The h Bar

12:13 AM

@Mr.Xcoder yes

HNQ

12:47 AM

If I have a timelike hypersurface $S$ in a manifold with a spacelike foliation $\Sigma_t$, is $S \cap \Sigma_t$ homeomorphic for every $t$

Bernardo Meurer

Where's @JohnDuffield?

Shouldn't he be back?

I miss our space man

Skyler

Hey guys, something weird happened with a calculation i did.

Slereah

@BernardoMeurer This user is suspended on the parent site and cannot chat for 22 days.

Skyler

I got that to have a black hole with the schwarschield radius of the observable universe you only need 10 times the mass of the observable universe

Bernardo Meurer

@Slereah Omg so soon

Skyler

12:52 AM

which just doesn't make sense at all

hey @BernardoMeurer been a while since we last saw each other

Bernardo Meurer

@Skyler Oh hey!

Yeah it's been quite a bit!

How are ya?

Skyler

pretty decent, just cleaning up my room after a long trip

and getting patently wrong calculations

the usual

Bernardo Meurer

Hehehe, same here, solving calc hw

Skyler

but this one really bugs me

Skyler

3:51 AM

"The observable universe's mass has a Schwarzschild radius of approximately 13.7 billion light years."

Can anybody explain that to me, that seems super non-obvious given how diffuse the universe is

4

Q: How can the Schwarzschild radius of the universe be 13.7 billion light years?

So i was reading about Schwarzschild radius on Wiki and I found a interesting thing written there link. It says that the S. radius of the universe is as big as the size of the universe? How is this possible? Since most the universe is empty space shouldn't the S. radius of our universe be s...

5

Q: Why does the Schwarzschild radius become excessively large after a certain point?

Here's something that I've found difficult to wrap my head around. The relationship between the Schwarzschild radius and mass is linear. It's generally known that if you take an object in the universe and squeeze it down to it's Schwarzschild radius, that radius will always be smaller than smalle...

black-holes event-horizon

Wouldn't this imply the Schwarzchild radius decreases with time (as matter we could observe before falls outside the observable horizon)

despite the size actually increasing?

Dawood ibn Kareem

4:11 AM

@sbp My only response to section 12.1 is "hasn't that poor cat been through enough already?"

Secret

4:47 AM

iopscience.iop.org/article/10.3847/2041-8213/aaa5fb/meta

Now we can see extragalactic planets

It must be a false memory that I thought they are already known

iopscience.iop.org/article/10.3847/2041-8213/aa9fee/meta

It seems we have a lot of gravitational lending based observations recently

Fawad

5:20 AM

Hi. $C_P - C_V = nR$ or $C_P - C_V =\dfrac{R}{n}$ for $n$ moles of ideal gas ?

I am getting latter equation but one problem uses former equation

@johnRennie help

John Rennie

Suppose you had a huge amount of gas $n \to \infty$

The latter equation would claim $C_P - C_V \to 0$

Does that seem likely?

Fawad

Y E E

John Rennie

Really?

Fawad

Oh it doesn’t happen actually

But $C_p - c_v =p\dfrac{dv}{dT}$ [since PV=nRT $=>$ $PdV=nRdT$ or $P\dfrac{dV}{dT}=nR$] and we get $C_p - C_v=nR$ no?

John Rennie

Strictly speaking $C_P$ and $C_V$ are the molar specific heats, so they are constants. But you are obviously using them for the total specific heat.

Suppose we use lowercase $c$ for the total specific heat i.e. $c_P = n C_P$.

Then if we start with the molar specific heat expression:

$$ C_P - C_V =R $$

And multiply through by $n$ we are going to get:

$$ nC_P - nC_V = c_P - c_V = nR $$

Fawad

5:35 AM

9 mins ago, by John Rennie

Suppose you had a huge amount of gas $n \to \infty$

😬

John Rennie

I'm not sure I see what point you are making there

Fawad

Me dumb :/ sorry I was getting what you got @JohnRennie my book was using latter equation.

