The h Bar

@Kenshin We already had a huge conflict over changing the room name. I can't imagine what would happen if some of us suggest to change the whole theme. I'll stay out.

Kenshin

10:12 AM

@anonymous the current name is great

@anonymous the current theme is average

Sir Cumference

@anonymous I'm still kind of bummed that we didn't go with Schrödinger's chat

Brilliant pun

anonymous

So is the current theme.

Kenshin

People aren't against change, they just don't want to change some that is brilliiant, i.e. "the h bar"

Sir Cumference

@Kenshin the h bar is commonly used

Kenshin

"the h bar " is fanstastica and while "schrodinger's chat" is good, it is not fanstatic like the hbar is

Sir Cumference

10:13 AM

It's lost its originality

anonymous

@SirCumference I liked it but unfortunately it didn't go about well :/

Kenshin

@SirCumference I've never heard "the h bar" apart from being the title of this chat

anonymous

@Kenshin See the meta post on the name change. Youll see how common it is.

user228700

Aaah, so many messages. I have to goooo to preserve my sanity! ::Runs away::

anonymous

I have seen the name being used in many places

user228700

10:14 AM

Bye, everyone :-)

Sir Cumference

@Kenshin I think it was the name of someone's university's bar here

John Rennie

@Kaumudi.H Bye

Sir Cumference

@Kaumudi.H Bye

Kenshin

welcome back @Kaumudi.H

Secret

NB, I have no idea what's the official name for that deep dark purple btw

anonymous

10:20 AM

@Secret which one?

Secret

the one I labelled "Monolith"

anonymous

Prussian Blue

Kenshin

midnight blue

why do you have a table of colours?

Secret

Because I like colors. I sometimes use the sampling tool to collect interesting color shades for analysis in my photos and my screenshots

Kenshin

which colour there is your favourite though

Secret

10:24 AM

should be quite obvious from the distribution of hues in that table

Kenshin

Which hue is your favourite though

Secret

Violet (must be the one from light, not from RGB, because RGB cannto mix that color)

Detail for table of colors: Recall I am an analysis freak thus if any topic interested me, I can turn the topic into something that look like seminar slides

John Rennie

Wow, look what I've just received in the post:

Fame at last! :-)

2

Secret

so, is his book contain legitimate physics? given the long track record that relativity is quite hard for even undergrad students

btw, how on earth did this guy knew your address?

Kenshin

wow

@Secret it's called googling

@JohnRennie you will be appropriately paid I hope?

anonymous

10:31 AM

isbnsearch.org/isbn/9780957389458

A Most Incomprehensible Thing: Notes Towards a Very Gentle Introduction to the Mathematics of Relativity

ISBN-13: 9780957389458
ISBN-10: 0957389450
Author: Peter Collier
Edition: 2
Binding: Paperback
Publisher: Incomprehensible Books
Published: June 2014
List Price: $14.99

Secret

Looks pretty legitmate

John Rennie

amazon.co.uk/…

anonymous

The reviews seem to be good!

5 out of 5 stars

John Rennie

@Kenshin he has suggested £300, but given how long it will take me to read the book thoroughly that's a lot lower than my hourly rate for hacking computers.

Kenshin

@JohnRennie yeah that's not enough you should be paid 300 plus 2% of all sales

John Rennie

10:34 AM

I won't proof read the book, but I might well invest £2.55 in the Kindle version as it does seem quite a nice book.

Kenshin

why won't you do it John?

John Rennie

@Kenshin :-) And an option on any unmarried daughters he has.

Secret

will take too long

John Rennie

@Kenshin I don't have the time.

Doing a proper proof read ona science book is enormously time consuming.

Kenshin

you don't have to do it perfectly

just make sure you have an agreement that you won't be liable for any unnoticed errors

John Rennie

10:37 AM

Sadly my conscience would trouble me were I to take that route

Kenshin

if he's not willing to have such an agreement up the price until it's worth while

oh k

I wouldn't be troubled too much, most books have lots of errors

anonymous

Peter Collier (political author)

Peter Anthony Dale Collier (born June 2, 1939) is a writer and publisher based in California. He was the founding publisher of Encounter Books in California and held that position from 1998 until he resigned in 2005. The company moved from San Francisco to New York City, and Collier was replaced as publisher by Roger Kimball. He continues as a consultant to the company. Initially allied with liberal causes, Collier has moved right and collaborated with conservative writer David Horowitz on many projects over many decades, notably as co-editor of Ramparts; and publishing articles on Horowitz...

