The h Bar

2:45 AM

@tpg2114 Are you familiar with Tyler Vigen's Spurious Correlations site? Here's a typical example of the graphs on the site:

skullpatrol

3:41 AM

Omg @PM2Ring that definitely falls under the category of superstition enhancement

Thanks for sharing, I think?

:-)

PM 2Ring

4:03 AM

@skullpatrol :)

Beware of using an iPhone while on stairs: tylervigen.com/view_correlation?id=28669

skullpatrol

I love this analogy of "humans are like hardware, while culture is like software", considering that psychology says we are "hard wired" for somethings.

abhas_RewCie

4:26 AM

@PM2Ring This is crazy!

John Rennie

4:38 AM

Though some of their correlations seem suspiciously plausible :-)

Yuvraj

@JohnRennie @PM2Ring @abhas_RewCie hi

morning

PM 2Ring

There are also some good anti-correlations, too. That is, as one graph goes up, the other goes down.

John Rennie

@Yuvraj hi :-)

PM 2Ring

Hi, @Yuvraj. I like your new avatar image. It reminds me of Boltzmann brains. I don't know if that's a good thing or a bad thing. ;)

abhas_RewCie

@Yuvraj hi bhai :-)

Yuvraj

4:51 AM

actually, I was reading about science books , where I see einstein was not happy with qm and its theory

abhas_RewCie

@PM2Ring Is that related to AI?

@Yuvraj He believed that Quantum Mechanics was not a complete theory, or $\psi$ doesn't represents full information of a state.

It needed an additional parameter $\lambda$ to represent full state called hidden variable

But, soon, he was proved wrong on theoretical grounds using Bell's Inequality

God does play Dice - Stephen Hawking

skullpatrol

but, not slot machines

Yuvraj

i.stack.imgur.com/bzUqC.jpg?s=48&g=1

even though he was the one who wrote first letter on qm @JohnRennie @PM2Ring

PM 2Ring

I see we have a very prolific new contributor on the site. He's posted 81 answers in the last 2 or 3 days, mostly to old questions. Many of them don't add any new info not covered by the existing answers. But they're ok, I guess. I think I downvoted 1 of them for misinformation.

abhas_RewCie

@Yuvraj That's the original paper why he was unhappy

Yuvraj

4:57 AM

i believe that he was looking for a bigger theory , which will include all kind of forces .

abhas_RewCie

@Yuvraj ...?

skullpatrol

@abhas_RewCie Even Feynman was known to play dice pal

abhas_RewCie

forces?

@skullpatrol lol

Yuvraj

yes

abhas_RewCie

@Yuvraj No, his argument didn't had any description of forces.

It was violation of Heisenberg's UCP

Yuvraj

4:59 AM

remember he was doing research on a theory whch is unifying theory fro all kind of forces $$forces$$

abhas_RewCie

Entangle 2 quantum states, keep them infinite apart, then measurement on one, affects the other... That's it, it has nothing to do with forces

PM 2Ring

@Yuvraj Indeed. And he got his Nobel prize for the photoelectric effect, a QM topic, not for relativity. But I can understand him being unhappy with the direction that QM took. Einstein's like a father who's child ends up in a career that the father doesn't approve of.

abhas_RewCie

@Yuvraj Ah, yes, Forces in Relativity, yes

he was unifying all forces.

Yuvraj

even the electromagnetic forces

abhas_RewCie

all forces

but he wasn't successful

skullpatrol

5:01 AM

Forces belong to Newton

abhas_RewCie

yep :-)

well said

Yuvraj

@PM2Ring indeed he was able to prove the maxwell em can behave as particle called quanta

PM 2Ring

And while Einstein was trying to unify forces, the experimentalists kept discovering evidence of new forces, the nuclear forces, whose behaviour is more complicated than electromagnetism.

Yuvraj

@abhas_RewCiev correct ,So, Einstein tried to develop a unified theory that would circumvent what he saw as quantum mechanics' flaws.

abhas_RewCie

Is gravity gauge invarient?

