The h Bar

12:00 PM

@Ramanujan When you reduce the external magnetizing field to zero, the material does not lose its net magnetic moment (this remainder is called remanence or retentivity).

ACuriousMind

@BalarkaSen I don't think satire is supposed to communicate graveness, so that's fine ;)

Balarka Sen

It's certainly deriving entertainment out of that.

the whole point of satire is to communicate completely horrible things in a funny way :P

Yashas

@Ramanujan If you start increasing the external magnetizing field in the reverse direction, at some point the material loses all its magnetic moment. If you continue to increase the magnetizing field even further, the magnetic moment of the material reverses (relative to the initial direction). Now if you decrease the external field to zero, the material retains some amount of magnetic moment but this time in the reverse direction.

@Ramanujan If you continue to increase the magnetizing field in the original direction (first case), the magnetic moment of the material hits zero again. If you continue to increase further, you will get the same saturation point which you achieved when you magnetized the material for the first time.

@Ramanujan This forms a closed curve and the cycle repeats.

Balarka Sen

(Needless to say, I am still a big fan of black comedy and dark humor)

Slereah

Do you mean like Chris Rock

Yashas

12:05 PM

@Ramanujan This is better

Balarka Sen

lol

user228700

@BalarkaSen I know, which is why I emphasised on the "known" in this regard bit but OK, I see.

Ramanujan

@yashas thanks

@Yashas, A plumb line is suspended from the roof of a rail road car. When the car is moving on a circular track, the plumb line inclines:

1). Forward

2). Backward

3). Towards the centre of path

4). Away from the centre of path

Yashas

I won't answer until you show your attempt.

Ramanujan

@yashas, I really have no idea

Yashas

12:14 PM

This question is some super silly question too. All you need to is to know that psudeo forces in a non-inertial frame act in the opposite direction relative to the acceleration of the frame.

@Ramanujan Then you should open the lesson titled Newton's laws of motion.

because the question is so silly

if you can't answer it then it tells that you don't understand the concepts

John Rennie

@Ramanujan suppose you are in a car going round a corner, which way are you accelerated?

i.e. which side of the car are you thrown towards

Ramanujan

, I guess right side. @JohnRennie

Yashas

right? o0 what is the right side?

Balarka Sen

the one which is not the wrong one

John Rennie

@Ramanujan right side? - doesn't it depend on which way the car is turning?

Ramanujan

12:18 PM

Yeah @JohnRennie

John Doe

@ACuriousMind Am I correct in stating that given a state $| \psi \rangle$ and two unitary operators $\hat{U}_1$ and $\hat U_{2}$, the modulus squared of the projection of the state $\hat{U}_2| \psi \rangle$ onto the state $\hat{U}_1 | \psi \rangle$ is given as $$\langle \psi| \hat{U}_{2}^{-1} \hat{U}_1 | \psi \rangle \langle \psi | \hat{U}_{1}^{-1} \hat{U}_2 | \psi \rangle ?$$

ACuriousMind

@JohnDoe sure

0celouvsky

@BalarkaSen I'm trying to prove that if $\Bbb R^4$ has a flat Lorentizan metric $g$, there is a diffeo $f:\Bbb R^4\to\Bbb R^4$ with $g=f^*\mathrm{diag}(-1,1,1,1)$. When you learn the statement for Riemannian metrics, can you keep an eye out for if positivity of the metric is used?

Balarka Sen

So R^n with any flat metric is isometric to standard R^n, yeah?

0celouvsky

Yeah, but there's a tricky procedure by which you stitch together the local isometries that the Frobenius theorem give you.

Balarka Sen

12:23 PM

I see. Interesting.

Slereah

if that's not true I'm gonna be mad

0celouvsky

@BalarkaSen Any $K=0$ manifold has $\Bbb R^n$ with the standard metric as a universal cover.

Slereah

It's a pretty common assumption in GR

0celouvsky

But clearly $\Bbb R^n$ has itself as a universal cover...