Is he this person ^

Kenshin

@anonymous it's poor form to google another human being

anonymous

@Kenshin What ?

Kenshin

yes it's called privacy

anonymous

10:38 AM

@Kenshin I wanted to know about his books -_-

Kenshin

yes but the letter was a private letter to John

anonymous

@Kenshin The book is a famous one

I've heard of it before

Kenshin

oh k

you can be excused then

Sir Cumference

@Kenshin Google isn't exactly private

Kenshin

just becuase you have the ability to do something doesn't mean it's ok to do it

anonymous

10:40 AM

@Kenshin I don't need to be excused.

It is something very natural to do

Sir Cumference

^

John Rennie

@anonymous I don't think so. I'd guess it's a different Peter Collier. Incidentally I Googled him too - I don't see any harm in doing that.

Kenshin

@anonymous just because it's natural doesn't mean it's ok

anonymous

@Kenshin Keep your opinions with yourself. I'm not interested.

@JohnRennie Yeah, it seems so !

Kenshin

@anonymous in a chat one is entitled to share one' sopinions

John Rennie

10:41 AM

I think I'll mail him back and say I can't do a formal proof-read but I would be interested in reading a copy if he would like to send me one.

anonymous

@Kenshin Ok. I'm putting you on ignore mode.

Kenshin

@JohnRennie you can purchase a copy on the internet, no need to ask for freebees

Sir Cumference

@Kenshin Wait what

"Natural" in that sense means "okay"

John Rennie

@Kenshin I could, but if he wants to send me one I'm happy to have an informal read through it.

Kenshin

@SirCumference in my language natural and ok are differen't things

Sir Cumference

10:43 AM

@Kenshin Good to hear

John Rennie

That seems to me one of those win-win situations ...

Kenshin

@SirCumference e.g. it is often natural for poeple to cheat on others, but in society it is frowned upon

and a person might naturally kill another, but that doesn't mean it's ok

Sir Cumference

@Kenshin Clearly context is important. As I said, "'natural in that sense means 'okay'"

John Rennie

I have to say I fail to see what is wrong with Googling someone. You're welcome to Google me (though you won't find anything interesting).

3

Sir Cumference

Read how it was being used

Kenshin

10:44 AM

@SirCumference he was saying googling is a natural thing to do

that doesn't mean it's ok

it's like if you cheat on someone and then say, but hey cheating is a natural thing to do

Sir Cumference

@Kenshin Dude, stop comparing it to cheating and murder

If you put your face and name on the internet, you're giving up your privacy (in some regards)

Kenshin

@SirCumference I didn't compare cheating to murder

John Rennie

@Kenshin This seems a somewhat pedantic point. Googling someone is fine because it's fine. So it is both natural and OK.

Kenshin

@SirCumference I used cheating and murder as examples of a concept, the conept of naturality

@JohnRennie yes but if so it is a coincidence that it is natural and ok, it isn't ok because it is natural

Sir Cumference

@Kenshin Dude...

Kenshin

10:46 AM

and I didn't say it was wrong to google someone

I said it was poor form to do so

anonymous

For googling someone I'm not gonna be jailed. For murder and adultery I'll be jailed. Even if you feel googling someone is wrong I'll do it. Full stop. @Kenshin

Sir Cumference

@Kenshin Poor form =/= wrong?

Kenshin

I didn't say you would be jailed, that's called argument by exageration

Poor form doesn't equal wrong, no

Sir Cumference

Ugh

Kenshin

It is poor form to go to a wedding in jeans, but it isn't morally wrong to do so

Sir Cumference

10:47 AM

This isn't getting anywhere. Just keep your opinions to yourself and stop expecting other people to follow them.

Kenshin

I never said I expected others to show good form

I actually expect most poeple to not have good form

anonymous

@SirCumference I'll advice you to stay away from this particular debate :).

Sir Cumference

@anonymous Right

John Rennie

Is my address Googlable? Not that I care.

Kenshin

yep

John Rennie

10:57 AM

So it is. Oh well, I'll have to make sure not to annoy any psychopaths

Sir Cumference

@JohnRennie Well luckily the naked physicist is a few oceans away

John Rennie

:-) Phew!

Sir Cumference

@JohnRennie You mean IP address or actual address?

