The h Bar

0celoñe7

12:03 AM

What?

skullpatrol

You asked, "How am I suppose to read 10, 000 pages of math books?"

These are not novels or short stories @0celoñe7

ACuriousMind

It's good you clarified that, I'm sure the mathematics student was very confused about the nature of math books.

0celoñe7

@skullpatrol there are certain classic books in my field, and I'm supposed to read them. Even if I did nothing else but read, it would take a LONG time. I don't understand how one is supposed to do it

heather

read them, or "read" them?

0celoñe7

And that's not even counting the 40 classic papers my advisor wants me to read too

@heather It's a mixture of both

I'm trying to develop the skill of knowing what's parts of a book to read and what parts to "read"

skullpatrol

12:14 AM

"Knowing is half the battle."

0celoñe7

@skullpatrol I tried that once

skullpatrol

Tried what? @0celoñe7

DanielSank

Doing SCUBA certification course work. Being a physicist helps.

All the questions are about buoyancy and pressure changes.

0celoñe7

@DanielSank does phdcomics.com/comics/archive.php?comicid=1356 not apply to physicists?

skullpatrol

Note: the vertical axis is not labeled^

heather

12:34 AM

i'm way too tired

i didn't realize i talked in here just ~15 minutes ago =P

skullpatrol

Do you have a pet octopus? @DanielSank

DanielSank

@0celoñe7 Haha that is so accurate.

Just this morning I mentioned how doing research makes me loath basic mental math.

skullpatrol

Aren't you suppose to be on vacation? @heather

DanielSank

@skullpatrol No. I'm sort of afraid of pets.

I'd mostly rather nonhuman animals be left alone in the wild.

Octopuses are particularly difficult to keep at home, and they don't live too long even with good care.

0celoñe7

Nonhuman animals?

Do you mean nondomesticated?

DanielSank

12:39 AM

@0celoñe7 Sure, I suppose that's slightly more accurate.

I am generally ok with e.g. dogs.

skullpatrol

Having a fish tank is not much work.

If you're into sea creatures.

DanielSank

@skullpatrol Salt tank...

skullpatrol

Right.

DanielSank

Those are work.

And fragile.

skullpatrol

Hmm, good point.

DanielSank

12:47 AM

You need pumps, filters, and regular maintenance.

skullpatrol

Yeah, easier to just go out and swim with them :-)

heather

@skullpatrol yeah, why?

skullpatrol

You said you're tired?

DanielSank

@skullpatrol Correct.

heather

a little bit, yeah @skullpatrol

oh, I saw something interesting about octopi in a optics book today @DanielSank

> Many animals can see variations in polarization just as we see variations in color. The pygmy octopus is one such creature. The varying pattern of polarized light reflected from its surface suggests it might be "communicating" with other pygmy octopuses, the way birds display color.

DanielSank

12:53 AM

Yeah, octopuses are pretty awesome.

dmckee

@EmilioPisanty Gack! Phsssst!

heather

yup.

dmckee

To the day I (a) feel that I was right on the matter and (b) wonder if I acted correctly in my role as moderator.

I remember it, all right. But I'm not sure I would say "fondly".

skullpatrol

a > b

(a) > (b)

heather

good night =)

skullpatrol

1:00 AM

Cya pal

skullpatrol

1:14 AM

If you feel strongly enough about (a) @dmckee, then (b) doesn't matter.

Mind over matter :-)

Btw, if you have any free time during your mat leave, please consider doing an AMA.

skullpatrol

1:37 AM

@0celoñe7 you should ask your advisor for advice on how to read all that math.

0celoñe7

2:25 AM

@ACuriousMind ME:A is on sale, but I've only heard bad things about it :/

@ACuriousMind o.o

literally a second class citizen

0celoñe7

3:53 AM

-1

Q: How much "earth" does it take to create an "earth ground" for measuring voltage?

I was contemplating the idea of a multi-meter that had a "built in" Earth ground to it, and if it did have this ability how much earth/dirt would it take to register as a true Earth ground to register voltage of 120v when touching a standard household outlet. I imagine it'd be either a) a massive...

voltage

amazing

@JohnRennie Morning

user228700

5:31 AM

Hi, everyone.