Balarka Sen

Ah, yes, I remember.

0celouvsky

12:24 PM

But $K$ is not a good concept in Lorentzian geometry so I don't think you can immediately generalize the standard proof.

Qmechanic

I would appreciate it if someone could explain-to-OP/mediate/step-in/vote-to-reopen/vote-to-close here...Wait. OP deleted the post.

Balarka Sen

Ok, I'll let you know when I get to Riemann curvature tensor.

0celouvsky

cool

@BalarkaSen Aha, one also must assume completeness for the Riemannian proof.

So it will definitely fail for Lorentzian ones.

Balarka Sen

Gotcha.

0celouvsky

The proof, not the conclusion.

ACuriousMind

12:27 PM

@Qmechanic deleted just now by OP

0celouvsky

@BalarkaSen Completeness is very hard for Lorentzian manifolds because the metric does not give a length function.

It's what makes the subject so tricky from a math standpoint.

Qmechanic

@ACuriousMind : Yeah, I noticed.

Balarka Sen

@0celouvsky oh, nice point of view.

Yashas

@Ramanujan Imagine that you are in a fixed position relative to the ground and you can watch the rotating car. An object rotating requires a centripetal acceleration (because the direction is changing, you need an acceleration). In the rail road car, the tracks provide the centripetal force (if you are driving a normal car, the friction provides you the centripetal force unless the road is banked where the gravity also provides the centripetal force).

@Ramanujan If you go to the non-inertial frame of the car (you sit inside the car), you are going to feel a pseudo force acting on you as your frame is acceleration. As the direction of acceleration of your frame is towards the center (centripetal acceleration is towards the center of the path), you are going to feel a m*(centripetal acceleration) in the opposite direction, i.e. you are going to feel a force outwards.

@Ramanujan This force is called centrifugal force (and wrongly taught in schools as a magic force which acts when you are inside rotating bodies).

Slereah

Plz

There is a metric to check completeness of Lorentzian manifolds

but it's a metric for the frame bundle

Balarka Sen

12:30 PM

These actually makes me want to power through some more Riem. geom. so I'll do that I guess

Slereah

It's in the Schmidt paper

Ramanujan

@Yashas , it means the ans is away from the centre of path

Yashas

@Ramanujan Guess? Explain how you drew that conclusion.

Ramanujan

, just a guess @Yashas

Yashas

......

Slereah

12:34 PM

Yashas

@Ramanujan You should read your textbook and try to understand what it tells. If you had understood the concepts, this question would have been trivial.

Ramanujan

@Yashas, the most poisonous metal is:

1). Uranium

2). Technetium

3). Platinum

4). Plutonium

Yashas

1, 2 and 4

are radioactive

Ramanujan

@Yashas we can choose only one

Yashas

The question is wrong or it is the board being just stupid as always. They are probably expecting you to mark the most radioactive element.

Ramanujan

12:37 PM

@Yashas, then it might be 4th one

Yashas

As far as I know, Polonium is the most radioactive metal (I don't remember and I don't bother to remember the order).

But that option isn't there and the question says "the most poisonous".

This question is so bad that I want to puke.

@Ramanujan The best option is 4. Tc is weak and Pu is more dangerous than Uranium.

Anonymous

@Ramanujan Just check out the half life of those elements. AFAIK Tc is used in injections to measure some properties of the blood. So that is definitely not so poisonous.

Anonymous

List of radioactive isotopes by half-life

This is a list of radioactive isotopes ordered by half-life from shortest to longest. == 10−24 seconds == == 10−21 seconds == == 10−18 seconds == == 10−15 seconds == == 10−12 seconds == == 10−9 seconds == == 10−6 seconds == == 10−3 seconds == == 100 seconds == == 103 seconds == == 106 seconds == == 109 seconds == == 1012 seconds == == 1015 seconds == == 1018 seconds == == 1021 seconds == == 1024 seconds == == 1027 seconds == == 1030 seconds == Tellurium-128's half-life is over 160 trillion times longer than the universe has existed. == See also == Lis...

