/sci/ - Science & Math » Thread #10138081

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/physics/ - Physics General

Anonymous Tue 13 Nov 19:28:50 2018 No.10138081 View Reply Original Report

Quoted By: >>10138174 >>10139391

This thread is dedicated to the discussion of physics.

Anonymous

Anonymous Tue 13 Nov 2018 19:32:07 No.10138084 Report

Quoted By: >>10138090

lol i have sat on that pipe

Anonymous

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Anonymous Tue 13 Nov 2018 19:32:23 No.10138086 Report

Quoted By: >>10138089

math anon here. dabbled in intro physics in my first year but haven't touched it since. what is the best way to get back into physics after 3 years of just doing pure math? is there any books you can recommend?

Anonymous

Anonymous Tue 13 Nov 2018 19:33:15 No.10138089 Report

Quoted By: >>10138094

>>10138086
Classical Dynamics Of particles and Systems

Anonymous

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Anonymous Tue 13 Nov 2018 19:33:26 No.10138090 Report

Quoted By: >>10138097 >>10138763

>>10138084
his pipe?

Anonymous

Anonymous Tue 13 Nov 2018 19:39:30 No.10138094 Report

Quoted By: >>10139338

>>10138089
Thanks, just checked it out and it seems like it will do me good.

Anonymous

Anonymous Tue 13 Nov 2018 19:39:59 No.10138097 Report

Quoted By: >>10138100

>>10138090
lewd

Anonymous

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Anonymous Tue 13 Nov 2018 19:41:34 No.10138100 Report

Quoted By:

>>10138097
no one can resist

Anonymous

Anonymous Tue 13 Nov 2018 19:42:41 No.10138102 Report

Quoted By: >>10138116 >>10138343

Good intro books for particle and nuclear physics?

Anonymous

Anonymous Tue 13 Nov 2018 19:48:40 No.10138116 Report

Quoted By:

>>10138102
modern particle physics by thomson

Anonymous

Anonymous Tue 13 Nov 2018 20:01:58 No.10138140 Report

Quoted By: >>10138149 >>10138310

I'm thinking about going into research. Biophysics or Optics?

Anonymous

Anonymous Tue 13 Nov 2018 20:08:14 No.10138149 Report

Quoted By: >>10138159

>>10138140
Biophys

Anonymous

Anonymous Tue 13 Nov 2018 20:12:16 No.10138156 Report

Quoted By: >>10139353

Alright anons, I am a math/physics major in college. I am applying to math schools for PhD because my school did not prepare me as well in physics side of things (ie less rigor, no offering beyond the usual QM, EM and so on).
in grad school, I am thinking to do something in topology or geometry with mathematical physics in mind. so basically do i have any possibilities of eventually switching back to theoretical physics?

Anonymous

Anonymous Tue 13 Nov 2018 20:13:55 No.10138159 Report

Quoted By: >>10138172 >>10138328 >>10138333

>>10138149
Why?

Anonymous

Anonymous Tue 13 Nov 2018 20:20:08 No.10138172 Report

Quoted By:

>>10138159
Why not?

Anonymous

Anonymous Tue 13 Nov 2018 20:20:12 No.10138174 Report

Quoted By: >>10138178

>>10138081
I love how a lot of these threads just turns into fags asking for asking for advice they already know the answer to.

Anonymous

Anonymous Tue 13 Nov 2018 20:22:07 No.10138178 Report

Quoted By:

>>10138174
you haven't added anything of use to anybody. good job.

Anonymous

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Anonymous Tue 13 Nov 2018 21:25:58 No.10138310 Report

Quoted By:

>>10138140
Optics is more comfy. Except particle physics, most experimental research is based on optics (ultracold systems, many body quantum systems, quantum simulation, a bunch of quantum computers...).
Biophysics sounds like spending your life trying to explain math to your coworkers.

Anonymous

Anonymous Tue 13 Nov 2018 21:34:00 No.10138328 Report

Quoted By:

>>10138159
Shut up and take it

Anonymous

Anonymous Tue 13 Nov 2018 21:37:49 No.10138333 Report

Quoted By:

>>10138159
More work, more to learn, biology needs significantly more physicists and mathematicians working with molecular and ecological bio research teams. Im doing Biophys with an emphasis on ecology and genetics. Its completely open ended and one of the most satisfying projects you could set your sights on.

Anonymous

Anonymous Tue 13 Nov 2018 21:41:57 No.10138343 Report

Quoted By:

>>10138102
Introduction to particles physic by Griffiths is quite good even if Griffiths can be a meme sometimes

Anonymous

Anonymous Tue 13 Nov 2018 22:53:33 No.10138502 Report

Quoted By: >>10138651 >>10139344

Favorite math techniques?

inb4 stuff everyone uses like fourier transforms

Anonymous

Anonymous Tue 13 Nov 2018 23:51:36 No.10138651 Report

Quoted By: >>10138674

>>10138502
throwing toys
(it's a real thing)

Anonymous

Anonymous Tue 13 Nov 2018 23:57:34 No.10138674 Report

Quoted By: >>10138688

>>10138651
elaborate?

