The h Bar - 2017-04-11 (page 4 of 5)

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user228700

5:00 PM

:-) Oh, yes, I checked out that feature but this is fine, really. I'll read for 10 minutes before bed each night. I've decided to skip the first two books; I feel like those two serve only as set-ups for the succeeding novels.

A dangerous strategy. You risk the dreaded just one more chapter trap! :-)

user228700

@JohnRennie No no :-) I have years of expertise fighting off that urge and I do quite well. The thought of waking up having had 3 hours of sleep (and then having to work for hours upon hours!) is too scary

I think out of all seven the one I actually really liked was Order of Phoenix.

@BalarkaSen Hmm, I think that was my least favourite.

user228700

Lol. It was the least favorite of many people I know. The only thing I remember about it (other than the plot) is that it was the fattest of them all.

5:04 PM

Strange.

Goblet of Fire was my favourite. As I recall Harry spent much of OOTP being a whiny teenager.

but then harry potter isn't on my top 5 novels or anything so.

user228700

I will tell you which one is my favorite in a few months! (I'm not going to finish them any time soon if I'm only going to get through 2 pages a day :-P)

What's a proof that EM is causal, anyway

and does that proof hold if it's time symmetric

user228700

@JohnRennie Why was it your favorite?

5:07 PM

@Slereah the greens function has delta(t-r)

@Kaumudi.H Well as you say the first two books are really just setting everything up. Then with GOF we meet Voldemort in anger for the first time. I just though the sophstication of the plotting was a step up from the first three books.

user228700

Ah, yes, OK...

user228700

From what I remember, I enjoyed reading OOTP & HBP the most so my favorite will have to be one of those two.

OOTP was Harry being a whiny teen, and HBPrince was better but the story kind of meandered and didn't really go anywhere until (spoiler alert!) Dumbledore gets snuffed.

What the hell Dumbledore dies!?

5:10 PM

Oh no, I've given the plot away :-)

user228700

@JohnRennie That book OOTP taught me a lot more than how much I could come to hate a person (Dolores Umbridge, you...)

I think the theme of OOTP isn't Harry, but Voldemort.

that's the whole point of the dream sequences and the impending sense of destruction beyond the school-life farce

or so i think

@Kaumudi.H it's kind of easy for an author to make us hate someone, and Umbridge is fairly stereotypically nasty.

(I didn't like HBP for the same reason JR said)

user228700

@0celouvsky You've had 14 years to read it; the statute of limitations on punishments for revealing spoilers may have passed about...9 years ago.

5:12 PM

I always liked Umbridge

@Kaumudi.H I'm 10 years old...

Anonymous

@0celouvsky 10 leap years.

i can believe that

user228700

^

user228700

(x'D)

It's OK though because it turns out that Harry is really a younger version of Dumbledore due to an unfortunate accident with a time turner and some vaseline, so Dumbledore isn't really dead.

user228700

5:13 PM

@JohnRennie She is! Jesus, that woman!

user228700

@JohnRennie WHAT?! DID U READ THAT BOOK THE CURSED CHILD?!

How can you even hate Delores

by spelling the name correctly

user228700

@0celouvsky Tell me, how can you not?

The whole time I was wondering why the children were being a Banach of little bastards

Interesting autocorrect

I meant bunch

5:14 PM

lol

Anonymous

banach of little bastards =P

"such a banach of a bastard"

gonna use that

user228700

@JohnR: DID YOU, Sir, JUST GIVE AWAY A SPOILER FROM The Cursed Child?!

@Kaumudi.H I couldn't possibly comment

Calm down

5:15 PM

@Kaumudi.H I'm pretty sure he was just making a silly joke :P

@ACuriousMind damn, rumbled! :-)

user228700

._. CAN'T TRUST ANYBODY!!

@Kaumudi.H did you really take the comment seriously?

Let's talk about something else

JEE?

5:18 PM

I'm going to ban you

user228700

@JohnRennie :-( I did. I was having a pleasant conversation with a stranger in the comments section of a YouTube video (about H.P) one day when out of nowhere, they mentioned something from The Cursed Child and I was thoroughly confused and then they asked me to go away because they told me it was from that effing book and I told them that I hadn't read it yet!

In the next episode of The Story of Harry Potter Harry sits the JEE.

2

> I was having a pleasant conversation with a stranger in the comments section of a YouTube video

In which alternate universe did that happen?

What world does @Kaumudi.H live in

user228700

x'D It happens sometimes.

5:19 PM

@Kaumudi.H Really? When I said an unfortunate accident with a time turner and some vaseline you took that seriously? Girl you need to get out more :-)

What does that even mean

I encourage my audience to use their imagination

He wanted to go back in time to fix dry skin?

user228700

@JohnRennie :-( I thought that you were paraphrasing a plot-device from that book funnily.

@0celouvsky A worthy cause

Anonymous

5:21 PM

@JohnRennie theunrealtimes.com/2014/09/15/… :-D This is too funny!

@ACuriousMind if you figure out how to do it Unilever would like to know

user228700

Because see, something like that does really happen in The Cursed Child.

