The h Bar

0celo7

00:37

@user36790 Achilles: "I was used to be an assassin like you, but then i took a bullet in the knee."

I'm dying :D

Oh wait, you didn't play Rogue

Spoler Alert: Haytham shoots Achilles in the knee to teach him a lesson

Bernard Meurer

00:54

@DanielSank hey man, not much, in a infinite bus trip

And I don't know about college yet, still on the wait for any answers. UMN people were on Rio and bad dinner with me a few days ago, that went nicely

DanielSank

01:11

@BernardMeurer UMN? Bad dinner?

ACuriousMind

That "bad" is supposed to be "had", I think

DanielSank

@ACuriousMind That makes a lot more sense.

HDE 226868

@BernardMeurer 64 km/year $\approx$ 1/6th km/day $\approx$ 167 meters/day. If you can walk at ~1.67 meters/second (about a 16 minute mile, or a bit under 4 mph), then you'll need to walk for 100 seconds, or under two minutes, each day.

I think.

So basically, if you can't hit that, you're clearly a person from WALL-E.

Assuming no disabilities.

0celo7

01:46

@HDE226868 why did you link that

FenderLesPaul

@0celo7 Meeting Wald tomorrow morning

the hotel they put us in is fancy as fuck

it has a pool in it

and we have sofas with jacuzzis in our room

where the hell do they get the money

HDE 226868

@0celo7 Because I didn't want to assume that he knew what the movie was, and because my point was that if a perfectly normal human being can't move the requisite distance each day, then clearly they are not exactly in shape. Hence the reference.

ACuriousMind

@FenderLesPaul The university pays the acccommodation for applicants on a visiting day? oO

FenderLesPaul

@ACuriousMind yep

and they're taking us to fancy diners

and Second City!

ACuriousMind

I'll never understand America :D

FenderLesPaul

01:55

I don't think most schools have accommodations this fancy though

I'm expecting Berkeley's to be really shitty

they place us in the homes of other students

0celo7

02:06

@ACuriousMind Ah, the barbarian trying to understand the shining city on the hill.

0celo7

02:46

@ACuriousMind This 1800 page literature text is depressing.

I want to go back to Mr. Morton.

This lit book is larger than MTW and Wald combined.

@FenderLesPaul

Victor

03:02

How to find the list of all the axiomatic formula needed for the PHD level fluid mechanics and heat & mass transfer before the year of 2017? Anybody can answer: physics.stackexchange.com/questions/241903/…

Thanks in advance

Hari Prasad

04:48

Physics chat session is tomorrow? (i mean 8th march)

0celo7

05:12

1. For $f: A -> B$, the set of points of B which are images of points of A is very commonly denoted $im(f)$ or $f(A)$. 2. The geodesics are local extrema of the length functional. Due to the sign change, "minimal length" would be a geodesic that is as closest as possible to a null curve, but it is not clear why that should be a good notion (or even exist). Particularly considering causal structures, Mather theory and other things, it turns (non-trivially) out that the maximizing "causal" geodesics are more relevant. — ACuriousMind Feb 20 '15 at 0:53

@ACuriousMind What do you mean by "Mather theory"

I can't find any reference in the usual texts.

GPhys

I visit BNL tomorrow :)

Hari Prasad

05:39

i found an equilateral triangle with integer coordinates

in 2 dimensions!

0celo7

@Danu Holy. Shit.

Hari Prasad

@0celo7 not the room you are looking for?

0celo7

@HariPrasad I come here pretty much daily. I think I'm in the right place.

Hari Prasad

@0celo7 Then tell me, what is the Physics chat session, tomorrow for?

0celo7

@HariPrasad It's when people who don't come here daily come to chat

The regular irregulars

Hari Prasad

05:52

@0celo7 But you come here daily.

0celo7

So?

Hari Prasad

you have registered for it. (i have too)

0celo7

So?

I'm going to bed, good night.

Hari Prasad

its good morning here. anyway good night!

Danu

07:34

@0celo7 Funny games? ;)

Danu

07:49

Old school Dutch song:

Hans en Nan Boskamp - Aan de Amsterdamsche grachten (Imperial 1956)

►

Slereah

08:17

0

Q: How is Space-Time produced?