@Yuvraj QM has nothing to do with general relativity, both lie on different assumptions...

Yuvraj

5:05 AM

Was Einstein's view deterministic, vis-a-vis the,"new",probabilistic view? That is,...was his perception and reasoning from previous centuries,where he found the flaw in classical mechanics versus the new, "uncertain", view of maybe or Probably?

abhas_RewCie

@Yuvraj I guess I don't understand your question.

Whatever Einstein did, was on Theoretical Grounds...

PM 2Ring

Yes, he believed that the true laws of physics are ultimately deterministic. That's what he meant by "God does not play dice".

abhas_RewCie

Yap...

Yuvraj

hey@abhas_RewCie bro,

abhas_RewCie

Does God Play Dice? - Dr. Ian Stewart

hey

Yuvraj

5:09 AM

robability existing in quantum theories occurs from the fact that we can’t measure the quantum realm very well. If you had the means to measure something perfectly, you could predict any outcome. A coin toss is not 50/50,

it just appears that way based on variables. If you can predict and measure the variables - you can then foresee an exact outcome. Einstein was right to have a sort of distaste towards QM, but he was also wrong to not do anything about it. You can’t blame him though. We’re all just cumulative products of external forces.

@PM2Ring @abhas_RewCie @JohnRennie

abhas_RewCie

@Yuvraj When I say he was wrong, I mean, Bell, J's paper.

@Yuvraj Here's the paper

PM 2Ring

Einstein didn't really achieve very much after developing general relativity. But he was a science rockstar, and the public expected him to produce more miracles. Instead, he spent the last several decades of his life on his attempt at unification. At least that kept him from causing too much disruption in the world of QM, apart from the Einstein, Podolsky, Rosen stuff. ;)

abhas_RewCie

If you read it, then you will understand that Probability Distribution can't be made arbitrary small as we think (for some certain measurement), that violates the assumption of QM (Born Postulate)

Yuvraj

ok let us discuss

John Rennie

QM is a mathematical model, and as a mathematical model it works exceedingly well i.e. no deviation from the Standard Model has ever been found and some of its predicitions have been tested to extreme accuracy.

The question is whether the mathematical model really describes the world.

The problem is that this is a somewhat meaningless question since no-one knows what the real world is anyway.

abhas_RewCie

5:17 AM

Yes^

John Rennie

Einstein believed that some of the concepts in QM seemed so strange they could not possible describe the real world (whatever the real world is). But he could provide no argument for this except his gut feeling, and gut feelings are not physics.

The bottom line is that QM works.

abhas_RewCie

@JohnRennie EPR Paradox is one of them which he successfully said...

QM is not meant to dig deeper, just upto required level is ok....

Yuvraj

@JohnRennie agree sir

abhas_RewCie

I mean quantum noise.

John Rennie

@abhas_RewCie It's not a paradox. He pointed out that entangled systems apparently have superluminal communication going on, but that isn't true. There is no superluminal communication.

abhas_RewCie

5:20 AM

@JohnRennie The superposition which he was talking about was entanglement and it exists (I guess)...

John Rennie

Entanglement involves some non-locality, though that term means different things in different contexts. It does not mean anything travels faster than light.

abhas_RewCie

superposition is : $\Psi = \sum_i c_i \psi_i$

I guess... It's assumed.

22 mins ago, by abhas_RewCie

Entangle 2 quantum states, keep them infinite apart, then measurement on one, affects the other... That's it, it has nothing to do with forces

^That's what I understood from his argument.

John Rennie

> then measurement on one, affects the other

Measurement of one affects what we will measure when we measure the other. However this doesn't mean one part of the entangled system affects the other at a faster than light speed.

abhas_RewCie

Yep, even if they are infinite apart, that's what the paradox states, which shouldn't happen (according to Einstein), but experiments have confirmed those spooky action....

