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12:04 AM
Yeah most companies that I've applied to never respond. Most of them don't even have an indicator on the application website
 
12:23 AM
The best was when they told me that they completely changed the job description right as I was going into an interview...it started out as a physics simulation job
 
12:53 AM
Hi
 
1:52 AM
Hi
 
2:21 AM
in Math Mods' Office, yesterday, by Joel Reyes Noche
Today Mathematics Stack Exchange becomes the first Stack Exchange site to have 1 million questions. These questions, posted by over 278 thousand people, have been answered over 1.6 million times by over 93 thousand helpful souls. More math SE milestones: https://math.meta.stackexchange.com/questions/7021/history-of-math-stackexchange
 
2:32 AM
How do physicists and engineers decide their area of interest after undergard?Is it possible to switch fields after Ms or Phd? Will it be a smooth transition?
2
 
 
2 hours later…
Anonymous
4:49 AM
@Mohan Wouldn't that depend on the transition? :)
 
Anonymous
@danielunderwood Heh
 
Anonymous
@vzn Interesting! Blind quantum computation is somewhat a hot field these days.
 
Anonymous
I should look into the details sometime.
 
@Blue Yes, it would depend on the transition.Iam just interested in learning the experience of someone who has done it before (just to know whether it is really possible)
 
@vzn i come back to wondering how on earth this is all going to proceed going forward
 
What exactly are the physics prerequistes of general relativity?
 
5:11 AM
i mean, one possibility is that there's eventually going to be a clear refutation of S-S on technical grounds. but the argument by the defenders seems to be of a much more pejorative sort
 
Anonymous
@SwapnilDas Nothing much I'd guess. You already have the prerequisites
 
Anonymous
There's a lot of math pre-requisites though as far as I am aware
 
Anonymous
You can start with Schuller's lectures. He starts with the necessary parts of topology and differential geometry.
 
@SwapnilDas according to Einstein you only need to understand the special theory first
 
Anonymous
@user2646 You really don't
 
Anonymous
5:21 AM
You can study GR independently
 
without any foundation?
 
Anonymous
@user2646 Yes. The mathematicians hardly ever take a class in SR.
 
they don't work in the lab
 
Anonymous
How's SR/GR useful in the lab? :P
 
re: LIGO
 
5:25 AM
@Blue Difficult, costly and legally risky in many countries. Companies don't want to tell you a reason for rejection in writing since they don't want to get sued for it being the "wrong" reason.
 
does SAP provide reasons?
 
i'm not sure how much GR expertise you need to run the experiments at LIGO. certainly you need it to interpret their results
 
That is, the company has exactly zero benefit from responding to you, but some risk. Why would they do it?
@user2646 how would I know, I've not been rejected ;)
 
the point about them not giving a rejection "in writing" is probably important
 
Anonymous
5:29 AM
@ACuriousMind Both your arguments are valid. But yet, I feel that keeping applicants waiting is not the morally correct thing to do. Some companies I know provide feedback on the improvement areas in interviews. But then again it's a different game when you're rejecting in writing, which is also true.
 
(though i imagine some would be sufficiently paranoid about such matters that even an 'off the record' verbal comment wouldn't be possible)
 
Anonymous
The legal system is crap in most countries. Which is true
 
Anonymous
People can sue others for almost anything
 
Anonymous
So let's say you scratch out the feedback-in-writing part. I don't think you'd be sue-able if you simply send custom rejection letters (in most cases)
 
yeah, but if the choice is between "some small risk" and "no risk" then without any other incentives they'll go for the latter
 
Anonymous
5:35 AM
I guess most people develop a thick skin and get used to waiting anyway
 
is that a ninja in your avatar?
 
Anonymous
@user2646 Kind of
 
coolio
 
Anonymous
This article summarizes excellently both aspects of giving candidates feedback.
 
7:35 AM
morning
 
Anonymous
Morning!
 