Anonymous

Anonymous Wed 14 Nov 2018 00:02:31 No.10138688 Report

Quoted By: >>10139318

>>10138674
it's a statistical method used in high-energy experiment. basically a toy is a pseudodataset you generate from some prediction, and then "throwing toys" means generating a lot of slightly different toys (the differences based on e.g. systematic uncertainties) and then you calculate what you need from using all the toy pseudodata sets

e.g. https://indico.cern.ch/event/676637/contributions/2771270/attachments/1550126/2434880/swiatlow.pdf

Anonymous

Anonymous Wed 14 Nov 2018 00:15:50 No.10138715 Report

Quoted By: >>10138726 >>10138731

Can someone explain what the restricted Lorentz group is? How is it different from the Lorentz group?

Anonymous

Anonymous Wed 14 Nov 2018 00:22:23 No.10138726 Report

Quoted By:

>>10138715
restricted Lorentz group doesn't include some transformations like swapping time for negative time and mirror reflections of space

Anonymous

Anonymous Wed 14 Nov 2018 00:22:40 No.10138731 Report

Quoted By: >>10138738

>>10138715
Lorentz group = SO(3,1)

Restricted Lorentz group = connected component of the the identity in SO(3,1)

Anonymous

Anonymous Wed 14 Nov 2018 00:26:11 No.10138738 Report

Quoted By:

>>10138731
>t. mathfag

Anonymous

Anonymous Wed 14 Nov 2018 00:35:28 No.10138763 Report

Quoted By:

>>10138090
Sorry, he only fouls gods for fun

Anonymous

Anonymous Wed 14 Nov 2018 04:14:30 No.10139225 Report

Quoted By:

beans

Anonymous

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Anonymous Wed 14 Nov 2018 04:37:29 No.10139273 Report

Quoted By: >>10139287

Is Griffiths /ourguy/ or what?

Any other authors who have a super solid selection of books on different topics in physics?

Anonymous

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Anonymous Wed 14 Nov 2018 04:44:47 No.10139287 Report

Quoted By:

>>10139273
our. guy.

Anonymous

Anonymous Wed 14 Nov 2018 05:04:08 No.10139318 Report

Quoted By: >>10139325 >>10139348 >>10139535

>>10138688
> be me
> edgy pp PhD
> gonna discover SUSY for teh lulz
> anon you must use HistFitter
> lol whatever
> it's the single worst piece of fucking software written on this plane of existence
> throws different errors every time you run it, without changing the code
> you get it to work finally after reading many threads on cern forums (other people similarly hate its living guts)
> come back two days later to check result, again a new error, again not changed a single piece of the code from when it last worked
> can't give up now anon, they need the results for moriond,
> spend the next few months, 24/7 working on this pos analysis, meetings twice or three times every fucking week, even when I don't have anything to present
> whatsthefuckingpoint.jpeg
> become nervous wreck, no money and no gf, barely speak to anyone outside of cern and physics, out of shape
> finished PhD, looking for a job outside academia,
> talk with degenerate scum aka the HR people
> lol nigga you need work experience,
> wtf I have PhD which I spent four years of my life on it
> get a job for 33k, can barely afford to pay rent, still no gf, can't get any worse can it
> posts on /sci/
Yeah, I have been down that road anons

Anonymous

Anonymous Wed 14 Nov 2018 05:07:17 No.10139325 Report

Quoted By:

>>10139318
>t. wasn't good enough at throwing toys

Anonymous

Anonymous Wed 14 Nov 2018 05:15:22 No.10139338 Report

Quoted By:

>>10138094
Berkeley sequence for undergrads works, too. Purcell’s book is pretty good for intro E&M.

Anonymous

Anonymous Wed 14 Nov 2018 05:16:41 No.10139344 Report

Quoted By:

>>10138502
Green’s function

Anonymous

Anonymous Wed 14 Nov 2018 05:18:37 No.10139348 Report

Quoted By:

>>10139318
>SUSY
That’s where you went wrong. No one believes in that retardation... at least for the past 2 decades.

Anonymous

Anonymous Wed 14 Nov 2018 05:19:30 No.10139353 Report

Quoted By:

>>10138156
You could go for mathematical physics somewhere like Indiana University, or I think Texas A&M. I think that would be a better fit if you feel stronger about the math than the physics, but still want to do physics. You could also look into computational physics.

john titor

john titor Wed 14 Nov 2018 05:39:59 No.10139391 Report

Quoted By: >>10139406

>>10138081
>serncucks release a public document denouncing timeline branch theory to cover their asses

Anonymous

Anonymous Wed 14 Nov 2018 05:42:21 No.10139395 Report

Quoted By: >>10139432 >>10139434 >>10139557 >>10141535

What do all the physicists do when a unified theory is put together and all of the questions of our reality are solved? Is the entire field a race to put everyone else out of a job?