@JohnRennie speed of light thing, requires QFT.

QM wasn't based on Relativistic assumptions.

PM 2Ring

@abhas_RewCie No, that's not quite right. If you have a pair of entangled electrons you do not have 2 entangled states. You have one state that contains 2 electrons. That's kind of the whole point. When you do a measurement on the state, you affect the state. It's simply not correct to say that measuring 1 electron affects the other electron. The state ensures that measurements of its electrons are correlated, but that doesn't mean that one electron affects the other.

abhas_RewCie

5:27 AM

@PM2Ring Ah, yes, that's the problem in the language part.

$\psi = ae^{\psi(x_2)}\psi(x_1)$

They are same statefunctions.

not different.

^That's an example

PM 2Ring

@abhas_RewCie And different interpretations of QM express the mathematics in different language, so there isn't a clear and unambiguous way to talk about this stuff. ;)

abhas_RewCie

lol... interpretations are something different, let's not talk about that.

If we know how to entangle things, then. it's possible to entangle everything in the universe to a single atom and a single measurement on one such atom gives every quantum information about universe :P

^Agree or not? XD

PM 2Ring

@abhas_RewCie Not. Entangled states tend to be very fragile. So good luck trying to entangle everything without cooling the whole universe to near absolute zero. ;)

John Rennie

@abhas_RewCie with a complex system the entanglement gets destroyed by a process called decoherence. Maintaining entanglement is one of the big problems with trying to build quantum computers.

abhas_RewCie

Oh okay...

I've heard that bringing the temperature very lose to 10-20K reduces the chances of Decoherence...

But yes, it's complex.... Let's see what time has to offer here, can we entangle complex things in future? Let's see...

PM 2Ring

5:41 AM

Besides, HUP limits what information you can extract from a quantum state.

abhas_RewCie

Only those which can be extracted :P

PM 2Ring

Vast amounts of stuff in the universe is colder than 20 K. But that stuff's pretty boring: interstellar gas. Most of the rest of the (normal) matter in the universe is inside stars, where the temperature is quite a bit hotter. :)

abhas_RewCie

Vast amount of universe is plasma, it's not cold tho...

WOOOHA! IIT KGP Campus looks haven from inside!

What Netflix series you all are watching?

perilousGourd

6:23 AM

https://physics.stackexchange.com/questions/337885/variational-principle-how-to-solve-for-geodesic

In this question, what does it mean to write the geodesic equation 'for' $r$ as opposed to another variable, e.g. $\theta$ or $\phi$?

abhas_RewCie

@perilousGourd what?

this? $ds^2=-dt^2+e^{2\Psi}dr^2+r^2(d\theta^2+\sin^2(\theta)d\phi^2)$

perilousGourd

That's just the metric, right?

I mean when the OP says 'I want to use this to write the geodesic equation for r with respect to λ.'

What does it mean to write a geodesic equation for one of the variables in particular?

abhas_RewCie

$\lambda$ is just arbitary parameter, just for variation and ^ is derived after variation...

perilousGourd

The geodesic equations in the answer has no $r$ variable

abhas_RewCie

It has..

$$S= \int d\lambda \, \sqrt{g_{\mu\nu}\frac{dx^\mu}{d\lambda}\frac{dx^\nu}{d\lambda}}.$$

You mean that^

perilousGourd

6:30 AM

Oh right!! Via the Christoffel symbols

abhas_RewCie

$$\frac{d^2 x^\mu}{ds^2} = -\Gamma^\mu_{\alpha\beta}\frac{dx^\alpha}{d\lambda}\frac{dx^\beta}{d\lambda}.$$

perilousGourd

That's the action?

