The h Bar

DanielSank

00:06

I think @heather needs to learn classical Hamiltonian mechanics first.

Just my opinion.

ACuriousMind

Hey, you started this :P

But I do agree that knowing classical Hamiltonian mechanics makes QM a lot less "weird".

heather

@DanielSank, okay, so: 1. calculus 2. classical mechanics 3. quantum mechanics 4. QED 5. cQED 6. come back to what I'm doing?

DanielSank

@heather I would say 1 through 3 yes, and then re-evaluate.

ACuriousMind

Your eagerness is admirable, adorable, and a little frightening :D

heather

@ACuriousMind, frightening how? =P

DanielSank

00:08

@heather can you solve basic differential equations?

@heather He means we all feel a bit humbled.

Your enthusiasm and dedication/hard work is admirable.

heather

@DanielSank, no, not yet

DanielSank

@heather Ok, just wondering. To calculus with you!

heather

(::whips out Apostol's calculus::)

DanielSank

@heather let's do one simple little example though.

You know $F = ma$.

Let's think about a particle moving around with some potential energy $U(x)$.

heather

okay

DanielSank

00:11

You know that $F(x) = - (dU/dx)(x)$, right?

heather

now I do

DanielSank

wut?

heather

I didn't know that equation until you just said it

DanielSank

Oh, yeah, ok well, if you have potential energy, force is minus the derivative.

Hmmmm

heather

okay

John P

00:13

Hello guys, would someone please help me get some basic, vague understanding behind the way an electric circuit works?

DanielSank

Ok, do you know the kinetic energy of a particle as a function of it's speed or momentum?

heather

sorry, nope

ACuriousMind

@JohnP Current goes 'round, does stuff on the way. (You'll have to be a bit more specific what you want to know)

DanielSank

ok ok

Let's get back to this after you have your first physics course.

Anonymous

@JohnP Yeah. Just ask the question... BTW it is a big topic and you need to specify where you are facing a problem

heather

00:15

@DanielSank, okay

first question about this calculus book. It says that if we have a region of the plane

John P

Alright, so first - what exactly happens on a "microscopic" level at the part of the side of a battery, which has "too many" electrons?

heather

then when we assign an area to it we can also associate a number with a set $S$ in the plane.

what does that mean "associate a number with a set $S$ in the plane"?

HDE 226868

@DanielSank Out of curiosity, were you going to try to show Newton's second law based on the Hamiltonian?

DanielSank

@HDE226868 No

Well, sort of.

heather

then, it says that you can have a function $a$ (an area function) that assigns a real number $a(S)$ (the area of $S$) to each set $S$ in some given collection of sets. At this point, I'm completely lost.

I'd be grateful if someone could explain.

Anonymous

00:17

@JohnP It does'nt have excess electrons. Electrons are usually produced in cells by various methods..see qrg.northwestern.edu/projects/vss/docs/power/…

DanielSank

@heather A "set" is a collection of things.

heather

sure.

DanielSank

If you draw a region in a plane, you have picked a set, i.e. the set of points in that region.

heather

okay, so the first part makes sense.

DanielSank

If you invent a notion of "area" then you have associated a number, i.e. the area, to that set.

ACuriousMind

00:18

@S007 What? Electrons are almost never "produced", they are just shoved around.

heather

oh...

okay that makes sense.

DanielSank

Then you can declare a function $a$, which takes sets in the plane as inputs, and gives their area as outputs.

def a(region_in_plane):
    return area_of(region_in_plane)

Anonymous

@ACuriousMind Yeah, that was a language problem, but free electrons are produced by ionic reactions..

Anonymous

in electrochemical cells

Anonymous

you are right

heather

00:20

I think there needs to be a lightbulb emoticon specifically for when I chat with people here =D

John P

The article you linked, says "The chemical reactions in the battery causes a build up of electrons at the anode." - would you explain how it's different from what I wrote?

heather

@DanielSank, thank you!

DanielSank

@heather sure

You'll find that it's very useful to think about mathematical functions in terms of what their input and output types are.

This is also true in programming.

It's no accident that we use the word "function" in math and in software.

Anonymous

@JohnP Yes, an electron build up is there after a reaction, but that doesn't mean there are excess electrons initially.

John P

So if the battery is not in a circuit, then there aren't excessively many electrons?

(at the anode)

Anonymous

00:24

@JohnP No, there is just transfer of electrons via ionic reactions in electrochemical cells

John P

Alright, how does the electron flow start, when you make a circuit?