The parable of the ant walking on the surface of a balloon tells us that as the balloon expands, more of surface is created, hence more place for the ant to walk. Space-Time is also in the same manner and also it does not make sense to ask "What space-time is expanding into?". The expanding univ...

where might i buy some spacetime

−5
User was removed

MY INTERNET POINTS

ACuriousMind

10:26

@0celo7 I think I wanted to show that two people can play his game of impenetrable terminology ;) Mather theory is some theory concerned with the solutions to differential equations on manifolds, and has been applied by some to get statements about the existence of solutions to the geodesic equation, but I don't actually know any specifics.

Or perhaps I knew, but forgot? :O It's a throwaway comment I made one year ago.

Hari Prasad

10:41

@ACuriousMind Why are spin-1/2 particles the simplest particles?

1

Q: Why are spin-1/2 particles the simplest particles?

Paul Dirac, in his interview with Friedrich Hund, mentioned that it was to his surprise that his equation automatically incorporated spin. He said that he thought the simplest theory, for which he was formulating his equation, would be that of a spinless particle (a scalar) and that there would h...

quantum-mechanics particle-physics quantum-spin fermions dirac-equation

ACuriousMind

What about my ""simple" and "complicated" are not really words with objective meanings, so this question is going to be a guessing game." is unclear to you?

Slereah

Are they

I mean it's first order but on the other hand, it's a system of equations

Klein Gordon is much simpler I'd argue

Hari Prasad

@ACuriousMind well i think it means - why is it hard to explain particles(fermions) with higher spin using Dirac equation

Slereah

what

ACuriousMind

@HariPrasad I do not understand what you are trying to say

Slereah

10:45

I am a bit torn on Marco Frasca

On one hand, his papers seem to be fine

Decent math, what I did by hand checks out, bibliography and all

On the other hand, he acts a bit odd

Slightly crankish

ACuriousMind

Who the heck is Marco Frasca?

Slereah

Some dude who writes papers on exact solutions of $\phi^4$ theory

ACuriousMind

That...explains why I've never heard of him :D

Slereah

Well how many physicists have you heard of :p

Hari Prasad

@ACuriousMind I didn't mean to say this. But the person asking the question thinks so(I hope)

Slereah

10:48

Frasca did post on Stack Exchange, though

ACuriousMind

@HariPrasad No, the person asking the question is asking what is written in the question - why did Dirac call spin-1/2 particles the simplest ones?

Hari Prasad

@ACuriousMind Ok but why do you think Dirac used the word "simple"?

ACuriousMind

"I think it comes down to the Dirac equation being a first order and the Klein-Gordon equation being a second order equation"

That's the other half of my comment.

ACuriousMind

4

Q: Can a tomato pierce a hole in a steel plate if only the tomato is traveling fast enough?

A tomato is traveling very fast towards a steel plate. Let's say this happened in a vacuum, so that the air resistance wouldn't rip the tomato apart before it even hit the steel plate. Obviously the tomato would get destroyed too, but the question is whether there would be a hole in the steel...

velocity

Really?

Bernard Meurer

11:27

@DanielSank *had dinner. UMN = University of Minnesota

user116211

@ACuriousMind hmmm.... it's all about momentum.

user116211

@BernardMeurer: o/

user116211

But tomato isn't rigid ;/

Bernard Meurer

Hey there @user36790 (you should get a name dude)

user116211

@BernardMeurer ha! name! Haven't thought so! Anonymous!!

Bernard Meurer

11:30

@ACuriousMind how do I switch to the new chat on mobile? New chat interface that is

ACuriousMind

Uh

I don't use mobile chat very often

user116211

@BernardMeurer what OS?

Bernard Meurer

@user36790 I'm not saying your real name, just something more relatable than a number

iOS

user116211

@BernardMeurer Hmmm....you suggest?

Bernard Meurer

MrMagicHike

user116211

11:31

@BernardMeurer 0celo uses it.

user116211

@BernardMeurer :P

Bernard Meurer

It's what I call my backpack

user116211

0

A: Question about the concept of particle's degrees of freedom

There seem to be two different notions of degrees of freedom here. The first, and usual, is the dimension of the configuration space of the system, that is, the number of variables needed to uniquely specify its position/shape/configuration (not it's motion). This is what one calls degrees of fr...

user116211

@ACuriousMind: I remember we discussed it some times back.

Hari Prasad

12:03

Who is ignaz lindner? and how is this person related to physics?

sharaf zaman

12:33

hello geniuses

IͶΔ

13:00

Serenity guys.