Yes, this last one

I didn't realize the Christoffel symbols had $r$ in them

abhas_RewCie

^That's just tonsorial notation for $$ds^2 = dt^2 - e^{2\Psi(r)} dr^2-r^2\left(d\theta^2 + \sin^2 \theta \, d\phi^2\right)$$

Just solve that equation^ you'll reach $ds^2$ equation.

perilousGourd

Still, they also have $\phi$ and $\psi$, so how is that a geodesic equation written for $r$ specifically?

abhas_RewCie

@perilousGourd He has not solved for $\psi$

John Rennie

6:32 AM

> tonsorial notation

abhas_RewCie

lol

John Rennie

Tonsorial refers to haircuts doesn't it? :-)

abhas_RewCie

sorry, tensorial notation

typo XD

perilousGourd

:O I had no idea tonsorial was actually a word

abhas_RewCie

XD

perilousGourd

6:33 AM

'tonsor is an archaic word for barber'; awesome

abhas_RewCie

editing time's up

archaic means old ones na?

perilousGourd

@abhas_RewCie So he did solve for $r$? Or is that the form prior to solving for anything?

abhas_RewCie

@perilousGourd prior

perilousGourd

@abhas_RewCie So would the geodesic equation for $r$ be this one, but rearranged for $r$?

abhas_RewCie

@perilousGourd what? what that means?

rearranged? what?

perilousGourd

6:36 AM

$r = ...$

abhas_RewCie

didn't get it....

@perilousGourd no,

it should be $ds^2 = \dots$

It's flat locally, but globally curved

perilousGourd

How is that a geodesic equation 'written for $r$'? Would it look different if it was 'written for $\phi$'?

John Rennie

@perilousGourd the geodesic equation is:

$$ \frac{d^2 x^i}{d\tau^2} = - \Gamma^i_{jk} \frac{dx^j}{d\tau}\frac{dx^k}{d\tau} $$

abhas_RewCie

yes, solve that^

John Rennie

The point of varying the line element is to derive this equation.

Are you thinking of the solution to the equation i.e. $r(t) = f(t)$ for some function $f$.

perilousGourd

6:42 AM

So $r$ is the thing that is varied to minimize th action?

the*

abhas_RewCie

@perilousGourd Ah, I think that I now understood your question. Yes, it can be solved for any variable for any coordinate system... You are free to define your own coordinate system and you can solve in terms of $r$ too in polar (if you choose). But, you'll get same results each time (tho equation will look different, because solution of differential equation works that way)

John Rennie

No. The geodesic minimises the length of the trajectory where we get the length from $\int ds$.

abhas_RewCie

@perilousGourd No, $\lambda$, we assume that tensor $x^\mu$ and $x^\nu$ depend on certain variable $\lambda$ and we vary that.

perilousGourd

Awesome; that's starting to make sense, re solving for any variable and coordinate system

abhas_RewCie

@perilousGourd exactly!

But, most of the books choose polar, because it's easy and there are certain coordinate system (Cartesian) where it can't be solved globally.

perilousGourd

6:46 AM

It is true that there has been no impact of writing the geodesic equation for $r$ specifically in that question or answer? (The part where writing it for $r$ would produce something that looks different to writing it for $\phi$, for example, has not yet occurred?)

Is it true*

abhas_RewCie

@perilousGourd I doubt what are you asking... Can you write an example..?

perilousGourd

I'm confused by the fact the question talks about 'writing the geodesic equation for $r$' and the variable $r$ seems to not have a privileged position in any of the equations or discussions that follow.

abhas_RewCie

OP is trying to write $r$ wrt $\lambda$

@perilousGourd Ah... I see OP is trying to do something even more daring...

perilousGourd

And $\lambda$ seems to have a privileged position: it is the variable parameterizing the geodesic in the equations, so that makes sense.

abhas_RewCie

@perilousGourd Yes, you put Christoffel symbol values, one at a time and get 7 equations, then you solve those 7 equations and get everything in terms of lambda

Beware, those 7 differential equations are simultaneous!

daring act!

perilousGourd

6:52 AM

That sounds not fun

abhas_RewCie

@perilousGourd see this tutorial

@perilousGourd totally not fun... These stunts are meant to be performed by the computers only, not humans

also that $\vec u. \vec u = -1$ is an assumption!

user434058

7:35 AM

@JMac Update: The flag was marked as "helpful". Nice!

