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he was in many cartoons
The Simpsons, Family Guy, Futurama, Dilbert
 
theguardian.com/science/2018/mar/14/stephen-hawking-obituary 'Stephen Hawking obituary by Roger Penrose'
3
 
> Hawking had many students, some of whom later made significant names for themselves. Yet being a student of his was not easy. He had been known to run his wheelchair over the foot of a student who caused him irritation.
 
Wrong move, Hawking
I don't think you'd like it if I pushed you out of your chair!
 
That could be a career-ending move.
 
9:08 AM
For HIM
Although I guess it's too late to murder Hawking now
 
No matter how many Nobel prizes you win, you'd always be remembered as "the jerk who pushed Hawking out of his chair".
 
The man who finally defeated Hawking
The Oxford chair is like the thunderdome
two men enter
one man leaves
 
"... Whites are richer in average because they do more work that is actually useful for other people ..." - Luboš Motl.
You what now?
 
Not me
All my work is useless
 
Has Hawking proposed using mountain-sized black holes to harness energy here on the Earth? I couldn't find anything in credible sources but this claim is all over the place
 
9:19 AM
Oh, he's younger than me. I kind of always assumed he was older.
Motl, that is. Not Hawking.
 
@YuzurihaInori If you actually wanted to see it, they put it on arXiv today, so you should be able to read this: arxiv.org/abs/1803.04449
(also, join us in the quantum computing beta!)
 
Now we finally know your name, Laura
 
@Slereah Me? I'm not Laura :P My real name's Ross - I'm not an author on the paper, as I had nothing to do with it :P
 
9:35 AM
@Mithrandir24601 Why is QuantumComputingSE sponsored by a company?!
 
who doesn't love money
 
meh
 
researchers working in this area could be great businessmen too
 
@lılostafa hmm, interesting
 
So in the "vote to close because off topic" reasons
why is there no "this isn't on topic at all"
 
9:40 AM
That would be like having "should be closed" as a "vote to close" reason.
 
That Penrose thing is really good
 
Well yes, but the other reasons are often not fitting
 
So that's the point of global GR, showing you will get black holes regardless of what metric you consider?
 
Some posts are neither homework questions, non-mainstream physics or to be transferred to another SE
Some are just bogus
@bolbteppa it is one of the benefit, yes
 
You could post on Meta, asking for "just bogus" to be added as a VTC reason.
 
9:42 AM
20
Q: Why does the Quantum Computing site look different?

Robert CartainoI recently announced a pilot program we are trying on Quantum Computing Stack Exchange, but rather than pointing you elsewhere, I decided to re-post the original announcement here. Enjoy! Sponsorship Pilot — Bringing resources BACK to Stack Exchange As our devs continue to work on features li...

 
@DawoodibnKareem I'm not very optimistic about any request on Meta :p
They're not fond of changing anything
 
'On the date Galileo was born, Richard Feynman died. On the date Galileo died, Hawking was born. On the date Einstein was born, Stephen Hawking died.'
 
but then who was born on the day Hawking died
 
pi
 
The One!
 
9:51 AM
'A powerful body of mathematical work known as Morse theory had been part of the machinery of mathematicians active in the global (topological) study of Riemannian spaces. However, the spaces that are used in Einstein’s theory are really pseudo-Riemannian and the relevant Morse theory differs in subtle but important ways. Hawking developed the necessary theory for himself (aided, in certain respects, by Charles Misner, Robert Geroch and Brandon Carter)
and was able to use it to produce new theorems of a more powerful nature, in which the assumptions of my theorem could be considerably weakened, showing that a big-bang-type singularity was a necessary implication of Einstein’s general relativity in broad circumstances.'
 
@Mithrandir24601 Nice (BTW, Bring resources BACK to Stack Exchange looks like MAGA :)
 
Birth of Albert Einstein (3.14.1879) Death of Karl Marx (3.14.1883) Death of Stephen Hawking (3.14.2018)
 
March 14 44 BC – Casca and Cassius decide, on the night before the Assassination of Julius Caesar, that Mark Antony should live.
COINCIDENCE???
March 14 1931 – Alam Ara, India's first talking film, is released.
This all paints a picture
It's also the birthday of Michael Caine
It's also apparently "Steak and Blowjob Day, an Internet-driven "men's version of Valentine's Day""
Too bad Hawking missed it
 
@Slereah I assume that's not how he died.
 