John Rennie

Ah OK, yes, for a fixed mass the number of moles is inversely proportional to the molecular weight.

But that's really poor notation by the book

0celo7

"Bliss, G. An Integral Inequality."

Very nice title

very informative

user228700

6:02 AM

@JohnRennie Ah, Physical Chemistry again, I see :-)

user228700

My exam tomorrow is on Spectroscopy.

John Rennie

6:13 AM

@KaumudiH Morning :-)

Spectroscopy is good fun! :-)

Bernardo Meurer

@JohnRennie Morning John!

John Rennie

@BernardoMeurer morning :-)

user228700

@JohnRennie Meh, it's alright :-)

John Rennie

What type of spectroscopy?

And what sort of problems do they ask?

Spectroscopy and QM are intimately linked. That's probably why I like it.

user228700

@JohnRennie Oh, it's mostly theory.

user228700

6:15 AM

UV-Visible, IR, and NMR.

John Rennie

QM in other words :-)

user228700

Hmm, but not much QM in my syllabus.

0celo7

@KaumudiH I will teach you QM

user228700

Now? Nah, thanks.

Anonymous

@JohnRennie I don't think any undergraduate engineering chemistry course would teach spectroscopy backed up by QM. :p They just provide a general encyclopedia type overview of spectroscopy.

John Rennie

6:20 AM

@KaumudiH I can just feel the enthusiasm there :-)

Anonymous

@0celo7 Teach me GR someday

user228700

@JohnRennie Right?! :-)

Anonymous

I know nothing of it

John Rennie

@Blue Oh well. That's a shame.

0celo7

@Blue I am writing notes on black holes (slowly)

I'm getting money to be an expert on them...

Anonymous

6:21 AM

@0celo7 Cool stuff

0celo7

it involves too much measure theory

John Rennie

@Blue I suspect you'd find GR simpler than you expected.

I guess it depends on how deeply you want to learn differential geometry.

0celo7

@JohnRennie you never understand anything I say when I talk GR :P

John Rennie

That's because I never learned differential geometry deeply :-)

Anonymous

I have started learning a bit of differential geometry and topology with Balarka's help. Let's see, perhaps next year I'll be capable of learning GR properly

Anonymous

6:24 AM

@JohnRennie That's some hope there :P

0celo7

@Blue you should read my thesis

John Rennie

@Blue If you just want a basic understanding of how to play with metrics (which is basically all I know) then it's startlingly simple.

Anonymous

@JohnRennie Well, teach me sometime then! I'll ping you during the next weekend if you're okay with it :D (I mean little bit by bit every weekend would be good enough I think)

Anonymous

Slereah suggested me some book for GR. I forgot the name

0celo7

Carroll?

Hmm, I reference Lemma 1.2 in my thesis, but there is no such thing

Can I add "to edit" things in TeX?

I don't want to deal with this now

John Rennie

6:29 AM

@Blue Saturday will be fine. I'm at my Mum's this week and will be driving home on Sunday so I won't be around.

Anonymous

@JohnRennie Yay! I'm excited :)

Anonymous

@0celo7 It was some undergraduate Springer book

0celo7

oh, Carothers?

or is that a real analysis book

idk, I say just read Wald

Anonymous

I'll get the pdfs of all of them and see which suits me. :P

0celo7

I would not recommend Hawking-Ellis, Straumann, Choquet-Bruhat, or O'Neill

Anonymous

6:33 AM

Oh ACM suggested Zee

0celo7

@Blue go for Sachs and Wu and if you can read it you're Tao 2

@Blue what is this madness

@ACuriousMind defend yourself

Anonymous

@0celo7 lel...let's see

0celo7

I like Zee a lot

one of the best books of all time

Anonymous

Oct 7 '17 at 11:27, by ACuriousMind

@JesterTran If you have no problem with hand-waving, Zee's GR in a nutshell is supposed to be pretty good

0celo7

it's very handwavey and also long af

John Rennie

6:35 AM

@Blue there's a big difference between learning GR properly and just getting familiar enough with it to understand how it works (the latter is what I have done). The GR books will teach it properly so they will be hard work.