Krishna

8:10 AM

@FakeMod How do I know if I have been flagged? Do I get a notification or something?

And, by the way, I thought you were inactive till Sep

user434058

8:30 AM

@Krishna You don't know.

user434058

@Krishna I am trying to be inactive :P

skullpatrol

actively inactive :P

Krishna

@FakeMod, Same here

But I've stopped answering

user434058

@skullpatrol lol

Krishna

Ok, bye.

skullpatrol

8:38 AM

cya pal

user434058

@Krishna I think I have pretty much convinced myself to stop any kind of participation. The effects will hopefully be visible within 6 to 8 hours...

B. Brekke

@ACuriousMind "For coupling constants << 1, it's clear that the lower-order terms are the relevant ones". After thinking for a bit this is not really clear to me after all. Is there some kind of simple argument to why this is true?

John Rennie

8:58 AM

@B.Brekke Yes, because the higher order diagrams give integrals that are proportional to higher orders of the coupling constant. So if the coupling constant is much less than one it's square, cube, etc will be much much less than one.

(Damn, I've mis-spelled it's and it's too late to edit the post)

skullpatrol

(~~it's~~ *its)

B. Brekke

@JohnRennie Yes, the value of the higher order terms will be exponentially supressed, but wouldn't there be factorially many of them? It seems to me that the factorial growth will "win" for any finite coupling constant

John Rennie

Hmm, I see your point. Nevertheless that fact remains that they don't.

Emilio Pisanty

9:43 AM

34

Q: Favorites are now known as Bookmarks

As mentioned previously, we are renaming the Favorites feature to Bookmarks. This allows us to both match how it's currently used more closely and communicate what to expect from it better. Some more background behind this: The name "favorites" can be interpreted as giving implicit approval of...

@Slereah eh, me too

but I still feel this should be [featured], though

ACuriousMind

10:04 AM

@B.Brekke The factorial growth eventually winning is precisely the reason the series is divergent.

The larger your coupling constant, the less terms you can rely on.

By "relevant" I meant that the low loop-order diagrams correspond to the low powers of the coupling constant, not that their contribution to the series is "largest" (which is a meaningless thing to say for a divergent series)

skullpatrol

11:20 AM

To be fair, my job at NASA was working on robots and didn't actually involve any orbital mechanics. The small positive slope over that period is because it turns out that if you hang around at NASA, you get in a lot of conversations about space.

Physics Meta

11:36 AM

2

Q: How has the current situation impacted traffic on this site?

Given the current situation, I was curious to see how the site is doing regarding traffic and activity. Are we seeing more traffic, or less? Is there anything that we should do in response to it?

discussion site-statistics

0

Q: Why have some of my question negative scoring even being correct and not correct or not answer the other questions?

Why have some of my question negative scoring even being correct and not correct or not answer the other questions? For example: Is entropy of the universe constant? I answer to the all the negative commentaries about people unknowing the topic, anyway, some of them even does not know what th...

discussion specific-question down-votes

Mad Spaces

12:07 PM

A Harmonic oscillator that is being operated by an external force has the following equation a solution for its differential equation
$x(t) = a \sin (\omega * t ) + b (\cos \omega * t)$
It is also said that one can get from this answer to the simplier and compacter form of
$A * \sin \omega * t + \phi $

How does one get there? can someone just guide me to the first step and i shall do the rest of calculation. Is it just straight triginometry or do you do something with the original differential equation?

JingleBells

12:30 PM

@skullpatrol I've played it once and u just put two engines at the butt and u click play and stuff start flying. mission successful

skullpatrol

I think they're trying to "gamify" understanding

it sounds nice in theory

but not everybody plays by the rules of "be nice"

just look at Amazon making billions of dollars off of the pandemic

but that's free enterprise for you

JingleBells

12:48 PM

@skullpatrol what r u talkin bout?

skullpatrol

The graph

JingleBells

ooookayyy

skullpatrol

Doesn't it say just play games and be smart?

