The h Bar

@heather About what?

heather

lie algebras

i'm getting some help in the math chat =)

12:47 AM

@0ßelö7 Still need help?

I need a break from intellectual property rights

@Bernardo Did you look at the Fader article on Fantano?

@BalarkaSen Nope, link?

This is the most hilarious shit I have ever seen

thefader.com/2017/10/03/…

The news articles... need to stop.

They are analyzing the "Hopsin is the greatest rapper" video as white supremacist.

Oh my god

This is hilarious

What the fuck

Right???

12:53 AM

> In September, PewDiePie, the most subscribed vlogger on YouTube, used the n-word during a videogame stream and set the YouTuber community on fire (although it wasn’t a huge surprise to anyone familiar with his recent work.)

Lol

You gotta be shitting me

You don't know that?

@BernardoMeurer oh wow I just fell asleep sorry

@BalarkaSen I do

Oh ok

it's just ridiculous that people tagged Felix as a nazi for those videos

12:55 AM

Oh of course

I mean, his last scandal was well deserved

That's damn silly

For sure, I don't support the last thing he did

But that's no reason to mark him off as racist

And hype that up to Nazi

He did do something that is not socially-acceptable at all, and with no excuses towards it. He was an idiot and a racist (in that instance)

But the previous case was just bona-fide parody

Right, that's my standpoint too

This article...

It's like people can't get memes or sarcasm

I mean, it's not even like they are arguing from the POV of ``his jokes went to far'' Which is a valid, albeit arguable, point. It's just like they don't get it's a joke at all

12:58 AM

apparently not... it's a few miles from this that the meme channels on youtube gets hit

> I won’t try to explain the plot — something about summoning “black meme magic” by burning a copy of Death Grips’s album Exmilitary as an offering to Pepe the Frog

I am dying

Oh my god hahahahaha

That is just perfect

Like, they argue some half assed shit like even though he explained why he doesn't say the n-word on the main channel, he hates on the black community by hating on rappers like J Cole, XXXTentacion and Hopsin

@Bernardo Masterpiece, isn't it?

Now they are saying he says the n-word because on his videos memes with it are displayed

What is going on

Oh, nice Sargon cameo in the article

He's dope

jeez

I sat down to think about thgis problem and I just passed out

somehow it's still today

1:31 AM

@0ßelö7 @ACuriousMind I need word halp

word as in English words, not as in Malwaresoft Word

what is it

@BernardoMeurer let's do the linux tomorrow. I'll be on the cluster to do homework

don't want to reboot now

Alright

In Copyright you have a battle between users and X

Where X would be like creators

But that's not a good enough word I think

@BernardoMeurer creators isn't a good word?

I don't think so

"content creators" is the standard word (cf. h3h3 lawsuit vids, I think)

1:40 AM

Because copyright holder $\neq$ creator

then say copyright holder

I can create and not own the copyright

But that's not as nice, it's a composite term. It's what I currently have

It damages the juxtaposition effect with the word "users"

I think it's fine. what do your sources say?

0

Q: Word for Copyright holder

I'm writing an essay on Intellectual Property Rights in the Digital Age, and I have the following sentence: DRM is an instrument to protect Copyright, and therefore it should be implemented in such way that it respects the rights on users and [X] alike. Here, [X] should be a word for the co...

One of my sources uses owners

Which is good I guess?

I asked anyway

Will use owners for the time being

Q: Does convergence in every $L^p$ imply convergence in $L^\infty$?

1:58 AM

0

Consider a sequence of functions $(f_n)$ on a probability space $(X,\mu)$ such that (i) $f_n \to f$ in $L^p$ for every $p\in [1,\infty)$ (ii) $f,f_1,f_2,\cdots\in L^\infty$ and they are uniformly bounded in $L^\infty$ by $\Lambda\in [0,\infty)$. Does then $f_n\to f$ in $L^\infty$?

real-analysis probability

@0ßelö7 Today I scored 95 in a paper and didn't get A+

Is this normal?