0celoñe7

Smoothie being up means it's time for me to sleep

user228700

Lol, yes. I've been up for quite some time now, actually; managed to wake at 5:45 AM today!

user228700

(On second thought, smoothie isn't that bad of a nickname)

The Raiders of Las Vegas

I like it.

hi, btw

user228700

Hi :-)

John Rennie

5:40 AM

Morning

user228700

Hi!

John Rennie

5:45?

user228700

> I actually managed to wake at 5:45 AM today!

John Rennie

That's faaaaaaaaaaaar too early

user228700

@JohnRennie YES! :-)

John Rennie

5:41 AM

Unless you're a computer nerd of course

user228700

@JohnRennie Oh, look who's talking!

John Rennie

We're exempt from the standards that apply to normal humans

That includes the dress code and diet as well :-)

user228700

Ah, I see. Well, the plan is to wake at 5:45 everyday, even on weekends. Seeing as I have been sleeping for 11 hours every night and college starts in a week, I figured that I might as well settle into this schedule starting now.

user228700

@JohnRennie :-)

John Rennie

Makes sense I guess, though will you really be getting up at 5:45 at college?

I'd have guessed seven a.m. was a more reasonable target ...

user228700

5:44 AM

@JohnRennie Yes, yes, one can hope!

user228700

@JohnRennie My classes in the first year are from 8:30 AM in the morning till 3:30 PM (we have breaks in b/w, of course). Second year onwards, it shifts by one hour-to the right.

The Raiders of Las Vegas

11 hours every night? :O

John Rennie

@Kaumudi.H As I recall my undergraduate lectures started at 9 a.m. and ran until 1 p.m. then we had labs from 2 to 5 on three afternoons.

user228700

@TheRaidersofLasVegas Yep.

user228700

@JohnRennie Ah, I see :-) Sounds similar to the schedule they have at IISER here.

0celoñe7

5:47 AM

How is that even possible

You can't even read books if you sleep that much

user228700

@0celoñe7 What's ur point? :-P

user228700

Do u remember this:

user228700

Apr 15 at 5:45, by Kaumudi. H

@0celouvsky After JEE, I am sleeping for 10 days straight, that's what I'm doing.

user228700

And that is what I've been doing for the past month.

John Rennie

I used to sleep for longer than eight hours as a teenager. If you add in dozing as well as deep sleep I probably managed twelve hours a day during the holidays.

user228700

5:48 AM

Lol x'D

The Raiders of Las Vegas

How about now? @JohnRennie

user228700

Hey, I posted that message at 5:45! (Albeit, PM).

John Rennie

The remaining 12 hours of the day are plenty long enough for the key tasks like watching TV and pestering Mum to make me something to eat.

user228700

^

0celoñe7

@Kaumudi.H you could learn some math if you slept only 7 hours

John Rennie

5:51 AM

@TheRaidersofLasVegas I sleep about eight hours a night these days. But my schedule has shifted so I go to sleep about 9 p.m. and wake up about 5 a.m.

user228700

@0celoñe7 The goal was to rest and not to work very hard at anything at all. I think I've accomplished that quite nicely.

The Raiders of Las Vegas

^

You earned it.

user228700

Haha, thanks :-)

The Raiders of Las Vegas

How did you rank on the JEE?

user228700

@TheRaidersofLasVegas ::Slips quietly out:: :-P

0celoñe7

5:52 AM

Well, I should probably sleep...

The Raiders of Las Vegas

(If you don't mind me asking :-)

user228700

@0celoñe7 'Night :-)

user228700

@TheRaidersofLasVegas I didn't even write the second test, man.

The Raiders of Las Vegas

What does that mean? @Kaumudi.H

Only the top x% write it?

x = ?

user228700

@TheRaidersofLasVegas Well, JEE comprises of two tests, taken with a gap of 1 month in between. I wrote the first one, did qualify to write the next but didn't because, well, that story is far too boring and morbid to relate here.

user228700

5:55 AM

@TheRaidersofLasVegas Oh, there's a cutoff in marks each year.

user228700

Say, are none of you even the remotest fans of Linkin Park?

John Rennie

@Kaumudi.H No

The Raiders of Las Vegas

Nope.

user228700

:-/ I was an avid fan of theirs for about a month when I was 13.

The Raiders of Las Vegas

Their voices bug me.

John Rennie

5:57 AM

Then you grew up :-)

user228700

No, even though I don't listen to them anymore, I do believe that some of their songs are pretty good.