Who needs education

JingleBells

@skullpatrol YES. I APPROVE

@skullpatrol I mean, I've played flappy bird and I'm pretty confident I can fly

skullpatrol

I said chat.stackexchange.com/transcript/message/54321141#54321141

JingleBells

12:54 PM

what are those stuff about amazon and enterprise... it's not in the graph, that confused me

skullpatrol

Google what Amazon is making on the world suffering in a pandemic

JingleBells

the guys r making some good bucks i know good for them

jeff bezos be like yeah

skullpatrol

25,000 die in two weeks in the US and he is "like yeah"

JingleBells

i'm relatively certain he didn't create the virus so what's the issue?

skullpatrol

Did I say he did?

JingleBells

12:59 PM

no, did I say u said he did?

skullpatrol

You said what is the issue if he didn't

JingleBells

okay

u seem to try to make bezos responsible for what's going on

skullpatrol

The free enterprise system is making him $25 000 000 000 on people dying

JingleBells

so? r u jealous?

skullpatrol

no, disgusted

that's all

JingleBells

1:05 PM

meh sounds like jealousy to me

skullpatrol

I wouldn't want to make money on people dying

JingleBells

the dude is just selling stuff and providing people with stuff

he is helping

plus what do u mean he is making money of people dying?

skullpatrol

I said the system is making him money.

JingleBells

the system is making him money of people dying okay, how?

skullpatrol

selling for a profit

JingleBells

1:14 PM

give me a concrete example. u r making too generalized sentences

skullpatrol

nvm

here @JingleBells

Just look at how big this thing can get, pal

JingleBells

1:30 PM

I see nothing about jeff bezos or amazon there

skullpatrol

He's just a business man running a business for a profit

I don't blame him.

JingleBells

alright, then what's the point u r trying to make cuz I'm a bit lost :P

skullpatrol

Look at the BIG PICTURE over the history of pandemics.

JingleBells

r u sure home isolation isn't playing a little trick on u cuz u seem obsessed over those viruses?

skullpatrol

perhaps

JingleBells

1:36 PM

it's quite hard to stay mentally afloat during those times, especially for extroverts

skullpatrol

yup

JingleBells

i personally fill my brain with all sorts of info, I develop stuff, code stuff but i don't let bad thought fill it up

anyways i'm not a therapist lol :D

skullpatrol

:D

JingleBells

do u happen to know some kind of mechanism like a wire roller that I can 3d print, something like this: (reference coming up)

How To Make Retractable Cables! Headphones, Microphones, USB, Anything!

►

I need something like this to 3d print where you can pull it to some distance and when you stop pulling, it locks at that location and then you have to unlock it by pulling it forwards and then backwards

it's a bit hard to explain

skullpatrol

I really like this answer from you, pal (reference coming up)

May 2 at 9:18, by JingleBells

Nvm I can google all questions

:-)

JingleBells

1:43 PM

cry everi tim

skullpatrol

I gotta get some sleep, cya pal.

JingleBells

cya, wish you all the best, all will pass :)

skullpatrol

:)

JingleBells

Does anyone know where I can find something like this to 3D print:

DIY - Fix a Retractable Sewing Tape Measure

►

nvm lol

i googled

it worked.

Madame Akira

2:00 PM

Mathpix snipping tool is good.
Select any image, get the LaTeX code.
Quantum Mechanics assignments made easy.
Found it today :-)

Dvij D.C.

2:11 PM

Is there a reason this question hasn't been closed?

32

Q: What is a Lorentz boost and how to calculate it?

I know very little special relativity. I never leaned it properly, but every time I read someone saying: "if you boost in the x-direction, you get such and such" my mind goes blank! I tried understanding it but always get stuck with articles that assume that the reader knows everything. So, wh...

special-relativity

user434058

2

user434058

@MadameAkira It also has some really awesome reviews :D

Dvij D.C.

