight everywhere

NeuroFuzzy

@BernardMeurer Oh jeez. Well I started coding in BASIC around age 11 and have a long history of how I learned stuff. I just did a bunch of projects whenever the mood struck me hah

ACuriousMind

@0celo7 You definitely don't need VII, I say

Bernard Meurer

@NeuroFuzzy BASIC? Yikes!

C's bad enough for me

and I started around that age as well, but headed towards Python rather than C++

NeuroFuzzy

ex. I learned object oriented programming from a highschool java class. I learned actual C++ object oriented programming (memory gets screwed up if you program improperly) from a project trying to flip minecraft maps upside down

Bernard Meurer

9:30 PM

Didn't enjoy C at all which caused a certain repulsion to C-like languages (C#, C++,...)

Even though I currently teach C

NeuroFuzzy

@BernardMeurer so this would be the project where I actually learned good memory practice youtube.com/watch?v=YHSbrCZXHLU (flipped a whole chunk upside down. The weird visuals are just to induce vomiting)

0celo7

@ACuriousMind What bunch of stuff?

I think I want to read all of I, just so I have a decent understanding of general topology.

NeuroFuzzy

So I'd just take it project by project

ACuriousMind

@0celo7 You probably don't care about e.g. paracompactness, topological groups, convex bodies or the Baire category theorem, although the latter is a fundamental topological result one should know anyway

Bernard Meurer

@NeuroFuzzy Gotcha, I just need a project that demands C++ performance now :p

0celo7

9:33 PM

Paracompactness? You mean the thing all of riem geo is built around?

ACuriousMind

And I don't think you need the theory of universal covers or the SvK theorem, but you should know what a fundamental group is

@0celo7 But there you can always just replace it with "the space admits partitions of unity". No need to get all topological about it ;)

NeuroFuzzy

@BernardMeurer My go-tos: n-body simulations, Fluid stuff, Drawing fractals. But I guess it depends (on your interests)

0celo7

@ACuriousMind If it's Hausdorff...

Bernard Meurer

Fractals and n-body simulations for sure

love fractals

ACuriousMind

@0celo7 Which it always is in diffgeo!

0celo7

9:35 PM

@ACuriousMind Not always in HE though.

Bernard Meurer

What library do you use for the vizualizations tho @NeuroFuzzy?

And do you use Boost for the calcualtions?

ACuriousMind

@0celo7 ...which is entirely irrelevant to what you need to read Milnor, right?

0celo7

I want to read HE properly one day, too.

NeuroFuzzy

@BernardMeurer I like SDL 'cause it's cross platform, but you could definitely use visual studio and some microsoft thing

lazyfoo.net/tutorials/SDL

0celo7

But he said Chapter 7 is actually very difficult because they pull PDE theorems out of nowhere.

ACuriousMind

9:37 PM

@0celo7 Well, you have to make up your mind - you can't ask me to say what you really need for Milnor and then quibble with my choices because you might need stuff for other things ;)

0celo7

@ACuriousMind Sigh, ok.

NeuroFuzzy

@BernardMeurer SDL also has threading and stuff so I usually don't have to use boost for anything

ACuriousMind

@0celo7 Of course, you can just read the entire chapter. I don't think you actually gain much time by skipping individual rather short paragraphs

0celo7

Tartini Violin Sonata in G minor ''Devil's Trill Sonata''

►

Bernard Meurer

@NeuroFuzzy Written in pure C; badass

0celo7

9:38 PM

@BernardMeurer Been listening to this for a few minutes, did not even notice it.

It's not even bad.

ACuriousMind

And I don't know how cohesive Bredon is, i.e. whether the text is very dependent on prior mentions or not

0celo7

@ACuriousMind That's why I have you!

ACuriousMind

Haha, fair enough

NeuroFuzzy

@BernardMeurer Hmmm? What's written in pure C?

Bernard Meurer

@0celo7 That's definitely a great piece, even for me that generally dislike Tartini

NeuroFuzzy

9:39 PM

Eep I should stop talking, I have some homework due

Bernard Meurer

@NeuroFuzzy SDL is from what I'm reading. Written in pure C and 100% compatible with C++

@0celo7 Maybe string pieces are your thing

0celo7

As opposed to?

NeuroFuzzy

@BernardMeurer ohh. Yeah that has positives and negatives.

0celo7

@BernardMeurer Wow this really isn't bad...

Bernard Meurer

@0celo7 Piano pieces, orchestral pieces, duos, quartets, ...

