The h Bar

Dawood ibn Kareem

2:49 AM

@Kenshin How is it racist for someone to be German on their father's side?

Emilio Pisanty

4:57 AM

0

Q: Relativistic Mass and Gravity

Does relativistic mass affect space time in the same way as rest mass? To my understanding, (as I am not an actual physicist, but simply a citizen scientist) relativistic mass is really the measure of an object's energy. It is not the same as rest mass, which is the definition of mass that a ...

Surely a dupe, right?

@JohnRennie

Kenshin

5:08 AM

@DawoodibnKareem I never said it was racist

but it is racist to presume German's have particular unique attributes

John Rennie

@EmilioPisanty Possibly:

2

Q: Relativistic mass as seen by different observers

Imagine there are two observers $A$ and $B$ and a particle $P$. $A$ and $B$ are at about the same point, $P$ is some distance away. From $A$'s point of view, $P$ has velocity $V$ and $B$ has velocity $-V$. P----> A <----B Suppose $A$ and $B$ have the same rest mass ...

relativity

I'm a little reluctant to dupehammer it as I think it is a good question and I've never seen a really good answer. My own attempts at answers are too vague to be really convincing.

user228700

6:03 AM

Hi, everyone :-)

John Rennie

Morning

user228700

@JohnRennie Wanna see those pictures now? :-)

John Rennie

Go on then :-)

user228700

...in the interest of not spamming this place with 10 photos of food, I'll send them via Gchat.

John Rennie

:: John hurries over to Gchat ::

Dawood ibn Kareem

6:24 AM

@Kaumudi.H Gee you're no fun. I was thinking this was the perfect room for food photos.

user228700

:-P There are too many...

Dawood ibn Kareem

There must be some kind of happy medium between zero and too many.

user228700

3, perhaps?

user228700

user228700

6:28 AM

user228700

There :-P

Dawood ibn Kareem

@JohnRennie That seems to me like a completely different question from the one Emilio mentioned.

@Kaumudi.H That looks yum!

user228700

And it was! :-)

John Rennie

@DawoodibnKareem both questions address the question of whether relativistic mass gravitates i.e. since the relativistic mass increases with speed does that mean the gravitational force increases with speed.

Sid

What's that last food item?

user228700

6:32 AM

@Sid Fried spinach and corn.

Sid

Spinach?.... Not my favorite thing out there.

user228700

It tasted great!

Sid

6:48 AM

Humph, Spinach sucks unless you are popeye.

John Rennie

@Sid to be fair spinach is frequently badly cooked so it turns into a gelatinous green goo that appeals to no-one!

It can be very nice if cooked well.

The picture K posted looks as if it has been cooked to it remains crisp.

user228700

@JohnRennie Indeed, it was. It almost fell completely apart in our hands.

John Rennie

7:09 AM

@Kaumudi.H: you have to choose your course before the rankings are published? That seems odd.

user228700

@JohnRennie Well, no, it's just that I'm not gonna have any time to select my course after they're published because I've gotta start applying right away.

John Rennie

7:21 AM

@Kaumudi.H There has to be information on the MEC courses somewhere. They can't expect students to apply without any idea what they're applying for.

@Kaumudi.H: you've presumably seen this, although it's pretty vague.

Actually that looks like an interesting course. What were the other courses you were considering?

Dawood ibn Kareem

7:36 AM

@Sid Actually, I have loads of delicious spinach recipes. It sucks by itself, but there are so many interesting and wonderful things you can do with spinach, with a bit of creativity.

SBM

hello

Dawood ibn Kareem

hello

user228700

@JohnRennie I have, yes, and it does, yes.

user228700

The other two courses I am considering are electrical and electronics.

Dawood ibn Kareem

@JohnRennie What delighted me immensely was how the question culminated in "can this be explained with high-school maths?" and the first sentence of your answer contained "the Riemann curvature tensor is co-ordinate invariant".

John Rennie

7:40 AM

@DawoodibnKareem so the answer is simply: NO :-)

user228700

I'll brb...

John Rennie

Actually I should have said covariant not invariant ...

Dawood ibn Kareem

@JohnRennie Whew. I was beginning to think you and I had gone to different high schools :-)

Avantgarde

:(

I need that pizza

John Rennie

@Kaumudi.H: Aha! I've found some syllabuses (syllabi?) here

SBM

7:44 AM

kochi?

oh

I see.