Ramanujan

@blue, so which one do you think is correct?

Anonymous

@Ramanujan Uranium I suppose.

Anonymous

12:47 PM

68.9 years half life

Anonymous

U-232

Anonymous

Plutonium-238 has half life of 87.7 years

Anonymous

Platinum is a noble metal. Why the hell did they include that in the options? =P

Yashas

@blue o0

You are taking the worst case.

Anonymous

@Yashas What? (I might be wrong)

Yashas

12:50 PM

U238 is the most abundant isotope and it has a half life in billions of years.

Anonymous

@Yashas God knows which isotope they mean. I'll just chicken out =P

Yashas

Pu244 is the most abundant isotope of Pu.

HL is 80 million years

Ramanujan

@blue, @yashas, quora.com/Why-is-plutonium-more-harmful-than-uranium

Slereah

And Half life 3 is still not out

Anonymous

They were talking about the most poisonous...so I thought I should compare the most unstable form of the two. @Yashas

Anonymous

12:54 PM

I didn't think about abundance as such

Anonymous

Anyhow, the question is stupid and I don't want to waste time on it. =P

Anonymous

It takes a lot more uranium to pose a threat than it does plutonium since plutonium has a much shorter half life than uranium. @Ramanujan The answer does not state which isotope they mean....

Anonymous

Probably the most abundant isotope.

Secret

What happen if Valve decided to break the number 3 rule...?

Anonymous

But, meh...

Yashas

12:58 PM

@Secret I would drop a nuclear bomb on their HQ

@Secret They promised HL3 years ago and it hasn't come out yet.

In the meantime, they have released many other games. This makes me wonder if they have abandoned HL :(

Ramanujan

@Yashas, which has the highest viscosity?

1). Water

2). Honey

3). Glycerine

4). Blood

Anonymous

Oh god ^

Yashas

Just another stupid question. The answer is 2 > 3 > 4 > 1

@Ramanujan Google

I don't understand why the exam board prepares such terrible questions.

Ramanujan

@yashas, the book says ans. Is glycerine

Yashas

Those who mug things up score and those who really understand concepts but don't mug up (because they know that they don't need it) score less.

Anonymous

1:03 PM

3

Yashas

@Ramanujan Interesting. I think I got confused between glycerine and ethyl glycol.

0celouvsky

@BalarkaSen So the question, even in Riemannian geometry, is: if $\Bbb R^n$ has a flat metric, is it complete?

Yashas

or maybe not

I think I had used glycerine (or ethyl glycol) while doing an experiment on total internal reflection.

And it didn't seem to be more viscous than honey.

Ramanujan

@Yashas , oh

Balarka Sen

@0celouvsky Hm, I don't know, but I also don't know completeness yet.

0celouvsky

1:05 PM

@BalarkaSen Ok, something to think about then.

It is an interesting question, imo.

Balarka Sen

yeah.

ACuriousMind

@0celouvsky mathoverflow.net/q/39669 helps, maybe?

Ramanujan

What is Wein's displacement law uses for?@Yashas

Yashas

@Ramanujan Open the lesson on heat transfer and jump to the section titled "heat transfer through radiation"

0celouvsky

1

A: When is the Riemannian manifold $\mathbb{R}^n$ complete as a metric space with respect to the Riemannian distance?

A standard necessary and sufficient condition is that every bounded set for your metric is bounded in $\mathbb{R}^n$ with the standard Euclidean norm.

^troll answer

But that's how I was thinking one should prove it.

Show that a $g$-bounded set is bounded in $\Bbb R^n$ with the usual norm.

Ramanujan

1:09 PM

@yashas, is it used for determining the temperature of steam?

Yashas

It is used for determining temperature of everthing.