Kenshin

for those interested in John's address:

google.com.au/maps/place/…

Sir Cumference

@Kenshin Uh, that's an invasion of privacy

John Rennie

10:58 AM

That was a joke!

Kenshin

keep ur opinions to urself Sir

asnd yes that was a joke lol

John Rennie

That's a road called John Rennie road not me!

Sir Cumference

XD

John Rennie

Actually there are a lot of John Rennie's in the UK. You'd need more than just my name to find me.

Kenshin

@anonymous now that is a real invasion of privacy

please remove

Sir Cumference

11:00 AM

@anonymous Uh...

anonymous

@Kenshin I don't care. BTW that is probably not JR.

Kenshin

it is JR

so please remove

anonymous

John Rennie is such a common name

Kenshin

yes but that is this JR

so please remove

Sir Cumference

Dude, just remove it

Kenshin

11:01 AM

ok I'm flagging for moderator attention

too far mate too far

anonymous

@SirCumference Relax man. Read JR's message above. The address appears on the first link of Google Search. Anyone can find it

Kenshin

he's gonna have students knocking on his door now asking for help

John Rennie

Provided they're willing to pay me £300 a go that's fine by me :-)

Kenshin

lol

anonymous

@JohnRennie I'll visit you soon :D

When I go for a Europe trip

Kenshin

11:04 AM

wow creepy much

anonymous

Just joking :P

Kenshin

...

John Rennie

How would I know it's you? Anyone could turn up and say Hi I'm Anonymous from the PSE.

anonymous

@JohnRennie I'll change my name to my real name before I visit you. I personally want to thank you for all the help.

Kenshin

lol sorry JR

anonymous

11:05 AM

Anyway that is a far fetched plan. I don't know when I will visit Europe :)

Kenshin

this creep is actually gonna visit u

John Rennie

@anonymous hah, then I can pass on your name to the authorities hunting you for the episode involving the sheep and the shaving foam!

anonymous

@JohnRennie What? Sheep? Foam?

John Rennie

Ha! Now you're pretending to be innocent!!! You can run but you can't hide!

Actually this is all getting a bit random, and maybe I should stop now :-)

anonymous

@JohnRennie I really can't understand what you are talking about !

You've gone crazy :P

John Rennie

11:09 AM

@anonymous it had to happen eventually.

Physics does that ...

Slereah

So

Kenshin

therre are only so many brain cells and physics can use them up very quickly

Sir Cumference

@Slereah 'Morning

anonymous

I thought of visting you for thanking you for your help and giving you some presents :'D. You took it to another level XD

Kenshin

mate he doesn't want your so called "presents"

Sir Cumference

11:10 AM

Who needs sleep when you have coffee?

Slereah

$p² = (mU^\mu)^2 = m^2 U^\mu U_\mu = -m²$, per the definition of the mass

But

I want it to be in the tachyonic sector

anonymous

@Kenshin I'll force him to take :'D

Slereah

so $U^2$ should be equal to 1

Kenshin

lol

Slereah

Where is my mistake

Perhaps the mistake lies in the definition of $p^\mu = m U^\mu$

Sir Cumference

11:12 AM

@anonymous Want to see a magic trick?

anonymous

@SirCumference Don't ask me to calculations now :)

Anything else will do !

Sir Cumference

@anonymous Nah, watch this

Pick a card, any card (1-Ace, any suit)

Kenshin

yep

done

Sir Cumference

Ok, is your number prime or composite?

Kenshin

neither, I didn't picka number

Sir Cumference

11:14 AM

...

anonymous

Prime.

Kenshin

I picked a broadway card (K, Q, J..)

Sir Cumference

@Kenshin Jack = 11, Queen = 12, etc.

@anonymous OK, then cube it

Kenshin

is 1 prime or composite or neither

anonymous

Done cubed

Kenshin

11:15 AM

also done

Sir Cumference

@anonymous OK, is your suit black or red?

Kenshin

(although mine was composite)

anonymous

@SirCumference Red.

Kenshin

REd

Sir Cumference

@Kenshin Then you square yours instead

Kenshin

11:16 AM

ok

Sir Cumference

@anonymous Ok, then divide by 9

Kenshin

and me?