(95/100)

wtf

oh, A+

no such thing

you got memed

This class has it

Huh?

my university has a no A+ policy

That's awesome

2:33 AM

@BalarkaSen It's not true. The counterexample is trivial. Huh.

@BalarkaSen @ACuriousMind Do you guys want to proof read my paper on DRM and intellectual property rights?

@BernardoMeurer you don't ask me? wtf

@0ßelö7 rekt

@Bernardo Yeah I would

@0ßelö7 My idea was that you pretty much despised philosophy and didn't care about DRM or Copyright?

Am I wrong?

...

how did you conclude that?

2:39 AM

@BalarkaSen Dope, I'll ping you when it's done I'm almost done with sourcing and outlining

@0ßelö7 Through extensive conversation?

Excellent, thanks!

I'm mostly making an argument that according to Locke's Two Treatises of Government Copyright has a duty towards the users as well as the owners, and that DRM damages users and is therefore against, and not for, copyright as intended. That's a TL;DR

yikes

it may change though, since I haven't actually written it. I plan on using, well, Locke and Hegel (Philosophy of Right) for pure arguments (suggestions appreciated), and then for arguing that DRM damages users there's a plethora of available sources (Currently I plan on using articles written by Librarians bashing DRM, and things of the like). For conclusion I plan on heavily bringing in ACM (not our ACM, but Association for Computer Machinery)'s "DRM and Public Policy".

The Hegelian point is the hardest to make I think, because I have to unwind the spaghetti, but I think he has some points on property being fundamentally related to a creator's personality that help me argue how intellectual property is no different than material from a rights POV

I also need to be careful to scrape God from Locke's arguments to make the argumentation accessible

lmao

"God hates DRM"

@BalarkaSen Did you see the MSE doubt above?

2:47 AM

According to Locke (s)he does

@BernardoMeurer Proof?

@0ßelö7 Wait for essay

That's pretty much part of what I try to show

That Jesus hates DRM just as much as Stallman

we watched a video by stallman

It will confuse Republicans so much they might just combust

my fortran professor sperged out

stallman is crazy

computer people really are the worst fanboys

@BernardoMeurer I'm an atheist Republican. So is everyone in my family.

We also love copyright

2:53 AM

So do I

I just hate DRM

hmmmmmmmm

I will have to read your paper to see why

And I was referring to the Christian-conservative Republican bench, which also loves DRM b/c MPAA RIAA lobby

those people are ironically Christian

like Kevin

@0ßelö7 chat.stackexchange.com/transcript/message/40365307#40365307

Locke's whole argument is based on God, so it follows that God hates DRM

Alright, time to go home!

DanielSank

3:45 AM

@BernardoMeurer hi

5:08 AM

@0ßelö7 Are you around?

yes

What's a monodromy map?

something that depends on how many times you do a loop

wat

Monodromy

In mathematics, monodromy is the study of how objects from mathematical analysis, algebraic topology, algebraic geometry and differential geometry behave as they 'run round' a singularity. As the name implies, the fundamental meaning of monodromy comes from 'running round singly'. It is closely associated with covering maps and their degeneration into ramification; the aspect giving rise to monodromy phenomena is that certain functions we may wish to define fail to be single-valued as we 'run round' a path encircling a singularity. The failure of monodromy can be measured by defining a monodromy...

5:19 AM

I already saw the Wikipedia article

I didn't quite get it

Which is why I'm asking you

Then you need to ask a specific question

What is a Monodromy map

Walk me through it

Without more context, no clue.

ams.org/notices/200311/fea-its.pdf

First paragraph

why on earth are you reading this

5:21 AM

Because I got interested

And I am bored

It's likely defined later in the paper...

It's a review paper, the intro isn't supposed to make sense if you're completely new

@0ßelö7 What's a good intro paper then?

Maybe that one. I dunno, haven't read it.

You shouldn't expect to understand the introduction in a review paper.