ACM is too theoretical to solve a fundamental issue like that

i probably won't read it then

@JohnRennie Well, I've got a few ideas. See, robots don't have skin...

Anonymous

5:23 PM

I am a robot with skin.

@Kaumudi.H Harry cures dry skin using petroleum jelly? Of course, vaseline does have ... other uses ...

@0celouvsky the time symmetric one also has $\delta (t+r)$

Brings us nicely back to Fifty Shades of Grey :-)

@JohnRennie I think it's better if we stop the elaboration at that point :P

man there are kids here

user228700

5:24 PM

@JohnRennie Right, but there is something to do with his parents and there is some time-travelling!

@JohnRennie like what?

This feel a bit like another "five-year Einstein" moment :P

It's very heavy and doesn't wash off easily

@0celouvsky you put it on car battery terminals to stop them corroding

How else would it be used

@JohnRennie interesting!

So Dumbledore was trying to fix his car?

@ACuriousMind hmm?

Anonymous

5:27 PM

@BalarkaSen You know, kids are very advanced these days.....:P

Unusual uses for vaseline - SFW.

Why would it be NSFW?

Hmm, I'd be careful feeding it to your dog though. It's likely to pass through the gut unchanged and the results can be messy.

How about my cat?

I wouldn't feed your cat to the dog either.

5:30 PM

The cat is too large for that.

user228700

@JohnR: Don't go just yet. Give me 5 minutes to complete this task of vital importance and hopefully show you the result.

I'd like to see you persuade a cat to eat vaseline :-) Dogs are so stupid they'll do anything you want, but a cat will tell to you to get stuffed (in cat language i.e. many scratches).

Challenge accepted.

I will give the cat two choices and I guarantee he will choose as I wish.

Post the pictures :-)

Anonymous

Na, na! Make a video. Pictures can be bogus

Anonymous

5:34 PM

I hope you don't end up with scratches on your face =D

Ok. I'll be home ~may 10

@blue he's declawed of course

(Front claws)

Anonymous

@0celouvsky :P Let's see what happens

user228700

@JohnR: This it taking far too long :-( I won't stand in the way of ur beer and book. I'll show it to you tomorrow if I succeed.

Aww

@Kaumudi.H OK, beer and armchair here I come. Talk to you tomorrow.

user228700

5:39 PM

Bye!

@JohnRennie better be reading topology

spoken like a true bourgeois lumpen intellectual

@BalarkaSen are you on r/latestagecapitalism

lol that's a thing

Yes

It's full of people who call other people "bourgeois" unironically

5:44 PM

sounds like my comrades

They're a very strange bunch

They'll post some ad and it gets thousands of up votes

I look at it and it's just an ad. They see some horrible oppression of the workers

Maybe I'm bourgeois :(

rofl

@BernardoMeurer Surely you are only interested in a digital camera you can run linux on.

a bourgeois endeavor

@BalarkaSen are you checking it out?

5:49 PM

yup

They're saying the United incident was Class Warfare

saw that.

@BalarkaSen they call them bougies

6:15 PM

any Mathematica'ers around?

user image

£$%^&^&^*(^&^%$%^!!!!!!!!!

goddamn finite precision

@BalarkaSen It's always strange that $S^1$ is flat

huh?

you mean with any metric? that boils down to classifying riemannian metrics on R upto isometry

which is, ez.

@BalarkaSen easy?

Well yeah, there's only one

I'm just saying it's strange the circle is "flat"

The proof is not hard

It follows from the antisymmetry of the curvature operator

Er...maybe not only one on R.

You can have complete and incomplete ones

6:30 PM

Sorry, I was busy with something else.

S^1 is not flat with any metric. Only from the one induced from R

@BalarkaSen think twice

huh? all 1d manifolds are flat

Curvature only has one component but it's antisymmetric

If it's the unit circle in a plane, that's got curvature, right? I'm confused

it has extrinsic curvature

but not intrinsic

6:32 PM

what is extrinsic curvature?

@BalarkaSen what you're talking about

It's like Gauss curvature for 1 dim, which is the same as Riemann curvature.

Curvature relative to an embedding

Gauss curvature of a surface is not the same as curvature of a curve though

Huh.

I guess I forgot curves.

I dunno Riemann curvature tensor yet anyway so you shouldn't tell me these.

@0celouvsky So the paper is here, if you want to see how rigorous it is

arxiv.org/abs/1704.02323

2

6:43 PM

@BalarkaSen ok

bejeesus, who put branes on the star board?

@BenNiehoff de Turck trick? You used Rocco flow?

...Ricci

Rocco flow is way funnier

but no, it turns out the DeTurck trick applies to things other than Ricci flow

@EmilioPisanty Better than brains on the star board. Mhhhhh, brains...