0celouvsky

1:24 PM

0

Q: If a metric on $\Bbb R^n$ is flat, is the space globally isometric to Euclidean space?

Let $g$ be a metric of arbitrary signature on $\Bbb R^n$. If the Riemann tensor of $g$ vanishes identically, is there a diffeomorphism $f:\Bbb R^n\to\Bbb R^n$ with $g=f^*e$, where $e$ is the standard metric with the same signature as $g$? In the Riemannian case, assuming $(\Bbb R^n,g)$ is compl...

@ACuriousMind @BalarkaSen @Slereah

After further investigations of the semi-Riemannian literature, it is true assuming the manifold is geodesically complete

So...is every flat $\Bbb R^n$ geodesically complete?

Slereah

Are there even metrics outside of the canonical one

0celouvsky

pick any coordinate system

@Slereah So I'm thinking that I should use local isometries to flat space to prove completeness

I can always extend in a small ball

@ACuriousMind Sound right?

Yes, I'm quite sure that works.

Anonymous

1:40 PM

@Yashas Are irodov's mechanics and electromagnetism books good for theory? Or they only contain problems?

Yashas

@blue There are two books. One is for problems and the other one is for theory.

In my opinion, Irodov's theory books are the best.

You learn physics by reading such kind of books unlike JEE prep books which teach yo use stupid tricks to solve MCQs.

You learn way more than what you need for JEE. If you are preparing for physics olympiad, then that is the best book you have.

But please do not overstudy physics because JEE requires you to be good at all the subjects even though you want to major in physics -__- (you need to be an expert in inorganic chem to study physics... hehe ... -.- )

Anonymous

I only have the General Problems in Physics. I solved the mechanics part in class 11. In class 12 I only used the Physics Galaxy books. They contain all the relevant problems in Irodov and HC Verma. So it helped me cut down on the number of books.

Yashas

HC Verma problems are good too.

Anonymous

@Yashas I am not sure if I want to "major" in Physics...actually I've not decided yet. I love Physics, that's for sure.

Yashas

The Golden Rule is: don't buy JEE prep books; buy books which are used by UG students or books where the author's goal is to teach you physics (not to help you get as many marks as possible in JEE)

This JEE is a very bad test.

I don't understand why someone has to know organic chemistry reactions to major in physics.

Anonymous

1:46 PM

@Yashas I don't use books other the the previous 40 years question bank (and the PG books/website) =P Just self made notes are sufficient for me.

Yashas

I have a note book for organic chem only :p

The last time I studied physics from textbook was an year or two ago...??...

Anonymous

@Yashas I remember yesterday you were reading Feynman =D

Yashas

I am going to screw up JEE because of chem

@blue I don't count referencing as studying

Anonymous

Chem is easiest of the 3 =P

Yashas

If you included those acts, then I am studying 24x7.

0celouvsky

1:49 PM

can we please not have JEE discussions here...

Yashas

@blue and also the most annoying

0celouvsky

@blue Physics is not a proper noun.

Anonymous

@0celouvsky Thanks.

0celouvsky

Unlike Rigor of course ;)

skill patrol

Relax and beeyumbole.

0celouvsky

1:51 PM

I'm updating TeamViewer and it's taking forever!

Yashas

What speed is your computer travelling at?

0

that was a poor joke

in what frame

the one with the picture in it

Fawad

1:52 PM

picture of computer?

skill patrol

Yep

:0)

Fawad

(^ム^)

2

skill patrol

nice

0celouvsky

@Slereah I got a comment on my post which claims the result is not true

Slereah

Ah yeah, just take a bounded submanifold that's still $\approx \Bbb R^n$

I guess!

0celouvsky

1:58 PM

Lol @ all of GR being wrong

Slereah

Eh, it's a removable singularity

Secret

[(Old news)]

businessinsider.com.au/…

The idea is interesting though. Talk about unguided self realisation of a prescribed goal

0celouvsky

2:28 PM

@Slereah what?