0celo7

long books are demotivating

Anonymous

@JohnRennie I hope the latter will motivate me enough to pursue the former path. So win-win either way :)

Anonymous

I generally like getting a broad overview before diving into the subject

0celo7

arxiv.org/abs/1004.1016

Anonymous

I should really get back to studying semiconductors for my class tomorrow :/ See you all

Secret

6:42 AM

Jan 17 at 12:44, by Secret

NB. Still find SR and GR less intuitive than quantum mechanics

The very notion of how far things are is changing

which makes it very difficult for me to parametrise the suject into some parameter space

user228700

7:09 AM

@JohnR: You around?

John Rennie

Yes, what's up?

user228700

Correct me if I'm wrong, OK?

John Rennie

OK ...

user228700

Given a system of forces acting upon a rigid body, one cannot simply slide these vectors around parallel to their line of action without affecting the overall effect that the system would otherwise have had on the body.

Bernardo Meurer

@JohnRennie Did you look at the bit of code I posted here a few days ago?

From K&R

@KaumudiH That sounds correct to me, that you can't do that

John Rennie

7:12 AM

Yes, because when you move the force (normal to its direction) you change the torque it exerts of the object.

user228700

Right, right. Wokay, that's all! :-)

John Rennie

@BernardoMeurer link?

Bernardo Meurer

char *s;
while (--argc > 0 && (*++argv)[0] == '-')
    for(s = argv[0]+1; *s != '\0'; s++)
        switch(*s) {
            case 'x':
                /* Set appropriate flags for 'x' option */
                break;
            case 'n':
                /* Set appropriate flags for 'n' option */
                break;
            default:
                printf("Illegal option %c\n", *s);
                argc = 0;
                break;
        }
if( argc != 1)
    printf("Usage: find -x -n pattern\n");

@JohnRennie Look at it

Look at how absolutely fucking amazing it is

( analysis of that snippet )

Secret

for some reason I rarely found the need to use switch

John Rennie

@BernardoMeurer Yes, it's possible to write some really slick and compact code in C :-)

Bernardo Meurer

7:16 AM

@JohnRennie I was completely blown away by that code

So clear and efficient

So, so beautiful

John Rennie

Though in C compactness tends to come at the cost of readability.

To be fair, once the code has been compiled it doesn't make much difference what the source looked like.

Bernardo Meurer

That is true, but my point here John is exactly how amazingly readable it is

It's super easy to understand code

Maybe I'm just spoiled because I know C and for others it's cryptic?

John Rennie

7:33 AM

When you do enough C you get into the C frame of mind and it becomes intuitive.

Bernardo Meurer

@JohnRennie Quick english question

John Rennie

Yes?

Bernardo Meurer

"Who came first, the chicken or the egg?"
"Who X first, Y or Z?"

One would say those sentences are lexically or syntactically equivalent?

Or semantically

I forget the term I want

John Rennie

brb ...

Bernardo Meurer

Lol

user228700

7:39 AM

@JohnR: Oh, BTW, my friends at the Men's Hostel got their Freshers' at long last!

John Rennie

Freshers?

user228700

Yes, it is the official rite of passage for all men staying at the hostel.

John Rennie

@BernardoMeurer back now. I'm at my brother's house and he was asking me about Excel :-)

user228700

They are ragged endlessly for several months on end, towards the end of which they are even beaten brutally.

Bernardo Meurer

@JohnRennie Ask him about my question! :P

John Rennie

7:45 AM

@KaumudiH I'd be a bit cautious about believing anything that young men say ...

user228700

Then, they are allowed to beat them back for about 10 minutes come Freshers' night.

user228700

@JohnRennie Erm, no, I'm 100% certain that this is exactly what happens.

John Rennie

In the UK beating brutally would mean putting that person in hospital!

user228700

No, not to that end here.