Anonymous
7:55 AM
The SO Python chat has a great website: sopython.com/wiki/…
 
Anonymous
We sure need something like that
 
2:19 PM
@Danu If you do a good job of not writing the easy bugs then your bug hunting is not at all boring. Instead it is monumentally frustrating.
I left off last night with a really puzzler, but my subconscious had suggested a possibility for this morning.
It might be all Qt's fault.
 
From my experience, involving Qt magically increases the number of bugs
 
Anonymous
@dmckee The dopamine rush, once you get hold of the monster bug, makes up for the frustration ;) (But well, if it's a trivial bug, you feel like kicking yourself with both legs!)
 
For me it's usually kicking myself for the monster bugs too
 
2:59 PM
naoh + h2so4 → na2so4 + h2o and naoh+h2so4=nahso4+h2o
Why these 2 behaviours?
 
I don't know if Qt is making more bugs, but it is certainly hiding them behind layers of derived classes and documentation so terse it approaches opaque.
In this case I have images files that check out as OK using ImageMagik's identify command, but when I feed QImageReader their (correct, I checked!) pathname it is refusing to read them with UnknownError.
Thanks, Qt, that's very helpful.
 
vzn
@Blue am interested in the P=?BQP problem in Computer Science and suspect Mahadevs work might be related. yes QC is a dynamic/ young/ vibrant field full of energy and surprises.
@Semiclassical Mochizuki brought a lot of this on himself with his isolationist math style, believe that eventually "much" of his new math will be accepted, but not sure about the complete proof... its nearly unprecedented in the history of math... it would be neat to study history of cases where results took a very long time to be accepted, its not unheard of...
 
Anonymous
@vzn Are you aware of blind quantum computation?
 
Anonymous
Mahadev's work is mostly based on that
 
Anonymous
I'm not very sure how that is related to P=?BQP though
 
Anonymous
3:09 PM
Fitzsomons is the big guy in that area btw (BQC)
 
@vzn yeah. the closest analogy I've seen is to Kepler's conjecture (i.e. best sphere packing in 3D). But there the issue was that the proof converted the conjecture into a huge number of optimization problems, each of which was checked by computer.
Each individual case could be understood by humans; the issue was that there was simply so many cases to handle.
By contrast, the barrier to Mochizuki is the sheer breadth and obscurity of the concepts involved.
 
Cyclone hitting my place.
Yay! :P
 
Anonymous
@SwapnilDas I'm jealous
 
3:17 PM
You should be :P
2 days holiday ;)
 
I'm looking forward to the sun coming out again eventually. The last few days here have been grey and drippy
 
Anonymous
@SwapnilDas Daamnnn
 
Anonymous
You guys have puja holidays?
 
@Semiclassical Where do you live?
 
not a lot of time left here before winter though
Minnesota, in the US
 
Anonymous
3:18 PM
(Is Durga puja a thing in Odisha btw?)
 
@Blue They were going to start in Saturday, but now they start tomorrow ! :P
 
Anonymous
Wauw
 
@Blue Ofc, Cuttack Durga Puja is very famous.
My attendance in school is 49%
 
Here's the 'fun' mathematical puzzle I've created for myself.
 
Anonymous
According to the news the cyclone should hit West Bengal too
 
3:21 PM
Not that much.
I mean rains and slightly faster winds.
 
Anonymous
@SwapnilDas Shh, don't shatter my dreams
 
Anonymous
;_;
 
Oh rofl.
 
Anonymous
I want to sleep all day at home
 
I have got a lot of scoldings at home for exhibiting a jovial attitude towards the cyclone :P
They care about people dying but not my living :/
 
3:23 PM
Let $\Delta^n\subset \mathbb{R}^n $ be the standard $n$-simplex. I've got a messy function $f:\Delta^{14}\to [-1,1]^3$. What I want is $f(\Delta^n)$
 
Anonymous
@SwapnilDas Get a new set of parents man
 
@Blue Nope, my parents are actually very good :P
 
(and yes, that 14 is correct)
 
Unlike my friends' parents who force them to go to school.
@Blue Are you there in Brilliant.Org?
 