It might be
Hard to eat steak in his condition
 
10:09 AM
> Even recently, Hawking had a huge amount of energy to provoke and issue various strange futurist statements – e.g. that we have to ban the evil artificial intelligence, move the mankind to other celestial bodies, and other things
i really felt this and similar things are foreshadowing something big that is to be happened at 2020
The 4th, if not final, Convergence
 
He's not wrong
 
The question is then, what lies beyond that Cauchy horizon that is at 2020
(:P)
 
You wont know until it is too late to predict it :p
 
True true
:p
 
10:29 AM
@JohnRennie Hi !
 
Morning
 
Morning ! It's 4 pm here though
@JohnRennie I have something to ask.
 
Yes?
 
@JohnRennie I just don't get what formula or what concept has been used in this question.
 
Triodes? I didn't realise you were doing a history exam.
 
10:32 AM
I know the formulae for current aplification , but what is this ?
 
@JohnRennie badum tish
 
@JohnRennie I guess triode would be n-p-n or p-n-p transistor ?
 
@Slereah triodes though? Seriously?
 
that is how they are called
Like diodes
but 3
 
@Tanuj yes, back in the day triodes played the role transistors do today.
 
10:34 AM
Well , it is a 1981 question :p
 
@JohnRennie But I'm guessing that from a physics perspective, triodes are easier to analyze than transistors
 
I think the amplification factor is basically the same as $\beta$ for transistors.
 
You don't want to do PNP junctions just yet
 
A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode). Developed from Lee De Forest's 1906 Audion, a partial vacuum tube that added a grid electrode to the thermionic diode (Fleming valve), the triode was the first practical electronic amplifier and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention founded the electronics age, making possible amplified radio technology and long-distance telephony. Triodes were...
 
@JohnRennie Okay so $\beta=\dfrac{I_{c}}{I_{b}}$ for a transistor .
 
10:36 AM
"Today triodes are mostly used in high-power applications for which solid state semiconductor devices are unsuitable, such as radio transmitters and industrial heating equipment."
See?
 
But how does the question use this ?
 
They're still around!
 
@Slereah so is the bubonic plague, but that doesn't mean that we encounter it every day, or that we're pleased when we do.
 
@JohnRennie Why do you hate triodes so much
 
Guys , I think we are missing out the point of the discussion here.
 
10:38 AM
\begin{align}
U[\Lambda,a]U[I + \omega,\varepsilon] U[\Lambda,a]^{-1} &= U[\Lambda + \Lambda \omega,\Lambda \varepsilon + a] U[\Lambda^{-1},-\Lambda^{-1} a] \\
&= U[I + \Lambda \omega \Lambda^{-1},-\not{a} - \Lambda \omega \Lambda^{-1} a + \Lambda \varepsilon + \not{a}] \\
&= I + \frac{i}{2} (\Lambda \omega \Lambda^{-1})^{\rho \sigma} J_{\rho \sigma} - i ( - \Lambda \omega \Lambda^{-1} a + \Lambda \varepsilon)^{\rho} P_{\rho} \\
&= I + \frac{i}{2} \Lambda^{\rho} \, _{\mu} \omega^{\mu \nu} (\Lambda^{-1})_{\nu} \, ^{\sigma} J_{\rho \sigma} + i ( \Lambda \omega \Lambda^{-1} a)^{\rho} P_{\rho}
 
@Tanuj You're not going to be asked about triodes in your exam. If you're fascinated by triodes then feel free to study them intensively, but don't feel disappointed if I don't share your enthusiasm.
 
Has anyone ever tried this for the conformal group
 
@bolbteppa probably?
You might want to check...
What's his name
the big conformal field theory book
De-something
 
Not in there
DiFrancesco
 
Ah yes
 
10:39 AM
@JohnRennie I'm actually disgusted by the question itself , just wanted to know how the amplification factor got translated to resistance times conductance ?
 