0celouvsky

2:59 PM

@ACuriousMind what's the German word for undergrad

ACuriousMind

@0celouvsky We don't have one

Recall that until a few years ago we didn't have the split into bachelor and master, it was just one five-year course that ended in a diploma

Yashas

@ACuriousMind Is it ok to flag questions as VLQ when I am out of votes? :P

ACuriousMind

So there were just "students" - if a student is a PhD student they usually say they're a Doktorand, not a student.

Slereah

Germany is on the LMD system, no?

ACuriousMind

@Yashas Only if they are VLQ

Slereah

3:05 PM

Surely an undergrad would be like

ACuriousMind

@Slereah What's the LMD system?

Slereah

A license student

License - Master - Doctorat

Bachelor's master's doctorate system

The bachelor's master's doctorate system (in French réforme licence-master-doctorat or réforme LMD) is a European educational system designed by the Bologna Process. Its purpose is to standardize the educational system at European universities in order to harmonize study norms in terms of content, curriculum, syllabus, and course credits. As a result of this reform, European universities will offer the following three degree levels, but the names will vary from country to country: bachelor's, master's, and doctoral (PhD) degrees == External links == http://www.coe.int/t/dg4/highereducatio...

Hm, the bologna process

sounds delicious

ACuriousMind

Ah, yes, now - post Bologna - it is

But most universities really just split the former diploma courses in half and called one part "bachelor" and the other "master"

So, well, you might say Bachelorstudent, but in actual speech it's not as common as the undergrad/grad distinction seems to be in English

In particular, there aren't really equivalents to phrases like "undergrad level", at least not that I've heard

Slereah

Also we don't spend crazy money to get degrees

How much was your student loan, @0celouvsky

0celouvsky

Idk

John Rennie

3:21 PM

@Yashas VLQ means the question is so poorly written as to be incomprehensible. It doesn't mean it's a silly question, or a duplicate or homework. It's tempting to resort to flagging when you've run out of close votes, but you shouldn't flag unless the flag really is appropriate.

Ramanujan

@JohnRennie, oxidation number of P in KH_2PO_3 is?

John Rennie

PO_3 or PO_4?

Ramanujan

@JohnRennie, it's 3

Anonymous

Phosphorous acid

Phosphorous acid is the compound described by the formula H3PO3. This acid is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds. == Nomenclature and tautomerism == H3PO3 is more clearly described with the structural formula HPO(OH)2. This species exists in equilibrium with a minor tautomer P(OH)3. IUPAC recommendations, 2005, are that the latter be called phosphorous acid, whereas the dihydroxy form is called phosphonic acid. Only the reduced phosphorus compounds are...

Anonymous

Just replace an acidic H with K‌.

Anonymous

3:33 PM

youtube.com/watch?v=Y5Z567S8ViY This is fun =P

Anonymous

Google's toughest job interview questions

►

Anonymous

Especially the clock question!

Ramanujan

@JohnRennie, phosphine gas is: 1. Acidic, 2. Basic, 3. Neutral, 4. An oxidizing agent

John Rennie

@Ramanujan Did you try Googling for it?

ACuriousMind

@Ramanujan Honestly, stop just asking questions here without showing any kind of effort or interest in learning anything except the correct answer. It's not what this room is for.

Ramanujan

3:40 PM

@JohnRennie, I got the answer for the first question but not for second

John Rennie

@ACuriousMind: re that question about submitting to Arxiv - that question seems a bit fishy to me

Yashas

disputed = all the reviewers disagreed with my VLQ flag?

John Rennie

@Ramanujan Did you try Googling for it?

ACuriousMind

@JohnRennie It's certainly a rather odd question.

That doesn't mean we should sling it off to academia.SE :P

John Rennie

One wonders if he wouldn't be better off submitting to vixra instead :-)

ACuriousMind

3:44 PM

@Yashas It means the review ended with not validating the flag. For VLQ, that can be as many as 4 recommend deletion to 2 looks OK votes

John Rennie

2

Q: What does the "disputed" status of a flag mean?