Alrighty then

I'll keep going

6:13 AM

I was just reading about Walter Lewin

It is sad what happened to him

insidehighered.com/news/2015/01/23/…

Just so nobody says I am a horrible person, let me say i feel saddened about what happened to the girl too

I was trying to find some special relativity videos to watch and now when i see his face i have to contemplate the situation lol but not so lol

At any rate watching special relativity related videos and chil_n

ping me if you are bored

@BernardoMeurer how are you. . . how is your coding project going?

Heya

I'm alright

Setting up a nextcloud server on a raspberry pi right now

Running mainline kernel :)

awesome

It kind of works?

Although only on ARMv7, on AARCH64 I cannot get the display to work

Nice nice, I am just doing some node js stuff over here. hehe

You seem to be doing some pretty hardcore stuff there

Are you writing in C

?

Well, setting up an HTTP server is hardly hardcore

Although, modifying kernel DTS' to get an SPI display to work is hardcore I suppose

For the Display, yes

6:25 AM

Are you doing this for fun or for a client or school?

Hey we should follow each other on github

Well it's a bit for fun

But partially is because I need a cloud server

and I'm tired of paying Google drive

may be i can do a pull request sometime hehe

so instead I'm building my own with an RPi, an SPI display and an old external drive

I'll just leave it running in my closet

@JohnRennie Do you know how to set up DNS and stuff?

@Cows What's your GH?

If you know Python, my project beautysh needs some PRs

it is kevintah

static or dynamic

my GH is kevintah

@BernardoMeurer On Linux?

6:28 AM

@JohnRennie oh hey there :D

@JohnRennie Just in general

I don't do web, so I just want a Guru to tell me what I should watch out for

e.g. if I were to explain someone about Linux I'd warn "Don't touch GRUB"

you must be able to do it in terminal easily no? also I think it is more of a devops thing

DNS servers are about as simple as it gets. Install the server and write the config file. Restart the server then swear when it finds an error in the config file and crashes :-)

hehe

@JohnRennie You should run my NextCloud instance for me :P

That way I don't have to secure my own stuff

6:31 AM

@BernardoMeurer following you now

@Cows Dope, I followed you too

@BernardoMeurer btw most of my GH is is silliness lolz, except the most recent project

I am doing Full stack for some client

for an ML app

MEAN stack

so far only have the UI

Hm, web stuff

You charge $80 an hour on LAMP stack?

was going to drop angular all the way but switch to bootstrap/modnizr

Gah-lee

I need to start charging more

6:33 AM

used to lol

I charge that plus change for MEAN stack

I mostly just spin up api's in laravel and dom my way out with angular

1.xx

sometimes 2

I don't get these stacks, why would anyone use Mongo as opposed to Postgre

Postgre is fast AF

Now I go full blown MVC with mean

@JohnRennie Are you looking at what NextCloud is? :P

I use mogodb and couch db, they offer easily scalable solutions,

I did a quick Google to see what NextCloud is.

6:35 AM

@Cows Still, not nearly as scalable as Postgre or MariaDB/MySQL I'm sure

Is Mongo NOSQL?

NOSQL is hipster stuff

IMHO

While I can see it's fun to set this stuff up yourself I would just use Google Drive or the MS equivalent.

@BernardoMeurer Maria and SQL are alright

I see cs chat is back

@JohnRennie I gotta pay a fee each month though :/

I don't want to pay like five bucks a month for google

It's worth it

6:36 AM

@Cows SQL is not a DB, what do you mean?

@JohnRennie Why?

I doubt my closet raspberry pi consumes that much power in a month

sry mysql

or oracle sql or any of its . . like

The point of money is that you use it to save you hassle. You don't make your own clothes, you pay money to get them ready made.