@Tanuj I have no idea
 
@JohnRennie cool , no prob. I'll just memorise it then (Hoping its too old to come in the exam)
@JohnRennie One more question , this is a lot relatable.
How do I decide what's happening here ? I mean , where is the current gonna flow
Any idea about this ?
 
@JohnRennie okay , but how do I decide across which two points AC voltage(input) should be applied ?
@JohnRennie There will always be this one configuration right ? I mean the terminals across which input and output will be given and received are fixed , right ?
@JohnRennie okay so I gave it a reading , and I think I've got it ! Thanks :)
 
11:10 AM
@JohnRennie The bubonic plague is mostly used in high-power applications for which solid state semiconductor devices are unsuitable?
 
11:41 AM
@JohnRennie Hey ! Is your name John Harold Stewart Rennie ?
 
@Tanuj yes. Harold and Stewart are my two grandfather's names
 
@JohnRennie cool.
 
It was fairly standard back in the 60s to give children middle names in memory of other family members.
Maybe it still is ...
 
Hmm , nice
anyways , best of luck @JohnRennie
for the 500 windows updates
 
I've just had a phone call from a friend:
Him: my keyboard has locked up and I can't type anything
Me: it's a wireless keyboard you use isn't it?
Him: yes
Me: have you checked the battery?
Him: no
God preserve me
 
11:56 AM
lol
 
12:07 PM
Oh man
We can see @JohnRennie's inventions
"A substantially anhydrous underarm cream composition suitable for topical application to the human skin"
is that what they call
deodorant
at the patent office
 
Ah, you're searching a patents database?
 
I just used the google
 
@JohnRennie that's where I found your full name , I didn't guess it.
 
I believe this may be the toothpaste
 
@Slereah that's an application of depletion flocculation i.e. an entropic force!
 
12:10 PM
and what is it used for?
 
Lots of chemicals used in industry are supplied as a dispersion of a solid in water. For this particular patent the chemical is a zeolite dispersed in water.
In the dispersion the particles can either repel each other or attract each other. In the former case we say the dispersion is stable, while in the latter case the dispersion is flocculated.
But somewhat ironically a stable dispersion isn't stable. If the particles repel each other they can settle to the bottom of the contained and rearrange into something approximating spherical close packing. The result is a dense dilatant sediment that is a bugger to redisperse.
 
I should learn more about chemistry someday
I am v. bad at it
 
If the dispersion is flocculated the particles adhere to each other to form a porous network that is easy to redisperse, so in practice you want your dispersions to be flocculated.
The patent was for a method of flocculating a zeolite dispersion using depletion forces.
0
Q: What materials can be used to prevent the settling of particles in the ceramic slurry?

EMHAHow can we avoid the Settle particles in the ceramic slurry? What materials can be used for this purpose?

 
unfortunately no industry wants to build spacetimes
that's why we're in a recession
All the spacetime jobs went to China
 
Jim
::Jim sees that Stephen Hawking has died:: ..... Happy Pi Day, everyone!
 
Jim
@Fawad I hate how it started. You don't take the year as the next two digits. You properly celebrate Pi day at 1:59:26 in the morning
 
1:21 PM
in The DMZ, 17 mins ago, by lılostafa
Someone just added a code to one of the templates in MediaWiki namespace in Wikipedia that used users' resources to mine cryptocurrencies. and it remained there for a few minutes
:)
at least hundreds were affected
 
@Slereah HE is now officially old
 
Hopefully there aren't any more theorems that we need to ask the authors about
Still no answers from Yurtsever
Let's hope he answer
Otherwise I guess I'll have to ask Friedman
 
1:38 PM
Stephen Hawking dies the same day Karl Marx died
Coincidence???????
#FOREVERRESISTCAPITALISMBABY
:airhorn:
 
or forever die if u resist capitalism
 
@BalarkaSen how does it feel being the smartest person alive
 
Isn't that Neil Degrasse Tyson now
 
neil dedass tyson you mean
 
Oye, he's been dead for a few hours and we're already making jokes :(
 
1:42 PM
@SirCumference Marx has been dead for a few centuries and you're already mocking my effort to resist capitalism????
GULAG
 
@SirCumference he was a complete troll himself
@Slereah or bill bye
Nye
 
lol @ bye
 
Who's the current guy who is both an actual scientist and still somewhat well loved by the normies
 
@0celo7 ?
 
