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Andrew Dotson
United States
Приєднався 12 лют 2016
Hi I'm Andrew. I make physics videos, and I'm a gradstudent at NMSU doing research in theoretical nuclear physics. Wouldn't it be so weird if you subscribed haha.
For possible collabs/business inquiries, click the link below. For all other emails, please direct them towards smartpeopleask@gmail.com. I am no longer online tutoring.
For possible collabs/business inquiries, click the link below. For all other emails, please direct them towards smartpeopleask@gmail.com. I am no longer online tutoring.
D-Term Determined (Finally Writing The Paper)
Pick up a screen protector and more over at PaperLike:
paperlike.com/andrewdotson
A little update since trying to resolve normalization issue in my research.
I've Been Stuck On This Problem For... (Vlog):
ua-cam.com/video/lTjzU2PrTBs/v-deo.html
A New Chapter of my PhD Has Begun (SCET video from last year):
ua-cam.com/video/NWQEJfWpGu4/v-deo.html
Papers etc referenced:
-Textbook referencing for exercise:
Quantum Field Theory and the Standard Model (Matthew Schwartz)
Book I mention about electromagnetic form factors and fourier transforms:
Quarks and Leptons (Halzen and Martin)
-DIS figure with hard/soft/jet function
www.sciencedirect.com/science/article/abs/pii/0550321387902586
(will probably add more later today)
paperlike.com/andrewdotson
A little update since trying to resolve normalization issue in my research.
I've Been Stuck On This Problem For... (Vlog):
ua-cam.com/video/lTjzU2PrTBs/v-deo.html
A New Chapter of my PhD Has Begun (SCET video from last year):
ua-cam.com/video/NWQEJfWpGu4/v-deo.html
Papers etc referenced:
-Textbook referencing for exercise:
Quantum Field Theory and the Standard Model (Matthew Schwartz)
Book I mention about electromagnetic form factors and fourier transforms:
Quarks and Leptons (Halzen and Martin)
-DIS figure with hard/soft/jet function
www.sciencedirect.com/science/article/abs/pii/0550321387902586
(will probably add more later today)
Переглядів: 51 992
Відео
Numerical Integration with Variable Limits in Python
Переглядів 22 тис.10 місяців тому
Today we go over how to numerically integrate a function f(x,y,z;a) using Scipy, where x, y and z are variables to be integrated over, and a is parameter. We do this for 2 cases: 1) when the limits of integration are constant 2) when the limits are functions of x, and y, themselves. Check the Flexispot Amazon store and get your setup! Apply code 'COMHARDESK' to get an EXTRA 5% discount on my mo...
I've Been Stuck On This Problem For... (Vlog)
Переглядів 105 тис.Рік тому
I've been stuck on one issue of my research for quite a while now. In this video, I talk through one last idea I have to resolve the issue. Lets see how it goes. Link to cross section hyperphysics: hyperphysics.phy-astr.gsu.edu/hbase/Nuclear/elescat.html Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model: arxiv.org/pdf/hep-ph/0702030.pdf Song: False Alarms Arti...
A New Chapter of my PhD Has Begun
Переглядів 151 тис.Рік тому
Get 4 months for free on a 2-year plan here: nordvpn.com/andrewdotson. It's risk-free with Nord's 30-day money-back guarantee! In this video I talk about why I'm currently at Los Alamos National Lab (LANL), and talk about the effective theory I've been learning, Soft-Collinear Effective Theory (SCET). TMD School video lectures: ua-cam.com/channels/lWP7fyB4xNRYbGLtvUXVvw.html Dr. Iain Stewarts S...
Universities in 2050 Be Like
Переглядів 64 тис.Рік тому
Yes I will come fix your University. Get 4 months for free on a 2-year plan here: nordvpn.com/andrewdotson. It's risk-free with Nord's 30-day money-back guarantee!
Physics Memes Are Getting Better (Meme Review)
Переглядів 288 тис.Рік тому
Get started with NordVPN with a 30-Day Money-Back Guarantee!: NordVPN.com/andrewdotson Physics Meme Subreddit: www.reddit.com/r/physicsmemes/ Eigenchris's What is Momentum? (Joke Video) ua-cam.com/video/jm7jVi8akcc/v-deo.html&ab_channel=eigenchris
Lessons Learned During My PhD So Far
Переглядів 150 тис.Рік тому
Start your free trial at Brilliant!: brilliant.org/AndrewDotson/ Today I talk about a few mistakes I've had to (re)-learn from during my PhD in Theoretical Nuclear Physics so far.