John Rennie

As in inflicting serious injury

user228700

7:47 AM

No serious injuries, no. Only tight slaps on the face/back.

John Rennie

@BernardoMeurer I guess those two sentences are the same

Bernardo Meurer

Well, they aren't the same though

There is some equivalence between them

I'm not sure which

John Rennie

Though for chickens and eggs you should use which not who

Bernardo Meurer

I think I'll call them products of the same lexico-semantical parametric form

It's not like I'm writing this for anyone to understand anyway

John Rennie

If you say so :-)

user228700

7:48 AM

Anyway, now that the event is over, they've become best friends with the seniors, and I cannot put in words just how jealous I am.

Anonymous

@KaumudiH Wut...(You make it sound too dramatic!)

John Rennie

Sounds like a fairly typical male bonding ritual to me

user228700

@JohnRennie Yep, fairly typical.

John Rennie

Proof that you're worthy to join the brotherhood :-)

user228700

:-)

John Rennie

7:50 AM

In a way I sympathise. I think being male sometimes your good sense even when you're not young and impetuous.

Bernardo Meurer

@JohnRennie What would you call the chicken question? A Puzzle?

Just a question>

Oh it's a causality dillemma

John Rennie

It seems to me one of the fundamental differences between the sexes that men will instinctively form bands of brothers and swear eternal loyalty, while women don't form the equivalent sisterhoods.

@BernardoMeurer Well, it's a paradox, because it has no answer.

Bernardo Meurer

Nah, the egg came first

GG no RE

user228700

@JohnRennie Which is the biggest bummer of all.

John Rennie

@BernardoMeurer Then what laid the egg?

user228700

7:53 AM

It has always been a deep sorrow of mine.

Bernardo Meurer

@JohnRennie Something that wasn't quite a chicken

But almost

and that was the first real chicken

And from then onwards

It's like who laid the first human egg

A monkey

Then his baby was a human

And from then onwards all the eggs were human eggs

John Rennie

But where do you draw the line between the chicken in the egg and its evolutionary ancestor?

Bernardo Meurer

@JohnRennie That's a question for biology taxonomists

John Rennie

Which change in the DNA caused the bifurcation of the two species?

Bernardo Meurer

Yes

John Rennie

7:55 AM

The point being that all such distinctions are artificial

Bernardo Meurer

What a chicken "is" is a purely artificial taxonomical decision

Someone decided what's a chicken and that's that

Sure, but that's always the case

taxonomies are always artificial

John Rennie

You can draw lines wherever you want, but they don't necessarily mean anything, or not anything useful.

Bernardo Meurer

I agree with you, although the art is in drawing the line where they are useful

John Rennie

@KaumudiH you can be an honorary man here :-) Join our brotherhood.

OK, it's a brotherhood of nerds, but you can't have everything :-)

Bernardo Meurer

i.e. we taxonomize the animal kingdom in Animals, Plants, Fungi, and whatever else because it's useful

user228700

7:57 AM

@JohnRennie :-) <3

Bernardo Meurer

We could just call them all Bob

John Rennie

Meh, taxonomists have too much free time.

Bernardo Meurer

But that doesn't help anyone

Maybe it would help the bobs out there

John Rennie

I was going to create a classification scheme for taxonomists but couldn't decide where to draw the lines between them

Bernardo Meurer

Lol

user228700

8:01 AM

@JohnRennie Why dyou think this is?

John Rennie

@KaumudiH it beats me. Humans are just weird. I don't understand them at all.

user228700

:-)

Anonymous

@KaumudiH That's not even true. From my experience it's always the girls sticking together, all the time.

Anonymous

I mean c'mon. They even form groups to go to the washroom

John Rennie

At least with computers you have a pretty good idea of what they're going to do and why.

user228700

8:02 AM

@Blue I disagree. From my experiences of having been a girl for 18+ years, I can guarantee that it is completely true.

Anonymous

I knew we live in different universes :P

user228700

Sure, girls may form packs, but they can hardly be termed a sisterhood.

user228700

@Blue :-) No, see, there is a difference between the two.