Kaku maybe?
 
1:43 PM
vote Kaku
but he's not Hawking old boy level I don't think
because strings is not reality (yet)
 
Penrose?
 
neither are singularities or hawking radiation
Penrose is insane now
 
Remember when Hawking did Hawking radiation?
 
RIP
 
1:44 PM
Good times
 
Weinberg
 
@SirCumference you were a sperm when he did that
 
Nobody else has that 'this is god talking' quality
 
@BalarkaSen Still didn't deserve to die :(
 
@bolbteppa the smartest man is likely Trump or Mozkuchi or someone like that
@SirCumference no one is saying that
 
1:45 PM
I vote for Mochizuki
 
Only @JohnRennie remembers
 
@SirCumference Don't be a sadass
it was a bummer Hawking died
Nobody's rejoicing his death
 
Witten is smarter than Hawking to the normies
 
@BalarkaSen That was fake. Did you just rick roll me?
 
1:47 PM
Yup
Did you seriously think that was real
 
'Course not, but now you put me in some paradox
Where the lack of rick roll = rick roll
 
? It has a rick roll in it
 
Well the rick roll wasn't real
 
Ah
Well that's the philosophical dilemma for you
 
The smartest person probably isn’t a physicist, let’s be honest
 
1:49 PM
I think Mochizuki qualifies as the greatest academic troll
 
'inter-universal Teichmüller theory (IUT), also referred to as the arithmetic deformation theory or Mochizuki theory'
 
@BalarkaSen what about the Bogdanov brothers
 
@bolbteppa Ah yes
 
@Slereah the bogs are great
 
Always need to have that paper handy
 
1:51 PM
@BernardoMeurer One genius decided to start his life on this day (PI day!) while another chose to end his.
 
checks Kaku to remember what Teichmuller theory is supposed to be
 
@bolbteppa Does anyone actually know what Teichmuller theory is?
 
Yes.
 
@BalarkaSen ahhh this thesis isn’t right
 
@BalarkaSen IUT, should be specific
 
1:52 PM
Help
 
Teichmuller theory is pretty simple
 
Illegal integration by parts is killing it
 
inter-universal teichmuller theory is where it's at
 
I met the Bogdanov brothers
They were at a science fiction con in my town once
 
The arithmetic version of everything is incredibly difficult
 
1:54 PM
Who needs an arithmetic version of anything?
 
mathematicians
 
Number theory hasn't helped anyone :/
 
I think the rot started with Dedekind's arithmetic version of Riemann-Roch
 
When she says she likes guys who love kids
 
I wonder what's going on with their face, really
 
1:55 PM
@BalarkaSen Erm, that looks like the guy from Slereah's old profile pic
 
Do they have some orphan disease
according to the daily mail, too much plastic surgery
but it's the daily mail
 
They looked pretty fine back in the days
The bogpill transmogrified them
 
@Nat "SE.QuantumComputing" Shouldn't it be "QuantumComputing.SE"?
 
they are revealing their alien origins
They were technically big stars on French pop science TV stuff, but I never saw their show, so I dunno
C'est pas sorcier (French for It's Not Rocket Science) is a French educational television program that originally aired from September 19, 1993 to February 1, 2014 which had a lot of success. In all, 559 episodes have been produced. All episodes can be watched legally on the YouTube channel. == The presenters == Sabine Quindou and Fred Courant are in the field. They visit places, interview specialists and introduce questions that Jamy answers. Before 2011, Jamy Gourmaud was in a laboratory truck. Now, he goes to symbolic locations relevant to the topic with a mobile laboratory equipped with touch...
this is the pop science I remember
 
@Yashas I find it hard to believe he chose to die
@BalarkaSen Still writing
This paper is completely fucking insane
It might be my best work
 
2:08 PM
@BernardoMeurer I worded it very badly. I did not mean in that sense.
 