7:10 PM

@ACuriousMind what is "Witten' snores Theory

Witten's Morse theory

@0celouvsky projecteuclid.org/euclid.jdg/1214437492

@ACuriousMind I can google

oh my god

Please just ban me

I'm incapable of using the chat function

Rocco flow, Witten snores...jeeze

Witten snores is an excellent typo

considering Rocco is the name of a famous porn actor, I think Rocco flow is :P

Quantum AMERICCINO

7:20 PM

Hello everyone. I am trying to learn about the band gap problem. One of the discussion I came across is researchgate.net/post/Underestimation_of_Band_gap_by_DFT2

eww, ResearchGate :\

Quantum AMERICCINO

One of the posters, Bagayoko

states that the band gap is a result of a misunderstanding.

Which I find it odd. Would anyone like to share their opinions?

I don't have any opinions on band gaps

Quantum AMERICCINO

@BenNiehoff What's your opinion on ResearchGate?

they're annoying and deceptive

Quantum AMERICCINO

7:22 PM

The site or the posters?

the one positive thing I can say is that deleting my account seems to have actually worked

What's wrong with Research Gate?

the site

Quantum AMERICCINO

Hmm I see.

@0celouvsky everything, pretty much

ResearchGate is an attempt to create a social networking website for scientists

it serves no useful purpose

Quantum AMERICCINO

7:24 PM

The thing that I find strange is that the GW corrects the band gap. But if what Bagayoko says is true, shouldn't the band gap problem still persist in the GW method?

I haven't clicked your link, on the off-chance that maybe I was wrong about my account deletion being successful

Quantum AMERICCINO

dx.doi.org/10.1063/1.4903408

but I'm also not a condensed matter physicist, so I have nothing useful to say about band gaps

Quantum AMERICCINO

Is the journal article

@BenNiehoff ResearchGate is very very useful for obtaining papers e.g. from strange conferences that do not have an online access to their proceedings, so - some rare times, RG actually can help

7:25 PM

@Sanya in my experience, ResearchGate mostly lies about having ancient nearly-out-of-print papers available

they'll pretend you can get access to papers by joining

hmm, I have not used it in more than a handful of cases

but all it really does is sends the authors of the paper a message that you'd like to read their paper...*if* they happen to be members themselves

and usually I didn't get much - but sometimes I found a conference contribution online accessible for non-members

so it mostly doesn't work, and tries to rope you in on these false promises of papers

@BenNiehoff yep

7:27 PM

@BenNiehoff yeah well, whenever they do not have the pdf available, I stop looking there :D

Quantum AMERICCINO

I find the discussions sort of useful.

I didn't know there even were discussions, lol

not like I have any time for that

they did send me literally two spam emails a day

so I quit and deleted my account

managed to find the paper I wanted elsewhere, anyway

Quantum AMERICCINO

Long live sci-hub?

probably not

paper was from the 60s, I forget where I finally found it

might have even been Google Books

2 emails/day is ridiculous.

7:31 PM

I didn't actually need to read it, but just needed to know whether it said a particular thing

What do you do if you find a minor error in a paper? (such as a missing minus sign)
Do you email the author? or?

definitely email the author

is it an arXiv paper, or published?

Nature

sometimes things get fixed in the published paper that don't make it back into the arXiv version

lol

well then make absolutely sure first, and then email the author

I'm sure it's an error.
They've said some matrix is unitary but I checked and it wasn't. Then looked at the reference (it is a Review article) and there was a missing minus sign.

But the problem is that the article is corrected once before for another issue :)

7:37 PM

it happens sometimes

7:54 PM

Missing minus signs are a common typo.

8:33 PM

@skillpatrol It's OK for mathematicians and physicists to sometimes forget a minus sign, but for engineers....

A bridge collapsed a few days after it was built. The engineer, looking at the bridge, whispered to himself "sh#t, I think I forgot a minus sign in that equation...."

Anonymous

@Mostafa Reminds me of :P

Bernardo Meurer

I am now in Azores

The internet here is shit

God I feel like I'm back in 2005

Anonymous

8:49 PM

@BernardoMeurer Less than 50 kbps?

Bernardo Meurer

About 100

Oh god 360p looks horrible

Anonymous

Its 50 kbps here :P I finished my 1 GB data for the day

Bernardo Meurer

Oh wow

@BernardoMeurer I think people don't usually visit the Azores for their internet ;P

Anonymous

By the way, I've heard Azores is a famous tourist spot. Maybe you should be checking out the place rather than spending time on the Internet :P

Bernardo Meurer

8:50 PM

@ACuriousMind Well, I expected to continue to backup my music from here

not happening apparently

And I got shit to do too, I gotta up my whole MIPS CPU to my prof

SIGH

Fucking island

Why are you on the Azores if you're not gonna lie on the beach and sip cocktails?

Bernardo Meurer

It was free

I have exams next week though

Some of my friends are going on a cruise next week

Apparently because travelling across Slovakia wasn't good enough

Anonymous

@JaimeGallego To?

Bernardo Meurer

Slovakia is for suckers

Slovenia is the real deal

8:53 PM

@blue To France and Italy

Bernardo Meurer

@JaimeGallego Jože Pužen!

?

Bernardo Meurer

Just remember that, you will need it when you inevitably end up in Slovenia

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