The h Bar

12:00 PM

@MAFIA36790 yes, I thought I'd emphasise that I am (was) actually a scientist. Given the, erm, discussions I've been having with a certain engineer on the site.

Kenshin

@Kaumudi.H yes on occasion, but doing something scary everyday for the sake of it is silly. In your life's journey you'll inevitbly have a roller coaster of emtoions, no need to force yourself into abnormal situations just to make yourself feel

user228700

And maybe realize that you know, we can do stuff we thought we'd never be able to do, like be comfortable talking about free energy! :-D

John Rennie

@MAFIA36790 the thesis han't been digitised. Only the title is available. I do still have a copy but I feellittle urge to scan it. The world doesn't need an online copy of my thesis.

user116211

@JohnRennie nice.

user228700

@Kenshin Totally agreed.

Kenshin

12:01 PM

I think one should live a balanced life

not too much physics

user228700

Maybe a better one would be: "Be OPEN to things".

Kenshin

not too much alone time, not too much group time, not too easy, not too hard etc.

@Kaumudi yeah that's a good one

user116211

@JohnRennie You should; there might be some people who will get benefited from it.

user228700

Yeah, that balance...I don't feel like anybody ever finds it.

Kenshin

yeah but you can come pretty close

John Rennie

12:03 PM

@Kenshin WHAT!!!!!!!!!!!

Kenshin

lol

.

John Rennie

HOW CAN YOU HAVE TOO MUCH PHYSICS ??

Kenshin

haha

John Rennie

That's crazy talk!

Kenshin

I think if you have too much of anything, you can begin to cling to it out of habbit

John Rennie

12:04 PM

@Kaumudi.H it's an unstable equilibrium!

user228700

@JohnRennie Yeah...

Kenshin

A person is only happy when all needs are met

there is a need to learn (physics) there is a need for belonging etc.

but if one need isn't met, there is tendancy to rather than meet it, instead use the other met needs as a crutch

user228700

@JohnRennie My head kinda explodes when we talk about thermo for 6 hours straight. Just saying.

Kenshin

but I say, tackle all of your needs head on

don't fall back on the stuff you're comfortable with

user228700

^ What dyou mean?

Kenshin

12:06 PM

I mean let's say person A is good at physics but is lonely

person A might say, "it's ok that I"m loney, I'll jus tstudy more physcs cos it makes me happy"

but I think person A can only be truely happy if they also seek interaction

a common example is people who overeat

some people get depressed, and rather than tackle their problem, they eat

but they've already satisifed their need for food, yet they continue to overeat as a crutch for their other needs not being met

does this make sense?

Another example

someone might love money

user228700

Yeah, yeah, that makes sense.

Kenshin

and they may sacrifice their health and family to attain money

but when they get money they aren't happy

because they need health and family too to actually be happy. They don't have this, so they just continue to seek more and more money, but never get happier

user228700

Yeah, I understand.

Kenshin

So one needs to ensure all their needs are met to be happy, rather than focusing on one to the detriment of the others

user228700

Yeah...

John Rennie

12:11 PM

@Kaumudi.H you have mail. Nothing important.

user228700

Yeah, I checked. Wow, they are so disorganized.

Kenshin

wat is it

wow TNT problems agian

user116211

Hi @TheDarkSide.

user228700

No, not problems, per se.

user228700

@JohnRennie: They should refund u :-P

Kenshin

12:14 PM

wtf happened tho

user228700

No, nothing important. It's still coming :-)

John Rennie

@Kaumudi.H once you have the laptop safely in your hands I'm going to demand a refund. But I'm not doing a thing until you have the laptop safely in your hands!

user228700

@JohnRennie Wait, u really are?

John Rennie

@Kaumudi.H yes. It never hurts to ask. The worst they can do is say no.

Kenshin

@JohnRennie r u able to contact TNT ahead of time and ask what the hold up is?

hi @heather

user228700

12:17 PM

@JohnRennie That's awesome (Y).

heather

@Kenshin, hello

Kenshin

@JohnRennie what's hard about QFT?

heather

@Kaumudi.H, did you get the laptop yet?

Kenshin

like it seems u know all physics, I'm keen to learn QFT too, but why do you find it hard?

heather

@Kenshin Everything =P

user228700

12:17 PM

Oh, now everyone knows about the laptop :-P

heather

I'm rooting for you =P

user228700

@heather: Hey :-) Nope. It's on its way.

koolman

Hii everyone

user228700

@heather Thanks!! :-D

Kenshin

The laptop's hte most exciting thing that's ever happened here

heather

12:18 PM

@Kaumudi.H, aw, at least it's close.