Anonymous
@SwapnilDas Long ago....in class 10
 
3:26 PM
I saw your pic.
 
About the only thing I know with certainty right now is that the points in $f(\Delta^n)$ satisfy the inequality $1+2xyz-x^2-y^2-z^2\geq 0$
 
Anonymous
@SwapnilDas Oh, lol
 
Anonymous
That was a bad pic
 
Anonymous
@SwapnilDas Yeah, I know your profile
 
3:27 PM
i.e. $f(\Delta^n)$ is some subset of the set $\{(x,y,z)|1+2xyz\geq x^2+y^2+z^2\}$
Beyond that though...newp
 
@Blue How?
Did I ever tell you?
 
Anonymous
@SwapnilDas I browse it sometimes, but I haven't posted in the past couple of years
 
Anonymous
You are apparently popular there ;)
 
Oh, lol.
 
Anonymous
@SwapnilDas I think so, but I would get to know you anyway. You have a lot of activity there
 
3:29 PM
(I'm having to take the tack of randomly sampling $X\in \Delta^{14}$ and plotting the (convex hull of the) points $f(X)$ I get.)
 
That site is responsible for getting me interested in maths. I was almost a 67% student in arithmetic before that.
 
Anonymous
It is a good site, yes :) A bit addictive
 
Yup, very much.
So much that I've solved 5,345 problems but am still going on :P
 
Anonymous
@SwapnilDas Are you planning to pick up GR btw (during the holidays)?
 
@Blue I've to study Differential Geometry for that.
 
Anonymous
3:33 PM
@SwapnilDas You can pick it up on the go
 
For which I've got to study Linear Algebra, Single and Multivariable Calculus.
 
Any ideas?
 
Anonymous
Check that out ^
 
@Blue I know only +2 level mathematics, will that be enough?
 
vzn
3:34 PM
@Blue interesting, sounds a lot like holomorphic computing, the idea is algorithms can make substantial calculations but on random-looking data thats encrypted.
 
Anonymous
I was planning to learn the parts which I couldn't cover earlier. If you wish, we could make a study group sort of thing
 
Anonymous
@SwapnilDas Yes, it should be enough to start. You can pick up things (the necessary math) on the go
 
Anonymous
There's no physics pre-req as such
 
vzn
@Semiclassical from the Fesenko report it looks like they have (slowly!) increased the very small # of people who semi-comprehend/ understand his work... its partly a cultural crisis...
 
Anonymous
The first few lectures are basically math lectures. So you don't have to study DG or topology beforehand
 
3:35 PM
What is a four dimensional topological manifold !
 
Anonymous
@SwapnilDas He defines it in the first lecture
 
Doesn't it seem awkward that I don't know real analysis but am studying GR :P ?
 
Anonymous
Man, you don't need real analysis for this
 
Anonymous
It's at an undergrad level
 
Anonymous
Just check the first lecture. If you can't cope up then switch to something else
 
3:38 PM
I can.
 
vzn
@Semiclassical have heard of the 4 color proof history some, somewhat similar. mathematicians still are averse to it. it was very controversial on its introduction.
 
@SwapnilDas what made you choose to study GR?
 
@JohnRennie Beauty
 
@SwapnilDas it's certainly an elegant theory
 
Yup.
@JohnRennie Have you read Jackson's Electrodynamics?
 
Anonymous
3:41 PM
@SwapnilDas Anyhow, if you plan to cover that lecture series during the pujas, ping me up when you'll be free. I'll be free for approx two weeks from Saturday onwards
 
@SwapnilDas no
 
@Blue Sure, I'll tell you.
 
