Self Definition and 584 Threads

Recently at a second-hand bookstore, I found this McGraw Hill text for only $2 dollars, so naturally I had to buy it (any 500+ page book about physics for $2 bucks is a great deal). I wonder though, is it useful at all to someone already taking physics courses in college? Or would it just be a...

It had to happen eventually. The world's first fatality while a car was driving itself. Self-Driving Tesla Was Involved in Fatal Crash If the car can't see a semi turning in front of it, you have to wonder if it can see a motorcycle or even other cars.

Can someone help me to know by looking at a flow or data of the flow (velocity measurements at specific points) if a flow is self-similar? I'm thinking of something like a vertical jet emitting fluid into a transverse velocity field. But any example works. Thanks!

Hi everyone. For anyone who has the book. I am going through Quantum Field Theory for the Gifted by Amateur Tom Lancaster and Stephen J. Blundell. Are the topics enough to prepare me for a course in QFT and then Advanced QFT? Of course I can look for other resources. But I just want to know how...

I am really into climate change , and the physical models they use to relate it to other factors such as diseases , however i don't know where to learn about it , i am currently enrolled on the 8th trimester of electronics engineering (out of 12) and in the 4th semester of physics(in a different...

I was wondering if anyone knows of good self study books to help me in school. I am going to be a sophomore next year and trying to be extremely prepared. Here are the classes: Chemistry Honors World History AP Algebra 2 Honors European History AP English 2 Honors Spanish 3 Honors Thanks...

Hello, I'm taking the GRE this comming fall. Unfortunately my university doesn't do QM until your senior year. Which means I won't see much QM in school until after I take the GRE. I want to study up some this summer to increase my chances of getting a good score. What book would you suggest...

Is there a one-stop textbook for physics major students, a single book that teaches you the required math for a particular physics subtopic before teaching you the physics (or teaches you both the math and physics together)? I find standard undergraduate textbooks, such as Classical Mechanics by...

This year I have been doing a BTEC in Engineering, which is equivalent to 1.5 A levels and I am thinking about what to do next year. I have three options, I could carry on and do the second half of the BTEC, which is equivalent to another 1.5 A levels, I could do a foundation year for university...

I've noticed that my routine for studying mathematics, physics, chemistry etc. isn't doing me any good. It seems that no matter how much effort i put into studying the material, I am always one step behind and my test scores come back horrible. My current routine will be to read through the...

Hi people! I am a high school rising senior who is looking to self study electricity and magnetism over the summer. Particularly, my aim is to take the ap physics c electricity and magnetism exam as a result of this self study but also to realize if I want to work with hardware/electrical...

I'm going to reinforce my physics knowledge via self study in my spare time, the amount of time available is varying since I'm a parent and have a full-time work... My math background: Real and complex analysis, linear algebra (abstract, but finite-dimensional), basic abstract algebra, number...

I read this somewhere "what you think you become" said by Buddha. I'm convinced that how you visualise yourself to be is how you really are.That must apply to your future self too. I'd be glad to see your worthy answers.

So I am in the area in between years 10-11. I am currently on exchange and I have a lot of time so I thought I would study for year 11's topics so that the next few years would be easier. The main subjects I wan't to focus on are Biology and Chemistry. I had bought a book without doing any real...

Hi all, I consider myself a physics self-studier (although I've taken the introductory physics series and more in college), and I'm looking for an introduction to statistical mechanics. My thermal physics class used Schroeder's "Thermal Physics" text, which touches slightly on stat-mech at the...

I am trying to prove the following: Let G be a graph Let |V(G)|=n=4k+1, for k an integer Let G be isomorphic to G complement Claim: Given degree sequence for G, d1>=d2>=...>=dn, prove d(i)+d(n-i+1)=n-1 for i=1,2,...,n Now, we know for any vertex v in G, d(v)=(n-1)-D(v), where D(V) is the...

Hey all, I want to try and pass a proficiency exam for my universities version of ode. Here (http://www.math.uiuc.edu/Bourbaki/Syllabi/syl285_edwards-penney.html). What book would you all recommend? (I prefer rigor, but also like ease of read if there is a good middle ground). I will only...