John Rennie

The nu metal scene always felt a bit puerile to me.

Having grown up in the Zeppelin, Sabbath, Purple era then moved on to NWOBHM.

user228700

Right. Well, Linkin Park was one of the first bands of which I became an avid fan.

John Rennie

Well you were 13 - that's about Linkin Park's target demographic :-)

user228700

And now, having listened to Numb a few times this morning after hearing the news, I've got it stuck in my head.

The Raiders of Las Vegas

6:01 AM

Isn't there a cartoon with a similar name?

John Rennie

News? Google, Google, ah ...

user228700

@JohnRennie It is literally the first piece of information that greeted me this morning.

user228700

@TheRaidersofLasVegas No idea.

John Rennie

I've been avoiding the news media recently because the state of British politics is so bad I don't want to hear anything about it. That means I miss non-political news as well.

user228700

Oh, wow, I see.

user228700

6:03 AM

This morning, I also found out that rubbing cinnamon on your face will make it burn like hell.

John Rennie

It's not bad as in corrupt - more fundamentally incompetent.

@Kaumudi.H Cinammon?

user228700

@JohnRennie I don't think I'm capable of conversing with you about this; I don't read the news either but that is because I'm quite lazy.

John Rennie

Cinammon oil?

user228700

@JohnRennie Yes. I powdered it using a mixer and mixed it with some honey to make a paste for my acne ridden face. Suffice it to say that I stifled my scream as best I could when I left it on for about 5 seconds.

John Rennie

Try a mixture of raw garlic and chilli instead :-)

The Raiders of Las Vegas

6:07 AM

South Park <---that's it :-P

user228700

Lol.

user228700

@JohnRennie :-( It really did hurt. "Heal acne/scars" is on my to-do list, you see.

John Rennie

There isn't a lot you can put on skin that will improve it. Skin has evolved to be pretty good at protecting itself.
(I speak as one who worked in the skin care group at Unilever Research)

Petroleum jelly (vaseline) is about the only thing that helps significantly, and all it does it protect the skin from external irritants.

user228700

:-/ Well, I looked it up and it seems that steaming your face does help for reasons including-but not limited to-opening up the pores, whin in turn flushes out the toxins. Or...something.

The Raiders of Las Vegas

Acutane is extremely potent.

John Rennie

6:12 AM

You'll find all sorts of crap about skin care on the Internet, mainly because multinationals make a fortune selling skin care products and it's in their interests to foment such stories. And, yes, Unilever is one of those multinationals.

user228700

No, I only looked up homemade "recipes".

John Rennie

Which might make you wonder why I was willing to work there for twelve years. Well it turns out that selling your soul isn't so bad if you get a good price for it :-)

user228700

:-)

John Rennie

If you think that the homemade recipes are uninfluenced by the multinationals then I'm afraid you're in for a disappointment. Bear in mind some of these companies have been at it for a century. That's lots of time to influence popular culture.

user228700

Hmm, I...see.

John Rennie

6:20 AM

I'm not sure acne is really understood even today. It certainly wasn't when I was working at Unilever. Why some people are so badly affected while others aren't remains a mystery. My brother and I were among the lucky ones.

user228700

And I'm not :'-( It sucks.

John Rennie

Bad acne is so horrible that people desperately want there to be a cure so they grasp at straws. That's why there are so many apocryphal cures around.

Yashas

I read somewhere that having acnes is a good indication of something.

kcl.ac.uk/newsevents/news/newsrecords/2016/09%20September/…

John Rennie

But I don't think there are any reliable cures. TRLV mentioned acutane, but that's a serious drug with dangerous side effects, and even it isn't a reliable cure.

user228700

@Yashas Well, the scientists (aunties) around these parts insist that a pimple is the sign that someone is thinking of you x'D

Yashas

6:23 AM

...

user228700

I only mean to call attention to just how scientific and driven by data some Indians are :-P

Yashas

That happens in every country I guess

user228700

We are known to be especially superstitious but yes, I guess.

Yashas

lot of pseudo scientists

John Rennie

Hypothesis: cinnamon cures acne
Method: apply cinnamon to skin
Results: Aaaaaaaaaaaaaaaaaaaaaaaaarrrrrrrrrrrrrrrrrrrrrrghhhhhhhhhhhhhhhhhh!!!!!!!!!!

user228700

6:24 AM

:-P It was painful OK? Quit making fun of it!