Avantgarde

wait. does that pizza have pineapple on it?!

John Rennie

@Avantgarde did you know that the inventor of the Hawaiian pizza died just a few days ago?

Physics Meta

0

Q: How to deal with negative responses on SE due to personal grudge?

I recently encountered a SE user who, after I refused to mark his answer as accepted, downvoted my question, marked it as a duplicate (which is evidently not so) and deleted his own answer. How do we deal with such situations where judgements are passed based on a personal grudge? P.S. I am n...

discussion

Avantgarde

@JohnRennie I did not. I've never tasted pineapple pizza. I'm willing to try it once though

SBM

pineapple pizza; oh no :|

John Rennie

7:47 AM

See for example this article

I quite like pineapple on pizza as long as it's with something savoury like ham or bacon. The sharpness and sweetness of the pineapple works well with the ham.

Avantgarde

I've never had a non-vegetarian pizza.

Sid

I haven't tried pizza in a long time.

Avantgarde

:O

Sid

I have no sense of taste. You could forget to put Salt in the food and I wouldn't know.

Avantgarde

Is your tongue alright?

Mithrandir24601

7:58 AM

@Kaumudi.H Too many photos of good food is simply impossible :P

Sid

Well, I can distinguish sweet, sour, bitter

Slereah

"If you have seen one complex, two-dimensional vector space, you have seen them all"

How blasé

Avantgarde

Pretty good, but there's much more to that lol

Sid

In a way, I feel it's good that I have got no sense of taste. Will surely help me survive Ina dorm

Avantgarde

:P

SBM

8:05 AM

:|

Avantgarde

what about life after that?

Anonymous

Can someone give me a review on Susskind's theoritical minimum (Classical Mechanics) book? Is it suitable for someone who knows basics Newtonian mechanics and calculus?

Avantgarde

I've never read it

or maybe a little, but not enough to comment on it

Anonymous

Umm, anyone else?

Sid

@Avantgarde wouldn't make a difference. Simply praise the food that you get.

Anonymous

8:08 AM

I'm finding Goldstein a bit difficult to follow (especially the language). It seems I need to know some things beforehand for Goldstein.

John Rennie

@Sid that's unusual. It's quite common to be able to taste only salt, sour, sweet and bitter (and umami) because the other tastes are really smell and lots of people have reduced ability to smell. In fact I have a very poor sense of smell, which is why I prefer very strong tastes.

But I haven't met anyone who could taste sour, sweet and bitter but not salt.

Sid

I could probably know Salty. But, if the guy forgot to add salt, I don't really realize it until someone else points it out.

Secret

8:35 AM

Balarka Sen

@DawoodibnKareem Riemann curvature tensor is easy math

any 5 year old can understand what that means

Mithrandir24601

8:58 AM

@Secret I much prefer this:

make that a sphere

is this good enough?

btw are these beads?

nope :)

The following is a slightly improved version, still look NOTHING like I want it to be

I mean, "Where's the awe, where's the drama, where's the particle wonder?"

I think I need a 3D rendering software to do this right

Mithrandir24601

9:09 AM

I still prefer the ones I uploaded as it's actual physics :) see e.g. youtube.com/watch?v=nmC0ygr08tE and yes, I do have a video of them walking :D

Secret

wait, so you are involved in the pilot wave oil droplet research?

Mithrandir24601

Nope, we just decided to give it a try

Secret

I see

Balarka Sen

How are we making the droplets walk? Just want to know the mechanism.