I notice that it's an old question, 2012. Was the policy around homework questions different back then? My general impression has been that the policy turns stringent as you go back in time.

Madame Akira

@FakeMod oh
forgot to mention them. They are amazing. If you try to login with a fake mail it warns you for that too. Maddd

abhas_RewCie

@FakeMod lol.... XD Where you get such things!

user434058

2:15 PM

@abhas_RewCie go to their site, bro!

abhas_RewCie

@FakeMod hmm... k

Madame Akira

@abhas_RewCie it's review to a tool I mentioned earlier "mathpix"

abhas_RewCie

okay...

@FakeMod You were in 12th grade? right?

user434058

@abhas_RewCie I am

abhas_RewCie

@FakeMod Computer exam dates are out!

user434058

2:16 PM

@abhas_RewCie I chose PE ;)

abhas_RewCie

@FakeMod Exam over then?

Madame Akira

I had PE and CE as well. 6 subjects.

:'-(

user434058

@abhas_RewCie yup.

abhas_RewCie

CE?

Commerce?

user434058

6 hours ago, by FakeMod

@Krishna I think I have pretty much convinced myself to stop any kind of participation. The effects will hopefully be visible within 6 to 8 hours...

user434058

2:18 PM

Alright, now we have entered the 6-8 hour zone. Gotta leave...

Madame Akira

CS computer science basically C++

abhas_RewCie

Ah okay..., I've too.

Madame Akira

get an arihant module and score 85+ at least.

abhas_RewCie

hmmm....

Physics Meta

2:41 PM

-1

Q: Closed question appeal, improvement

Energy in a AA battery It's not a homework question, and seems very applicable to others. My question had very little to do with the math, and everything to do with the question, "could a single AA battery lift 10,000 pounds a whole foot?". I showed my logic, with a few simple calculations. Ho...

support

Emilio Pisanty

2:52 PM

yo, (closet) mathematicians from this room

I need a synonym for "construct"

(i.e. the mathematical thing you do when you do constructive existence theorems)

ideally several

I don't want to say "construct" five times in the same paragraph :-|

user7777777

@EmilioPisanty Even Google didn't turn up any synonyms for "construct" as a noun

Found this macmillandictionary.com/dictionary/british/construct_2

ACuriousMind

Synonyms for mathematicians' notions of 'constructing' something: "pull from the aether", "guess", "find through divine inspiration"

"The entrails of our augury birds have told us to now endow the set $S$ with an equivalence relation as follows..."

Emilio Pisanty

@ACuriousMind I mean... yes, that is what I did... but no, that's not something I can cop to in written form ...

ACuriousMind

"After the third microdose of LSD it was revealed to the authors that the following ansatz solves this differential equation..."

Emilio Pisanty

I want to report on an abstract "We construct several objects of class X. Specifically, we construct an X-x-ion by doing A and then B. We also construct an X-y-ion by doing C and then D." (and so on)

I don't want to completely choke that paragraph with alliteration

ACuriousMind

3:03 PM

I think you could "obtain" or something similar there

Emilio Pisanty

gneh

doesn't really fit.

ACuriousMind

Or you could "present" the examples

John Rennie

> We construct several objects of class X. Specifically, we construct an X-x-ion by doing A and then B, and an X-y-ion by doing C and then D.

JingleBells

3:29 PM

I just realized the opposite of "The Walking Dead" is Staying Alive

Bee Gees - Stayin' Alive (Official Video)

►

C'MON BAM

Ah Ah AH AH STAYING ALIIIIIIIIIVEEEEEE

I'm watch RDJ's Dolittle

#excited #bless #stayhome

oh ma ga i can't

gonna be so lit

ACuriousMind

this isn't twitter

JingleBells

it isn't the principle's office either :D

John Rennie

I recall the disco era of the mid 1970s with very little affection. I wasn't a huge punk fan, but it had the massive advantage of not being disco.

