The h Bar

Jaime Gallego

8:02 PM

Got a Philosophy exam on Friday

shudders

Sleep deprivation + trying to understand Kantian metaphysics = not good

skullpetrol

Logic?

Jaime Gallego

I wish

Though reductio ad absurdum proofs are in the examination

skullpetrol

Well, memorize the rest :P

Jaime Gallego

I doubt it :(

AccidentalFourierTransform

8:17 PM

@JaimeGallego I forgot, you're on your second year of bachiller, right?

Jaime Gallego

First

AccidentalFourierTransform

hmm so why are you studying Kant?

I dont think I did study him on my first year

well maybe, I dont remember :-P

Anonymous

Is it compulsory or something ?

AccidentalFourierTransform

yep

Jaime Gallego

Yes. It is mandatory even in the Sciences branch

Anonymous

8:19 PM

I would hate studying philosophy for an exam

Anonymous

I hope I will have an option to opt out if I have it in college this year

AccidentalFourierTransform

philosophy is fun :D

(it really is)

where are you from?

Anonymous

Exactly, philosophy is something I read for recreation...I wouldn't want that to be converted into yet another testing system....

Anonymous

@AccidentalFourierTransform India..

Anonymous

Will go to college this year (first year of btech)

AccidentalFourierTransform

8:22 PM

ah, here in this chat it is usually safe to assume that everybody is an 18-year-old boy from India :-)

and you want to study physics?

or mathematics?

Anonymous

@AccidentalFourierTransform I'm 17 =)

Anonymous

@AccidentalFourierTransform I am opting for engineering :-)

AccidentalFourierTransform

oh :-(

then get out

you are not welcome here ;-)

Anonymous

I love both Physics and Engineering :)

Anonymous

And maths too

Anonymous

8:24 PM

I wish I could take all 3

0celo7

Engineers are the worst

AccidentalFourierTransform

I knew I guy that took math, physics and engineering

the three of them at the same time

0celo7

At least engineer math isn't as bad a physicist math

AccidentalFourierTransform

I only saw him two or three times, and he was in my class

Jaime Gallego

He triple majored?

AccidentalFourierTransform

8:25 PM

I dont know what happened to him though

maybe he ded

Anonymous

I would triple major if I had the choice, really! There is no course like that here :/

Anonymous

I am confused between physics and engineering

Anonymous

but then I decided to go with the latter

Jaime Gallego

Feb 18 at 0:00, by DanielSank

Why? Because if you pick physics you get to do engineering and math anyway.

Anonymous

@AccidentalFourierTransform You are from?

AccidentalFourierTransform

8:26 PM

FWIW physics suck

@Mystic Spain

Anonymous

@JaimeGallego If you do engineering you get to do Physics and Maths too!

Anonymous

I hope to get a Physics phd after completing my engineering

Anonymous

Many electrical engineers get a physics phd later on

Anonymous

and many mechanical engineers too

AccidentalFourierTransform

(and even some mathematicians)

Anonymous

8:28 PM

@AccidentalFourierTransform That's a little difficult but yeah..

Anonymous

@AccidentalFourierTransform You are a master's student I guess?

Anonymous

Or phd student?

AccidentalFourierTransform

master, yes

Anonymous

Oh, what subject? (I mean be specific!)

Jaime Gallego

@Mystic It depends. Applied mathematicians are qualified for many areas of physics.

Anonymous

8:30 PM

Any specialization?