Secret

One thing I am curious is whether the dynamics can produce something that is a classical analogue to entanglement, though I am not sure how we can violate bell inequality for something that seemed to have well defined trajectory

Mithrandir24601

9:14 AM

Take a speaker, put some sort of container on it. Put some silicon oil in the container and then spend several weeks messing with the frequency of the speaker until the oil droplets start doing interesting things :)

Balarka Sen

Oh, weird as hell

Interesting though

Mithrandir24601

The actual physics mechanism is essentially that the droplets 'hit' the surface of the oil and create their own wave, which in turn propels the droplets along

@BalarkaSen It's incredible to watch

Balarka Sen

Yeah, I understand that

Mithrandir24601

@Secret It's just a classical analogue for (quantum) pilot wave theory, so it doesn't show any actual quantum effects (except for a possible interpretation of wave-particle duality) - it is a good motivator for pilot-wave theory though

Secret

It still astonish me why condensed matter can produce many things that look just like all those crazy particle theories the particle physicists have been building and tried to find

It's as if condensed matter can produce any quasiparticle that can mimic any exotic particle we create models for

John Rennie

9:23 AM

@Secret: any condensed matter system is basically a set of coupled simple harmonic oscillators. Any quantum field theory is basically a set of coupled simple harmonic oscillators :-)

Secret

It does seemed that the whole world is described in terms of coupled simple harmonic oscillators

Slereah

9:59 AM

@ACuriousMind Is there a specific way of writing 2D CFT theories

The coupling term is just zero

Is there anything to add to the KG lagrangian

I'm guessing it might restrict the potentials

For instance the mass being zero

ACuriousMind

@Secret It seems much more likely that we make everything fit the mold of the harmonic oscillator because it's one of the few systems we understand well - this does not mean it's somehow an inherent property of "the whole world".

@Slereah I'm not sure what you mean

Slereah

What's the lagrangian for a 2D CFT

Is it just $\partial \phi^2$

ACuriousMind

Admittedly, my understanding of 2d CFT is not Lagrangian at all - you can develop CFT without reference to Lagrangian, and classify the minimal models purely in terms of their field content

Slereah

You can't add a mass term, but are there potentials $V(\phi)$ that preserve the conformal invariance

ACuriousMind

I think the only Lagrangian theories I've seen are the free boson and the free fermion on various surfaces

But you get other CFTs, e.g. the continuum limit of the Ising model

That should have a non-free Lagrangian

Slereah

10:06 AM

I guess let's do free ones for now

ACuriousMind

Well, as I said, I'm not used to CFT from a Lagrangian perspective - the Virasoro algebra/conformal invariance is such a powerful tool that I don't really see what you need the Lagrangian for.

Slereah

do u not recall Feynman's wisdom

You should be able to do something in several different ways

John Rennie

10:27 AM

Frakking, frakking, fracketty frak. I have a video conference in half and hour and my laptop has decided that now is a good time to install the Windows Creator's Edition update.

ACuriousMind

@JohnRennie Surely one of your dozens of laptops will be able to handle a simple video call?

John Rennie

:-) I wanted to use my newest since it has the best webcam.

ACuriousMind

Eh, see it as an excuse to not have to do your makeup ;)

John Rennie

I think I'm OK, because even though there's no option to abort the upgrade I think it will pause at the end and ask me to click a button to restart.

I thought I'd selected the options to make feature upgrades on demand only, but obviously not.

Aha. It's just displayed a message saying click here to restart and complete the update. With less than 30 minutes to go? I think not!! :-)

@ACuriousMind because I start so early (5 a.m.) I normally tumble of out bed and put on yesterdays clothes, so crumpled clothes and bed hair makes me look like an unusually dishevelled tramp. I've actually showered and dressed in preparation for this video conference!

ACuriousMind

I did not realize "John got dressed" was a noteworthy event in your life! ;P

Speaking of which, I should get dressed :D

Balarka Sen

10:36 AM

I don't change clothes. I have mine on from heaven knows when.

Slereah

10:52 AM

Partenaire Particulier - Partenaire Particulier (Clip Video)

►

Ah, the french 80's

Avantgarde

@BalarkaSen you dirty man

Sid

@BalarkaSen use deodorant. No one would realize how long it has been since you changed your clothes.

Balarka Sen

I don't care what others realize.

($\implies$ I don't use deodorants)

Slereah

Way to perpetuate the stereotype

Do you also have a giant math beard

Balarka Sen

No, because I am not stereotypical. I stink, but I don't have math idiosyncrasy.

avant garde $\neq$ stereotype

Slereah

11:03 AM

Being smelly isn't being avant garde

People have been smelly for thousands of years

Balarka Sen

sure it is. the public consciousness of the postmodern age is to have stylish and attractive outer appearance

I strive to break that.

SBM

@BalarkaSen um ... must be a joke.