Anonymous

@JohnP It is big topic. I would advise you to get a introductory idea first. See youtube.com/watch?v=IV4IUsholjg

John P

Alright, thanks I'll be back in 10 mins

Anonymous

@JohnP Sure, it is basically a redox reaction

Obliv

How are permanent magnets formed again? I vaguely remember something about the orientation of the atoms in the material.

Is there a current in the material?

ACuriousMind

00:35

@JohnP There are "excessively many electrons", but they can't get to the other side because the electrolyte doesn't transport free electrons. Closing the circuit from outside allows the electrons to go to the other side.

@Obliv Sort-of-but-not-really. Things with spin and charge have a magnetic moment - if the spins of the outer single electrons (the inner ones are all paired spin up/spin down so produce (almost) no field) in a material all align, they can produce a macroscopic magnetic field.

In a Bohr-like model, one could imagine the electrons as a circular current around the nucleus, but that's totally bogus.

Obliv

What would make the material align? @acuriousmind

Anonymous

@Obliv While Permanent magnets too get magnetized the same way as electromagnets, they are made of special material which have very high retentivity which enable them to retain magnetism long after the magnetizing field is removed.

Obliv

how do electromagnets form @s007 ?

Anonymous

Electromagnet

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet. The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling...

ACuriousMind

@Obliv That's...difficult to explain. See, for a start, the explanation of ferromagnetism on Wiki. Some materials just tend to have neighbouring spins align, and then applying an outer magnetic field makes them all align, and then it's "too difficult" for a single spin to flip again so the new magnetized configuration is stable

@S007 What?

The mechanism of permanent magnets and electromagnets is totally different.

Permament magnetism is due to the dipole moment of unpaired electrons and complicated statistical interactions leading to the formation of Weiß domains. Electromagnetism is a straightforward result of sending a macroscopic current through a wire and Maxwell's equations.

Anonymous

00:45

@ACuriousMind Are you talking about naturally obtained permanent magnets ? I was talking about artificially made permanent magnets using magnetic materials. I agree that some materials naturally have a ferromagnetic property due to configuration.

Anonymous

Both electromagnets and permanent magnets need magnetic materials to prepare, there are just some differences in retentivity and coercivity

Obliv

I bet the 19th century physicists were very frustrated in trying to explain ferromagnetism. Was the idea of magnetic charge ever tried/introduced, do you know @acuriousmind ?

Before Millikan and the discovery of electrons

ACuriousMind

@S007 I still don't know what you're talking about. When I articially make a permanent magnet, I take a ferromagnetic material and expose it to a strong and preferably uniform magnetic field. If I want to have an electromagnetic I just take any coiled wire and send a current through it. You don't need any "magnetic material" to make an electromagnetic (though a ferromagnetic core makes it much stronger)

@Obliv Sure, people have long searched for "magnetic monopoles", and they are theoretically perfectly possible (if you modify Maxwell's equation a bit). However, there don't seem to be any.

Anonymous

@ACuriousMind Exactly, that is what I am saying. Ferromagnetic materials are needed for strong electromagnets. Like we use a soft core

ACuriousMind

That a north/south two sided magnet didn't break into a north and a south piece but two smaller north/south magnetis was something physicists could observe perfectly well.

@S007 Okay, but why are you saying that? What has making an electromagnet strong with a ferromagnetic core to do with Obliv's questions about how magnetism works?

I could also make it strong by sending much more current through it. There's nothing necessary about the core, it's just practical.

Sir Cumference

00:52

Question

Anonymous

@ACuriousMind I just wanted to say that permanent magnets can be produced in the same way, by using a strong current and therby a strong magnetic field, which helps in magnetizing it . Nowadays we do not use naturally obtained permanent magnets as they are very weak (usually)

user218912

@Obliv yo

Sir Cumference

Can anyone tell me the degenerate radius of a gravitationally held object as a function of mass?

ACuriousMind

@SirCumference Typing "degenerate radius" into Google gives me a straightfoward answer to that :P

Sir Cumference

@ACuriousMind Yeah, just realized...

John P

00:56

Oh man, I'm pretty sure I've just gone down the rabbit hole of having to look up a lot of stuff, to get to understand my initial question hah.

Anonymous

@JohnP Well, so did you get it ?