Anonymous

Anonymous Wed 14 Nov 2018 05:45:14 No.10139406 Report

Quoted By: >>10139502

>>10139391
>namefag posts shitpost to release gas from his ass

> What do all the physicists do when a unified theory is put together and all of the questions of our reality are solved? Is the entire field a race to put everyone else out of a job?
test it, probably prove it wrong

Anonymous

Anonymous Wed 14 Nov 2018 05:55:00 No.10139432 Report

Quoted By: >>10139469

>>10139395
As if that’ll ever happen.

Anonymous

Anonymous Wed 14 Nov 2018 05:56:52 No.10139434 Report

Quoted By:

>>10139395
Decades or centuries in the future. Having a unified theory doesn't even mean you have all the problems solved. And if all physics were solved, then it would be a good link into chemistry, then biology, etc.

Anonymous

Anonymous Wed 14 Nov 2018 06:19:19 No.10139469 Report

Quoted By: >>10139488

>>10139432
Sure, but there's an end goal, right? I mean in the philosophy of it all.

Anonymous

Anonymous Wed 14 Nov 2018 06:26:07 No.10139488 Report

Quoted By: >>10139496

>>10139469
Sure, the end goal is understanding something a little bit more. We reach the end goal every century or so, but there’s always dragons lurking in the cyclop’s anus.

Anonymous

Anonymous Wed 14 Nov 2018 06:29:16 No.10139496 Report

Quoted By: >>10139505

>>10139488
You can't possibly know that for sure.

john titor

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john titor Wed 14 Nov 2018 06:31:16 No.10139502 Report

Quoted By:

>>10139406
i'm laughing at you right now, simpleton

Anonymous

Anonymous Wed 14 Nov 2018 06:33:05 No.10139505 Report

Quoted By:

>>10139496
I’m more sure of dragons in a cyclop’s anus than I am about the end goal of the drive for understanding. Even if physics is “unified” just think of all the holes we still have in basic physics.

Anonymous

Anonymous Wed 14 Nov 2018 06:52:37 No.10139535 Report

Quoted By: >>10139567

>>10139318
What the fuck did you expect in pp? Academia is the only way and if you give that up you might have as well wasted 10 years of your life instead of UNI, retard.

Anonymous

Anonymous Wed 14 Nov 2018 07:12:29 No.10139557 Report

Quoted By:

>>10139395
>unified theory
>all of the questions of our reality are solved?
That's 10^23 equations you have to solve with this theory of everything at minimum to even make a basic statement about a kilogram of anything. Finding clever ways to tackle this problem without starting at the very very very rock bottom will always be a thing.

Anonymous

Anonymous Wed 14 Nov 2018 07:16:37 No.10139567 Report

Quoted By:

>>10139535
Good advice I got from a post doc was that to save up as a post doc, you make almost double as a graduate student at that point. Let’s say you can’t continue or don’t want to continue in academia. Best options are to leave your post at some point and just gun it for industry. Your advisor/boss will be upset but will not want a pupil of theirs to go homeless. They might cut funding, but you got savings. Just spend that time to prep for job interviews. They have books available to prep for job interview questions. Study them like you’re studying for quals for a few months. Keep applying. Go through 2-3 interviews a week and get the benefits you’re supposed to get. If they see PhD, then they want PhD work put in. You’re not going to coast in on a piece of paper.

Anonymous

Anonymous Wed 14 Nov 2018 16:01:51 No.10140118 Report

Quoted By: >>10141524

>want to study physics, either CMP, plasma or nuke
>am really not good at newtonian mechanics/kinematics
I'm good at math but I find it hard to apply formulas to real physical problems, I probably lack common sense. As a result I'm struggling with classical mechanics. What do?

Anonymous

Anonymous Thu 15 Nov 2018 02:56:52 No.10141524 Report

Quoted By: >>10142055

>>10140118
>can't apply physics to physical problems, prefers playing with equations
sounds like a future string theorist

Anonymous

Anonymous Thu 15 Nov 2018 03:03:19 No.10141535 Report

Quoted By:

>>10139395
>what is Godels Incompleteness Theorem
Brainlet.png

Anonymous

Anonymous Thu 15 Nov 2018 07:18:10 No.10142055 Report

Quoted By:

>>10141524
But I don't want to get into cosmology and HEP, I want to work on real world problems.

Anonymous

Anonymous Thu 15 Nov 2018 07:42:07 No.10142104 Report

Quoted By:

>Biology Major with Math minor and took Gen Phys.
>Notice there is a Physics with Biophysics Specilization.
>Already completed most of the degree, so apply for the major. Currently taking senior level physic classes which are fine.
>Holding off a 1 credit class off for Biology degree. I can't finish the last class or else I have to apply for post bac status.
>Biophysics is all cell shit. The research opportunities (required) is all cell shit.
>mfw I thought I'd learn about the forces of the skeleto-muscular system and I could apply that to robotics. Serious.

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