John Rennie

Conclusions: don't apply cinnamon to skin :-)

user228700

@Yashas Oh, no, I didn't mean pseudo scientists; I was using the term scientist to refer to aunties to be sarcastic.

user228700

@JohnRennie Seriously. Please don't. Well, unless you are craving for that sort of burning pain.

John Rennie

@Kaumudi.H Sorry :-( Anyhow I need to work for half an hour or so.

user228700

:-) Wokay, toodles!

John Rennie

6:27 AM

I wonder if cinnamon is a terpene. Most terpenes are pretty nasty in concentrated form.

Yashas

Minister-led panel on cow urine to meet

@JohnRennie I think so. I remember studying about cinnamic acid, cinnamaldehyde, etc. I am not sure if these compounds are found in cinnamon.

let me check

I know a double bond is found after dehydration step

:|

it has been just two months and I have already forgotten a lot :/

botanical-online.com/english/cinnamon.htm

idk if the presence of a terpene structure in a molecule makes it a terpene

ugh I am completely wrong :D

John Rennie

6:47 AM

Wow, I have two servers with failed disks this morning. Oh well, it makes for some excitement I suppose :-)

John Rennie

6:59 AM

@Yashas ah, it has lots of terpenes in it then. But then pretty much everything that is spicy or smelly has terpenes in.

Sid

7:16 AM

@Kaumudi.H .... what?

Hehe, one of our "reputed" journalist did an AMA in Reddit.

I leave it to your imaginations as to how it went.(Spoiler-He got toasted big time)

(It was two months ago, btw)

user228700

Ah, you mean Arnab Goswami.

user228700

@Sid Wut?

Sid

Still in shock of your scientists conclusions from pimples

user228700

My scientist?

user228700

None of my own aunts (to their credit) have ever spewed such nonsense but I have heard it from others.

Sid

7:29 AM

Yeah, well in India, Friend's aunt= My aunt. :P

user228700

^ Exactly.

Anonymous

~~Ironically~~ Coincidentally I'm at a dermatologist's clinic right now waiting for my turn. XD (Logged in just now and saw Kaumudi's discussion about acne and skin care :P)

user228700

Haha :-)

user228700

@JohnR: I have a quick question about piracy; do u have a minute?

John Rennie

@Kaumudi.H Yes. Here or gchat?

user228700

7:34 AM

Gchat!

Anonymous

Ah...need to wait for 2 more hours here ;-; I'm so bored ! So much crowd!

user228700

2? Wow.

Anonymous

Yeah...the doc's assistants are saying so :P

Sid

I sometimes feel lucky that I have never had much skin problems..

Anonymous

I don't really have any major skin problems. Just some tiny dark spots on face :D My mom forced me to visit the doc...that's it XD

Anonymous

7:46 AM

user228700

Omg.

Anonymous

Lol...me clicking random pictures here :D

Sid

That hospital seems like they take a lot of money from you...

Anonymous

Rs. 2000 per visit XD

Sid

holy...

I love the fact that I get charged Rs. 0 whenever I am sick. :P

Anonymous

7:50 AM

@Sid Haw?

Sid

(Dad is a doctor. That helps. :P)

Anonymous

Oh, wow ! Yeah, every family should have a doctor and a lawyer/cop. Helps a lot :D

Anonymous

What is your father's specialization? @Sid

Sid

Chest Physician.

Anonymous

Awesome :)

Yashas

7:56 AM

@Blue how many minutes?

Anonymous

@Yashas I don't think they count minutes. Who does that? :P

Yashas

@Blue approx

user228700

@Yashas What does it matter? It's a dermatologist. If it were a therapist or something, then it would be a different case entirely.

Slereah

tandfonline.com/doi/full/10.1080/01419870.2017.1285040

Anonymous

Approx each person here is taking 5-10 minutes. At present around 30 people are in front of me in the waiting list.

Yashas

7:59 AM

I wanted to calculate $ per minute

200 rs per minute? :O

Anonymous

This doc is probably a millionaire :'D

Yashas

Hospital takes a cut

30 people * 2000 = 60,000 per day!