MySQL is malware anyway, it's MariaDB or Postgre IMO

And Postgre is better at the time IIRC

Real men only use CSV

6:37 AM

Likewise you don't roll your own cloud storage you pay money to have someone else do it for you.

what isn't malware

The future is creating Dapps with solidity and etherium

turing complete blockchains

@JohnRennie Bah

NextCloud is fully OpenSource :)

@Slereah good paper. pretty unintelligible. What about it?

@0ßelö7 Free Software, except some

6:38 AM

@JohnRennie was that an analogy for our relationship with the cloud lol

Some free software is also malware

I imagine designs for making clothes are open source as well

@0ßelö7 the memes

@JohnRennie Really? I highly doubt that

I'd have to reverse engineer the cutting patterns

I'm basically dressed in machine language cloth

Holy fuck

@BernardoMeurer: perhaps you think I'm just being provocative but honestly I'm not. Remember that I work in a commercial environment. Companies pay me to do stuff because in the long run it's better than them trying to do it themselves.

6:41 AM

@JohnRennie What if I pay you to roll me NextCloud

Except I pay you in love

@Slereah when projects become big and complicated , one begins to understand the need for all the diverse tools out there

:P

@BernardoMeurer do you have a personal server?

*computer server lol

It's good fun setting up your own stuff, and that's an excellent reason for doing it. But if you want something that works and having fun isn't your main objective then paying someone else to do it is a strategy you need to consider.

My biggest issue currently is that ARMv7 is 32-bit, and I have many files larger than 4GB, which will cause issues with PHP on the architecture

AARCH64 support is complex though, and I cannot get my stuff to work

Mostly because uboot wont load my device trees

6:43 AM

@BernardoMeurer cause issue on php architecture?

@Cows I have a few servers on my LAN, this is the first one I'm thinking of opening to the world

@Cows No. Cause issues with PHP on the architecture (ARMv7)

Oh cool. Ah . . . i see

I have the one server I use as a workstation hehe

one of those old beasts with xeon processors

@JohnRennie what is your GH

@Cows GH?

github

:)

Hmm

How do I get uboot to load my DTBOs?

6:56 AM

@Cows here, but I don't have much stuff of my own. I mostly use GitHub to work on Kodi.

Can a nuclear physicist help me on this

What is the structure of batmanium

XZ is awesome, goddamn

@JohnRennie awesome

@JohnRennie following you on GH now. My GH is kevintah

@Cows there is little point in following me on GitHub :-)

@JohnRennie what streaming protocols do you guys use?

7:03 AM

I don't do much Kodi work these days so my GitHub account is mostly inactive.

I did something back in the day and used RTMP for it

I remember the days of long polling and so forth hehe

Kodi uses FFMPEG for all the media handling so it supports all the protocols that FFMPEG supports, which is pretty much everything.

these days there are so many added protocols to the tcp/ip and udp

NB Kodi isn't a server app, just a client.

oh i see

makes sense

7:05 AM

kodi.tv/about

Do you guys use any frameworks? Any emphasis on any patterns? etc . .

what's it like?

the code i.e?

what part of the code do you contribute to?

or do you just do issues?

just curious hehe

@JohnRennie still there?

@karthikeyan hey dude

Hi

how are you?

Good. You?

pretty well, decided to socialize a bit today :D

7:22 AM

Does the Particle Data Group lists annihilation processes?

I can only find decay

Hello @johnrennie

@Fawad hey

Hi @cows

@Fawad how are you

@Slereah i don't know have only seen the back of the book lol

@Cows I am good. Do I know you?

How we got cos theta ??

From figure can someone explain me.

7:27 AM

@Fawad no I was just being cordial and friendly though :D

@Cows working ...

@Cows humanity still exist i see. Nice

@JohnRennie oh did not know :)

@Fawad yup

Hmm

Anonymous

8:02 AM

@Fawad $d\mathbf{l}$ and $\mathbf{r}$ are perpendicular.

Anonymous

Also, $d\mathbf{B}$ and $\mathbf{r}$ are perpendicular.

@Blue yes. And $\theta$ is angle between $d*B*$ and X-axis

Anonymous

@Fawad Right

Anonymous

So what's the problem?

