Introduction Definition and 860 Threads

Hi, I'm basically looking for a book that is very approachable and written for someone who knows very little about math but that goes through actual math, i.e. starts with set theory, then constructs the natural numbers, the integers, yada yada and strongly emphasizes how math is...

All- I am currently an undergrad about to embark on Physics I (Calculus Based). I took AP Physics in High School, but the teacher was awful and I never felt like I actually understood anything that I was "learning". The professor that I will have this upcoming fall is undoubtedly...

Hi, I was wondering what would be the best approach to geometry (euclidean, affine, projective) assuming you have a graduate background in linear algebra and abstract algebra? The high school curriculum in my country was pretty shallow in these subjects, none of it was covered in my...

I was thinking about sitting in a course next quarter that used this textbook, and no prerequisites are listed, so I was wondering what kind of things should I know to get through the text. The thing I am most worried about is my knowledge of QM. I only know the little QM I have studied...

ok. i am taking an "INTRODUCTION" physics class. I have never taken physics in my life before. the requirements for this class are high school algebra with a C or better (which i got) and the guy throws story problems at us and doesn't explain how to solve them or the formulas. is this...

Does anyone know where can I get a Topology for dummy? I'm learning Topology Spaces and Interior, Closure and boundary in the first two chapters of the textbook. I've had difficult time working on my homework assignments. Just wonder if some of you already had this course before willing to help...

Homework Statement Prove that if (ab)2 = a2b2 in a group G, then ab = ba.Homework Equations * For each element a in G, there is an element b in G (called the inverse of a) such that ab = ba = e (the identity). * For each element in G, there is a unique element b in G such that ab = ba = e. *...

This is not homework: I was wondering if there was a website that gave the solutions to A Comprehensive Introduction to Differential Geometry by Michael Spivak. I was learning this on my own. NOT homework.

I've come across two online sources I really like. For some introductory comments and insight into relativity try: http://einstein.relativitybook.com/Einstein_gravity.html And for a really elementary first exposure to relativity consider...

Hey all, So I'm beginning my personal statement with an explanation as to why I received such bad marks in my first couple years, as well as why I chose the field I will pursue. Tell me if these first few lines is interesting or falls flat and tacky. Uncertainty can be terrifying. Where...

Hello all, I am beginning a new research project involving graphene. Although I have be actively doing a literature search on graphene, I was wondering if somebody would be will to suggest a good textbook that covers the basic of graphene Thanks in advance -Ed

hello all It's probably already been noted but... have people seen the paper hep/th-0810.3328? "A simple introduction to particle physics"? It looks like a very nice introduction to the maths behind the development of particle physics for advanced undegraduates and experimental...

Ever heard the Dropkick Murphys, The Pogues, Flogging Molly, etc? I love this stuff.

Hello there I have to write an interdisciplinary project at school, in mathematics and physics, where I have to go beyond what is covered in the syllabus for mathematics. I have chosen the subject of chaos theory. Can you recommend any good introductions, on this subject? And would I need...

Hey guys, I'm trying to self-study LA this year. For anyone who has used Hoffman and Kunze's LA text, would you recommend it as an introduction to LA? Thanks.

I am just an undergraduate student of physics and I would like to know what would be the best (most pedagogical) introduction to Hawking Radiation.

Page 87 of "Introduction to Set Theory" Sorry, if this post doesn't fit into this forum, but i had no other choice. I got a electronic version of "Introduction to Set Theory" by "Karel Hrbacek" and "Thomas Jech". It is a magnificent book which opens up every window of understandings of...

Hi, I'm learning special relativity with the book Introduction to Special Relativity by R. Resnick, but unfortunately he doesn't provide answers to the questions (not problems). So I would like to aks you if you could correct some of my answers. Homework Statement 1. Can a particle move...

hello, in my calculus introduction book, it is written: Let a rational function: f(x) = \frac{{p(x)}}{{q(x)}} and a, a real number If q(a) equals 0, but not p(a), then {\lim }\limits_{x \to a} f(x) does not exist. however, while doing exercises on the internet, i found that: {\lim...

Hey guys here, I am going to university soon. Introduction to Multivariable is one of the courses. Before going to university, I hope to do some self-study as I am relatively weak in math. Hope that with an extra prepared Math module I can cope well during my university's life. May you...

Hello. Right now: we're learning about derivatives. And the questions reads: Determine the coordinates of two points of tangency to the curve y=-2x^2, given that the corresponding tangent lines intersect at (2,8). What I know: I know that the derivative of the function is y'= -4x I know...

Homework Statement 92x^3y divided by -28xy^3 Homework Equations The Attempt at a Solution I got 23x^2 divided by -7y^2 book inverted the negative. What did I do wrong?

I'm following An introduction to the Standard Model of Particle Physics. Are there any solutions to the problems? Is there a better book to follow? Would appreciate, tx. JP

A complete set of lecture notes for an upper-division computational physics course. Topics covered include scientific programming in C, the numerical solution of ordinary and partial differential equations, particle-in-cell codes, and Montecarlo methods...