Slereah

There are plenty of fashions breaking with that notion

You poseur

Avantgarde

fancy cologne > deodorant

Balarka Sen

I will bet 5$ that none of those are popular trends.

Avantgarde

11:07 AM

còløgnę

Slereah

Punk's not dead, as the saying goes

Balarka Sen

One should not identify me with the hippie culture either. I could write pages on our conflicting set of opinions, and point out how hippies have invaded the pop culture. My basic premise is to refute popular culture.

Slereah

Look at mister contrarian

His whole identity based on not being

Balarka Sen

I am glad someone understands me.

Slereah

:D

I've been wearing the same outfit for basically 20 years really

During the warm days, T-shirt, denim jacket and jeans

Sid

11:12 AM

Well, if it is warm, why would you wear a jacket?

Avantgarde

sweg

Slereah

Pockets

If it's really warm I will tie it around my waist

Sid

@Avantgarde I noticed you were in Puzzling yesterday. Liked our site?

Balarka Sen

you could attach pockets to your T shirt

Slereah

I'm no seamstress

Avantgarde

11:15 AM

@Sid I played spyfall, yes. I enjoyed it. I will be there again soon

Sid

Ah, spyfall. I suck at that game.

Avantgarde

It was nice. I'll try other things in that SE too

Balarka Sen

I want a T-shirt with a face printed across it that resembles the face of Trotsky, menshevik Nikolayevsky and Uncle Sam's faces photoshopped together

Avantgarde

crazy song coming up

Slereah

@BalarkaSen Me I only want this sweater

Sid

11:22 AM

Heh.

Slereah

Or perhaps Eminem's own Alf T-shirt

Avantgarde

Pin-Up Went Down - Nearly Dead Bat Make-Up

►

Balarka Sen

That's a good sweater

Slereah

The MECHATRONICS

What is the correct word anyway

Quantized or quanticized

ACuriousMind

11:56 AM

@Slereah What. Is. That.

Slereah

12:14 PM

I think it's one of those theory of everything that engineers come up with

Where the whole universe is made of nuts and bolts

Slereah

12:34 PM

Do we know if Motl approves of any quantum gravity outside of string theory

1:23 PM

How much sense does semiclassical gravity make, anyway

The stress energy tensor has to be a function

but since it stems from an operator valued distribution, it's not guaranteed that it is one

Are there any case in QFT where the expectation value wouldn't be a function?

Mostafa

I totally understand that.
what happens to every student that lives in a dorm for more than ~2 years is explained quite good in this quote:

*”...And we forgot the taste of bread, the sound of trees, the softness of the wind...”*
(by Gollum(https://www.google.com/search?q=gollum))

Basically, this: (especailly if you live there for around 3 years or more)

smeagol fall

►

Slereah

So what is the chat session about

ACuriousMind

1:39 PM

@Slereah @BernardoMeurer, I believe

Bernardo Meurer

Hey

My chat session is only later, no?

ACuriousMind

Is it after the normal one?

Bernardo Meurer

Yeah, my chat is at 1600 UTC, its only 1348 currently

Eh, I think it's at the same time as the normal one now that I think of it

ACuriousMind

Yeah, it is :P

Bernardo Meurer

I don't know, @vzn gave me the time

and DZ signed off on it

bolbteppa

2:02 PM

@Slereah He would probably say there is no QG outside of ST :p

If $A^{\mu} \mapsto A'^{\mu} = \frac{\partial x'^{\mu}}{\partial x^{\nu}} A^{\nu}$
where the matrix $\frac{\partial x'^{\mu}}{\partial x^{\nu}}$ is an element of $GL(D,\mathbb{R})$ admits tensor representations, we want to ask if the spin (projective) representations of $SO(D)$ come out of restrictions from $GL(D,\mathbb{R})$. Were we able to obtain operators in the spin representation by elements $\frac{\partial x'^{\mu}}{\partial x^{\nu}} \in GL(D,\mathbb{R})$, it would mean we could restrict the element corresponding to $x_1' = x_1 \cos(\theta) - x_1 \sin(\theta)$, $x_2' = x_1 \sin(\thet…