How $\cos\theta=\dfrac{R}{{\left(x^2+R^2\right)}^{\dfrac32}}$

Anonymous

8:14 AM

@Fawad Well, that's incorrect. Look at your book again. It will be 1/2 there. Not 3/2.

@Blue yes my mistake. But how?

Anonymous

Angle between $\mathbf{r}$ and $x$ is $\pi/2-\theta$

Anonymous

$r=\sqrt{R^2+x^2}$

Let me see it

Got your point @blue. Thanks :)

user129412

8:41 AM

Quick simple conceptual question.. Say I have an SNS junction, zero bias. An electron (energy smaller than SC gap) moves towards the S part, and gets Andreev reflected: a cooper pair nucleates in the SC, and a hole moves in the opposite direction of the N part. Net effect is +2 charge in N, -2 in SC. But now this hole arrives at the other SC. What happens here? If I remember my lectures correctly, the hole now also gets andreev reflected and becomes an electron. So -2 charge.

Does that mean you destroy a cooper pair in the other SC for +2 charge? Because I've seen the texts be a little ambiguous on this, or well, they don't state this. Wikipedia says that through time-reversal symmetry, the process with an incident electron will also work with an incident hole, but I don't see how that works in terms of charge.

Phase

Is the only way to see a deleted post to be above 10k rep?

I'm gonna go ahead and guess that a request for a link to an archived copy of the question from a 10k+ rep user is frowned upon

10:05 AM

@Phase Yes, unless it is your own.

@Phase Depends on why you're asking.

10:27 AM

Hey @ACuriousMind Regarding the question oyou just flagged:physics.stackexchange.com/questions/361127/…

I tried to search everywhere possible but it's not present in any of my reference books(I searched multiple books), nor google proves to be of any help, BTW,it's not given as homework excerise to me, I am doing this just for fun , Secondly I am also not asking for spoon-feeding, I posted here my solution which shows I am putting effort but since answer is

not right I am asking you what I am overlooking, anyy concept which I might not be knowing or applying in a wrongful way, if then why it's so and what should be correct way?

Or maybe I am not looking at the problem from right perspective and therby missing some important nuances

@Xasel I know that that's what you're asking, but it's still a homework-like/check-my-work question and therefore off-topic. That you show effort is good, but effort alone does not make such questions on-topic for us.

Nor does the answer being potentially difficult to find, for that matter.

Difficult is a relative term @ACuriousMind , unifying gravity with QM may be difficult for us but it maybe homework-exercise in some alien's physics textbook

Hence I appeal, if my question is offtopic then there are plenty of good-quality questions here of similar nature,

the thing may not be diifcicult for those who answer but certainly it intrigues one who is trying to find the answer

(Not just asking pre-made sppoon feed answer,

If the problem is not difficult(certainly not for a PHd Physicist) but maybe difficult for a high-school student like myself

can you give me link to solution where it disccuss how should we approach the problem

@Xasel You may have misunderstood me - I meant that it is not relevant how difficult the question is. Even if it's difficult for a PhD physicist to solve it, questions that just ask for how to do a specific computation or solve a specific exercise are off-topic.

10:47 AM

I" how to do a specific computation or solve a specific exercise are off-topic" - I don't have data but I certainly know that @Qmechanic can affirm my statement that quite a lot of good-quality questions here on this site are indirectly in such disguise , they don't ask how they should computationally solve it( read: Please solve this for me) but ask what they might be doingqwrong or how shall they approach a problem , maybe they might overlooking some concept or not knowing it of it,

Knowing Concept and how to apply that concept to a particular situation , both fall in the domain of conceptual development /conceptual questions

We humans know quite a physics QM ,GR,etc.. conceptual things yeah.. so do some aliens out there but applying those concepts to unify QM/GR maybe 'conceptual on-topic research are problem for us' which posses certain fundamental question to ponder upon

But same can be a already solved question for aliens who can argue, oh that's a computaion/exercis-problem
It's good that humans have showed effort in the last 20th century but it doesn't mean that it should be on topic-questions
for AlienSuperKnowledgeExchange, it's off-topic

If you really want to discuss the homework policy, have a look at the meta discussions about it and if you really have a point that has not already been made there repeatedly, you can ask a new question and see what the users think. I would advise against using hypothetical aliens in your argument, though.