You were flagged @Slereah. Anything wrong?

ACuriousMind

@IͶΔ Look at his chat profile, he can't respond in the next half hour.

IͶΔ

:/

0celo7

What did Sam do?

ACuriousMind

@0celo7 I didn't see the flag, but can't you guess? :P

0celo7

Nothing deleted...

@ACuriousMind no.

ACuriousMind

13:05

@0celo7 There is something deleted, it's just older.

0celo7

Oh.

John Duffield

@dmckee : it matters whether something is real or not. See anna v's answer here, she's a retired experimental particle physicist. "Virtual particles exist only in the mathematics of the model". And you cannot access those virtual particles, or make them real, or record them in your detectors. Virtual photons are not the same as vacuum fluctuations, they are field quanta. Like you divide a field into abstract chunks.

When the electron and the proton attract one another the resultant hydrogen atom has very little in the way of a field left, so you can claim that they have "exchanged field". But they haven't been throwing photons at one another. Hydrogen atoms don't twinkle.

0celo7

13:20

@ACuriousMind What did you say?

ACuriousMind

Something which made no sense.

0celo7

@ACuriousMind Look at most of my posts. I'm no stranger to such things.

@ACuriousMind Yes.

Slereah

@IͶΔ Nothing at allll

0celo7

13:38

@Danu You're missing "woo" from your bingo

And "511KeV electron"

Or photon

Or whatever it is he says

Slereah

vixra.org/pdf/1602.0340v1.pdf

Mispelt Einstein in the first sentence

Bad omen

Also "heirarchy"

"We worked alone on this theory for about 10 years, and finally has it been developed after our time spent at top class University, alone"

RED FLAG

Oh wait, the text is literally one page long

"But anyway, since wee live on a brane, it is possible that brane be between two plates. And it is well known that between plate there is Casimir energy, which we calculate is equal to vacuum energy also known as dark energy, which we know is making the Universe accelerate."

I do love Vixra

"Dark matter can cause extintsion of dinaosaur through enhance comet shower as already studied recently."

What is it with cranks and poor typesetting

All Vixra papers seem to be done on Microsoft Word

ACuriousMind

Using TeX requires a rudimentary ability to think logically :P

Slereah

"An alternative worldview of Earth's history is presented to replace outdated uniformitarianism philosophy. "

The Geophysics section is full of creationists

"Why I Disagree with Scientist Sylvia Earle"

Good paper title

"Can Mankind Really Expect To Tame Earth's Climate And Remove It From Cosmic Control?"

"Who Will Be The Next Albert Einstein?"

And what will be the evidence

"The Soul as a Negative Mass"

Can the soul violate the averaged null energy condition

More at 11

"Building Pyramids Using Very Long Ropes"

I like that one because it sounds charmingly naive

The abstract is even better

"The pyramids could have been easily built using very long ropes: up one side of the pyramid, across the top, down the other side, and out to the pulling team. Many ropes could be used in parallel. "

0celo7

13:55

Lol

Implying it wasn't aliens

yuggib

@Slereah "the theory can't be falsified at LHC because the people there don't work on weekends"

genius

0celo7

To be fair there's no reason why the laws of physics should be the same on weekends as on weekdays

yuggib

@0celo7 for him, they're not

the tau family is produced only on weekends

Slereah

@0celo7 Physics goes nuts on the week end

all the particles party

0celo7

The Higgs gets rowdy with the k meson

Slereah

14:04

The neutrinos acquire mass by getting pizza

0celo7

@ACuriousMind No matter how kind you are, German kids are kinder.

Slereah

All of them?

ACuriousMind

@0celo7 old but gold

Slereah

My favorite bit of physics history is that Heisenberg's mom knew Himmler's mom and she asked her to tell her son to lay off Heisenberg with the whole jewish physics accusations

John Duffield

14:39

@John Rennie : this is my explanation of time dilation. See if you can fault it.

Slereah

I got this message : "Welcome to Stack Exchange chat! Keep these mind:

Since chat is an extension of the main Q&A site, the Be Nice policy applies here too.
See something that makes you uneasy? Don't hesitate to flag it.
Chat is the Stack Exchange network's Third Place; help make it a good one."