A complete set of lecture notes for a graduate plasma physics course. Topics covered include particle orbit theory, fluid theory, wave theory, MHD theory, and kinetic theory. by: Richard Fitzpatrick (University of Texas)

Homework Statement a) How many bit strings are there of length 8? b) How many bit strings are there of length 8 which begins with 2 1's? Homework Equations Product Rule The Attempt at a Solution a) Since a bit string is either 0 or 1 there are two possibilities for each one...

Homework Statement 1. A kettle holding 1 lt. of water is boiling. Assuming water is evaporating at a constant evaporation rate of 1g/min, determine how long it will take for the kettle to dry out. 2. Another kettle holding 1 lt. of water and 20g of salt is also boiling. Again water...

Hello, I have read in a susy introduction paper that if we call Q the charge which links fermions and bosons, then we have the following anticommutation relation : {Q_a, Q_b} = 2 sigma_ab P where P is 4-momentum. So, is this relation only due to Coleman-Mandula theorem which force the...

What is a good book that introduces tensor notion clearly?

This question is from Arthur Mattuck's "Introduction to Analysis", chapter 5, problem 5-7. Homework Statement Define a sequence recursively by a_{n+1}=\sqrt{2a_{n}}, a_{0}>0. (a) Prove that for any choice of a_{0}>0, the sequence is monotone and bounded. Homework Equations None...

Homework Statement Divers in Acapulco, Mexico, leap from a point 36 m above the sea. What is their velocity when they enter the water? Homework Equations V^2=u^2+2as, probably wrong. The Attempt at a Solution s=36, u= 0, Find Final Velocity, a= -9.8 , I get some ridiculous...

Could someone give me a relatively basic introduction to what win32 is or link me to a site that does the same? Thanks.

Here is a nice introduction and overview of superalloys. http://www.msm.cam.ac.uk/phase-trans/2003/Superalloys/superalloys.html Nickel Based Superalloys H. K. D. H. Bhadeshia Lots of other pages at the bottom See also - http://www.msm.cam.ac.uk/phase-trans/2003/nickel.html

Look am very interested by computer programming and now am learning The C++ language that's why i would like to ask anybody who can teach me java, just thank you

Hi, hope this is the right area for this. I'm currently doing preliminary research for my computer science dissertation. I'm thinking of doing something in CFD...either representing the effects of wind on fur, or simulating a river flowing. Most CFD 'googles' have resulted in me finding...

If you want an accessible overview of quantum cosmology try this TOC: https://www.physicsforums.com/blogs/hellfire-3727/category/interesting.html Hellfire covers different attempts made since the 1960s, and by comparing them (and showing historical development) makes the whole subject...

Hi everybody, I'm a freshman and i want to study signals and systems. so I'm seeking for a good introductory book. I've heard about the book "Signals and Systems" written by Oppenheim and Wilsky. So is Oppenheim's book suitable for a beginner? If you know a better introductory book...

http://sites.google.com/site/winitzki/" a draft of an introductory textbook on quantum field theory in curved spacetime - free quantum fields in expanding universe, Unruh effect, Hawking radiation, also Casimir effect and some basic stuff on path integrals and effective action. The book is not...

Homework Statement you are in a land inhabinated by people who either always tell the truth or always tell falsehoods. You come to a fork in the road and you need to know which fork leads to the capital. There is a local resident there, but he has time only to reply to one yes-or-no...

we have two inertial frames, S and S' where S' is moving with speed v along the x axis. here are a few questions about these frames: 1. if two events occur at the same point in some inertial frame S, prove that their temporal order is the same in all inertial frames, and that the least time...

I just read a news on physicsweb: http://physicsweb.org/articles/news/11/3/9" This is called a "quantum non-demolition (QND) measurement on single photons". I would like to know a little bit more about QNDs. Why they are called so. What is special about these QND experiments, or maybe...

Are there any good online introductions to topology?

Note: This article will assume the reader is familiar with the concepts of statics and soil mechanics (mainly the topics of shear strength in soils and effective pressure). 1.1 Introduction Retaining Walls A wall designed with the purpose of keeping a level difference of the soil on its...

I have several books on linear algebra but they all bore me to death. What I find annoying is that they all focus on giving tons of definitions on the opening chapters only to elaborate on the relevance of those definitions later. What I am looking for is the opposite; a text that gives the...

This is a very nice summary of Materials and their Properties and Characteristics http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/cc_mat_index.htm

Hey, It seems as though there are many books on electromagnetism out there, but most that I look at have mixed reviews. Before spending money on a book, would you happen to have any reccomendations on a solid introductory textbook on electromagnetics? Thanks

Homework Statement Prove that: 1^3 + 2^3 + ... + n^3 = (1 + 2 + ... + n)^2 for all n where n is a natural number Homework Equations Proof by induction: a) p(1) is true b) assume p(k) is true then prove p(k+1) for it The Attempt at a Solution I gave this a try for a while but...

what do you think about the book: Exploring Black Holes: Introduction to General Relativity by Wheeler? Do you think i should buy it? Thanks.

If we have Einstein-Hilbert Lagrangian so: \mathcal L = (-g)^{1/2}R for R Ricci scalar (¿?) then my question perhaps mentioned before is if we can split the metric into: g_{ab}= Ndt^{2}+g_{ij} dx^{i} dx^{j} N=N(t) 'lapse function' then i would like to know if somehow you can split...