So far, you seem to be saying 1. showing effort should be enough to be on-topic and 2. comparatively difficult questions should be exempt. Both of these points are already discussed (and largely rejected) on meta see e.g. this answer (every word in the first sentence is a link to a different homework discussion).

11:11 AM

Just do your homework

KIDS THESE DAYS

Oh lets focus on some good questions, ah a golden one just posted: "How can two universe used as logic circuits can communicate their states?", ahhh that's an on-topic question , it preserves Academic integrity and interesting(surely for both humans and aliens likewise ;P)
@Slereah: Just do your homework humans, humans these centuries !

Well lets keep this hypotheitical aliens aside, you can really help me, II am not asking you to give full solution

I m just asking you to show me where I am going wrongs and why that's wrong(Cause I couldn't find thinsg wrong,but since answer is wrong sure…

@ACuriousMind: I respect you a lot, please don't take this personally

@Xasel: as a general rule we're happy to discuss questions in the chat that would be deemed off topic in the main site. Assuming of course that someone who knows the answer to the question is around.

But harping on about a site policy that isn't going to be changed is not a great way to make chat room members sympathetic.

:(

well I found something similar, I just wanted to raise my pint, rest of the decision lies on the discretion of community/mod authorities(who ever is s head),o

Hereby, I rest my case

physics.stackexchange.com/questions/348692/… --> This just looks similar, know I am going to see If I can draw parallels here

and find my fault

Emilio Pisanty

Hey @ACuriousMind & other mods, is there a chance to get a screenshot of the comments on this one? physics.stackexchange.com/questions/266216/…

also: bejesus, that makes eight non-answers on that question

@ACuriousMind ::grin::

11:30 AM

@Xasel I'm not taking it personally, and I'd also like ot emphasize that your question is not bad - but questions asking us where the asker went wrong in attempting to solve a particular exercise are off-topic as check-my-work questions, for the reasons detailed in the meta post about that.

As for your question, you should reconsider why you're integrating from r (what is r, by whe way? You use it both as an integration limit and as the integration variable, these should be named differently) to infinity - if you choose some other arbitrary point $r_1$ to which to integrate, the infinity disappears, indicating that you just can't put the zero of potential to infinity in this case.

@EmilioPisanty Moved them to a chat instead, if that's fine with you.

11:41 AM

@ACuriousMind: Sorry for variable mashup r specifies distance from the axis of solid cylinder whereas I want to find potential at r_1 .Since this solid Cylinder is not infinite just like infinite line of charge in similar question link I posted above, we can put V(infty)= 0 . SO we integrate from inifnity to that point r_1, but doing so result in ugly infinity

log(r1) - log(ininity) = -infinity :(

@Xasel If your solid cylinder is not infinite, then your expression for the electric field is wrong.

Your electric field is the field of an infinitely long solid charged cylinder.

????, well I calculated expression using Gauss Law as stated in my tetxbook, enclosing the cylinder in a gaussian surface which on furthur calculation lead to this formula ?

and knowhere it states that solid cylinder is infinite

OMG, I found the fault

If your cylinder is finite, the field would have to depend not only on the distance $r$ from the axis of the cylinder, but also on the "height" $h$.

yeah, my book doesn't account for that, the height of the cylinder the upper and lower base plates ;( ...it just says Electric field of a long solid cylinder....anyway now I am going to work on this problem from ground-up , thank you very much @ACuriousMind for putting up with me and giving your precious time. Have a good ahead :)

May you be the king who unites GR and QM under his flag ;)