The only button to click was "I'll keep it in mind"

WHAT IF I DO NOT

ACuriousMind

Then you are a naughty Slereah and will be punished.

user54412

"Don't hesitate to flag it"

John Duffield

@dmckee : Slereah has a ↑ question for you.

user54412

Sounds like a message a rogue AI would come up with, in order to promulgate the message further.

Slereah

14:54

Been doing a lot of flagging on SE lately but apparently to no avail!

0celo7

I wonder if we got that because there are hooligans in here.

Slereah

All savages

0celo7

How do y'all feel about the name "Eli"

Slereah

It is certainly a name.

ACuriousMind

I don't feel anything.

Slereah

15:06

It's the name of the scientist at the entrance of the Black Mesa thing

Eli Vance

0celo7

@ACuriousMind Like, dislike or no preference?

Slereah

ACuriousMind

@0celo7 Dislike would be a feeling.

0celo7

@ACuriousMind Well what names do you like

ACuriousMind

Choosing your children's names already?

0celo7

15:10

@ACuriousMind Always be prepared.

Slereah

What about Einstein Q. Rockefeller

0celo7

@ACuriousMind that was a serious question btw

@Slereah wrong last name and what does the Q mean

And I'm not giving anyone the first name Einstein

@ACuriousMind I actually really like Maike, but that's a horrible name for an English speaking girl

ACuriousMind

@0celo7 For girls, I like Samantha.

for boys, I'm undecided

0celo7

It's the girl names I have figured out. Also that name sounds awk in Germab.

In German too.

I've never met a German named that, AFAIK.

ACuriousMind

@0celo7 Correct, I'd choose the English pronounciation

0celo7

15:21

For a German girl?

I like Elizabeth, primarily because of Bioshock Infinite, but I'll let my mom think it's because it's her middle name :)

ACuriousMind

@0celo7 I don't see a real problem with that

Also, the day I'll have children is far enough away that it's not at all certain it will be in Germany

John Rennie

@Slereah I've just got this message as well. It made me think of this:

2

Just replace santa with moderator :-)

0celo7

@ACuriousMind you're 23

You should already be 5 deep

ACuriousMind

wat

0celo7

One a year.

I'm kidding btw.

ACuriousMind

15:28

@0celo7 I hoped so :P

0celo7

You should move to America

Change your name though, so people can pronounce and spell it.

Both first and last. They're both tricky.

John Rennie

@JohnDuffield my aim in writing a canonical question is to give my readers the ah, so that's how it works moment of revelation. In this case I want them to understand what time dilation means for all types of motion whether it's constant velocity, accelerated or whatever, and that's why I wrote the answer in the way I did.

@JohnDuffield Though I decided against going into that much detail, it's only a small step from what I wrote to understanding time dilation in general relativity as well. That's the power of the approach I took.

0celo7

An umlaut in both names is unfortunate.

John Rennie

@JohnDuffield While I have no objection to your answer it just repeats arguments I've seen here and else a thousand times. I don't it will ignite that moment of revelation in anyone.

@JohnDuffield Whether your answer will attract downvotes from your devoted fan club I don't know - I won't downvote it since it's not wrong. I just think it fails to achieve the goals I had in mind.

0celo7

@JohnRennie what's a good name for a boy

John Rennie

15:36

@0celo7 "John"

Qmechanic

@JohnRennie : Actually the moderators got that pop up message as well.

0celo7

Taken by my uncle

@JohnRennie next

ACuriousMind

Wait, why didn't I get that message?

0celo7

You're an AI

John Rennie

@Qmechanic Ah OK. I must admit I thought it was a not so subtle slapping for our behaviour yesterday afternoon.

@0celo7 Stewart

0celo7

15:38

You're too British

John Rennie

@0celo7 It's impossible to be "too British"

Though the rest of the world can be "too foreign"

0celo7

That's another thing a person who is too British would say

I do like John, but it's taken.

David Z

@JohnRennie nah, any new features of the interface come from the SE team and won't be responses to things that happened here.

John Rennie

I think we're generally pretty well behaved here. The Sci-Fi chat room degenerated into a slangfest and got closed.

@0celo7 What the boy's father's first name?

0celo7

Huh?

What boy

John Rennie

15:43

@0celo7 Aren't you trying to find names for a boy?

0celo7

Uh, Ryan

I would never have a Jr.

David Z

@JohnRennie yeah, that caused some consternation at the top level.