Hi, I am looking for a way to self study calculus. I am an eighth grader doing more than grade level stuff, so I am a COMPLETE beginner and need a book which starts with like the 'abc's' of calculus. I know geometry, Algebra 1 & 2 really well, but am not the best at Trig or Precalc, so if there...

Good evening everyone. I have a misconception regarding self inductance. I know that back emf induced in an inductor starts with the same value of the original voltage source and then keeps decreasing to reach zero. I also know how this is related to the derivative of current with respect to...

i would like to know the self absorption parameter of 3x3 inches NaI crystal. which is used in estim,ating the radionuclides

Hi, I'm really only in the forum to help my wife (as my questions will show). for 5 years after graduating from an ivy league as an electric engineer she took care of our kids instead of working, and is now going to do a masters in EE to "get back in the game". she's doing some prep work (5...

micromass submitted a new PF Insights post How to Self Study Geometry. Part I: Pure Geometry Continue reading the Original PF Insights Post.

Hey everybody, I am currently trying to find the best way to teach myself Calculus. I would like to be proficient in the field and I would like to study physics later at college. Has anybody had experience teaching themselves calculus and if so how did you do it. Also I am open to any...

micromass submitted a new PF Insights post How to Self Study Analysis. Part I: Intro Analysis Continue reading the Original PF Insights Post.

Hey everyone, I was wondering if there would be any problem with self teaching myself calculus using Khan Academy as my main resource. I looked at their course and it seems not to have many gaps in it compared to a regular Calculus course. I heard that Khan Academy is not a main resource to use...

Hi, I am working on a piezoelectric energy harvesting project. i was able to use my piezoelectric to charge up my AA NI MH battery 1300mAH from 0.93V to 1.201V. However, once i removed the battery from the battery holder, the cell voltage starts to drop without being connected to any load...

Hello I am self teaching myself AP Calculus BC and the exam is on May 5. I was wondering if there were any good online resources for me to use online and I have a textbook which is James Stewarts Calculus 5th Edition. Do you think this is possible to self teach myself Calculus BC in 3 months...

Note: I know this question has been asked before, but I wasn't allowed to ask my question on that thread 1. Homework Statement The gravitational self potential energy of a solid ball of mass density ρ and radius R is E. What is the gravitational self potential energy of a ball of mass density...

Last night I had a drink with my friend and short after he started talking about self charging keyboard. It is a wireless keyboard and it "could" be charged when you are typing ( mechanical to electrical ) or by cleaning it ( whipping off the keyboard with something and then electrons "would" be...

If current I passes through a circular loop of radius R,then what will be the self inductance of that loop? (calculating flux through the loop leads to calculating magnetic field at every point inside the loop which is an elliptic integral.)

Currently a junior in high school taking Pre-Calc. Next year I'll be taking Calc 1, Statistics, and MAYBE Calc 2 (if it's offered in the second semester). I'm wanting to learn more math than I currently am however. I love math, and I want to have a very strong background before I go into...

What would a recommended track be for someone that has had next to no exposure to physics? I was thinking of going this route after taking taking the single variable calculus course(paired with Calculus Made Easy by Thompson) on OpenCourseWare: Feynman Lectures Vol. 1 An Introduction to...

Hello everyone, I am currently a sophomore in high school (year 10 by the US system), with two years before I graduate to university. Last year, I began to learn calculus and physics on my own because they interested me. There is more to this story, but basically I seem to be at a crossroads now...

Hello everyone, I'm an undergraduate double majoring in physics and math. I have one year left after this one, then I plan to go to grad school for theoretical physics (not sure what field yet). My professor keeps suggesting the physics side of quantum computing as a good career route and I'm...

I've been trying to self study the section on de Rham cohomology in Guillemin and Pollack's book Differential Topology. The section is in a sense hands on: most of the results are presented as exercises scattered throughout the section, and some hints are given. I've hit a road block in a few of...