@BernardoMeurer What's it about
 
@SirCumference I am modeling the understanding of sentences (defined as collections of signifiers, and the signified they produce) as graphs and showing that understanding people is a problem reducible to the Traveling Salesman Problem, and therefore is NP-Complete
 
ahah
 
Which is why we rely on contextual cues to understand things, in order to give us some heuristics
 
@BernardoMeurer Sounds cool. Don't know what most of that means though
 
2:10 PM
poor @BernardoMeurer fell for the trap of "natural language is reducible to logic"
 
@Slereah It's batshit
 
Anonymous
@BernardoMeurer What do you mean by "understanding people" ?
 
@Blue Understanding sentences they produce
 
Anonymous
BTW it does look very interesting. Please give me the link if possible
 
2:11 PM
It's not ready yet
I can link the rough draft
 
Why is the therapist division and not multiplication (and why is it not working)
 
Anonymous
@BernardoMeurer Sure, that'll do
 
@BernardoMeurer Hopefully you won't learn what a phatic sentence is
That's usually where things collapse
 
God, remember when math was so simple you had 4 basic operators? Good times
 
Anonymous
2:12 PM
In fact, I'll be actually very surprised if you can prove that understanding sentences is NP complete
 
Anonymous
Thanks!
 
@Slereah Isn't a phatic sentence anything Nicki Minaj says?
 
Could be!
 
:P
@Slereah I know the idea is probably borked, but it's been fun to write, and gave me a nice model to argue about how Satire works
@Blue Keep in mind, still very WIP
 
What is NP complete?
 
2:14 PM
@SirCumference I define it in the paper
Otherwise go wikipedia it
 
It was a pretty common idea in linguistics in like...
Early 20th century?
Then I think linguists realized that human speech made no sense
 
@Slereah Any idea why would LaTeX be throwing a figure with [H] to the end of the file anyway?
Instead of having it where I damn put it
 
There's so many good ones
 
@BernardoMeurer I gave up trying to understand how figures work in Latex
It never works properly
 
2:22 PM
Yeah :/
 
Usually I just try every possible option until one places it properly
if it ever happens
Otherwise I just try to make the previous text a bit longer until it does :p
 
@BernardoMeurer Are you using a package that supports H? It's not one of the default positioning arguments.
 
@dmckee Yeah, I'm using the float pkg
\begin{figure}[H]
    \centering
    \begin{tikzpicture}[scale=0.6, every node/.style={scale=0.6}]
        \SetVertexMath
        \Vertex[x=-8, y=0,L=\mathfrak{s}]{s}
        \Loop[dist=1cm,label={$\mathfrak{s}$},style={thick,-}](s)
        \Vertex[x=8, y=0,L=\mathscr{S}]{S}

        \foreach \y [count=\n,evaluate={\m=int(6-\n)}] in {2,...,-2}
            {\Vertex[x=-6, y=\y, L=i_\n]{l1\m}
                \Edges(s, l1\m)}

        \foreach \y [count=\n,evaluate={\m=int(8-\n)}] in {3,...,-3}
            {\Vertex[x=-3.2, y=\y, L=j_\n]{l2\m}
@dmckee This is the culprit
It makes a damn page for itself somehow
 
@Slereah If you regularly want to control the position exactly then you might not want to use floats in the first place. The point of floating environments figure table, etc... is tht the compiler can move them.
 
@dmckee what is the secret tag to make it work properly then?
 
2:26 PM
??
 
What do you advise to use to put a figure after a piece of text
 
Nat
@SirCumference Conventionally, yes, though I dislike the little-endian format that's inconsistently applied to the start of a URL, e.g. Chat.StackExchange instead of StackExchange.Chat, so I tend to reverse the order. I figure that such conceptually incorrect standards are maintained due to universal adoption, so I figure that breaking that unanimity may help enable future improvement.
 