John Rennie

That's what happens when you get a lot of nerds in a chat room together. It wouldn't happen here :-)

ACuriousMind

Are you doubting our nerd cred?!

0celo7

I'm not a nerd.

I've said this many times.

ACuriousMind

15:49

And we never believed you ;P

John Rennie

@0celo7 possibly, but then you don't even pass the Turing test.

0celo7

@ACuriousMind you can't provide any evidence to the contrary

ACuriousMind

@0celo7 You read advanced GR books in high school!

For fun!

Slereah

Possible portrait of @0celo7 :

John Rennie

When I was at school I used to get called "Joe 90". Luckily no-one remembers Joe 90 these days.

0celo7

15:54

@ACuriousMind and forgot all of it!

@Slereah do you want a picture of me

ACuriousMind

> Joe 90 is a 1960s British science-fiction television series that follows the adventures of a nine-year-old boy, Joe McClaine, who starts a double life as a schoolchild-turned-superspy after his scientist father invents a device capable of duplicating expert knowledge and experience and transferring it to a different human brain.

"schoolchild-turned-superspy" is not the worst persona to have, @JohnRennie :)

John Rennie

Also I got called "the Milky Bar kid"

Slereah

Since my name is Lereah I got called L'oréal

Pretty consistently

Pretty much the only pun you can do easily

ACuriousMind

> The Milkybar Kid is a blond, spectacle-wearing young child, usually dressed as a cowboy

You...dressed like a cowboy? :D

0celo7

Lol

Slereah

16:01

This is America @ACuriousMind

Oh wait, he is a UK fellow

John Rennie

I can't remember ever having dressed as a cowboy. The only fancy dress party I remember going to was when I was six, and my Mum made an octopus costume. Having a mother who's a biologist is like that.

Slereah

You weirdo

0celo7

@ACuriousMind how long is your hair ATM

ACuriousMind

A bit longer than the middle of by back, why?

@JohnRennie Haha, @DanielSank would love such a costume, I think

0celo7

@ACuriousMind Just curious.

@ACuriousMind do you brush and condition regularly

ACuriousMind

16:12

@0celo7 Uh, yes, I get terrible dandruff if I don't :P

0celo7

How much time does that take?

Like per week, on average

ACuriousMind

Not long, my hair is naturally straight. I don't think I would have the patience to brush curly hair

Secret

Random thought of mine to be modelled and resolved later
Preliminary thoughts

Suppose A prepare n copies of entangled pair of electrons (such that their projection of their spin in the z axis are anticorrelated) in the span of n minutes. Then for each copy, he send one member of it to B as soon he prepares them.

When B receives the electron, he will always measure it and record the result. However, A may choose to measure his electron before he send the other member to B

It would naively at first seemed that B can realise A has measured a bunch of m copies (m<n) when in theory he sees th…

ACuriousMind

@0celo7 I'm not sure, maybe like 15 mins/day?

Yeah, I guess I would be about 15 mins faster out of the bathroom in the morning with short hair.

@Secret "when in theory he sees the anticorrelation in his measurements" You can only see the correlation when you have access to both A's and B's results.

0celo7

@ACuriousMind Does longer hair take more time. Or past a certain point all hair takes the same time?

Like above shoulder vs. chest length

Is there really any difference there?

ACuriousMind

16:20

I don't think it makes a difference after it's longer than your shoulder

Secret

@Acuriousmind "have access to both A's and B's results."
Am I am guessing that's what most entalgement discussion talks abotu as requiring a classical channel

Because the act to "gain access to both results" is in no greater than the speed of light

ACuriousMind

@Secret That is basically exactly what the "no-communication" statement is about. If you only have one end of the correlation, you cannot possibly tell whether the other end has been measured or not.

John Rennie

0

Q: Can anyone explain the twin paradox properly?

There are a thousand explanations of the twin paradox out there, but they all end up saying something vague like it's because one twin is accelerating or you need general relativity to understand it. Can someone please give a simple and definitive explanation for why the twins are different ages ...

special-relativity relativity

Secret

@ACuriousMind Interesting, I actually have not read about the formal proof of the theorem in detail yet, and I stumble upon this sufficiently laymen explanation on why entanglement is not superluminal communication, simply because I am trying to imagine how an entangled state evolve in some hypothetical experimental scenario

I guess then I have no problem explaning to my non physics friends on entaglement then

John Rennie

Comments please ...