Hi y'all. This q. says "Find $\mathrm df/\mathrm d x$ if $f(x, y) = \cos(x/y)$ and $y=\sin x$. Is there some clever partial diff method of solving this? (It's in a partial diff homework). Can't seem to find anything in my notes.
 
@dmckee Hi! Have you read jackson's electrodynamics?
 
Anonymous
@CooperCape Chain rule?
 
Anonymous
3:42 PM
df/dy.dy/dx
 
I thought about that but can't seem to get it to work?
 
Anonymous
Oh
 
Anonymous
y is a function of x
 
Anonymous
So just put it in the original equation
 
Anonymous
cos(x/sin x)
 
3:43 PM
That's what I thought but it doesn't seem relevant to the rest of the homework
 
Set $u = x/\sin x$ then $df/dx = -sin(u)du/dx$
 
So just do it by normal calc?
 
Anonymous
The usual approach is $df = \partial_x f dx + \partial_yf dy$
 
I'll try that in a bit, thanks.
 
Anonymous
Now what you need is $df/dx$
 
Anonymous
3:46 PM
So that should be $\partial_x f + \partial_yf dy/dx$
 
Ed Witten is said to have mastered the book 'Jackson's Elelctrodynamics' in just two weeks!
 
@SwapnilDas I took a full year course from it in grad school, but no one "reads" it. You parse, decode, and process it one painful step at a time.
 
@dmckee That difficult?
 
Anonymous
@SwapnilDas Pretty sure he knew 95% of the material beforehand :P
 
@Blue lol.
 
3:48 PM
Morning
 
Night
:P
 
@SwapnilDas I suppose it depends on how fluid and confident you are with vector calculus, but most people seem to find it so.
 
@SwapnilDas Don't say that I may actually fall back asleep:P
 
@SirCumference Go on! My place is gonna be hit by cyclone, yay!
 
Much to my surprise I got "A"s in both semesters, but it was because I spent so much time just trying to get through the exercises that my copy is smudged and has the occasional coffee ring. It was not a fun course for me.
 
3:52 PM
Oh.Ed is a monster mind, anyway.
 
Anonymous
@SwapnilDas The surprising thing is that he had an undergrad in history
 
Yup, minor in linguistics and involved in political journalism :P
 
Anonymous
I was thinking of mailing him asking why he did that. But it never materialized :P
 
( Oh yeah, I'm a die hard fan ;) )
@Blue He was a distracted guy, you donno?
 
Anonymous
@SwapnilDas Umm?
 
3:55 PM
I read somewhere, he just wandered here and there in life.
 
Anonymous
Happens when you're too smart compared to humans, I guess
 
@Blue And he still completed his PhD by 25!
 
Anonymous
One factor is that his father was also a pretty popular theoretical physicist
 
Anonymous
So he might have picked up a considerable amount from him
 
Yup, genes you know.
 
Anonymous
3:58 PM
I was not talking about genes :P
 
Oh, got it.
They worked for sometime together, If I recall.
 
Anonymous
> Louis Witten was born to a Jewish family in Baltimore, Maryland. His parents, Abraham Witten and Bessie Perman, emigrated to the United States from Eastern Europe as teenagers in 1909 and were married in 1916. Witten graduated as a Civil Engineer from The Johns Hopkins University in 1941. From 1942 to 1946 he served in the US Army Air Forces as a Radar Weather Officer.
 
Anonymous
@SwapnilDas The whole family is weird... ^
 
hmmm
 
4:39 PM
(I heard he did math and science courses during his undergrad)
 
Doing math in undergrad? Blasphemy!
 
5:19 PM
Dumb question but $\mathbb{C}$ is closed under exponentiation right?
 
Anonymous
@SirCumference Yes
 
can anyone here figure out what this document actually contains?
is ISO attempting to charge you forty bucks for a fancy pdf with information that's already on the landing page?
 