AccidentalFourierTransform

theoretical physics D:

Anonymous

@JaimeGallego Yeah,I said the same thing

Anonymous

It is a bit difficult though

Anonymous

because you need to learn several things before you join a physics phd

Anonymous

being a maths student

Anonymous

8:31 PM

@AccidentalFourierTransform Wow :D That is one of my interests too =)

AccidentalFourierTransform

it is a very interesting though rather useless subject

Anonymous

It doesn't have jobs =P But has tremendous potential

Anonymous

Do you plan to join a corporate job later or do research ? @AccidentalFourierTransform

AccidentalFourierTransform

idk, research sometimes it feels like an intricate circlejerk tbh

people working on useless material that only gets read by other people working on useless material

with no ultimate purpose beyond getting paid

Anonymous

LOL XD

Anonymous

8:35 PM

You sound grim

AccidentalFourierTransform

most research papers will never be useful to anyone but the three or four people that are interested in the topic

Jaime Gallego

simpsons-funny scene-grad students.mp4

►

Anonymous

@AccidentalFourierTransform If you were given another option to go back 10 years and choose another career would it still be theoritical physics ? =)

Anonymous

Or something else?

AccidentalFourierTransform

@Mystic ah, tough question

that is something I dont really want to think about :-)

because it saddens me a bit

Anonymous

8:38 PM

good...your sentence made it seem like you are not happy with your choice =)

AccidentalFourierTransform

Im not sure, maybe not

Anonymous

anyway lets leave that topic

Anonymous

its too touchy

skullpetrol

That's the third blonde gif you've posted in here.

AccidentalFourierTransform

I found out that I really enjoy coding, so maybe I would have been very happy if I had studied something computer-related

Jaime Gallego

8:39 PM

Then again, industry has its downsides too. Grass always looks greener on the other side.

AccidentalFourierTransform

not that Im unhappy now, but you know, maybe happier :-)

Anonymous

The last blonde pic was better =D

Anonymous

The taylor swift one :P

AccidentalFourierTransform

Anonymous

Its getting worse ^

Anonymous

8:41 PM

LOL

Anonymous

8:54 PM

@JaimeGallego At what level are you studying ? Masters? Phd?

Anonymous

I see even you are from Spain!

Jaime Gallego

I am at high school, I'm 17 too :D

We've got the 2000 superpower

Anonymous

@JaimeGallego Oh, final year ? =)

Anonymous

2000 what?

Jaime Gallego

Year of birth

Anonymous

8:56 PM

Oh =D

Anonymous

Hehe

Anonymous

I didn't expect to find so many school students on this site :P

Anonymous

I thought it was not for me initially

Jaime Gallego

I don't know about the Indian education system, but it is the one before the final year

Anonymous

@JaimeGallego I see. I am in my final year.

Anonymous

8:58 PM

It is same here.

Anonymous

2 years

Anonymous

of HS

Jaime Gallego

Which colleges are you planning to apply @Mystic?

Anonymous

@JaimeGallego Umm. I have my entrance exams coming up. Depending on the results I will be able to apply to the colleges. I am aiming for one of the Indian Institutes Of Technology or the Indian Institute Of Science or the National Institutes of Technology...

Anonymous

What about you?

Jaime Gallego

9:06 PM

I am planning to study in the States

Anonymous

@JaimeGallego US ?

Jaime Gallego

I will take the SAT on May

Yep

Anonymous

Oh. I gave the SAT.

Anonymous

They changed the pattern this year

Anonymous

But I won't go to the US...

Anonymous

9:07 PM

My family won't allow me to stay in another country alone..

Anonymous

The new SAT is actually easier than the earlier version

Jaime Gallego

Yes, some sections of the old SAT Writing were hellish

Math No Calculator keeps being hard though

Anonymous

@JaimeGallego Why won't you join a college in Spain ? Any reason? Is the States better?

Jaime Gallego

That's my plan B.

Anonymous

@JaimeGallego Erm..why?

Anonymous

9:13 PM

Why would you go so far from your home country?

Jaime Gallego

Why wouldn't I? The US has some of the best colleges in the world.

AccidentalFourierTransform

and in some states weed is legal

Anonymous

"best" in the sense that their ranking is high

Anonymous

Anyway, I doubt that they are "much better" than other colleges...

Anonymous

Personally I don't find them to be very special or something

Anonymous

9:17 PM

@AccidentalFourierTransform weed is illegal in spain? =P

AccidentalFourierTransform

technically, yes

but the laws are not very strict about that

you can have a plant in your house though, that is legal

DanielSank

@Mystic Have you made a comparison somehow?