John Rennie

@Kenshin GR is based on just a few basic principles that are easy to grasp. From there the algebra can be hard, but the whole thing is conceptually straightfiorward.

user228700

@Kenshin x'D I dunno...people will start disagreeing all over the place.

koolman

Does anyone has some idea of solid states ? I have a question .

user228700

@heather Yep. It'll get here today/tomorrow! :-)

John Rennie

@Kenshin But this isn't the case for QFT. When you start learning it QFT seems baffingly complex, and after you've grasped the basics it still seems bafflingly complex!

Kenshin

12:19 PM

@koolman yes solid is one of the 4 states of matter

true

I mean I thought it was complex

but for me it's because I need to imrpove my fundamentals

like ladder operators etc.

koolman

KF crystallizes in the NaCl type structure. If the radius of K+ ions 132 pm and that of F– ion is 135 pm,then what is the shortest K–F distance?

Kenshin

and complex analysis

koolman

@Kenshin i mean this

John Rennie

@Kenshin you don't need QFT for ladder operators. Learn them using the simple harmonic oscillator first.

Kenshin

Sorry I meant I need to brush up on my SHO

before tackling QFT

that's why QFT is hard for me

because my fundementals aren't good enuf yet

so that's why I'm surpised even someone with all the fundementals like u@JohnRennie still find it complex

The Dark Side

12:22 PM

@MAFIA36790 Hello MAFIA guy. Long time.

And hello hbar. Long time.

:)

Kenshin

Hi @TheDarkSide

did you see rogue one?

user116211

Vader is looking awesome.

user228700

"MAFIA guy" xD

Kenshin

how does Vader come back to lfie after Rogue one?

there must be another episode to come that explains it?

John Rennie

Anyhow, I'm going off to get lunch.

user228700

12:23 PM

Dude, @Kenshin: Just look over to the starboard.

Kenshin

what?

user228700

@JohnRennie I'll see u tomorrow, bye! :-)

Kenshin

btw I haven't seen rogue one yet

John Rennie

@Kenshin None of these!

Kenshin

Just trolling

@JohnRennie I haven't seen rogue one ;p

John Rennie

12:23 PM

koolman

@Kenshin do you have any idea of that question

Kenshin

132+135

koolman

Why

The Dark Side

@Kenshin That's 267. You are welcome. And hi.

Kenshin

ty

ur smart

@koolman tight pack

koolman

12:25 PM

Where do you think they are situated in cubic lattice @Kenshin

user116211

@JohnRennie bye.

Kenshin

just a gues

John Rennie

Potassium fluoride

Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide and occurs naturally as the rare mineral carobbiite. Solutions of KF will etch glass due to the formation of soluble fluorosilicates, although HF is more effective. == Preparation == Potassium fluoride is prepared by dissolving potassium carbonate in excess hydrofluoric acid. Evaporation of the solution forms crystals of potassium bifluoride. The bifluoride on heating yields potassi...

Kenshin

was i right john?

guys @JohnRennie isn't really going to lunch, he just didn't want rogue one spoilers

John Rennie

@koolman I can't help feeling you could have done a bit more research before posting the question.

koolman

12:26 PM

@JohnRennie i will see it

John Rennie

And with that John flounces off

koolman

@JohnRennie ok I will come later with more research

Kenshin

@MAFIA36790 what martial arts do you know?

The Dark Side

I bring bad news to the hbar.

user116211

Nothing.

user116211

12:28 PM

@TheDarkSide ::stares::

The Dark Side

Sid Drell, one half of the famous Bjorken-Drell book series (doublet actually), passed away.

user116211

He was 90. hmm.

The Dark Side

Sad day :(

user116211

They should form a cult like Bourbaki who never dies.

The Dark Side

:)

heather

12:34 PM

@Kaumudi.H, snow is magical/wonderful.

user116211

@heather I'm jealous.

heather

@MAFIA36790, do you live in a no-snow area?

The Dark Side

@Ramanujan Happy Birthday :P

user116211

@heather :(

Ramanujan

@TheDarkSide thanks

heather

12:35 PM

@MAFIA36790 I'm sorry

=/

user116211

@heather It's drizzling outside, hmm.

heather

=(

drizzling = no fun

user116211

I know; it's chilly too; but not that Christmas-y chilly :|

heather

=/

Kenshin

do you believe in Santa @heather

heather

12:49 PM

@Kenshin, no....