John P

Well no, because now I'm refreshing on all the stuff. Didn't know what a redox reaction is, so I started googling that. Don't know what a covalent bond is, difference to ionic bond etc. Lots of stuff to look up.

Obliv

@acuriousmind Why is it that when you spread iron filings about a bar magnet, there exist no filings in b/t the apparent 'field lines'? Also, if you had no friction on a surface with a bar magnet and spread the iron filings, would they maintain their shape of the magnetic field lines as they did before?

@obe guten tag

user218912

@Obliv i'm gonna do a refresher through all of tong's notes want to do it with me?

Obliv

@obe when will you be doing that?

also, why? I thought you were a math student now ;)

user218912

01:03

physics is too attractive to me

user218912

i'll do both :p

user218912

@Obliv i'm doing it right now

user218912

ugh i have so much to learn in math too

ACuriousMind

@Obliv Because iron is ferromagnetic so the spins are aligned and each filing has a macroscopic magnetic dipole moment, and on everything with a magnetic dipole moment the magnetic field exerts a force/torque unless the moment is parallel to the field. Friction has nothing to do with this

Obliv

@obe I don't know what $\nabla \times E$ is yet but that's pretty much the last thing I need to understand before I can start it I think. Was supposed to do gradient theorem & other stuff today but I got so caught up with 19th century EM.. it's just too captivating for me.

user218912

01:06

@Obliv you need to know what div, grad and curl are and also the 3 integral theorems (green's, stokes, divergence)

user218912

then you're all set

Obliv

@acuriousmind does this mean there is a force/torque acting on the material, itself, if the material is not parallel to the field lines?

is this measurable?

ACuriousMind

@Obliv Yes.

@Obliv Obviously - the measurement is that the filings align!

Obliv

Nvm. I imagine the magnetic field is 3D so it would of course affect a 3D volume around the magnet.

@obe I'm afraid I can't join you with your review right away then. Mind if I ask you questions later, when I do start referring to the notes, though?

I have to drive home now. Danke ACM for your guidance as always :)

user218912

@Obliv yes I am doing a full set of notes based off his notes so that I can remember it forever.

Sir Cumference

01:23

@obe Want to hear a joke?

Anonymous

@SirCumference you may tell me instead :-P

Sir Cumference

@S007 Forgot it... :/

Anonymous

@SirCumference Good joke :-D

2

Sir Cumference

@S007 Got one

Just thought it up

What did the chemist say to the atom?

I got my ion you.

Anonymous

@SirCumference XD what a joke... :-P

heather

01:33

lol

Anonymous

I didn't laugh XD

Sir Cumference

@S007 ;(

Fine, lemme think of a better one...

Hm...

Ok, why did the photon want to lose weight?

Anonymous

It wanted to travel light

Sir Cumference

@S007 Dammit! I thought I was creative

Wait, photons don't have mass, so...

Anonymous

damn, buddy. you are copying internet jokes :-D...lol

Sir Cumference

01:35

@S007 Nah, I swear that was off the top of my head

Anonymous

@SirCumference Do you understand Hindi ?

Sir Cumference

@S007 Huh?

What brought that up?

Anonymous

Oh leave it...I knew a couple of good jokes in hindi :-P

Sir Cumference

@S007 :/

Ok, lemme think

Here's one I heard on astronomy SE

Anonymous

@SirCumference where are you from ? :)

Sir Cumference

01:37

A neutrino walks into a bar...and keeps on going...

@S007 'Murica

Anonymous

Murica...merkan ? Hehe :-d

Sir Cumference

(America, not sure if you get the meme)

Hi @rob

Anonymous

You merken ? I get it man :-D

Sir Cumference

Have any jokes to share?

Oh! Came up with one

@S007 Why was Newton so smart?

He New tons of stuff

hurr hurr hurr

...Alright, I have to get back to work

Anonymous

That was new :-D ..... okay see you around :)

rob

01:46

@Secret With regard to physics.stackexchange.com/q/289172/44126: By "second anapole moment" I did mean two opposing anapoles. A physical implementation of an anapole current, like the one I developed in response to your question, would have a broken rotational symmetry, even though the "pure" anapole moment doesn't.

I didn't elaborate further in my answer because I was concerned about getting lost in the weeds.

Evening, all

Anonymous

Does magnetic flux change when a iron rod is inserted into a current carrying solenoid ? Can someone answer please ?