LiveStream: Moments of Inertia Example (Thin vs Uniform sphere)
Переглядів 11 тис.2 роки тому
Just your friendly neighborhood physics livestream. I wanted to go through an example showing how changing the mass distribution affects the moment of inertia. Check out the first 2 videos of my mini series on moments Part1: ua-cam.com/video/0flh8ovhZ9k/v-deo.html Part 2: ua-cam.com/video/k24FnV3myO4/v-deo.html Pen Display used in video: amzn.to/3NoMnqb
Understanding Moments II: Center of Mass, Moment of Inertia, and All That
Переглядів 17 тис.2 роки тому
Today we cover moments of mass distributions, which allows us to define the center of mass and moments of inertia. Start your free trial at Brilliant!: brilliant.org/AndrewDotson/ Part1: ua-cam.com/video/0flh8ovhZ9k/v-deo.html The screen I use to write on is the Gaomon PD2200: amzn.to/3l7sA2j
Fermi's Golden Rule Or Something #Skit
Переглядів 27 тис.2 роки тому
Please point out where I'm going wrong I'm failing QM..
Understanding Moments Part 1: A Borrowed Concept
Переглядів 23 тис.2 роки тому
In this video I go over how we interpret moments of statistical distributions and introduce the Dirac delta function for describing discrete data continuously. The screen I use to write on is the Gaomon PD2200: amzn.to/3l7sA2j 0:00 Intro 0:42 Outline of Series 1:40 The Dirac Delta Function 11:53 Moments in Statistics 18:15 0th Moments 19:04 Number vs Probability Densities 22:10 1st Moments 29:1...
Basically How Science Will End (Skit)
Переглядів 41 тис.2 роки тому
Pretty much the only reason physics hasn't been finished yet truthfully.
Wow Physicists Are Such Good Listeners (SKIT)
Переглядів 52 тис.2 роки тому
Wow Physicists Are Such Good Listeners (SKIT)
My Week at Nuclear Physics School (TMD School 2022)
Переглядів 38 тис.2 роки тому
My Week at Nuclear Physics School (TMD School 2022)
TMD Nuclear Physics School 0: The Program
Переглядів 21 тис.2 роки тому
TMD Nuclear Physics School 0: The Program
You Laugh You Physics ft. @PapaFlammy69
Переглядів 82 тис.2 роки тому
You Laugh You Physics ft. @PapaFlammy69
Dealing With Low Motivation Studying Physics
Переглядів 74 тис.2 роки тому
Dealing With Low Motivation Studying Physics
How to be a "Successful" Physics Major (Skit)
Переглядів 130 тис.2 роки тому
How to be a "Successful" Physics Major (Skit)
Finally Taking Quantum Field Theory 1
Переглядів 57 тис.2 роки тому
Finally Taking Quantum Field Theory 1
I'm A Physicist and Flat Earther (Skit)
Переглядів 193 тис.2 роки тому
I'm A Physicist and Flat Earther (Skit)
Nuclear Physicists Answer Your Questions
Переглядів 17 тис.2 роки тому
Nuclear Physicists Answer Your Questions
Nuclear Physics Summer School Vlog Ep. 3 (HUGS 2021)
Переглядів 19 тис.3 роки тому
Nuclear Physics Summer School Vlog Ep. 3 (HUGS 2021)
Nuclear Physics Summer School Vlog Episode 2 (HUGS 2021)
Переглядів 15 тис.3 роки тому
Nuclear Physics Summer School Vlog Episode 2 (HUGS 2021)
Nuclear Physics Bootcamp Vlog (HUGS 2021)
Переглядів 27 тис.3 роки тому
Nuclear Physics Bootcamp Vlog (HUGS 2021)
The Einstein Field Equations | Tensor Calc Finale
Переглядів 27 тис.3 роки тому
The Einstein Field Equations | Tensor Calc Finale
Me, a JEE student who has to memorise everything for each and every case in physics, because I don't have time to understand all the derivations
Awesome video. But why can't the electric and magnetic fields be represented as four-vectors instead of a tensor?
It is kinda danger to put Jackson and a knife on the same table.
1:12 bold of you to assume that the identity is trivial to my high school physics ass.