Kenshin

oh

Slereah

Almost through season 3 of Enterprise

That show is an ordeal

user116211

1:03 PM

Watchin' Star Trek, aha.

Physics Meta

1:20 PM

0

Q: Are the implications of magic on-topic?

I was about to post a question here, but felt unsure if it was topical here, or if I should post on World-Building instead. In a nutshell, my question has a premise that something magical (and probably impossible) had happened and to ask what the implications of that happening would be. The rea...

Slereah

1:58 PM

wizards

user116211

3:10 PM

Isaac Newton science book sells for $3.7M

Slereah

Science publishing out of control once more

Does your greed know no end mister Newton

user116211

He was an English knight.

user116211

$\uparrow$ what is going on?

user116211

Apparently, someone withdrew his/her upvote, but the page is not showing it properly.

user116211

3:27 PM

okay, it takes some time, I'm seeing.

John Rennie

3:46 PM

Lazy b*****d!

-2

Q: All about Lorentz Transformation

For complete dummies , What is Lorentz transformation and what are its applications ? Please start from the basics.

special-relativity lorentz-symmetry

user116211

uff

user116211

0

Q: Being on the same wavelength

The usage of physics terminology outside of technically minded people seems limited. That's why I am curious about the phrase being on the same wavelength which as far as I understand is generally understood (and also exists in at least the German language, that's why I ask here and not at Englis...

waves terminology everyday-life resonance wavelength

user116211

What to do with this?

DanielSank

@Slereah That's an understatement.

Time travel and Nazi aliens...

@Kenshin She's 14, bro.

user116211

@DanielSank o/

DanielSank

3:52 PM

\o

John Rennie

@Slereah I bet he's on the board at Elsevier!

DanielSank

@JohnRennie Nice hat.

user116211

;P

user116211

Elsevier is villain to free-access of papers.

user116211

@DanielSank You should have got that too.

John Rennie

3:55 PM

@DanielSank I'm struggling to find any interesting way to wear it. Time for a change I think ...

DanielSank

@JohnRennie Really? I think you've optimized it!

koolman

4:17 PM

@JohnRennie , I got my answer of that solid state question

John Rennie

@koolman Excellent :-)

vzn

4:37 PM

@MAFIA36790 sounds like a mischaracterization aka straw man to me.

Slereah

5:40 PM

Printing papers to read while at the family for Christmas break~

It's gonna be Rarity Schwinger, Krasnikov metrics and the conformal anomaly

Also maybe some wavefront set

DanielSank

@JohnRennie um, excuse me... you seem to have a trophy in your nose.

John Rennie

@DanielSank I've only been changing hats when I get a new one, but I haven't got a hat for the last 24 hours. I'm running out of ideas for amusing ways to wear the trophy hat :-)

If I don't get another hat soon I'm going back to the boob hat. That one is at least funny!

DanielSank

8:48 PM

Hi, everybody.

Sanya

good evening

heather

9:27 PM

hello

Pissed off layman

yo

DanielSank

oy

heather

9:46 PM

Bernardo has a todo that says "add pretty image of wave showing lambda"

i'm not completely sure what he's looking for, but would something like this work:

(not very pretty, but is this the concept he's looking for?)

DanielSank

Yeah that looks about right, but be careful of using other people's images.

heather

okay

how can you check if an image is okay to use?

dmckee

10:08 PM

@heather In general this is difficult. If you stick with Google's image search then they have a tool that will search only images known to fall into certain classes of reuse rights.

heather

@dmckee, okay.

dmckee

Also keep in mind that it is a matter of academic ethics to credit the creator no matter what rights you have to reuse the image.

3

Even public domain images should be credited if you can determine the creator.

heather

okay.

that makes sense.

heather

10:24 PM

@BernardoMeurer, I completed your to-do list =D (i would've finished earlier, except last night was decorating-the-tree night.)

Bernardo Meurer

10:55 PM

@heather Sweet!

I have 12 hours in Heathrow to work on translation now

heather

@BernardoMeurer, nice! I won't have a ton of time tonight, but I can work on it a bit, and I'll have plenty of time tomorrow - I'm off of school! On winter break! =D

Bernardo Meurer

@heather Awesome! I added a bunch of TODOs, just let me merge things

heather

okay, sounds good

DanielSank

11:15 PM

Bernardo, U Y no work on our projects?

Heheh, we can start fighting over each other's time.

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