Anonymous

I initially thought flux = B.A where B=inA, and as current does not change flux should not change, but I am not sure

Anonymous

@ACuriousMind Any ideas ? :-P

Sir Cumference

Question

Is there a limit to how massive an electrically neutral object can be before it becomes a black hole? Say it's composed of hydrogen

Anonymous

Sorry, I meant B=mu n I

Anonymous

01:57

@SirCumference yes

Sir Cumference

@S007 Which is?

Anonymous

Chandrashekar Limit if I remember correctly

Sir Cumference

@S007 No

Anonymous

Just google the name

Sir Cumference

Chandrasekhar limit is for collapsing white dwarfs

Beyond the Chandrasekhar limit they become neutron stars or explode as supernovae

@S007 You thinking of the Tolman-Oppenheimer-Volkoff limit?

Anonymous

02:00

that is for neutron stars isn't it ?

Anonymous

that is, the maximum mass a neutron star can have before it collapses

Sir Cumference

@S007 Yeah

I'm talking about hydrogen objects

Anonymous

yes beyond that it can form black holes

Sir Cumference

What?

I'm asking if there's a maximum mass for a bunch of hydrogen before it becomes a black hole?

Anonymous

@SirCumference Sorry, I am not an expert on the this topic....I will not be able to answer

Sir Cumference

02:02

Realize I'm not being specific, actually...

Say a bunch of iron

Caters

Hi, I am wondering if diffusion will be enough to ventilate an underground city. I think it would be enough. I mean plants draw CO2 from anywhere they can get it and CO2 will naturally diffuse into the atmosphere if there is a higher concentration underground(which with people living there, there will be). Similar things for the oxygen except that now oxygen is of lower concentration underground than in the atmosphere and plants give off oxygen while animals and people draw oxygen in.

Anonymous

@SirCumference AFAIK black holes are not just created from a random large mass....they are created from neutron stars or white dwarfs or large stars at the end of their life cycle...for neutron stars it is the TOV limit and for white dwarfs it is the Chandrashekhar limit....anyway I think you better ask on Astro SE

Anonymous

@SirCumference Wiki says "The maximum mass of a neutron star is not well known. In 1939, it was estimated at 0.7 solar masses, called the TOV limit. In 1996, a different estimate put this upper mass in a range from 1.5 to 3 solar masses. In the theory of general relativity, a black hole could exist of any mass."

Anonymous

BTW do you know the radius of the Schwarzchild event horizon ? That might be an answer to your question

rob

@Caters Diffusion through some barrier to the surface atmosphere, or diffusion in the still air of the city?

Anonymous

02:15

@SirCumference quora.com/Is-there-a-lower-limit-to-the-size-of-a-black-hole

Anonymous

Okay, i just came to know that minimum mass of a black hole can be 22 micrograms (Plank's mass) :-D...but it will disappear almost instantly due to Hawking radiation....

Caters

03:03

I mean bidirectional diffusion without a barrier(unless you consider gravity a barrier). Namely the CO2 diffusing into the atmosphere where plants are and the O2 diffusing into the underground city where it is needed.

Anonymous

03:14

@Caters I think you will get good/better answers if you post your question on the main site....

user218912

03:45

@SirCumference hi

user218912

@MAFIA36790 hello

user116211

hey @obe.

Sir Cumference

@obe Greetings

@obe Question

Sir Cumference

04:11

Holy crap!

I just realized

if you take any of the products of 9, from 9 to 90, and you add the ones and tens digits

you get 9

Hell, it works for all products of 9 that aren't multiples of 99

I feel so proud of myself...

user218912

@SirCumference hmm?

Sir Cumference

@obe Don't remember

user218912

lol

user116211

The chat is actually a bit dull when there is no 0celot ._.

Sir Cumference

I just realized

For any number $n$

$n^2 = (n-1)^2 + (n-1) + n$

So $30^2 = 29^2 + 29 + 30$

Math is cool

user218912

04:26

ummm

Sir Cumference

@obe ?

user116211

Why are you playing with numbers?

user116211

Do some Maths.

user218912

that's not a special formula or anything @SirCumference

Sir Cumference

@MAFIA36790 There are subliminal messages

user116211

04:27

^

user218912

you can write a random formula like that for anything

user218912

just write $n^2$ in a more complicated way

Sir Cumference

@obe sigh ;-;

@MAFIA36790 Isn't it ever cool to you when you discover something like that 9 thing?