18 lakhs per month

that is enuf to pay for my UG + PG college fees :O

user228700

@Yashas And you should be so lucky! My friend studies at VIT and her total fees for UG is 16 Lakhs :-o

Sid

@Yashas They still have to pay the staff..

Anonymous

My college fees for 4 years is less than Rs. 10 k. Hehe:D

Yashas

8:04 AM

o0

Many students at IIITH take part in GSoC and make up for the fees they paid :P

user228700

@Blue Wtf? How is it lesser than 10k?!

Yashas

some actually make money :P

Anonymous

@Kaumudi.H Google search JU fees. It's fully government funded :)

user228700

Wow, I see.

Anonymous

That's one of the reasons I left Bits Pilani for JU :P

Yashas

8:07 AM

why do they charge 200?!

I don't get the point

can make it completely free

INSTITUTE FEE
Particulars Amount
For Engineering Courses Other than Information Technology ₹5,710 (fees for two years)
For Information Technology ₹30,860 (fees for one year)

HOSTEL FEE
Particulars Amount
Hostel Fees (inclusive of Mess Advance) ₹3,000
Monthly Seat Rent ₹15
Monthly Electricity Charges ₹10

Anonymous

@Yashas Maybe they have chai-sutta with that amount:P

Anonymous

BTW I don't have to pay hostel fee

Yashas

becaz u aren't staying in the hostel?

Anonymous

Yeah

Yashas

5 more days before I leave home :/

Anonymous

8:11 AM

Aw...you will miss your kittens :)

Yashas

and everything else :'(

Sid

@Yashas 2 more days for me... ;(

Yashas

@Sid where are you joining?!

yours starts on Monday, I see :p

Anonymous

On the other hand I'm very happy to be away from home. :P

Anonymous

Don't know why

Sid

8:13 AM

@Blue A part of me is happy too, though. :P

Anonymous

Feels like a new adventure :)

Yashas

No laptops allowed for first year students at my college :/

Sid

@Yashas Classes start on Thursday. Orientation on Wednesday. I am going on Monday to just have a "feel" of it.

Anonymous

@Yashas ugh....that's cruel...who made that stupid rule ?

Yashas

I already toured the campus in June :P

@Blue There are only 250 students in my batch (inclusive of all branches). They want students to know each other.

Sid

8:14 AM

Jul 11 at 13:46, by Sid

Hey @Yashas ! Well, in JOSAA, I have got NIT Rourkela Electrical Engineering. Might join that.

Anonymous

@Yashas Laptops will help them keep in touch with each other via social network. You can't regurlarly meet every other student personally

Yashas

we have morning excerises

starts at 6AM

will meet everybody

Sid

lol. Good luck

John Rennie

It's all getting scarily close for the Indian students then?

Sid

In these days I actually sleep at 6 AM

Anonymous

8:15 AM

Lol...is this an extended school or what ? @Yashas :P

Anonymous

Morning exercises and all :D

Yashas

@Blue idk

it's good though

you should check the IIITH FB forum

all students are good

Anonymous

@JohnRennie Yeah...hehe :D

Yashas

some students even get out of the hostel and go to the admission office if u ask them to check ur app status

very kind people

IITs and NITs are filled with goons

ragging and shit like that

Anonymous

@Yashas I know I know...the students are obviously good :)

John Rennie

8:17 AM

@Blue I envy you! Going to university was the most exciting part of my life. It's unlikely life will ever be that exciting again.

Anonymous

@Yashas hey...that's not true

Anonymous

@JohnRennie hehe....looking forward to it :P

Yashas

@Blue idk but I am sure IIITH is far better than IITs/NITs when it comes to discipline

Sid

@JohnRennie How was your first day in Cambridge, if you remember? (Peterhouse, wasn't it?)

Yashas

I know a lot of shit that happens at NITK becaz my mom was there

Anonymous

8:19 AM

Do you visit Cambridge from time to time ? @JohnRennie

John Rennie

@Sid I spent most of the first day finding it hard to believe I was actually there!

Anonymous

@JohnRennie "hard to believe"...why?

John Rennie

@Blue I've been back occasionally, but the most important part of being there was all the friends I made and of course they are no longer there. These days it's just a town with a university that I once went to.

Sid

@JohnRennie How long ago was it? 40 years?

John Rennie

@Sid I started my undergraduate degree in 1980 and finished my PhD in 1986.