$$\begin{aligned}
\zeta_0 &= \pm \sqrt{\frac{x-iy}{2}} \\
\zeta_1 &= \pm \sqrt{ \frac{-x-iy}{2} }
\end{aligned},$$
where the components change sign after a rotation by $2 \pi$
$$\begin{aligned}
\zeta_0' &= \pm \sqrt{\frac{x'-iy'}{2}} = \pm \sqrt{\frac{e^{i 2 \pi}(x-iy)}{2}} = \mp \sqrt{\frac{x-iy}{2}} \\
\zeta_1' &= \pm \sqrt{ \frac{-x'-iy'}{2} } = \mp \sqrt{ \frac{-x-iy}{2} }
\end{aligned}$$
showing that the $\frac{\partial x'^{\mu}}{\partial x^{\nu}} \in GL(D,\mathbb{R})$ must restrict to both $(\zeta_0,\zeta_1)$ and $(-\zeta_0,-\zeta_1)$, that is, the group of transformations $x_1' = x_…

Slereah

@ACuriousMind Are we killing him?

bolbteppa

But of course here is the difficult part

ACuriousMind

@Slereah I believe we're just supposed to ask him stuff.

Slereah

Oh is that another AMA

I prefered the first guy

First AMA was best

ACuriousMind

...that was you, wasn't it? :P

Mithrandir24601

2:12 PM

@Slereah what's the saying? First the worst? :P

bolbteppa

The collection of matrices $\begin{bmatrix} a && b \\ c && d \end{bmatrix}$, where I chose $\begin{bmatrix} \cos(\theta) && -\sin(\theta) \\ \sin(\theta) && \cos(\theta) \end{bmatrix}$, is not supposed to admit faithful representations with a finite no. of variables, so the above is supposed to be a contradiction, but to show there are no faithful representations, section 75:

https://ia800701.us.archive.org/BookReader/BookReaderImages.php?zip=/5/items/TheTheoryOfSpinors/Cartan-TheTheoryOfSpinors_jp2.zip&file=Cartan-TheTheoryOfSpinors_jp2/Cartan-TheTheoryOfSpinors_0080.jp2&scale=4&rotate=0

This avoids any homotopy etc

Mithrandir24601

(To be clear, I wasn't actually there, so can't comment)

bolbteppa

(This proof lets you see that you can't put spinors on curved manifolds)

Seems to be saying that $x' = \frac{a \tan(x) + b}{c \tan(x) + d}$ is a multi-valued function and the same $a,b,c,d$ map to $x'$ and $x\pm \pi$ etc but not fully clear how this proves the final part tbh

ACuriousMind

@bolbteppa As written, it's pretty unclear what is happening

@bolbteppa Either I don't understand what "putting spinors on curved manifolds" means, or that claim is just wrong.

bolbteppa

Proving the theorem here:
https://ia800701.us.archive.org/BookReader/BookReaderImages.php?zip=/5/items/TheTheoryOfSpinors/Cartan-TheTheoryOfSpinors_jp2.zip&file=Cartan-TheTheoryOfSpinors_jp2/Cartan-TheTheoryOfSpinors_0160.jp2&scale=4&rotate=0

Equivalently here, from GSW mathoverflow.net/questions/121620/…

But doing it brute force without homotopy tricks

ACuriousMind

2:19 PM

@bolbteppa I don't know what notion of "spinor" that source uses, but the statement "you can't put spinors on curved manifolds" would be seen as wrong by the vast majority of mathematicians and physicists, that's precisely what spin structures/spinor bundles do.

Slereah

only if you have a spin manifold, obviously

ACuriousMind

Sure - "spin manifolds" means you have a spin structure. The obstruction is the 2nd S-W class and not the manifold being curved, though.

Slereah

troo

you can always have a local section of the spin bundle

bolbteppa

Apologies, yeah, you can't put spinors on manifolds that transform under general coordinate transforms $GL(D,\mathbb{R})$ and need to modify your connection, but am trying to actually prove you can't just restrict from $GL(D,\mathbb{R})$ down to spinor representations of $SO(D,\mathbb{R})$ as GSW claim

Slereah

although you can still have pinors even if it's not a spin manifold

But pinors are weird

bolbteppa

2:31 PM

Summing up what I wrote above, it seems fair enough that if you could restrict from $GL(D,\mathbb{R})$ down to spin representations, then even just considering the rotation $x' = x\cos(\theta)\dots$ should restrict down to spin representations, but by expressing the components of a spinor in terms of the $x,y,z = x_1,x_2,x_3$ coordinates you can explicitly see this is a double-valued relationship.

