I found a lot of things can't be perfect. I prefer to inhabit a hill than downtown. But getting food isn't easy when being on a hill.

there was a wall tiger in my room. It was crawling everywhere on the wall before I slept, and it was still in my room when I waked up.

what kind of dry food solves hunger more effectively?

@CaptainBohemian What is currently provided for refugee camps? I bet UNHCR have already thought of this, so they might have some info on their website

@B.Brekke you mean unhcr.org? It is raising money like a lot of other places.

@CaptainBohemian Hmm, I was expecting them to have some info about what they provide to feed as many as possible efficiently, but I couldn't find anything

@B.Brekke I think solving hunger is a difficult problem. It's really not easy to find food which can solve hunger for long.

@CaptainBohemian Definitely

@B.Brekke I admire camels for they have the body structure which make them be able to progress for long in a desert with harsh weather after eating a meal. I heard they can eat one meal to sustain for a week in a desert.

It doesn't seem low effort and it's not just a check my working question,

bruh my angular velocity is still closed

I worked so hard on it not looking like a HW type, and focussing on a specific issue

Its still closed ://

c'mon, SE

give me my extra Marshal badges

@satan29 FWIW, I would say that the language still needs some significant work in clarifying both the phrasing and the structure. That's not an easy post to read.

@FakeMod :)

Are you free?

Any idea why the charge moves in that particular circle?

Its not about problem solving, more about stability

Consider a magnetic field coming out of the paper. If a charge enters from S to N, you know what circle it makes, don't you?

(not enters, starts would be better)

I mean, the path it takes

In the case I mentioned it moves to the right, right?

A clockwise circle.

Think of it as a current loop.

Fine. Now, in which direction does its magnetic moment point?

Inward, right?

into the plane.

yes

But, that is unstable equilibrium.

Isn't it?

Why does the charge go to an unstable equilibrium, if it can turn anticlockwise into stable eqm?

Though I should not ask why nature works that way, it seems strange...

I thought it was non-mainstream to post in the main site

OK, bye

@FakeMod, probably yes. (Still, it lets me evade Fleming's rule in problems ;D)

@ACuriousMind Hi

can anyone tell me what rule is going from the 2nd to the 3rd line here?

rearranging the operators like that is very bizarre to me

@EmilioPisanty Not sure if I'm playing devil's advocate here, but I think it might be intentional to not endlessly award badges for flags - we already have a small but non-zero set of users that have voted (probably more or less randomly) on every site on the network exactly as much as they need to to get all the voting related badges. I'm sure the same happens for flags, and one might want to avoid incentivizing users to raise an endless stream of flags.

Many things can technically be flagged (and hence the flags not declined, so not triggering the flag-ban) but in volume it might overwhelm mod capacity.

@Krishna hey

Oh wait I think I literally just got it, the $\hat y$ is being pulled out of the x derivative and then the partial derivatives are commuting

@Charlie What do you mean by "rule"? They've just moved some operators through other operators with which they commute, there's no special rule there

I was thinking of them as matrices which can't just be commuted

ahh and each angular momentum component operator commutes with the other position operators

that sounds familiar

Matrices are operators - you can also commute matrices if they commute, rather tautologically so...

I tried to flag a post as belonging to another site, but I could see only math and meta.

@Krishna That's by design. Raise a custom flag if you want to suggest another migration target, we don't have a fixed migration path to any site but math.

The question gave the commutator of $\hat p_i$ with $\hat r_i$ but didn't mention the commutation of the different directions, ty

I got got

OK, thanks!

The Carter-Penrose diagram in general relativity, which is to demonstrate the causal structure of a spacetime manifold, is more profound than the Cause-and-Effect diagram.

He basically summarizes the original Dirac paper on monopoles in that video, pretty cool

@FakeMod ...I don't think you need to understand German to recognize that as a login page, nor are all people who understand German German :P

I am guessing if you knew German you would know you (apparently) don't need to login to that page, because it certainly looks to me like you need to login :p

That smells a bit too reliant on stereotypes to me. (Also, Scandiavians are stereotypically at least as direct as Germans are)

@bolbteppa I think Finn is accessing the site from within the university's network and therefore doesn't need to login because there isn't a way to skip the login and no "Jetzt Laden" button.

@FakeMod In any case I'd ask you to respect Qmechanic's - and other users' who don't use their real name - wish to remain anonymous.

@ACuriousMind well, there's a counter-devil's-advocate argument to be made that if you make those badges a get-as-many-as-you-can, then those users are unlikely to continue that behaviour through to even a second badge award

the driver for that behaviour is generally a completionism thing

you can't get completionist if there's no bottom

@EmilioPisanty Hi

@EmilioPisanty but you can still try!

Alas, I see your point