...no?

user116211

@SirCumference Well, I'm not saying that's bad; but frankly speaking, it's not those Aha moments that you get while you do some real maths.

user218912

did you discover it yourself? @SirCumference

Sir Cumference

04:28

@obe Yeah

Secret

9,18,27,36,45,54,63,72,81,90

9n=10m+p=(9+1)m+p=9m+m+p

18=10*1+8=(9+1)*1+8=9+(1+8)
27=10*2+7=(9+1)*2+7=9*2+(2+7)
36=10*3+6=(9+1)*3+6=9*3+(3+6)
...
9n=10m+p=(9+1)m+p=9m+(m+p)
Therefore m+p=9

Therefore there exists recursion relation:
$$9n=10m+p=9(n-1)+(m+p)$$

Therefore
9=10*0+9=(9+1)*0+9=9*0+9
90=10*9+0=(9+1)*9+0=9*9+(9+0)
99=10*10+(-1)=(9+1)*10+(-1)=9*10+(10-1)
etc.

user218912

@SirCumference ok then maybe it's cool

user116211

@Secret ooooo....

Sir Cumference

@obe Ikr :D

@Secret Dude...

Wall of text?

user116211

How do you do this @Secret?

Secret

04:29

I wonder if there are similar recursions for other number bases...?

@MAFIA36790 My maths class taught me to always keep an eye for patterns formed by a complicated expression

Sir Cumference

@MAFIA36790 Sometimes numbers themselves are a bit fun

user116211

ahh.

Sir Cumference

As a kid, were you never impressed by huge numbers?

Secret

I don't see numbers as numbers (because then I never understood it), but when looked at them in the eye of abstract algebra, then suddenly the rules become clear.

The same idea underlies on why people tries to find the TOE in physics

Sir Cumference

Well come on, don't you remember pondering math tricks in middle school?

Even if they were useless, they were cool?

Secret

04:33

You might argue one possible motivation of me become so interested in abstract algebra is to understand numbers

user218912

I was writing a latex document where I store all my notes for everything I learn and I called it "independent study in science". I only realized what a bad name that was when I wanted to name the file with the acronym.

Sir Cumference

Lagrange's four-square theorem

Lagrange's four-square theorem, also known as Bachet's conjecture, states that every natural number can be represented as the sum of four integer squares. p = a 0 2 + a 1 2 + a 2 2 + a 3 ...

Another little thing I like

user218912

though I like that title, idk if I should keep it

Sir Cumference

Perhaps I should call my "discovery", Pies' nine theorem

(old name)

Sir Cumference's nine theorem is too long

user218912

someone probably discovered it before somewhere

user218912

04:39

but then again

user218912

stigler's law

user218912

yea it's boring here without 0celo7

user218912

gtg bye

user228700

Ello everyone :-)

user228700

For anybody interested in the story of that poor crow of mine: the crow had been climbing up a small water can now and again, all day yesterday. Today, we placed a taller cardboard box near the ledge of the balcony and huzzah, using the support of the box, it was able to stand on the ledge. Then, it took off, but it fell down into another garden. Thanfully, nothing happened to it. This is him/her now: (The one on the right)

user228700

04:53

Sir Cumference

@obe It's already been 11 days

Just 79 to go

Wonder why he doesn't bring it up on meta

user228700

I've absolutely no idea how it to managed to get up there but this means progress so yay! :-)

Sir Cumference

@Kaumudi I thought you said you lived in a big city?

That looks like suburbs

user228700

@SirCumference Yes, I do. Our cities are still relatively green :-)

Sir Cumference

@Kaumudi Lucky...

We get sunlight almost three times a year

gtg

user228700

04:56

Yes :-)

user228700

Oh, wut? :-|

user228700

Bye!

Anonymous

05:09

@Kaumudi Hey, thank you for talking care of the crow :) I hope it gets well soon :) Birds have an inclination to fly even when they are injured!

Yashas Samaga

is the phrase "flow of current" correct?

current is flow of something

flow of flow of something?

Anonymous

@YashasSamaga Current by itself means the flow of something. So you know in colloquial terms that is acceptable but not in technical writings. (Just my opinion)

Anonymous

@YashasSamaga electronics.stackexchange.com/questions/61780/…

user116211

05:26

@YashasSamaga This is wrong literally; flow of flow of...; but it doesn't really matter now; what matters is the maths and the physics; any book even like the big Jackson is indifferent to its literal meaning; after all it is not a big issue.

user116211

@SirCumference I don't disagree at all.