John Rennie

@Blue Men are like dogs, they instintively form packs, and once they've sorted out the hierarchy they're all happy.

Women are like cats. They are superficially social, but given the chance will sink their claws into each other.

Anonymous

@JohnRennie lol...that's some outright insult there XD

John Rennie

8:04 AM

(more from John's pithy summaries of the human race on request)

user228700

Well, that's not always true, many women are genuinely nice towards other women (#GirlLove).

John Rennie

@Blue I'm a trained observational scientist. I see these things :-)

user228700

But it's true, what John says about brotherhoods:

user228700

13 mins ago, by John Rennie

It seems to me one of the fundamental differences between the sexes that men will instinctively form bands of brothers and swear eternal loyalty, while women don't form the equivalent sisterhoods.

user228700

They do swear eternal loyalty. Unconditionally, too.

Anonymous

8:06 AM

I haven't experienced life-long brotherhood in real life (rather intentionally kept away from making social bonds). So no comments XD

John Rennie

@KaumudiH And there's nothing even remotely homoerotic about. Honestly, there isn't!

user228700

Lol. While a discussion such as this is incredibly susceptible to attacks by feminists, sadly, the facts are all true. Women do take much, much longer to swear loyalty, etc.

user228700

My friends from the Men's Hostel, we've formed a "brotherhood" of sorts but I can't hang out with them as often as I'd like.

John Rennie

Men have a tendency to put women into certain categories. One of those categories is little sister, and of course they are fiercely protective of their little sisters.

user228700

:-) While that dynamic exists, they consider me an equal, too, to be clear.

user228700

8:13 AM

Anyway, my point is that my social life continues to suck hell, despite these friendships.

John Rennie

Speaking as someone old and wise - well, old ...

user228700

:-) Yeah?

Anonymous

@KaumudiH Or maybe they just consider you to be a tomboy :P

John Rennie

The secret to getting along with groups is not to expect too much of them.

user228700

@JohnRennie I know, I've realized this.

user228700

8:15 AM

@Blue That, too. It's not an either/or situation.

John Rennie

Smile and nod, and keep your views of what they think to yourself :-)

user228700

:-)

Secret

I can be superficially social, and alternate betweeen introvert and extrovert personalities because I am a strict ambivert. When it comes to males, I generally found them trustworthy, but I rarely have strong interest in caring deeply about them. Meanwhile for females, similar to the sisterhood cases, it take me a very long time (at least 3 years) to swear loyalty to them as I have at least 20 past case of being backstabbed by bad females in uni and back in high school (while

for the case of males, the charming bastards are usually quite obvious)

Anonymous

@Secret Backstabbed? Like?

Secret

(Did I used the wrong word?) Acting very friendly, but only as a means to have me taught them to help their grades, and once the exam is over, act as if we never knew each other

and I also have one case who were invited to my home and then stole one of my notebooks

I guess, the better word is betrayal ...?

As for the males, the really serious cases are the high school bullyings and one guy back in primary stealing one of my memo booklets and dumping my homework to the bin from the submission pile

There are no known serious incidents of me with males after the high school period

Anonymous

8:31 AM

@Secret That I don't think is called back-stabbing. For example, I don't ever feel like starting a conversation with people in real life even if talked to them several times before (unless they were genuinely interesting). If they initiate the conversation I might talk for a while. But if they did help me with my grades or homework, I'd surely say a "hi" and smile when I meet them.

Anonymous

What you're speaking of is more like ingratitude

Secret

Ah I see, it does sounds more make sense

Anonymous

That is quite common. Which is why I hardly ever spend my time helping people with their work.

Anonymous

@Secret Thief. Those are rare cases

Dawood ibn Kareem

@KaumudiH I think everyone acknowledges that women interact differently from men.

I don't find anything sexist in such an acknowledgement so long as one is aware it's a generalisation.

I guess the thing to do is to stop needing loyalty. Then when you get it, it can be overwhelmingly reassuring.

