The h Bar

kevin Tah N.

12:00 AM

hmm , I think I need something clearer lol

I am cursed. . I can't understand it lol

Slereah

@Danu I know

I had this notion that it might also refer to penrose notation for some reason tho

no_choice99

hi guys can i delete an old post of mine that I feel is useless for this website (physics.stackexchange.com/questions/172360/…) , it drew almost no attention, etc

it's a homework type of post

dmckee

@no_choice99 If you see the "delete" text at the lower left of the post you can delete it.

I believe the system only prevents owners from deleting material that has upvoted answers or is locked by a moderator.

no_choice99

ok thank you very much

kevin Tah N.

12:22 AM

ok finally figured it out . . . physics.ohio-state.edu/~mathur/italy1.pdf

was not that hard either, just a lot of substitution, then some regular plots accompanied by new vocabulary

exciting stuff

Just got panda express . . . . yeeehaaaa!!

So what I have learned so far from trying to do path integrals- - - I never really learned calculus well enough

----- QFT is a big integration orgy

Slereah

QFT has a shitload of integrals

especially once you start doing loops

kevin Tah N.

It's amazing people actually sit down and compute these things. I used to think at least some computer thing could understand and help in analytically computing these things but neh, gotta do it by hand lol

I am going to go for a run and then come back , and try to see if today would be the day I understand some of the gr things that have been eluding me for years. Hopefully I can find a gr book that is written in the spirit of anthony zee. Zee reduced the path qft to a regular integral, and introduced feynman diagrams at that point already, then upped the anti gradually . . . . . till the end. It was quite an enjoyable excursion.

ACuriousMind

1:17 AM

@0celo7: Something to chuckle for you: Are Bajorans of human origin?

dmckee

1:45 AM

@kevinTahN. No one learns calculus well enough until they have to really apply it. Except Feynman, of course.

Mikhail

2:00 AM

Hey does anybody have a copy of library.seg.org/doi/abs/10.1190/1.1441417 ?

My school's library apparently doesn't have it...

Sir Cumference - Pies

This hat is just great

skull petrol

2:45 AM

Feynman creates calculus for his own understanding @dmckee

According to his quote, what I cannot create, I do not understand

Mikhail

yeah, but he also boasted a lot

skull petrol

That's his personality.

ACuriousMind

@skullpetrol He could've created a well-defined path integral then :P

skull petrol

:D

skull petrol

3:34 AM

Susskind said Feynman always looked for the simplest way to approach problems.

Feynman's scientific style was always to look for the simplest, most elementary solution to a problem that was possible. If it wasn't possible, you had to use something fancier. But no doubt part of this was his great joy and pleasure in showing people that he could think more simply than they could. But he also deeply believed, he truly believed, that if you couldn't explain something simply you didn't understand it.

His creations that he did understand must have been made as simple as possible.

Mikhail

I would argue that the fields have grown more complex, since his time, and that today a simple explanation is not feasible.

skull petrol

3:55 AM

For some things, yes.

But the danger of not being able to see the forest for the trees will always exist.

kevin Tah N.

4:45 AM

@dmckee Feynman is the man. I recently read "Quantum man" by Krauss. There are all sorts of achievements attributed to him that I was not even aware of. Also yes, I am only beginning to appreciate how far calculus can go. I need to work hard to be able to begin applying it. The good all days of just calculating areas, volumes, velocities etc are long gone. I have to be an adult now lol

Feynman is the man.

David Z

6:51 AM

@kevinTahN. functional integration, I highly doubt, but there is SymPy for doing some symbolic calculations in Python.

(and incidentally half the point of Wolfram Alpha is to show step-by-step solutions for things)

Mikhail

7:13 AM

well automatic integration exists, but its probably harder compared to get a mathematica document to integrate for you...

user54412

9:03 AM

So we have tags electric-fields, magnetic-fields, electrostatics, and magnetostatics. Thoughts on redirecting all of these to electromagnetism?

Mikhail

well that statics are different...

Fuck, I have a large project due in 10 hours and I can't do the derivation.

Help me o'atheist god

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