Yashas

8:23 AM

o0

@JohnRennie did u get a masters degree?

Sid

@JohnRennie Clearly you are quite smart(If that was not common knowledge already)

John Rennie

@Sid Lots of people have PhDs :-)

Sid

That quick? I would say not many. :-)

John Rennie

@Yashas For the science courses at Cambridge the masters degree doesn't really exist. I do have a masters, but I think PhD students got it automatically if you survived the first year.

I don't remember anyone enrolling to do a masters.

It might be different for other departments like the business school

Anonymous

@JohnRennie umm...you could keep in touch with them on Facebook or something ? (I know that's difficult though...i don't have contact with most of my school friends even :p)

John Rennie

8:26 AM

@Blue Yes, I'm still in touch with lots of my friends from university days, and yes it is mostly through Facebook :-)

We used to get together once a year to go on a walking holiday, but as people got older and started families that tailed off.

Anonymous

Hehe..that's nice! We should be thankful to Zuckerberg :)

Dawood ibn Kareem

From Medical News Today: "Cinnamon can also be highly irritating to the skin. For this reason, it is important to always use a test patch on the hand before applying the honey and cinnamon face mask to the entire face." @Kaumudi.H

Anonymous

@JohnRennie I get it :/

Mithrandir24601

@JohnRennie if you're referring to the MA, it's slightly different now in that there's also an MSci, which a lot of people do (I didn't) as well as the usual BA-MA thing

John Rennie

@Mithrandir24601 ah, yes, I did mean the MA. I didn't know there was now a separate master of science course.

Anonymous

8:31 AM

I plan to take up a masters before commiting to a PhD. Apparently it takes a lot of will power and persistence to get through a PhD!

Anonymous

It's good that most good universities are starting to have master's courses

Mithrandir24601

@JohnRennie yeah, there's now the MSci and a MASt (advanced studies, which is pretty much a conversion Masters like an MPhil)

John Rennie

@Blue the PhD was all I ever wanted to do, and I loved every moment of it. If you really want to be a scientist then I don't think doing a PhD will be that hard.

Mithrandir24601

@Blue I'm nearly finished my first year now and loving it so far! :D

John Rennie

If you just want the letters after your name then I agree that years of hard work and no money are likely to be difficult.

The thing about the PhD is that for the first time it's your research.

You're not just doing someone else's course work any more.

Anonymous

8:37 AM

@JohnRennie I actually have some entrepreneurial ambitions (related to science and technology) and plan to self teach myself whatever physics and other sciences I need on the way. I don't really want a PhD just for a title's sake. But I don't know. I might change my mind some day. As for now, I want to learn whatever comes my way. :)

John Rennie

@Blue in that case I suspect you might find doing a PhD slow and frustrating ...

The Raiders of Las Vegas

Why didn't you continue with your research after you received your degree?

Anonymous

@JohnRennie Maybe...that's why enrolling in a master's course would be more helpful and give me sufficient time to decide my career path :)

John Rennie

@TheRaidersofLasVegas At that time there was a shortage of jobs in academia. Lots of people ended up with ten years of short term postdoc contracts behind them and still no secure job. I sold my soul to industry instead. Less rewarding but more money!

The Raiders of Las Vegas

I see.

Sid

8:42 AM

@JohnRennie Isn't there shortage of jobs all the time in academia?

John Rennie

@Sid these days yes. Back in the day (60s and 70s) you could be pretty much guaranteed of a job in academia if you were willing to work for it.

The Raiders of Las Vegas

If you're in it for the money @Blue go for a Masters of Business Administration.

Sid

That is also why you see a lot of people in industry/services sector rather than in academia.

Anonymous

@TheRaidersofLasVegas I'm not really in for money. I want to have a more direct impact on people's life and improve the condition of science and research in my country. Most people here are scared to take up pure science in our country for the lack of money. I want to change that and make science an exciting career option.

Yashas

Become the Tyson of India :P

Sid

8:48 AM

@Blue Join politics. You will be able to do all that. :P

Anonymous

I might need an MBA degree on the way...but that's another story

Anonymous

@Sid Not so easy without family contacts :P

Anonymous

@Yashas My role model is Musk :)

Sid

@Blue Heh, all you have to do is go to Delhi and raise some slogans. The media will be running to cover you in Prime Time.