What does the "disputed" status of a flag mean? E.g. Does it mean that the moderators couldn't decide whether the flag should be accepted or declined ? .

support flagging

ACuriousMind

So, no, it doesn't mean that all reviewers disagreed, just that enough disagreed to complete the reivew without deleting/closing the post

Yashas

If all reviewers agree and a mod disagrees, does it become a declined flag?

ACuriousMind

That...depends how the mod disagrees, I think

We can act on flags either from within the review queues or "as mods"

From within the review queue you should get a disputed like in the ordinary caes

But declining the flag "as a mod" will decline it rather than dispute it.

I don't think any of us uses the VLQ review queue, though, so generally mods acting on flags will give you either helpful or declined.

The declined flags - unlike the disputed ones - also should usually carry some sort of reason why they were declined

Fawad

Hi @ACuriousMind

Lets be a man and shake hand :D. Sorry for my past behaviour @ACuriousMind

John Rennie

4:00 PM

@Fawad that's treading close to the edge. I speak as a room owner.

→ 1 message moved to Trash

ACuriousMind

@Fawad You know what? Take a day off chat to reflect on how a proper apology looks like and why trying to force a reply from other people by insulting them is not really better than just insulting them. You've been warned about personal attacks before, e.g. here.

0celouvsky

4:18 PM

Did you ban him @ACuriousMind ?

Yashas

Mods from other communities are entering this room. This makes me suspicious :O

user228700

@JohnR: Are you around?

John Rennie

Hi

@Yashas I can only see one alien mod ...

user228700

Hi :-) I was wondering if you could help me out with something (It's utterly unfair, really, how I'm always the one asking for favors >.< I'm sorry for bothering you)

John Rennie

Yes, of course. What's up?

This time tell me in advance what I'm supposed to answer :-)

Yashas

4:24 PM

@JohnRennie There are 3 :D

user228700

@JohnRennie :-) I was wondering if you had in possession the soft copies of any of the books from the H.P series...

user228700

(Yes. I am hoping for a "Yes" :-P)

John Rennie

@Kaumudi.H Some might say I had all the HP books in ePub format ...

I think I installed an ePub reader on your laptop. If not I can give you a link to download one.

Yashas

@Kaumudi.H I think you should be studying for JEE Advanced at this time

user228700

@JohnRennie :-D I knew I could trust you!

user228700

4:27 PM

@Yashas I appreciate your input in this matter but I need to read something before bed and I am also in desperate need of H.P at the moment (I've already read all 7 books)

Yashas

Read Feynman lectures on physics

Balarka Sen

@0celouvsky so your thing turned out to be false?

Yashas

It is as good as any other novel.

Balarka Sen

@Yashas It's fine to have actual literary interests.

Yashas

Bonus: you learn physics as you read

user228700

4:28 PM

@Yashas It's not a novel.

ACuriousMind

@Yashas You haven't read any good novel, have you? :P

user228700

^

John Rennie

@Kaumudi.H you have mail

Yashas

@Kaumudi.H It is as good as a novel :P

user228700

@JohnRennie :-D Thank you! <3

Yashas

4:30 PM

@ACuriousMind I have read few of them. I can estimate the number of novels I have read to be around 15 and I have completed only 5 I guess :P

And those were years ago

Before 9th grade

Out of the 5 I have completed, 3 are Malory towers

Balarka Sen

though i advocate reading non-HP novels as well

Anonymous

Novels are addictive.

Anonymous

I don't read them anymore :-D

Yashas

:o

user228700

@BalarkaSen Same here but I am in need of some H.P for personal reasons at the moment :-)

John Rennie

4:31 PM

Reading a good book can broaden the mind. I read a book called Fifty Shades of Grey recently. That ... erm .. broadened my mind :-)

Anonymous

@JohnRennie ahhhhhhh =P

Balarka Sen

@JohnRennie Eh.