0celo7

9:41 PM

I hesitate to say "good."

@BernardMeurer Pretty sure piano sucks.

Bernard Meurer

@NeuroFuzzy Like pretty much everything in life except electrons

0celo7

@ACuriousMind The BCT is in my analysis book.

alarge

@BernardMeurer You might want to go SFML if you do C++.

0celo7

@BernardMeurer Wow I think I like this piece

Bernard Meurer

9:57 PM

@alarge SFML?

@0celo7 I'll try to find you more of that type :)

alarge

@BernardMeurer SFML: sfml-dev.org

0celo7

I don't get it

Bernard Meurer

Me neither

@alarge I'll take a look at it; thanks for the tip!

0celo7

@BernardMeurer that's you!

Bernard Meurer

@0celo7 Hahahahaha the last square is definitely me

but on a calculator

0celo7

10:06 PM

They say if a mathematician doesn't do their great work by age eleven, they never will.

@ACuriousMind :(

Bernard Meurer

HAHAHAHAHAHA

ACuriousMind

@0celo7 smbc-comics.com/index.php?db=comics&id=2143#comic

0celo7

I've seen that too...

what smbc-comics.com/index.php?id=4003

vzn

10:27 PM

found on digg

After 100 years, scientists are finally closing in on Einstein’s ripples/ Ars goes inside ground zero of the search for gravitational waves. arstechnica

Danu

@BernardMeurer You mean you haven't grown into it yet?

Bernard Meurer

@Danu Wait, what are you replying to?

Danu

You can see by clicking the little arrow next to my message.

Bernard Meurer

Oh, thanks for the tip

0celo7

wtf you didn't know that

Danu

10:30 PM

-3

Q: Why homosexuality was crossed out of the list of diseases?

Homosexuality is not on the current list of diseases according to the World Health Organization since 1990. I understand this act on the level of confirming the understanding of homosexuals. But for me, it seems to fit all the definition of a disease I could find. So what were the official reaso...

biology

Stay classy, HSM...

Bernard Meurer

I didn't mean grew past it as an insult, merely as the relation that as I grew my liking of them diminished

0celo7

I've never listened to a Beatles song AFAIK.

Danu

@BernardMeurer I know. I'm just telling you it'll return.

Bernard Meurer

I was really into them, still have a poster on my wall

@Danu It's been a while that Classical has been my thing :p

Danu

@0celo7 I can whistle the melody of nearly all of them perfectly by now :D (I'm really into whistling in case you didn't know)

Bernard Meurer

10:32 PM

Try listening to Rock or other stuff with only on ear, it really sucks

Danu

@BernardMeurer Hm.... That's the only direction from where sometimes people don't return :P

0celo7

@Danu I can play the Halo theme on an Ocarina, does that count

Bernard Meurer

Specially beatles because when they got remastered people decided messing with Stereo was awesome

Danu

@0celo7 errrr :P

Bernard Meurer

So a lot of times I just can't hear the vocals

because my left ear is fucked

0celo7

10:32 PM

@BernardMeurer I wanna play Halo now!!!!

Danu

@BernardMeurer Eh

Isn't that how they originally were?

Bernard Meurer

@Danu nope, some of it was mono originally

Danu

Yeah but only some

The Beatles had pretty extreme usage of stereo AFAIK

And it makes sense on some of their songs, really

Bernard Meurer

@Danu They did yes, but the remastered versions made it even worse (or better depending on your liking)

Danu

Like here: dailymotion.com/video/…

That's just begging for stereo :D

Bernard Meurer

10:34 PM

Being almost entirely death on my left ear makes it really dull

Danu

@BernardMeurer Just FYI there are special mono versions too

How did that happen, with your ear? Born like that?

The Beatles in Mono

The Beatles in Mono is a boxed set compilation comprising the remastered monaural recordings by the Beatles. The set was released on compact disc on 9 September 2009, the same day the remastered stereo recordings and companion The Beatles (The Original Studio Recordings) were also released, along with The Beatles: Rock Band video game. The remastering project for both mono and stereo versions was led by EMI senior studio engineers Allan Rouse and Guy Massey. The boxed set was released on 180-gram heavyweight vinyl on 8 September 2014, mastered directly from the original analog tapes and not the...

user54412

@BernardMeurer I would think being death in one ear would make things interesting :p

Bernard Meurer

Blew up a tractor engine while fixing it about two years ago

ACuriousMind

@Danu At least that is one sort of post we don't get here at Physics :P

Bernard Meurer

It's slowly getting better and will eventually fully recover

Danu

10:36 PM

@ACuriousMind I remember something about naked women at some point though...

user54412

@ACuriousMind pretty sure I could counter that claim if I could search the delete history

3

Danu

@BernardMeurer Jesus that sucks :(

@BernardMeurer Oh that's really nice.