Anonymous

8:38 AM

@DawoodibnKareem Exactly what I recommend.

Secret

Ah, I found something from my notebooks:

> Someone back in primary: Betrayal as she joined the isolation group after I helped her out of her isolation due to her habit of picking her nose

To elaborate: This classmate of mine was being isolated due to nose picking habit. I then helped her to be accepted again by the class. Later on next year, she was one of the members that does the social isolation on me

but yeah, according to all the other entries in the notebook, I think all the other 32 cases are just ingratitude

John Rennie

If you keep notes on the various ways people have betrayed you then I think you should spend some time looking into the mirror.

Secret

lol indeed, I was a hot tempered person back before my uni days

as well being a whiner

Dawood ibn Kareem

8:55 AM

Does your notebook list any of the people in this room?

Secret

nope, just real life

Anonymous

Secret's diaries would surely be very valuable to psychology researchers. :D

Anonymous

I mean, really, his analysis is quite thorough most of the times.

Dawood ibn Kareem

@Blue Do we know he's a he?

Anonymous

@DawoodibnKareem Yeah. He mentioned once if I'm not mistaken (?)

Anonymous

8:58 AM

Dec 26 '17 at 7:19, by Secret

@JohnRennie My 13 year old self is a boy, my mature self is a girl. I am currently somewhere in between

Anonymous

Actually ^

Dawood ibn Kareem

Yes, I was reading the comments, thinking they sounded more female than male, but I couldn't be sure.

Shing

I am reading A Course in "Mathematics for Students of Physics I" by Bamberg and Sternberg.

it is a bit confusing

say, it define vectors as "operation"

Dawood ibn Kareem

Aha, the famous brothers Bam and Stern.

Shing

that moves points in an affine space

Anonymous

9:00 AM

@Shing I saw that book. Not really a big fan of it

Dawood ibn Kareem

Yes, that's a bit confusing but it's a perfectly sound definition.

I wouldn't have thought of it as "for students of Physics I" though.

Anonymous

I mean that is the physics definition of vectors.

Anonymous

In math you don't normally consider affine spaces while defining vectors

Dawood ibn Kareem

The problem is that if you don't already have a workable idea in your head of what a vector is, it's hard to form a workable idea of what an affine space is. So to define the former in terms of the latter may be mathematically rigorous, but it's hardly pedagogically useful.

Anonymous

54

Q: What are differences between affine space and vector space?

I know smilar questions have been asked and I have looked at them but none of them seems to have satisfactory answer. I am reading the book a course in mathematics for student of physics vol. 1 by Paul Bamberg and Shlomo Sternberg. In Chapter 1 authors define affine space and writes: The spac...

linear-algebra affine-geometry

Shing

9:07 AM

I am a bit lost in 1.3, it introduces the idea "affine coordinate function", not sure if I get it right: "affine coordinate function" maps points (represents real physics quantities, time) in affine space to vector space, such that we can do calculation with it.

Anonymous

@Shing Sounds fine. What's the problem?

Shing

@Blue my problem is I am not so sure if I understand the author exactly?

Am I right about the idea of "affine coordinate function"?

Anonymous

It's a map from an affine space to a vector space. That is okay. I didn't understand what you meant by maps "physical quantities".

Shing

The authors said a lot things like :

I am not so sure what he means

Anonymous

@Shing Ah okay, they are talking about this: "https://en.wikipedia.org/wiki/Affine_coordinate_system"

Anonymous

9:14 AM

Affine coordinate system

In mathematics, an affine coordinate system is a coordinate system on an affine space where each coordinate is an affine map to the number line. In other words, it is an injective affine map from an affine space A to the coordinate space Kn, where K is the field of scalars, for example, the real numbers R. The most important case of affine coordinates in Euclidean spaces is the real-valued Cartesian coordinate system. Orthogonal affine coordinate systems are rectangular, and others are referred to as oblique. A system of n coordinates on n-dimensional space is defined by a (n+1)-tuple (O, R1, ...