Sir Cumference

@Kenshin After you squared, divide by 9

Kenshin

ok

Sir Cumference

Is your number between 1-12?

anonymous

11:17 AM

@SirCumference Done

@SirCumference yes

Kenshin

mine doesn't go neatly into 9 is that ok

Sir Cumference

@Kenshin Yeah

Kenshin

mine is also between 1 adn 12

Sir Cumference

@anonymous Is your card: the 4 of hearts?

@Kenshin Is your card: the 3 of diamonds?

anonymous

3 of heart actually

Sir Cumference

11:18 AM

Wait

anonymous

3*3*3=27

Sir Cumference

crud, I'm an idiot

Kenshin

@SirCumference mine is composite remember

so mine can't be 3

Sir Cumference

@Kenshin Yeah everything got all confused

Slereah

Ah, I think I know

Sir Cumference

11:18 AM

I switched your numbers

OK, once more

Slereah

Obviously $p \neq m U$, since $m$ would be imaginary

Sir Cumference

@anonymous @Kenshin Pick a card, any card:
🂠 🂠 🂠 🂠

Kenshin

yep

mine is composite

anonymous

Let kenshin play

Sir Cumference

then square it

anonymous

11:19 AM

I'm a bit busy

Kenshin

and mine is red

yep i've squred it alreayd

Sir Cumference

divide by 9

Kenshin

yep

Sir Cumference

is your num between 1-12?

Kenshin

yes

Sir Cumference

11:20 AM

Is your number: the 7 of spades?

Kenshin

no I said it was red

spades is black

Sir Cumference

dammit I'm an idiot

Kenshin

lol

Sir Cumference

Well I gotta get my work done

Kenshin

cool trick bro

Sir Cumference

11:22 AM

@Kenshin It was random guessing ;)

Kenshin

lol obviously

Sir Cumference

Aw, I thought it could be convincing XD

anonymous

@SirCumference It is indeed a magical way to prove that you are an idiot. XD

Kenshin

lol na it's impossible for u to differentiate hearts and diamonds

so that alone made it obvious you were just guessing

Sir Cumference

DHMO didn't fall for it whatsoever

Feb 2 at 6:13, by Sir Cumference

is your card the 3 of clubs?

Feb 2 at 6:13, by DHMO

of course not...

anonymous

11:25 AM

@SirCumference Even he did at first. Later he realized.

He did all the calculations

the first time

Slereah

Welp

I believe I'm gonna have to rederive the stress energy tensor from scratch

To make sure all is well

Kenshin

@Slereah then do it, don't talk about it

Slereah

Rude

Kenshin

mate it just sounded like you were complaing about it and you'd never get it done

anonymous

@Slereah Kenshin seems to be a bit cracked today. Ignore :P.

Slereah

11:27 AM

It's not the most fun

Sir Cumference

@Kenshin Chill

Slereah

but not too complicated

Kenshin

@anonymous Rude

Sir Cumference

@JohnRennie I've never heard of someone being picked for such a task solely from their fame on SE

John Rennie

@SirCumference I was a bit surprised.

Kenshin

11:30 AM

happens to me all the time

John Rennie

Though it does look like an interesting book.

Sir Cumference

It's quite the honor. You should negotiate the price with him, it might be worth the time

anonymous

@SirCumference Some people get even jobs due to their rep on SE.

That's why SO started the jobs section

Kenshin

@SirCumference while it may be an honour, I don't think we can decide if John should do it or not

Slereah

Hm, should I use the classical point particle action if I use arbitrary mass or the whatchamacallit

Sir Cumference

11:31 AM

@anonymous And here I am, giving my rep to people who delete their accounts like Obliv, @obe, etc.

(no offense ;) )

Slereah

The Polyakov action

anonymous

@SirCumference Building rep is actually very easy. But I don't have much time to spend :P

Kenshin

@Slereah i think ur on the right track

Sir Cumference

@Kenshin Of course it's his decision, I was just suggesting

@anonymous I've built a ton of rep on Astro, but that's all I really care about/am good at

Fduck, I need to be working

anonymous

@SirCumference Bye. See you. Even I gotta go!

Slereah

11:42 AM

I believe I have found the issue

The point particle action is $-m\sqrt{-\dot X^2}$

Changing it into a tachyon one should be something of the form $\sqrt{-m^2 \dot X^2}$

Or something, I dunno

I suspect there's a sign that flips somewhere in there

Hence the change in the definition of the momentum

user228700

Can somebody please ping me?

John Rennie

@Kaumudi.H PING!

@Kaumudi.H testing AirDroid?

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