Yashas Samaga

Why do they all electronics.stackexchange.com "Electrical Engineering"?

They aren't the same obviously

user116211

@ACuriousMind, you are early riser, I see.

ACuriousMind

Sigh...noticed mistake in old answer, hunted for the correct solution for about an hour

user116211

ahh.

ACuriousMind

05:29

@MAFIA36790 Ahahaha...no, I'm just very late to bed :P I wanted to go...too long ago but then things kept me awake (and I wasn't really tired anyway)

Anonymous

@YashasSamaga "Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. " :-P There is a problem with the name, I agree :-D

Yashas Samaga

people care about physics more than their well being lol

user116211

@ACuriousMind okay; have a sleep then at least for an hour. Night.

Secret

Binary
$$1_2=2*0+2^0*1=(1+1)*0+2^0*1=0+(0+2^0*1)=0_2+(0_2+1_2)=1_2*0_{10}+(0_2+1_2)$$
$$10_2=10_2*1_2+1_2*0_2=2*1+2^0*0=(1+1)*1+2^0*0=1+(1+2^0*0)=1_2*1_{10}+(1_2+0_2)$$
$$11_2=10_2*1_2+1_2*1_2=2*1+2^0*1=(1+1)*1+2^0*1=1+1+2^0*1=10_2+1_2=1_2*2_{10}+(0_2+1_2)$$

Therefore suspect recursion relation:
$$1_2*n_{10}=1_2*(n-1)_{10}+(m_2+p_2)$$
where $m_2+p_2=1_2$

I suspect the same thing will happen for all bases, but I am not sure. In fact, I have not checked all the binary cases yet and it seems clear there is a crack in the pattern...

user116211

@YashasSamaga Sometimes you can't just sleep without clearing the problem; that happens to me many times.

Yashas Samaga

05:32

I know that :D

I sometimes find profs wandering around the campus at 2AM

sometimes I go and have a chat with them

Anonymous

@YashasSamaga Really? Where do you study? Which university ? :)

Yashas Samaga

Indian Institute of Science

user116211

@YashasSamaga WoW :)

Anonymous

IISC Bangalore ?

Yashas Samaga

:/

there is only one IISc unlike IITs :P

Anonymous

05:36

That's a great place :). You got in via JEE or KVPY ?

Yashas Samaga

KVPY

Anonymous

Ow..lucky guy :-D

user116211

I can't study other things when there is a problem looming over; unless I get the insight, it will try to collapse my conscious state; it's thrilling though.

Yashas Samaga

I get sleepless nights when I am working something on the computer

user116211

see? same trait.

user228700

05:41

@S007 :-)

Anonymous

@Kaumudi Good Morn :-D

Sir Cumference

Still got work

Gon be up for a while

user116211

What are you studying @SirC? Number Theory?

Sir Cumference

@MAFIA36790 Psychology for the credits

user116211

oh.

Sir Cumference

05:53

Test tomorrow

user116211

OMG.

Sir Cumference

@MAFIA36790 Surprisingly, psychology does not let me read your mind :/

I feel cheated

user116211

@SirCumference You are not Xavier; sorry.

Sir Cumference

@MAFIA36790 Jewish, don't get the joke... :(

user116211

Not a joke.

Sir Cumference

05:55

Nevermind, I'm an idiot

user116211

._.

Sir Cumference

Somehow, I thought you were talking about religion since you mentioned a Jesuit

user116211

WTH ;/

Sir Cumference

Okay, look, I'm tired

It's almost 1:00am

user116211

I don't like religion talks.

Sir Cumference

05:56

D:

I'm really tired, but gotta keep reading

user116211

@SirCumference good.

Sir Cumference

@JohnRennie Howdy

user116211

My great revelations occur while studying for exam in the exam eve midnight.

Sir Cumference

@MAFIA36790 Do you ever think dogs know more than us?

But they can't talk?

John Rennie

@SirCumference Morning. Still troubled by the insomnia?

Sir Cumference

05:58

What the hell am I saying?

user116211

@JohnRennie Exam prep.

Sir Cumference

@JohnRennie I guess it's nice because I need to study all night

user116211

Morning @JohnRennie, btw.

Anonymous

@JohnRennie Good morning :)

John Rennie

Hmm, I'm unconvinced that working all night is a good way to prepare for exams, but each to their own.

Sir Cumference

05:59

@JohnRennie Your teachings on degenerate gases helped me in astronomy :D

Transcript for