JingleBells

Djamon

@JohnRennie When something is good for not being something else. Imagine.

Doctor Dolittle can talk to animals. I can do even better. I can talk to humans.

ahhh i'm a genius

John Rennie

You are assuming we are human

JingleBells

3:39 PM

No, I'm assuming I'm a human

yes

i talk to myself

ACuriousMind

@JohnRennie We're all humans here.

::modem noises::

JingleBells

59% jamon utorrent

let's be honest, we're all part of simulation and we wake up and morpheus be eating the cookies

85% JAMON

ACuriousMind

what on earth are you going on about

JingleBells

donno i'm just filling up my wait time oh nvm movie downloaded

#blessed #i'mmawatchmovie #urawesome #kardashians

ACuriousMind

It would be nice if you spent your time at least writing messages other people can understand :P

JingleBells

3:44 PM

@ACuriousMind xDD

ok i'mma watch the movie for real, cya

Slereah

@ACuriousMind The spirits have yet to help me with solving equations

They're a notoriously indifferent bunch

ACuriousMind

4:03 PM

You need to take enough to get past the spirits to the cactus people

JMac

Make sure you answer their riddles correctly though.

abhas_RewCie

@JMac allo

JMac

hi

abhas_RewCie

@JMac can you tell me the difference between canadian and american accent?

Slereah

@ACuriousMind Slate star codex reference?

ACuriousMind

4:13 PM

I'm a bit disappointed you don't think it's personal experience ;)

but yes, universal love

tpg2114

@abhas_RewCie There's not one accent that's canadian or american. But, part of Canada has a french accent and the other part has an accent similar to the US midwestern accent

In very broad terms

Slereah

@ACuriousMind Two trips are unlikely to bring up the same visuals!

abhas_RewCie

@tpg2114 Now, that gets very complicated

tpg2114

But in the US, there's probably... let's see... Boston, New York City, Philadelphia have unique accents. Then New England region has one, mid-Atlantic has one. The south has a few (urban south, deep south, coastal south) so we can call that 3 more. The midwest has 2 (northern and central), Texas and the southwest tend to have their own. And then the west coast is what people consider to be "neutral" American accent

abhas_RewCie

@tpg2114 Are there different french accents too?

tpg2114

4:18 PM

So it's like 10-15 regional accents in the US? Roughly -- probably some people would disagree with that

abhas_RewCie

God!

Best one is Donald Trump Accent

XD

tpg2114

@abhas_RewCie Oh yeah, definitely. Within France, there's a bunch. I don't know all of them, my wife does though (she's French)

I can start to tell the difference in various accents now when I hear French

And Canadian French sounds to me like an American speaking French... heh

abhas_RewCie

@tpg2114 I heard different french people just know, thought that they had very different accent from one another... till I realized that only one was speaking english, rest french!

ACuriousMind

@Slereah tell that to the dmt elves

(I jest)

Slereah

@ACuriousMind they are the McKenna visions :p

Not particularly widespread

abhas_RewCie

4:22 PM

What the heck clipboard has become...

I've to go.

Bye :)

yo!

JMac

4:33 PM

Canada also has quite a broad range of accents. Where I'm living right now, a lot of people are French (and English), so there are a lot of thick French accents. The French here also isn't quite like Quebec French, which is it's own thing AFAIK. Where I'm from, the Atlantic Canadian accent is a bit different (Nova Scotian). But as you get further North it gets quite accented. Cape Breton accents can be thick. Then there's Newfoundland, which can be a very intense accent.

I can't find great example videos, but it can be quite hard to understand. It's like a Gaelic/Scottish English I think, with some other influences.

Apparently it's more "West County English" with some Scottish

Slereah

@ACuriousMind To reuse a previous quote

ACuriousMind

Heh

Slereah

Never trust the psychadelicists :p

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