AccidentalFourierTransform

^ good point

Anonymous

@DanielSank Yes. I compared the courses and course structure of IITs with that MIT and Harvard.

Anonymous

They seem very similar

Anonymous

9:21 PM

Except for the experimental part maybe

DanielSank

@Mystic IIT's?

Anonymous

At phd level MIT wins hands down

Anonymous

But at UG level the IITs have a far rigorous course

DanielSank

@Mystic Heh, yes, this is where I've found the biggest difference between US physics programs and programs in other countries.

@Mystic When you say you compared courses, do you mean you compared the lists of topics or that you compared them by attending both?

Anonymous

@DanielSank Yeah, but MIT and Harvard lack the rigorous maths that IITs offer

Anonymous

9:23 PM

@DanielSank I spoke with some seniors about this

Anonymous

One of them attended both IIT and later on MIT

DanielSank

@Mystic What is IIT?

Anonymous

google search it ^

DanielSank

@Mystic I guarantee you that Harvard and MIT do not lack rigorous math courses.

Anonymous

@DanielSank Well, I am talking about the UG level

DanielSank

9:25 PM

Google says IIT means Illinois Institute of Technology.

Anonymous

Not phd level

DanielSank

@Mystic So? I took math classes as an undergraduate. They were quite rigorous.

Anonymous

@DanielSank Did you attend an IIT?

AccidentalFourierTransform

Indian Institutes of Technology

The Indian Institutes of Technology (IITs) are autonomous public institutes of higher education, located in India. They are governed by the Institutes of Technology Act, 1961 which has declared them as institutions of national importance alonside National Institutes of Technology and lays down their powers, duties, and framework for governance etc. The Institutes of Technology Act, 1961 lists twenty-three institutes located at Bhilai, Chennai, Delhi, Dhanbad, Dharwad, Goa, Guwahati, Jammu, Kanpur, Kharagpur, Mumbai, Roorkee, Bhubaneswar, Gandhinagar, Hyderabad, Indore, Jodhpur, Mandi, Palghat...

Anonymous

I spoke with a senior who attended both IIT and MIT

Anonymous

9:26 PM

He said that the maths is more rigorous in IITs at UG level

Jaime Gallego

MIT does have options in undergrad for more rigorous courses

Anonymous

But MIT wins in the experimental part

DanielSank

@Mystic No, I did not go to Illinois Institute of Technology. If you would please stop being a pain in the ass and tell me what IIT means, I'd appreciate it ;-)

Anonymous

@DanielSank Please look at what AFT posted

DanielSank

Ah.

Thank you for finally saying it.

Ok so maybe something you should know: In the US culture, you can usually do whatever you want if you take initiative. If you're at, for example, MIT and you want to take a rigorous graduate level math course, you can.

0celo7

9:28 PM

Why are we always talking about India :P

DanielSank

(At least, I think so)

@0celo7 Because we have Indian users.

Anonymous

@DanielSank Oh, I don't know about that...

DanielSank

@Mystic I do, which is why I'm telling you :-)

I took three or four graduate physics courses while I was an undergrad.

skullpetrol

Let's talk about China :P

Anonymous

You can take graduate math course in UG?

Anonymous

9:29 PM

@DanielSank

DanielSank

I also took real analysis, complex analysis, functional analysis, abstract algebra, and a course on calculus on manifolds, including differential forms, etc.

They were all rigorous.

@Mystic Yes, I took graduate electrodynamics, graduate quantum mechanics, and a special topics course on noise/fluctuation in quantum mechanics.

This is quite typical for advanced students.

@skullpetrol k

skullpetrol

k

Anonymous

Oh that is good then =)

Anonymous

I am planning to take up engineering

0celo7

@Mystic I've taken four grad classes and I'm in my second year

it's totally standard

I will take four more next year

Anonymous

9:32 PM

@0celo7 You are in your Undergrad ?