[!h] has worked
 
Huzzah!
 
@Slereah I usually don't (advise doing that) but when I do I read
335
Q: Force figure placement in text

MarinI have a problem when a lot of figures are in question. Some figures tend to "fly around", that is, be a paragraph below, although I placed them before that paragraph. I use code: \begin{figure}[ht] \begin{center} \advance\leftskip-3cm \advance\rightskip-3cm \includegraphics[keepaspectratio=true...

 
2:27 PM
thank you
I'll put it in my favorites, just in case
 
10
Q: Non Floating Figures

user46840I want to stop my figures floating, but I still want to be able to have the caption to the side of them; mainly to save space and for presentation. The only way I know how to get the figure caption to the side of an image is as follows; \begin{SCfigure} \centering \includegraphics[width=80m...

and
 
I remember thesis writing man
The first page was always the worst
Doing the cover in the proper style
Putting all the little logos
 
@Slereah Senior thesis, or an actual thesis?
 
Master thesis
Actual thesis does not exist 😢
 
What should I do with this 1986 Physical Chemistry book I found
 
2:34 PM
Eat it
 
Burn it
 
Or read it, I dunno
What do you want from us
 
You guys treat your books well
 
@BernardoMeurer Eyo did you listen to Byrne's new album
It's fucking dope
 
you should see my copy of Kleinert
It's in a pretty bad state
But that's his fault, really
You don't make a 1000 pages book with a cheap spine
 
2:37 PM
Something I have been considering with my writing is trying out the tufte classes for LaTeX, which support positioning of supporting materials (images, tables, etc) right by the associated text by default.
 
Figure 1: Egg slicers, good for slicing eggs and teaching calculus
 
Tufte, of course, has a whole different philosophy about the layout of written material than the legacy approach.
Come to think of it, there are two of my short-notes for students that would probably benefit a lot from conversion to that style.
Another project for my copious spare time.
 
-1
Q: May we discover the right CTC soon

MalayTheDynamoStephen Hawking is dead. I didn't believe it when I first heard it. Same with most of the people here. And then I cried. In the honour of the Supreme One, I'd like to propose a Chuck Norris Fact style question. Like this. Also requesting Moderators to create a Stephen-Hawking tag.

 
0
Q: Why are there no options for actual off-topic questions

SlereahWhen proposing to close a question due to being off-topic, these are the choices Off-topic due to being a homework question Off-topic due to being non-mainstream physics Off-topic due to being engineering Off-topic due to belonging to another Stack Exchange (Physics Meta or Math) Other Short ...

speaking of which
 
2:47 PM
I flagged it as off-topic and used the "blatantly off-topic" option
 
is there a blatantly off-topic option???
 
Anonymous
@Slereah Yes
 
Anonymous
Go to the flag option
 
Yeah.
 
Oh
I'll delete my question then :p
 
2:48 PM
posted on March 14, 2018 by Slereah

When proposing to close a question due to being off-topic, these are the choices Off-topic due to being a homework question Off-topic due to being non-mainstream physics Off-topic due to being engineering Off-topic due to belonging to another Stack Exchange (Physics Meta or Math) Other Short of using "other", there is no choice for the question actually being off

 
loool
the timing of that was perfect
 
Wait, where is the blatantly off-topic flag option
I'm not seeing it there either
 
the route I had (since I'm a low-rep user on PSE) was flag as "should be closed"->"off topic"->"blatantly off-topic"
 
but the options I get are also the ones I posted about!
Am I being denied the blatantly off-topic option
 
huh
"Blatantly off-topic (this question has nothing to do with physics)"
 
2:50 PM
Weird
Maybe I'll raise that question instead
For now I flagged it as very low quality :p
 
you only see the "blatantly off-topic" option if you start from the "off-topic" option rather than the vlq option
 
I tried, didn't see it
Oh well
I'll investigate further next time I see a very bad awful question
 
weird
 
shouldn't take too long
@0celo7 So consider this
I have a globally hyperbolic spacetime (or stably causal is enough, I think)
 

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