It sure looks like they expect you to pay for "A is 440 Hz" :D
 
I mean, ISO standards, at least as regards physics, are generally way out there on the "you're seriously charging for this?" scale
but this knocks it waaaaaaaaaaay out of the park
anyways, credit where credit is due
 
Hmm, the standard is "reviewed" every five years. So every five years someone goes "Yup, A is still 440 Hz".
3
 
5:32 PM
that's what it looks like to me
presumably they don't spend that much time on it
but also, presumably it does involve some nonzero time expenditure in convening a meeting and writing a report signing the report from last time
so it's probably more accurate to say that every five years, someone gets paid to go "Yup, A is still 440 Hz".
 
Being on a standards committee sounds like an awfully tedious job
 
Don't professional operas sometimes increase the frequencies so as to sound brighter?
 
Anonymous
@enumaris They use a different standard I think
 
I recall reading about drift of A in professional symphonies or orchestras...
 
@ACuriousMind gotta make sure we haven't been in a false vacuum of A
 
5:45 PM
I guess it's checking everything is A-ok
 
A-okA
I am far too easily amused by this
 
Anonymous
Scientific pitch, also known as philosophical pitch, Sauveur pitch or Verdi tuning, is an absolute concert pitch standard which is based on middle C (C4) being set to 256 Hz rather than 261.62 Hz, making it approximately 37.6 cents lower than the common A440 pitch standard. It was first proposed in 1713 by French physicist Joseph Sauveur, promoted briefly by Italian composer Giuseppe Verdi in the 19th century, then advocated by the Schiller Institute beginning in the 1980s. Scientific pitch is not used by concert orchestras but is still sometimes favored in scientific writings for the convenience...
 
Anonymous
There's this too
 
Anonymous
28
Q: Why is A4 the standard pitch reference for tuning?

Bradd SzonyeWhy do musicians use concert A, the A above middle C, as the standard pitch reference for tuning? Various national and international standards define the frequency of this note. For example, ISO 16 specifies that musical instruments should be tuned such that A4 is 440 Hz. Other standards specify ...

 
What if they messed up one year and it became a terrible 337 Hz?
 
5:49 PM
What if global warming somehow triggers a global change in the composition of atmosphere? That'd change the speed of sound and therefore what 334 HZ would sound like
 
uhhh
 
(If you're taking what I'm saying seriously, then /wooosh)
 
@dmckee Great! ;)
 
ron maimon was in the house 2 days ago
 
isn't he banned?
 
5:59 PM
i think he's muted or blocked until 1992
i.e. forever
 
until the past?
so he has to time travel to become unblocked?
 
yes
do you people hang on in IRC ##physics? if not, why not? I see Slereah and a few others but not most of you
 
Anonymous
Reddit?
 
Anonymous
Meh
 
Anonymous
Or maybe you're speaking of something else?
 
6:03 PM
there's no physics chat in reddit
IRC
yeah it's some prehistoric chat system
 
Anonymous
I haven't heard of it (I mean I know what Internet Relay Chat is but I didn't know about the specific chat you're talking about)
 
but for physics junkies, it's very good
 
Anonymous
> Please declare your intent to ask a question without actually asking it, then leave the channel before anyone has time to respond.
 
lol
but ##physics is really just for pure physics. for off topic (like this chat), there's #not-physics
the physics junkies hang in both channels of course
 
Anonymous
6:14 PM
@coniferous_smellerULPBG-W8ZgjR Link to ##physics?
 