Bernard Meurer

but for now people think I'm retarded when they talk to me. Or they think I'm fucking with them by saying "huh? huh?"

ACuriousMind

@Danu Do you mean this one?

0celo7

@BernardMeurer I must buy the Halo 3 soundtrack now...

ACuriousMind

10:37 PM

This one was also a bit disturbing

Bernard Meurer

@Danu Lesson: Never trust your grandpa when he says "Chill kid, that motor's gonna work beautifully just bull that string hard and start it!"

Danu

> 2.Ability to orgasm 100% of the time from my invervention and without it.

lol

@BernardMeurer Damnit grandpa!

user54412

The only person I met in person who was noticeably deaf in one ear was a piccolo player (@0celo7). That instrument can do serious damage over time.

0celo7

@ChrisWhite She plays the flute

Danu

@ACuriousMind You bookmark these things?!

0celo7

10:38 PM

She played piccolo in her high school band

ACuriousMind

@Danu One can favourite them

0celo7

@ACuriousMind *favorite

Danu

@ChrisWhite AFAIK professional musicians usually play with earpieces in

My mother is a professional violin player...

ACuriousMind

@0celo7 Shush

Danu

At least when playing in the orchestra

0celo7

10:39 PM

@ACuriousMind *Shushe

Danu

@0celo7 How dare she play poor Piccolo

ACuriousMind

@Danu I only do that with the "best" ones though, aren't that many. This one [NSFW pictures] was also pretty strange, though.

Danu

Unacceptable!

0celo7

wtf lemme see

Danu

@ACuriousMind Really? You actually bookmark this stuff? 10/10

> "Every man, as he crosses the age of 35 unmarried, gains a tendency toward banging his head wildly, unethically, and ferociously against a wall in his room in midnight when he is alone."

user54412

10:40 PM

Wish I bookmarked them. There was a good one I meant to give Danu when he turned 10k ;)

Danu

@0celo7 lol

@ChrisWhite D'awwww <3

Thank you regardless!

0celo7

> $12

wow Bungie

Danu

Did you tell her that? ;)

0celo7

oooo halo CE is just $10

@BernardMeurer So much better sounding in AAC vs. YT

guest

Any decent job offers yet @ChrisWhite?

Bernard Meurer

10:43 PM

@0celo7 Try FLAC or ALAC

ACuriousMind

-2

Q: Can a hammer drive a nail clean through flesh?

I'm interested in hammering a nail into my penis at a very high velocity. Ideally I'd like this to be one smooth motion - the nail should pass cleanly and wholly through with the single strike, such that I don't have to pull the nail through manually after the strike. However, I am unclear on whe...

forces

wtf

0celo7

@BernardMeurer ok find it for me

Danu

@ACuriousMind Your comment on the first is pretty hilarious

@ACuriousMind LOLOLOLOL

user54412

@guest :)

Danu

Speaking of crazy questions

Bernard Meurer

10:44 PM

What do you want?

0celo7

@ACuriousMind you know what bothers me

ACuriousMind

@Danu Now I'm afraid I provoked that, somehow

0celo7

there's this one kill animation in Hitman Absolution where he drives a screwdriver into someone's spine

Danu

Yeah I'm pretty sure that's too much of a coincidence

0celo7

how strong is he

Danu

10:45 PM

@ACuriousMind One of the fastest question-closures ever, I think... 4/5 now

ACuriousMind

@Danu We had a one in under a minute during some chat sessions, I think

HDE 226868

Going, going . . . gone.

user54412

It's closed, so here comes the delete votes.

Danu

@ACuriousMind :(

@ChrisWhite Sigh... You high-rep bastards

ACuriousMind

@ChrisWhite How many do we need?

user54412

10:46 PM

Also, it has a +1...

user54412

@Danu s/high-rep/lazy :p

Danu

@ACuriousMind Closer inspection shows that the user has been active on some other sites already

guest

Prince Albert piercing

ACuriousMind

@Danu huh, you're right

that's strange

That doesn't really seem like a question someone who understands the SE model would post :P

Danu

Interesting...