Yashas

Politics after science is good I think. I strongly believe that the future voters will be voting for scientists because they are tired of...

Elon Musk should run for president!

Anonymous

8:51 AM

@Yashas I'd definitely support that

Yashas

Scientists will rule a country better than pure politicians.

Anonymous

@Sid lol :P

Sid

And then, Headlines will be like: "A new Political leader is born", "India's future leader", etc..

Yashas

:D

Anonymous

9:09 AM

@Yashas The doctor took only 1 minute to check me and another 1 minute to write a prescription. Rs. 1000/min :P

skullpatrol

How long did you wait?

Anonymous

Around 1.5 hours

Anonymous

Maybe 2..not sure

skullpatrol

Not too bad.

Slereah

9:42 AM

APL is a pretty strange language

Here's an APL function : fib ← {⊃(+/,⊃)⍣⍵⊢1}

John Rennie

One of many write-only languages ...

Slereah

I'm trying to parse it but it's not very easy

⍣ doesn't seem defined in the manual and the way ⊢ works here doesn't seem to match the documentation

" These Greek philosophers accepted our fundamental experience of local linearity of time but they compactified the time line to a time circle."

2

Greek philosophers loved one point compactification

Emilio Pisanty

9:58 AM

whaddaya know

ShareLaTeX is joining Overleaf

Secret

[Random] A toy model of a nonunitary(?) process:

ACuriousMind

@Slereah Do you want to get active on Programming Puzzles & Code Golf, or why are you looking at APL? :P

Slereah

@ACuriousMind Bored in class

So I'm doing things

ie the gravitational simulator

Secret

Consider two particles $\lvert A \rangle$ and $\lvert B\rangle$. Upon "collision"(scattering(?)), the resulting states are $\lvert A_i'\rangle$ and $\lvert B_i'\rangle$, where $i$ is some number taken from a probability distribution $i=P(j)$. We suspect that the dynamics of this system will be modelled by mixed states, and the interaction operator $U(0,t;i)$ is inherently probabilistic. To be checked...

(NB not assuming QFT here, cause I still know nothing about it)

ACuriousMind

10:15 AM

@Secret Please, if you want to communicate to other people, start using standard notation and defining your notation when you don't. Why are there primes on the states after collision? $\lvert A_i\rangle$ would already have been sufficiently different from $\lvert A\rangle$.

2

What does $i = P(j)$ mean? What is $j$? If you mean to say that $i$ is drawn from a probability distribution $P$, then you just say that it follows $P(i)$, what is the $j$ doing there? What does "dynamics will be modelled by mixed states" mean? Is "the interaction operator" supposed to be the time evolution that leads to the states labelled by $i$?

Secret

I was not aware that $A_i$ is different from $A$ as symbols that has subscripts usually mean it is a component of the thing in question. Anything else I will clarify after I get back home to my computer

ACuriousMind

@Secret Well, subscripts mean components when it makes sense that they are components. Since you didn't decare $A$ to be a vector or anything, that wouldn't have made any sense at all.

Secret

Ah ok, so I guess I don't need to use primes to denote the final states are different from the initial states and the subscript i will suffice

ACuriousMind

@Secret You see, there's no general principle that you have to denote things after a collision with primes. It's just often done because people are too lazy to think about new symbols, so they use $p,q$, etc. for the things before and $p',q'$, etc. for the things after collision. I've noted a tendency in your posts where you keep adding superfluous primes to "results" of some interaction (I recall e.g. one $A''''$), it's unnecessary and just clutters your notation in the eyes of others.

Slereah

I need to add the requirement that the random particles created have the barycenter at the middle of the screen I think

Otherwise it gets shit

Secret

10:30 AM

Ah I see, now I understood the story behind it. I think I should be able to use better notations from now on

Physics Meta

11:31 AM

0

Q: Query regarding review of post flags

Suppose I have flagged any question or answer by a person with high reputation or any moderator, as inappropriate (or any other flag). As far as I know, it will be placed in the review queue. Now, anyone with high reputation or a moderator can access these queues. Then, will that person be able t...

discussion flagging

Slereah

11:53 AM

@0celoñe7 For the Kriele theorem on Lipschitz continuous causal curve, is this more general than simply piecewise continuous causal curves

Are there any Lipschitz continuous causal curve that isn't piecewise $C^1$ causal

Transcript for