@JamalS I did enjoy my dinner too! Meatballs, butternut squash & pumpkin soup, salad, and sauerkraut

@KyleKanos: Glad to hear it; I had Thai food this evening.

I currently have forgotten what a proper meal is like. Sleeping so randomly that I end up having breakfast and snacks.

General relativity question: How many independent constraints does the Bianchi identity in $N$ dimensions give on the Riemann tensor?

(independent as in not already in place due to the tensor's symmetries)

@Danu: This goes through the count in detail: physicspages.com/2014/04/06/…

@JamalS Thai food sounds fun

@KyleKanos: I adore Thai food, I'm lucking I found a restaurant that doesn't Europeanise the cuisine - they try to remain authentic.

It's been a while since I had Thai food

Though, it's likely the Americanized version that I last had

@KyleKanos: One of my favourite dishes is 'morning glory.' It's a vegetable grown in Thailand, and it's served quite plainly, but it's delicious.

@Phonon Anand, fuck yeah!

dat preparation though

???

@JamalS Thanks for the link, but it's not what I asked. I know the situation in 4 dimensions

I want to know whether anything changes for higher dimensions

@JamalS chess24.com/en/watch/live-tournaments/worldChampionship2014/3/1/…

@Danu: His reasoning is generalizable to arbitrary dimensions.

kk then I'll have a better look at it

thanks

@JamalS Don't think I've tried that

I'm more of a meat-and-vegetables kind of guy

And by that, I mean more classical American, German, Irish, and English recipes

@KyleKanos: Ah, I see. I prefer Asian cuisines, as well as French.

@KyleKanos: I also like fusion, but done right. For example, Tetsuya Wakuda's restaurant in Singapore combines French and Japanese.

Never been to that side of the world. Only been to Mexico, England, France, Italy, and Germany

(Outside the US, obviously)

@KyleKanos: Whereabouts in France?

Versaille & Paris

@KyleKanos: Well, in Paris your options are enormous for great food, but if you go back again, and like souffles, I'd recommend 'La Cigale Recamier.'

It's a simple restaurant, but 90% of their dishes are souffles, personally they are the best souffles I've had.

I think I spent 2 or 3 days there about 15 years ago ;)

Oh

It was a High School summer trip

My parents said I had the choice between Europe for Junior-year trip and Florida for Senior-year trip

I made the obvious choice

Yes, definitely the best choice.

I later went to Germany for a wedding

Near Wurzburg

For eight years, I lived near the border between France and Germany to the east.

Huh, you people have been efficient today, only two things in my close queue from the whole day

It's sad how many questions get closed... People just don't read the guidelines!

@ACuriousMind Yeah, I've somehow found 17 things today

It's been a busy last few days

On topic?

Hi everyone

@pourjour Hi there!

anyone good at electromagnetism?

Just tell us your question :)

It's not really a question

but I need some ressources to study electromagnetism

like a course with examples please

What's your background?

@pourjour Have you looked at our book recommendation question?

Or rather, this

not yet but I will, thank you

is there any specific textbook for graduated students

basics thing like Maxwell equations

@pourjour: To recommend a suitable resource, it would help if you could tell us what you have already studied. For example, you can't start learning Maxwell's equations until you have at least taken a vector calculus course.

@JamalS Generally I need help on all such things from vector calculus (divergence, curl...) to electrostatic and magneto-static to maxwell equatons

@pourjour: Check out MIT's OCW site, ocw.mit.edu. Course 18.01, 18.02 and 18.03 cover basic calculus, some aspects of vector calculus and differential equations. Course 8.02 deals with electromagnetism, and there's some in 8.03 also. I think these will be accessible to you.

Thank you

@pourjour: There are also problem sets and exams available, in addition to the lecture videos. The syllabus page for each recommends a textbook.

^

How does one define a field momentum operator, usually?

I've only seen it defined through the number operator

oh, got it, nvm

I hate how different the approaches of all field theory books are