And if anyone knows how a simple way to calculate geodesics in the Rindler coordinates please, please tell me!

Secret

16:26

@Acuriousmind Actually, does the result of the no communication theorem will imply the following: If we are ignorant of any correlation that exists in our measurements, will we be prompt to conclude that EVERY measurement result will potentially be resulted from an entangled system or an isolated system (since we cannot distinguish between the two without access to that information of correlated results)?

that is given some quantum system and we get some observables via measurement, if we do't have access to the information that indicates the result might be correlated, then we cannot tell whether that observable is due to an entangled state or a non entangled state?

John Rennie

@0celo7 you remember that message we all got about being nice in the chat room?

ACuriousMind

@Secret Observations are not "due" to entangled or non-entangled states. Observations are observations. You cannot reconstruct the quantum state before measurement from a single measurement.

0celo7

@JohnRennie If a mod can post it, I think it's fine.

(Now watch me get suspended for 2 days and Danu skips along)

Secret

@Acuriousmind
Umm, I mean a repeated number of measurements from an ensemble (copies of the system).

Using the electron spin experiment above, if we just look at the results we obtained, it will be something along the lines of up up down down up down up down down up etc.

But if we just use this string of ups and downs, we should not be able to conclude whether the electrons from each copy was involved in an entangled state before the measurement?

0celo7

@JohnRennie why don't you \mathrm stuff

ACuriousMind

16:38

@Secret If you look at the results for measurement of both electrons, you will be able to conclude that. If you only look at the measurement of one electron, you indeed won't - because then you haven't measured an "entangled" state, you just measured the state of one electron.

Secret

I see, makes sense

John Rennie

@0celo7 when I'm writing this stuff it's hard enough to the stuff fizzing around in my brain onto paper as it is. I figure the Latex tweaks can be added later.

ACuriousMind

The (mixed) state of a subsystem doesn't know why it's the way it is - you can't detect entanglement of two systems by only measuring one.

John Rennie

@0celo7 and to be honest I don't really care whether someone writes $dx$ or $\mathrm dx$.

Only nerds care about that sort of thing. :-)

0celo7

::shock and horror::

I...I don't care either!

John Rennie

16:41

@0celo7 :-)))

0celo7

Nice double chin.

0

A: Gauss law in gravitation

Yes you can ! I remember it being one of the first things taught to me at University.

What the fuck?

Not only is that a terrible answer, but where do you do vector calculus as a "first thing"

David Z

@0celo7 I would advise @Danu (and you too) against doing that

Secret

@0celo7 tinyurl.com/z8zg99v

David Z

@0celo7 vector calculus? It was the first math class I took at university

0celo7

@DavidZ Maybe you should remove the starred messsage...

@DavidZ in a physics class

David Z

16:44

@0celo7 yeah good call

0celo7

@Danu ;(

John Rennie

@DavidZ: thanks to whichever of you it was wikified my latest question. Fast service as always :-)

David Z

Not me

John Rennie

@DavidZ Could you protect it in case my greatest fan decides to post another helpful answer?

David Z

@JohnRennie I'd rather leave protection until the question shows that it needs it. It's not a tool meant to protect against specific people answering; it's meant for questions that draw a lot of answers from new users that wind up needing to be deleted.

John Rennie

16:47

OK thanks.

David Z

If a non-answer or something gets posted just flag it as usual

John Rennie

NB "my greatest fan" didn't mean JD, it meant the guy who posted a YouTube video titled "Stack Exchange sucks and John Rennie is an asshole".

0celo7

wonder when JD was born

he could be Einstein reincarnated

David Z

Ah, yeah, gotcha. Not that it really matters who it is. The procedure is the same.

@0celo7 that's not terribly useful either

0celo7

@DavidZ it would explain many things

@ACuriousMind am I the only one who finds the notation $T_p\phi=\mathrm{d}_p\phi$ for $\phi:M\to N$ very confusing

John Rennie

16:53

@0celo7: you might be interested to read "Einstein's Mistakes" by Hans Ohanian.

ACuriousMind

@0celo7 No, and I have never seen that

John Rennie

Though I have to say it was one of the less thrilling books I've read.

0celo7

@ACuriousMind you've never seen the differential denoted by T?

ACuriousMind

@0celo7 That's what I said.

0celo7

I find that hard to believe

ACuriousMind

16:58

::shrugs::

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