The final step (over the complex numbers, showing you can't have a multi-valued representation of $GL(D,\mathbb{R})$ using topological arguments, need to modify over the reals) seems to be showing you can't have a faithful representation, but this is the confusing part, and he proves it with this $\tan$ argument which is a bit crazy, any thoughts on that?

This argument does seem to be completely general and basically talking about the metaplectic group which is the double cover en.wikipedia.org/wiki/… but without high falutin' words

Sid

2:46 PM

Okay, guys a question for you all. It's not intended to hurt anyone.

Is there an abbreviation for Jerk?

(Part of a puzzle)

Avantgarde

Jk

AccidentalFourierTransform

ama anyone?

The Dark Side

3:03 PM

@AccidentalFourierTransform Alright. (You just said Ask me Anything!) Why is this particular Fourier Transform an accident? :P

AccidentalFourierTransform

The Dark Side

@AccidentalFourierTransform That's one xkcd I never got! What do the cat's periodic components refer to?

AccidentalFourierTransform

explainxkcd.com/wiki/index.php/26:_Fourier

The Dark Side

Even with that.

AccidentalFourierTransform

¯\_(ツ)_/¯

The Dark Side

3:07 PM

^ Didn't get that either!

I'm just too smart for this world!

AccidentalFourierTransform

lol

The Dark Side

Look. Any part of cat's body which oscillates in some rhythm will give you a component in the plot.

So, if the cats twitch their tails in some rhythm, assume it is SHM, single frequency and hence a spike somewhere in that graph.

But periodic equidistant spikes, each with decreasing amplitude, ...

Secret

I will strongly suggest to copy that graph, do a reverse fourier transform, and see what we will get

The Dark Side

And also, I see two feet like features there.

Are cat's feet Gaussians?

@Secret lol

Or maybe I have a conspiracy theory.

@AccidentalFourierTransform is the FT of a cat.

Who is the most famous cat to grace this chatroom?

0celot

AccidentalFourierTransform

Jan 6 at 17:53, by AccidentalFourierTransform

The Dark Side

3:16 PM

Is that a hint?

Wow that's a long long @Loong

@AccidentalFourierTransform That confuses me even more.

This is what you should have linked to:

Jan 6 at 17:58, by AccidentalFourierTransform

I just wasted a lot of time trying to find what the Fourier transform of a wavy cat looks like

AccidentalFourierTransform

I think I need to buy a new mobile phone

mine wont turn on

Ive had mine off for two days now

I wonder if someone had something important to tell me

oh well

Sid

Maybe charge it?

AccidentalFourierTransform

.-.

Bernardo Meurer

@AccidentalFourierTransform Did you really go through the trouble of reverse-transforming the cat?

AccidentalFourierTransform

of course I did

dont act like you dont know me

The Dark Side

3:25 PM

@BernardoMeurer Correction: reverse transforming the FT of a cat :P

Bernardo Meurer

@AccidentalFourierTransform This is why I like you

You get the struggle

AccidentalFourierTransform

The Dark Side

How bad is our education, people taught us that IFT of FT retrieves the original function.

That doesn't look like a cat to me!

AccidentalFourierTransform

Phoebe Buffay - Smelly Cat

►

The Dark Side

@AccidentalFourierTransform The joke is on you dude :P

You are the cat.

AccidentalFourierTransform

3:30 PM

I smell lovely cause I don't eat meat

Emilio Pisanty

@AccidentalFourierTransform that cat inverse FT looks pretty suspect to me

Is it assuming a flat phase?

AccidentalFourierTransform

idk, ask mathematica

what is a flat phase though

Emilio Pisanty

As in, did you just take that function and Fourier transform it?

The Dark Side

@EmilioPisanty Do you get that xkcd?

AccidentalFourierTransform

@TheDarkSide its one of the first xkcd's

its not supposed to be funny

its not supposed to mean anything actually

they are random drawings

Emilio Pisanty

3:34 PM

Or did you multiply it by some position-dependent unit complex number

Mostafa

@EmilioPisanty Good point. There's an idiom about the Fourier trasnforms:

The devil is in the phase.