Dawood ibn Kareem

What that means is - a point in space might be something like "the summit of Mt Everest" (ignoring stuff like the fact that the earth moves); or a moment in time might be something like "when Neil Armstrong first stepped on the moon". It's kind of hard to do mathematics with expressions like that, so you need a way of turning those things into something a bit more numerical - such as a triplet of latitude, longitude and altitude; or a number of milliseconds since a well-defined time.

(Again ignoring relativity and stuff).

Anonymous

@DawoodibnKareem Exactly. Map them to scalars

Dawood ibn Kareem

So coming back to our object moving a line - say it's a train travelling along a track. Before you can write a formula for the train's motion, you need to decide how you'll measure the train's position and time - that is, what would $x$ and $t$ actually mean in such a formula. Making that decision is providing an affine coordinate function.

Shing

@DawoodibnKareem now it is much clearer to me, thanks for the explaining!

Anonymous

BTW "affine coordinate function" isn't really a standard term.

Anonymous

9:20 AM

Or at least I don't think so.

Shing

so points in affine space directly represent real world objects?

@Blue what is the standard term?

Anonymous

@Shing I don't think there is one. Most sources would just call it an affine map to scalars.

Shing

I see

CooperCape

9:34 AM

@0celo7 Shalom, then.

Anonymous

@CooperCape You're Jewish?

CooperCape

No, Ocelo thinks I have some sort of deep hatred for Jews...

Anonymous

Lol. Why would he think so

CooperCape

Exampled here:

12 hours ago, by 0celo7

@CooperCape why do you hate my people

Uhhh I may have called him something (as a joke) that I got banned for

CooperCape

10:22 AM

I've just seen a Rennie post so old it contains the words "Higgs boson that...will be found..."

Madd

Bernardo Meurer

@CooperCape Link?

CooperCape

21

Q: How does the Higgs Boson gain mass itself?

If the Higgs field gives mass to particles, and the Higgs boson itself has mass, does this mean there is some kind of self-interaction? Also, does the Higgs Boson have zero rest mass and so move at light-speed?

mass higgs faq

Damn

That post was like 10 days before it was found

Bernardo Meurer

Heh

@BalarkaSen Do you want to read a small set of points I just wrote about Technology and Culture?

Balarka Sen

Very much. Send it to me

Bernardo Meurer

@BalarkaSen It's for an essay I have to write still, so it's just a bunch of loose points right now. Just as a bit of base you might want to read on The Myth of Theuth and the book that inspires the essay

Sending the notes to you

Sent :)

Balarka Sen

10:30 AM

Received.

What's the right way to read an .md file? Open it in text reader?

Anonymous

Notepad or Wordpad will work fine

Balarka Sen

mmk

Slereah

morning

Bernardo Meurer

@BalarkaSen it's just a text file, I just name it .md because I write in commonmark always

Balarka Sen

Right, I figured it opens as a text file, just wanted to know if that's the best thing

@BernardoMeurer It's an interesting argument but I can immediately think up serious counterarguments to 1.2.

Bernardo Meurer

10:37 AM

@BalarkaSen This might be good dillinger.io

Balarka Sen

I like it though. I don't think it's entirely true but I like it.

Bernardo Meurer

@BalarkaSen I am like dying and have to go to bed, but if you manage to articulate counters I'd be really interested so I can try and patch the argument

:*

::dies::

Balarka Sen

I have to spend time parsing one, of course. I'll write one for you once I read through it

@BernardoMeurer This is nice. I use stackedit.io for quick markdown writeups but this is really good

Bernardo Meurer

I use VScode on the desktop, but dillinger wherever I don't have my editor setup, it works amazingly well

Slereah

11:06 AM

"Fiber sum operation on fiber bundles or more generally fiber connected summing of manifolds along their submanifolds is a well known technique to obtain new fiber bundles and manifolds out of given ones"

Well known from where >:|

I don't really care about connected sums of fiber bundles but it's the closest I can find to the gluing of fiber bundes