Anonymous

I saw the movies

Anonymous

=P

Anonymous

They were very "educative"

ACuriousMind

4:32 PM

15...back when I read much more I'd go through that much in like a month.

Yashas

I watched "The Man Who Knew Infinity" in December.

I keep watching documentaries every week :)

John Rennie

@Yashas Ramanjan?

Balarka Sen

I read and liked Hard to be a God, by Strugatskies.

Yashas

@JohnRennie Ramanujan*

Balarka Sen

a week ago

Yashas

4:33 PM

It is very emotional :(

Anonymous

Even I watched TMWKI

Anonymous

It was really good =)

Anonymous

With some great dialogues

Yashas

I like to watch animated movies :p

Shrek, Tangle, Frozen, Cars, Bolt, E Wall, Toy Story, etc.

Anonymous

You're a grown up baby :-D

user228700

4:34 PM

@JohnR: What app would I need to download on my phone to read them?

Balarka Sen

I can recommend good animated films but they're old and not American.

Anonymous

Well, tbh even I like animated Disney movies

ACuriousMind

@Yashas The Pixar movies are pretty good.

Balarka Sen

And they are truly artistic.

John Rennie

@Kaumudi.H I recommend Aldiko. Though the free version is a bit prone to showing ads if you leave the wireless on.

Yashas

4:35 PM

@ACuriousMind Yup. I am not sure what role they play in the movie making process but I do remember seeing their logo in most of the movies I watch.

user228700

@JohnRennie Wokay. I'll download it now. I got your mail; please give me a few minutes...

John Rennie

@Kaumudi.H Link here

Anonymous

@Yashas Because those are Disney movies!

Yashas

@BalarkaSen I like music from 1980s. Not sure if I would like the movies. I can give a try though :P

I keep listening to Groucho Max's videos.

Anonymous

Pixar

Pixar (/ˈpɪksɑːr/), also referred to as Pixar Animation Studios, is an American computer animation film studio based in Emeryville, California that is a subsidiary of The Walt Disney Company. Pixar began in 1979 as the Graphics Group, part of the Lucasfilm computer division, before its spin-out as a corporation in 1986, with funding by Apple Inc. co-founder Steve Jobs, who became the majority shareholder. Disney purchased Pixar in 2006 at a valuation of $7.4 billion, a transaction that resulted in Jobs becoming Disney's largest single shareholder at the time. Pixar is best known for CGI-animated...

Balarka Sen

4:38 PM

@Yashas Hedgehog In the Fog and Tale of Tales by Yuri Norshteyn. These are pre-80's and Russian.

Yashas

I also like the 1950s show where Groucho Marx takes part in the "What is my line" show

It is funny. The best one I have seen was about the "Skirt Blower"

Balarka Sen

(The latter is said to be one of the greatest animated films in history.)

Yashas

Skirt-Blowing Machine Operator on "What's My Line?"

►

Anonymous

You've eco test tomorrow! @Yashas Gooooo!!!

Yashas

I took my med 2 mins ago

need to wait 10 more mins

0celouvsky

4:39 PM

@BalarkaSen it's false in general. If you assume geodesic completeness it's true.

Balarka Sen

gotcha.

The 80's films (non-animated) are weird. I just watched one yesterday that I had on my list for some time.

user228700

Ah, @JohnR: You've included The Cuckoo's Calling as well. Did u read that book?

John Rennie

@Kaumudi.H No. Detective stories aren't my thing, though I must admit I did enjoy the Inspector Morse books. I only included it because I grabbed everything I had by JKR.

user228700

@JohnRennie Ohh, OK...

John Rennie

@Kaumudi.H Have you read it?

user228700

4:44 PM

No, I'm afraid not. I was reading the H.P series when that one came out.

user228700

Huh. Aldiko hasn't recognised these new books yet...

John Rennie

You need to open Aldiko and import the epubs.

user228700