Homework Statement A self-interacting real scalar field ##\psi(x)## is described by the Lagrangian density ##\mathcal L = \mathcal L_o + \mathcal L_I = \frac{1}{2} (\partial_{\mu}\psi)(\partial^{\mu}\psi) − \frac{1}{2}m^2\psi^2 − \frac{g}{4!}\psi^4 ## where g is a real coupling constant, and...

interesting new paper on possible new research direction for LQG http://arxiv.org/abs/1511.07332 Towards self dual Loop Quantum Gravity Jibril Ben Achour (Submitted on 23 Nov 2015) In this PhD thesis, we introduced a new strategy to investigate the kinematical and physical predictions of self...

Hi guys, I had taken Calc 1, Calc 2, Calc 3, ODE and Linear Algebra in university, in the range of 5 to 7 years ago. I am about to go back to school, how should I re-teach myself calculus? Back then I used Stewart (Calc 1/2), Adams (Calc 3), and DiPrima/Boyce (ODE) for Calculus and ODEs. In...

Hey all,just coded this SOM based on the explination on the ai-junkie website, it seems to place all the input vectors in one single common coordinate, what am I doing wrong? I suspect its the training loop as that was the one part that the site was unclear about, Any help appreciated. static...

Hello, before I start off, I apologize for asking a question which I am sure has been asked hundreds of times before: but I felt there is just way too much information out there which is a little confusing, so I am here with the hope of getting some personalized suggestions. I am currently a...

So i want to create a container that is part of a system that already actively cools things that touch it. This variable cannot be changed. What i need is a container with some sort of valve that automatically opens up at a certain temperature. Thereby allow air to circulate and reduce the...

Hello. I am in first year college studying electronics engineering and computer science and i am 20 years old. I recently did the national mathematics exam to go to college and had 160 out of 200. Ironic, huh? I failed math at 10 grade and stopped doing any math for 3 years. By the time of...

Hello guys. I am a resident practicing Neurology in Atlanta,GA.But Physics has always fascinated me. I want to self study Physics with no time constraints.I want a feasible plan.I will outline what I have in my mind; please guide me through it appropriately. Firstly, I did A levels Physics and...

Hello everyone. 'm studying proof based calculus in my spare time. I have already taking Multivariable calculus, Diff. Equations and Linear Algebra. I'm using the textbook Apostol Calculus 1, as it was recommended by these forums, but I'm having great difficulty on understanding some of the...

Homework Statement Consider the space ##P_n = \text{Span}\{ e^{ik\theta};k=0,\pm 1, \dots , \pm n\}##, with the hermitian ##L^2##-inner product ##\langle f,g\rangle = \int_{-\pi}^\pi f(\theta) \overline{g(\theta)}d\theta##. Define operators ##A,B,C,D## as ##A = \frac{d}{d\theta}, \; \; B=...

Hi, I know that Chemistry doesn't really pertain to math or physics but I guessed this was the best website that would suit my question. Haha. I was wanting to self study general chemistry using a textbook. I do have the textbook, but was wondering what I should supplement it with. Also I was...

Hi I was wondering how long it would take to self study math using Khan Academy and supplement the website with a self teach book from Geometry through Calculus. I am a sophomore in high school and I am hoping to take the CLEP exams for Calculus and College Algebra after senior year. I was...

Ladies and Gentlemen of PhysicsForum, This is an awesome venue filled with great resources. I look forward to expanding my abilities within the realm of sciences by using the resources listed here and occasional consultation with the really generous posters who are far more experienced than I...

Setting: generic, mildly futuristic, nothing that would put you in awe. I rather want to discuss in general terms how get in near future SF correctly usage of self driving cars right with technologies that should realistically accompany them. And get right any social consequences. Thanks to...

I have been going through chapter 2 of Sakurai; the 1967 edition. Chapter 2 gets into the self energy of the electron, the concept of the bare mass of the electron, and vacuum fluctuations. Would these same concepts (self energy, bare mass, and vacuum fluctuations) apply to a scalar field (e g...