0celo7

yes

Anonymous

Are you from MIT?

DanielSank

@Mystic Then why the heck do you care about super-turbo-rigorous math?

0celo7

no

@DanielSank Ahem?

Anonymous

@DanielSank I love maths =)

Anonymous

9:32 PM

And engineering too

DanielSank

@Mystic Me too, but when you get to university and take really rigorous courses, it's a whole different style.

0celo7

@Mystic what do you know about proof-based math?

DanielSank

Maybe you'll like it. Hard to say.

Anonymous

@0celo7 nothing

Anonymous

tends to 0

0celo7

9:33 PM

then you don't know you'll love it

it's completely different from what you're expecting

for better or for worse

DanielSank

@0celo7 You can't say that for sure, but you're probably right.

@Mystic University pure math courses can be... well, different from what you expect.

Would you enjoy spending a week defining the real numbers in terms of the integers?

0celo7

One can easily skip that class :P

Anonymous

@DanielSank Not sure about that. Probably yes.

0celo7

And that's not what "pure math" is about to me, anyway

but the yugoslavian did say that analysis is applied math

so maybe I'm just a peasant after all

DanielSank

@0celo7 def

0celo7

9:35 PM

@DanielSank only if you're a peasant too :)

DanielSank

@0celo7 Mathwise I'm more of a travelling mercenary.

I owe allegiance to nobody, i.e. I don't feel obligated to follow the epsilon/delta's of any field.

At the same time, I delight in destroying my enemies via application of math.

skullpetrol

Soldier of fortune?

DanielSank

@skullpetrol Yeah, more or less. Math is my weapon but I don't care much about a code of honor.

Anonymous

@DanielSank However, I still fail to see how US colleges might be a better choice for me. Even in colleges here I will get to choose optional additional subjects of my choice. At IITs engineering students are allowed to take any number of additional courses as per their choice to fill their credits. Yeah, I get that experimental Physics part of MIT.

Anonymous

CS students can opt for QM courses

Anonymous

9:38 PM

Just like you and 0celot took extra courses!

DanielSank

@Mystic I'm sorry, do you think that you're not allowed to choose extra courses in the United States?

We have no national law against students taking courses outside their major.

Anonymous

@DanielSank No. I didn't say that.

DanielSank

Oh, ok.

Anonymous

I am saying that

Anonymous

It is equal

Anonymous

9:39 PM

In terms of theory

Anonymous

And course structure

DanielSank

ah

Perhaps. I have absolutely no way of knowing.

Anonymous

That's why I said I don't find them anything more special than the institutes here

DanielSank

@Mystic Right right.

skullpetrol

What do your parents want you to do? @Mystic

Anonymous

9:40 PM

Except for the experimental part where US colleges definitely win

0celo7

I'd wager the professors at MIT are more well connected than those in India.

DanielSank

^ That is probably true.

0celo7

At least internationally. I'm sure the Indian professors know each other better.

@DanielSank Do you know the minimax principle?

Anonymous

One thing... US colleges will be far bigger than the colleges here =)

Anonymous

And so I am not leaving the comfort of my home to live all by myself in the US :P

DanielSank

9:43 PM

@0celo7 Maybe but probably not by that name.

0celo7

That is a big deal.

skullpetrol

Tsk tsk what will Belinda think :P

0celo7

Belinda?

DanielSank

@0celo7 In my limited experience, the USA is considerably less misogynistic than pretty much every other country in the world.

Anonymous

@0celo7 I guess you are objectifying women there....I don't really like that...

0celo7

9:45 PM

Maybe I am, maybe I'm making a joke. We'll never know.

Anonymous

It is NOT a thing to joke about.

Anonymous

I flagged it.

DanielSank

@0celo7 do us all a favor, eh?

Don't get suspended again.

6

You're smart enough to know how to accomplish that.

skullpetrol

^

bolbteppa

haha oh my god

Jaime Gallego

9:47 PM

Interestingly enough, MIT or Caltech do not ring a bell for most people around here. There is 1 MIT sweater for ten million with Oxford/Yale/whatever stamped on the front.

skullpetrol

Yale?