Anonymous
I couldn't find it
 
Anonymous
Oh, okay it's ##physics freenode
 
apparently so ^^
many of the people there actually either have accounts here or do know about PSE
the saddest case is the one of jazzdude in ##physics. he's a freaking QFT genius, but had arguments with anna v a few years ago, which made him leave PSE
and I've spotted some users having reddit + irc + PSE accounts
like dukwon
 
6:35 PM
whomp, got the go ahead to build out topic modeling
mmm
 
that sounds like work
 
indeed
but not too bad
gensim does most of the heavy lifting
I just have to write code to use its API given our inputs lol
 
woah it looks like Duke is requiring everyone to use MFA for their school accounts...neat!
 
what's that
 
multi-factor authentication. Like when you use a text code or authenticator app
I think it should be more widespread. It seemed like there were a handful of phishing emails that got through the filters at my school
 
6:45 PM
I see
 
Should probably also be used for governments considering my parents work for local government and I'm pretty sure I could guess their passwords in a couple tries
Also someone always seems to answer the "I'm from the IT department and need to confirm your password" emails
 
lol
 
7:10 PM
Those people are why you can't install any software on your computer!
 
pretty much yeah
 
 
2 hours later…
8:42 PM
hmmm
 
8:53 PM
already solved topic modeling?
 
lol
I mean almost all the infrastructure is already there
this shouldn't be too hard
originally I thought I had to code the algorithms myself
but nope, gensim takes care of it all
 
@Qmechanic was this edit physics.stackexchange.com/questions/227793/… really that necessary?
 
hmmm
on another note, I've spell corrected 500k comments :D
tokenizing and lemmatizing all handled by spacy
 
9:17 PM
the beauty of there being a library for nearly everything
I think amazon's book recommendations are broken. They keep recommending me books that I've bought from them in a different edition
 
@danielunderwood Is it suggesting an older edition or a newer one?
 
1 is definitely newer since it has a new cover. I figure the others are probably the same. And physical versions of audiobooks
Though I suppose that could be my fault because I accidentally bought a reprint of an old book I had
 
I think I could be literally done with this in like a couple days
I gave myself a 3 week deadline tho lol
 
@danielunderwood If it's the newer version then their system is not broken. They just wants to keep you updated on the subject they know you like :p
 
@EmilioPisanty : It is part of an effort to remove the use of the res. recom tag for non-CW posts (or vice-versa). Only 220 more posts to go :)
 
9:30 PM
Well Griffiths' new QM book does have a chapter on symmetries, which sounds interesting. But I have at least one book that should cover that
 
maybe not even a couple days...
a few more hours...
 
Their algorithms cannot find out what other books we have
@danielunderwood BTW didn't you see the recent network-wide notification? All the users with the name "daniel" in their username have to send their account credentials to security@stOckexchange.com ASAP for a security check due to a recent attack on those usernames. Otherwise your reputation will be locked to 1 permenantly.
 
is it only for users with name "daniel" in username?
my account is fine?
 
Anonymous
@lılostafa Link to meta post?
 
Do I need to send my username and pw to that email?
 
9:36 PM
@enumaris The network-wide notification said so, if not sure you can also send you password ;)
 
Anonymous
The intentional misspelling says something :P
 
@lılostafa Hah! I use google to login
 
Change your name to include Daniel. then you’ll be sure
 
@Semiclassical perfect solution!
@Blue :)
 
Anonymous
This could be a good April's fool...
 
Anonymous
9:38 PM
If SE could execute it well
 
@Blue This could get me kicked if ACM was here right now
 
One would hope that deliberately obvious phishing is obvious
 
Anonymous
Heh. I'm embarassed to admit but I do occasionally click on the "You have won an IPhone X" type ads ;)
 
does your computer still work or is it just a bunch of different russian hackers on there now
 
Anonymous
I had Chinese malware once
 
Anonymous
9:47 PM
Not much experience with Russian XD
 
I once had someone from Russia get my steam login. I got one of those wonderful emails with "You just logged in from X, Russia"
 
Anonymous
My Twitter account was hacked by someone from Africa ;_; I had to abandon it
 
Anonymous
They started posting "weight loss diets" from my account
 
And when I was a teenager, I went to a site that claimed to give free credits on Xbox Live. You just needed to enter your login info so they could put it on your account
 
lol
y'all mfers need anti-virus
 
9:53 PM
Ahh yes I think I had one of those too. I had a twitter account that I had abandoned and one day my friends started joking about weight loss diets. I was able to reset it and hide all the tweets though
@enumaris nah just some common sense
 