Could be a sock puppet of one of us

ACuriousMind

10:49 PM

Unless they think physicists sit arouind all day and hammer their...ew

Danu

THE PUPPETMASTER DS IS AMONG US!!!

ACuriousMind

The name choice "Swarm of Bee" just for this SE is also strange

Ah, no, wait, they are called that everywhere but SO

guest

What does "DS" stand for @Danu?

ACuriousMind

@guest Da Superlord

Danu

^confirmed

guest

10:51 PM

Thx

;)

Master

hwlau

I just notice there is a cite function under the question. Are there any people really cite the SE in their paper, thesis?

HDE 226868

35

Q: Acknowledging Stack Overflow in my PhD and 'giving back' to the SO community

This is possibly a silly question, but is there any particular way that I can acknowledge SO in my PhD? I am in the final stages of my PhD, and part of that included Android app building and testing, this has been very successful, in no small part due to the assistance I have received from many ...

discussion stackoverflow feedback

The guy who asked the question.

ACuriousMind

@hwlau The "Yes" is a link

guest

Mod usernames look like links :)

hwlau

I think it is only acknowledgement not actual citation

guest

11:00 PM

Better safe than sorry.

What Einstein said about creativity does not apply today.

0celo7

@ACuriousMind lol

@guest kinky

Einstein was wrong more than he was right

Sir Cumference

Howdy

0celo7

According to what JD has shown us

Danu

@0celo7 Wait, wasn't he saying the opposite?

guest

The evidence does not lie.

0celo7

11:04 PM

JD is always wrong, by extension...

Sir Cumference

What was Einstein wrong about?

guest

Many things.

Sir Cumference

As everyone is.

But elaborate

guest

Read the book.

Sir Cumference

What book?

guest

11:08 PM

Lmgtfy

user54412

@ACuriousMind 3, apparently

Hello

Yo

@ChrisWhite I see

But in order to get the math right, Einstein had to create a new constant number (an unchanging value, like 'pi' or 'e') and stick it inside his general relativity equations to balance them. @SirCumference

Danu

11:17 PM

@guest Lolwat?

ACuriousMind

@guest pi or e are not of the same kind as a fundamental physical constant.

Especially when it is dimensionful.

Danu

Also which constant?!

HDE 226868

@guest Are you referring to the cosmological constant?

guest

That's what the tech site says.

Danu

Oh, haha

Sir Cumference

11:18 PM

What constant?

Danu

Yeah, no that's not a constant like $\pi$ or $e$

Sir Cumference

I still stand by my statement that Einstein was out of his mind. I mean, how does someone figure out that time isn't constant?

It's just assumed.

Danu

????

Sir Cumference

You'd have to be out of your mind to question the nature of time.

Danu

time=constant is a nonsensical statement

HDE 226868

11:20 PM

I have no idea what either @guest or @SirCumference means now.

ACuriousMind

@SirCumference Philosophers have done that since the beginning of philosophy, I think

Danu

constant is defined as unchanging with time

Sir Cumference

@ACuriousMind But the guy proved it.

That space and time are related.

ACuriousMind

@Danu I keep telling people that the "rate with which time changes" is tautologically 1. They never seem to believe me.

Sir Cumference

And then he proves that the speed of light IS constant

guest

11:22 PM

::makes popcorn::

Danu

I'm ragequitting this room of confusion.

Hope you've all gotten your sanity back by the time I'm done with my exam tomorrow.

Bye!

guest

Cya

ACuriousMind

@SirCumference I have no idea what you are talking about. He didn't "prove" anything, you don't "prove" physical theories.

HDE 226868

@SirCumference IIRC, that was a postulate, not a theorem.

@Danu Good luck with the exam.

Sir Cumference

Sorry, meant he developed a working theorem around it

guest

11:24 PM

Do you know what a thought experiment is?

ACuriousMind

@SirCumference: Einstein was not the singular crazy man working in a vacuum which you seem to think he was, cf. e.g. the relativity priority dispute

And if you consider the appearence of names like Lorentz, Poincare or Minkowski in the modern theory, it becomes quickly obvious it wasn't that strange or crazy at think at all if famous mathematicians and physicists also worked on it

In particular, it seems to be Minkowski who realized that relativity was most elegantly described by "spacetime" instead of space and time.

@Danu Rage and confusion are a dangerous mixture

guest

11:45 PM

✡ Einstein's Biggest Mistake

►

15 years of denial

guest

11:59 PM

Some more... @SirCumference

Transcript for