Emilio Pisanty

Not so much the devil

everything is in the phase

Pretty much

The Dark Side

@AccidentalFourierTransform So, the joke is people will spend some time trying to figure out what that means, and actually it doesn't mean anything meaningful.

That's a cruel joke.

AccidentalFourierTransform

not really: there is no joke

at first, he didnt try to make funny comics

The Dark Side

That's the joke,

AccidentalFourierTransform

3:36 PM

they were just random thoughts

The Dark Side

Ah. So, why did you choose this particular username and image?

i.e. avatar

AccidentalFourierTransform

dont you like it?

I can change it

Mostafa

yesterday, by AccidentalFourierTransform

AccidentalFourierTransform

what username should I use?

Mostafa

Don't wear super slim fit pants. @AccidentalFourierTransform

They increase the temperature of the testicles, which in turn leads to infertility.

AccidentalFourierTransform

3:39 PM

@Mostafa lol, they are not actually slim fit

I dont think they are

idk

The Dark Side

@AccidentalFourierTransform No. I didn't mean that. I was only trying to figure out if you saw more in it than me.

AccidentalFourierTransform

@Mostafa why did you assume I have testicles? :-P

also, infertility is a gift

Mostafa

People have invented things like this to ice their testicles.

Fawad

@AccidentalFourierTransform from other room it looked like “why did you assume ass”

AccidentalFourierTransform

never assume ass

having an ass - one of the impossible standards set by the modern day society

Mostafa

3:43 PM

You put ice in those blue areas.

The Dark Side

@Mostafa How did this invention miss an IG Nobel?

:P

Mostafa

Very smart invention by physicians who are typically paid 3 times a particle physicist.

Jaime Gallego

Hey everybody

The Dark Side

Hey.

Bernardo Meurer

Space Jazz

AccidentalFourierTransform

3:46 PM

Hey

been trying to meet you

ACuriousMind

@BernardoMeurer Do you want to set up a separate room for questions/chatter during the AMA like Daniel did or do you want to keep it all here?

Bernardo Meurer

@ACuriousMind I don't mind keeping it here I think, what are your thoughts?

The Dark Side

@ACuriousMind No. It would be fun to have his/her AMA here, while the other users are discussing genius inventions by mankind!

The transcript would be so interesting.

:P

ACuriousMind

@BernardoMeurer I think both have their advantages and drawbacks, so I'd say it's entirely your personal preference

Mostafa

Another smart invention by doctors: Anti- electromagnetic wave Textile fabrics and Clothing:

lessemf.com/personal.html#279

Bernardo Meurer

3:48 PM

@ACuriousMind Let's keep it all here then :)

Mostafa

Price: $69.95 (no joke)

Very fashionable

Bernardo Meurer

Where's @vzn?

David Z

hi all

Sid

What is an AMA?

What sort of questions are usually allowed?

Bernardo Meurer

Ask Me Anything

SBM

3:57 PM

Ask Me anything

oh

Bernardo Meurer

11

Q: June 13th Ask Me Anything feat. Bernardo Meurer

I'm Bernardo and I've been invited as the next guest for the Physics Stack Exchange AMA. The session will take place on the h Bar, on June 13th at 16:00 UTC. If you, much like me, gets awfully confused by timezones, just click here. Post questions you'd like answered below The AMA is always inf...

discussion

ArtOfCode

@Mostafa also known as chainmail

SBM

:)

Bernardo Meurer

@Sid Read that

The Dark Side

Hey @DavidZ is here for the formal deep-voiced announcement - chat session time.

ACuriousMind

3:57 PM

T-3 min

David Z

I don't think I really need to do anything in that regard

SBM

@ACuriousMind t = ?

vzn

hi all welcome all & Bernardo Meuer to our latest AMA! we havent had one in quite awhile! thx BM for agreeing! click on BMs meta post for info on his bkg. hope to hear from everyone whos in the room at least once during the 1hr session, there will be no record of your being here unless you write at least 1 line!

ACuriousMind

@SBM I meant to say we officially start in 3 (now 2) minutes.

SBM

@ACuriousMind oh; good and sorry

Transcript for