I miss the meme reviews
As a graduate student in materials engineering, I feel like the diagnosis from this video tells me I’m in the wrong program…
Thank you so much sir ❤ love from India 🇮🇳
Chad
theoretical physics is so cool
I have interesting story from my highschool. I had a good teacher of physics but he was quite burnt out. He had a lot of knowledge but wasn't motivated to get new when I asked him tricky questions. When I was in graduating year me and my classmates chose subjects we wanted to be tested from. However I was the only one that voted for physics and school couldn't afford to give me classes I needed. So I started to study by myself. It was pretty hard because when there were some easy concepts that I couldn't understand, I didn't have anyone to explain them. On the other hand it was big advantage because I could come up with something by myself and I learned how to think, be independent and with that it was easier to remember the topics
Thank you so much for your videos! Some questions to this one: 1. If you say A^\mu = (..,...) you're actually saying that a component equals a vector. Is this just sloppy physicist style or is A^\mu really the name of the whole vector? 2. Why do you write the indices of the E up? 3. Taking down the indices of the partial derivatives (while regarding the sign), does it just "work" or is it mathematically correct? Because applying a dual object to a "normal" object isn't the same as applying a "normal" object to another "normal" object. ("normal" = not dual)
Good questions! 1) If the index is free (ie not repeated and summed over), then it is usually interpreted as a vector equation. You can always evaluate the index for mu = (0,1,2 or 3) if you’re interested in a specific component. You just have to do it for both sides of the equation. 2) I have to watch the video again to see what you’re referring to, but it sounds like I’m referring to E as an ordinary vector with upstairs indices. I have a video on contra/co/-variant and ordinary vectors and on the metric tensor which goes into much farther detail on the answers to your questions I think. 3) applying the metric to raise and lower indices both works and is mathematically correct. This is not unique to the partial derivatives, it works with all tensors by construction. The metric acting on a contravariant vector defines a covariant vector. But the scalar product will always involve 1 contravariant and 1 covariant vector, indices summed.
@@AndrewDotsonvideos thank you so much!
Is this one not #justgirlythings?
Maybe i have in idea who’s she is
And I have every weird prefix for big numbers up to a novemtrigintillion (a googol is 10 duotrigintillion)
Even i know that the globe is more complex than the flat...and books tought me that world is round and Nasa and the movies...so i have to say the earth is...... a globe .
I am finishing up an MSc Physics course.. I took the QM exam, I think I failed it. I still don't get any/much of this.. :(
Yes Earth is flat .
First time I got biologist second time I got physicist?
Heading into grad school this fall.
'Ed Iotte'... uh huh
1:44 take g 10
If anyone struggleing, there is an error: in d/dx , when expressed, the d/d(phi) member should be with a negative sign (it appears around 4:03)
Sorry for the mistake! Thank you for time stamping it
I don't think I've ever been able to do 13x14 in my head, nor will I ever be able to... so lucky to have a calculator lol
I clicked on this because he is handsome lol
the funniest part of this video is a physicist doing actual math
The way you started the video I thought it was gonna be like drink water, don't procrastinate kind of videos but this was actually tremendously useful. How can you say that everyone knows that already in the into? At least for me I have a terrible sense of timing. Most of the time I can't judge how many days I should study and by what quantity. I always forget to write down things and do the simple math just like you did which would apparently save me a lot down the road.
I just put this in a playlist so that I don't forget where to find this video when i'll inevitably forget where the expression comes from again
I can think of so many times in life when I screwed up in school and many times it began by over committing myself and not making sure I had time to make sure I'm enjoying my life. I'm not saying we should blow off our work all the time to go out with friends but we do have to be mindful about making sure we are meeting our physical, emotional, and psychological needs. Those don't go away. They're as important as food and water. Remember, nature always wins so we must respect it.
@Andrew Dotson When you finish your formal education I sincerely hope you will keep posting. Its evident that you love communicating and entertaining. You have all the tangibles and intangibles needed to be a big star. I wish you all happiness in life!
Everything in this vid is 100% accurate
David Tong!!! I would not have been able to complete my thesis without his lectures on the quantum Hall effect
This video is a national treasure
@Andrew Dotson I don't think Einstein got all A's so you're good bro. You have your whole life to keep learning.
Thanks for letting me know that i should never take a course in theoretical physics. My course in QM was hard enough as is
u are the chillest dude much respec
Will you post a video after you're done with your thesis defence?
As a theoretical physicist, I am feeling personally attacked by the “boundary terms are always zero” line. Because boundary terms in the Lagrangian density is our kryptonite.
This video is really special. It captures what I love and miss about research - a feeling I never quite got to experience at this depth from the undergraduate level. This feeling is exactly why after years of being in the workforce I’m returning to grad school this fall. Thank you for your genuine experience that you share through your vlog.
As a machanical engineering student, i feel like these guys are crazy
Thanks for the awesome explanation! I have a question about the way you multiplied M^-1 and f(x). We should get two components, not ( )+( ). No?
There is a more straightforward proof by rewriting the quantum state in terms of position(or momentum) coordinates by inner products formula. And then rewrite the quantum state in the inner product as momentum(or position) specification, and finally compare to the Fourier transform formula to get the result. The proof is much simpler.
Bro is so cute
I'm 42. This generation is way more social than my generation.
He's over in Area 51 right now as a government slave cloning aliens.
Just commenting here to express the need of new new videos 😢
Philartapprec 😂😂
Is it possible to calculate the Green's function for the Poisson's equation for Newtonian gravity
❤