Anonymous
@enumaris It was ~7 years ago. I was pretty much a noob then :P
 
And lastpass...lastpass is the real winner
Now I'm even one of the crazies that has a yubikey
 
Anonymous
Basically my password was same as my user id
 
Anonymous
Which is why I guess they managed to hack it
 
Yeah I haven't managed to do that one at least. I just had accounts with a bunch of sites with the same login and one of them seemed to get hacked every so often
 
Anonymous
9:59 PM
 
A few days ago someone called me from somewhere she claimed to be "Center for health education and development", and asked me to tell her the code they sent me (by SMS), so that they will register me to get free healthcare for 1 year.
 
Anonymous
Damn, my profile is still publicly visible with my name on it
 
Anonymous
It's flooded with those messages ^
 
Yeah I get a ton of spam calls these days. And they keep calling if you accidentally answer one
 
I told them I don't want free health care. I already have a paid one. But she just kept insisting "why not? everybody loves to have one,..." for about 3 minutes trying to convince me :)
 
10:02 PM
I just hang up as soon as they start talking usually
I did get one last week warning that my car's warranty may have run out...which is funny considering my car is 20 years old
 
Anonymous
Just use Truecaller with spam alert enabled
 
Huh neat. I usually just report them as spam and block the number
I blame facebook since they have my number
 
hmmm
 
@Blue I can't. My phone is this en.wikipedia.org/wiki/Nokia_1100
 
Anonymous
@lılostafa wuuut
 
10:07 PM
(1108 actually)
 
Anonymous
But why??? :'D
 
@Blue They're great. very easy to use and secure too. No malware at all
 
Anonymous
Well, it will probably outlive you. ;) I have a spare phone similar to that but it's impossible to use it as a primary phone
 
Anonymous
Mostly because I need to click a lot of pictures
 
I do have another smart phone for internet access and other stuff, but my main handset is a Nokia 1108
@Blue I intend to use it for the rest of my life
I'm really great at keeping stuff. I still have (and use) the eraser I bought when I was 13
although the fate of 99% of erasers is to get lost
 
Anonymous
10:19 PM
@lılostafa That's some achievement....
 
Anonymous
I lose one every month
 
I haven't seen a single eraser being used up. They're all ultimately lost
 
Anonymous
Well, it gets difficult to use them once they get too short
 
Anonymous
It isn't too practical to use them completely, unless they come in some kind of plastic casing with a holder
 
Anonymous
 
Anonymous
10:24 PM
These are useful ^
 
Anonymous
(But probably a bit more expensive)
 
One of my best purchases in college was an actual eraser. So much better than using the eraser on the end of my pencil
Not quite as good as buying a rain jacket and waterproof bookbag though
 
Anonymous
I always used wooden pencils along with actual erasers
 
Anonymous
The mechanical pencils never attracted me
 
I've had a lot of mechanical pencils I haven't been happy with. But I got one of these at some point in college and loved it. It's sitting on my desk still
 
10:29 PM
@Blue Do you use pencils at all?
 
Anonymous
@lılostafa Yep, for the diagrams and graphs in my test papers
 
Oct 15 '17 at 17:25, by Anonymous
I don't feel like I've digested the chapter till I have filled the pages with short notes and pen marks
 
Anonymous
@lılostafa Haha, that's true
 
Anonymous
My chat account got dissociated once. So it was anonymized
 
Anonymous
Usually it's an user name followed by an id
 
Anonymous
10:31 PM
But I don't know what happened that time
 
@Blue Maybe the African hacker...
 
Anonymous
@lılostafa Lol. No. It was on request. Done by the SE team
 
@danielunderwood I've been using mine for the past 8 years too
 
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