Jaime Gallego

Yale.

DanielSank

I went there. Nice place.

Ben Niehoff

what are you opinions about the equivalence principle vs. torsion?

bolbteppa

@0celo7 how is your SCV study going

Ben Niehoff

9:49 PM

also, how do I share a question in here properly? I've pasted a link before, but all it showed was the link

Jaime Gallego

Just put the link and nothing else

Ben Niehoff

0

A: Shouldn't the Torsion be eliminated on the basis of Equivalence Principle?

I don't believe the equivalence principle has anything to do with torsion. There are two common definitions of the equivalence principle, either: The motion of objects under the force of gravity is independent of those objects' composition, or: Experiments done in a local frame cannot distingu...

Jaime Gallego

There you go

skullpetrol

He can't chat for 27 min @bolbteppa

bolbteppa

See (s)he's at it again

Anonymous

9:51 PM

Hmm, I guess it was because of my flags.

bolbteppa

@DanielSank since you did functional, do you have a feel for what the point of the open mapping theorem, or closed graph theorem, really is? Can't really see the point, I guess open is saying your inverse will be continuous if it exists, who cares if it maps open sets to open sets?

skullpetrol

Good guess. @Mystic

Ben Niehoff

mapping open sets to open sets is super important for topology

that's basically the definition of a homeomorphism

Anonymous

@skullpetrol Let's not talk about it. =)

skullpetrol

-_-

Anonymous

9:54 PM

Anyway, @DanielSank did you solve it?

Anonymous

the combinatorics problem?

bolbteppa

A homeomorphism is an invertible open map, but the open mapping theorem applies to non-invertible maps

Ben Niehoff

ah, I see

bolbteppa

So I guess it's just setting up conditions that also hold for non-invertible maps, but the interesting thing is when they are invertible, but still I think there has to be more to it

Ben Niehoff

actually I'm having a hard time imagining a function that maps open sets to open sets and somehow fails to be invertible

but I'm used to thinking geometrically

I guess I can think of counterexamples with discrete topology

bolbteppa

10:02 PM

I guess a projection or something, don't really get the non-trivial aspect of this stuff yet

Ben Niehoff

ah, I see

I just glanced at the Wiki page, I wouldn't say that I can understand what's important about it either at the moment :)

except that I'm sure that the answer is "everything"

bolbteppa

haha that's what it feels like

@0celo7 to motivate your scv since you find some of it boring: "The device of sheaf theory was devised to put the First Cousin Problem on a more natural footing. Saying that the First Cousin Problem is always solvable is equivalent to saying that the first cohomology class with coefficients in the sheaf of germs of holomorphic functions is zero. " plenty of fancy words

skullpetrol

Beware of "fancy words."

Anonymous

Anyone good at electrochemistry here? I have a question!

Anonymous

Why in the nerst equations both units: atm and molarity is allowed?

Anonymous

10:16 PM

And how do they cancel out ?

0celo7

10:50 PM

@bolbteppa Still boring.

bolbteppa

I see, then why do you want to read books about approximating solutions of pde's, then call one of the examples at the very limits of those books boring?

0celo7

11:04 PM

@bolbteppa I have my reasons.

@bolbteppa The OMT is used to prove two things: the bounded inverse thm and the closed graph theorem. BIT says that if $A:X\to Y$ (Banach) is bounded and injective, then $A^{-1}$ is bounded.

BIT says in particular that the resolvent of a bounded op is bounded.

Closed graph theorem is useful, gives a nice criterion for continuity of an op.

It's a useful technical result, I don't know if there's a big intuition behind it

bolbteppa

Trying to find that big intuition

0celo7

@bolbteppa Complex analysis: can I contour integrate a uniformly convergent series term by term?

Should be. Riemann integrals commute with uniform limits.

bolbteppa

11:22 PM

contour integral is just an integral

Transcript for