Suggestions Definition and 484 Threads

Hi...I'm basically from a low-profile college..and there are not quite many sources to learn in my college even the faculty; I've found PF too good(especially the mentors) and I'm ever so will be grateful to this site.. OK., so I've just entered in my 2nd semester of Electronics and...

what do you think is the best book in maths to start with for a person aspiring experimental nuclear and particle physics .actually i am good in maths and love it so please recommend some thing hard but, well,suited for an under graduate student

#include <stdio.h> #include <stdlib.h> #define N 250000000 int main() { int i; double *x; if(!(x = malloc(N * sizeof(double)) )) printf("memory error \n"); free(x); } When N is larger than 2.5*10^8, it appears memory error. I have 8GB memory. The...

I've got four nvidia 580s runnIng in quad SLI, but they are just not cutting it for me anymore speed wise. Any suggestions? Money is not an issue.

Hey. I will be in approx. 1 year from now do a big mathematics project, that is going to be coupled with physics. I have already covered all the obvious choices for this project, such as harmonic motion and dampened harmonic motion with the derivation of the general solutions to the differential...

Hi, I'm looking for suggestions on what are the best areas of theoretical physics for independent/amateur research? I want to do some independent study with a view to research, but my problem is that I can get interested in more-or-less anything and am easily sidetracked. So I want to try to...

Sorry to ask all of you but i have i wild idea about the creation of the universe and I’m not shore where to send it... can you please give me an idea? I'm not actual a physicist but the idea sounds pretty good. Thanks

Friction with the air is often neglected, but when traveling at Mach 18 it becomes a huge factor. To cope with this, NASA engineers have ingeniously developed sand-based thermal tiles that are designed to withstand temperatures that can reach up to 2600 degrees Fahrenheit. There are 3 types of...

Currently, I have failed multivariable calculus and will probably fail it again. Math is normally not a problem for me. One of my faults is that I always studied for the semester doing only the necessary things, then forget about them, causing me to forget basics for my current class. Studying...

As the title says I'm looking for reading suggestions for complex analysis. I'm a novice at the subject and looking to do some self study to bring myself up to a graduate level of understanding. I've been looking at some reviews on Amazon on such books, but I think I would rather hear your...

Hi, I am currently studying for a one year postgrad MSc in Theoretical Physics. In my undergraduate physics degree, my dissertation was on general relativity, so I got a taste of differential geometry and manifolds which I really enjoyed. At the moment I'm currently attending lectures...

Hey there! I'm a second year physics grad student and I've been asked to give a 30 minute presentation to my department on something about cosmology or a cosmology-like topic. I've been hunting the archive for weeks and I can't find anything too interesting (that I can understand) to talk...

Hello, I am currently trying to come up with an idea for a project for my advanced physics lab. I have thought to do supercooling/heating, superfluids, and perhaps a rail gun. I have access to a very nice high-speed camera, so I would hope to find an experiment that will utilize it (the rail...

Hi, I am taking my advanced electrodynamics undergraduate course, and I am following Electromagnetic Theory of Reitz-Milford. The thing is that I want to find books for electrodynamics, that don't take me out of Reitz context but that they are similar. I just want to have more references without...

Any good theoretical physics books?

So I've been exposed to C a little with Arduinos and I've been wanting to learn some C++ for a while. Just wondering if anyone has any suggestions on what software I should start with. Right now I kinda need my computer for school so I'd prefer to keep it neat and not install a bunch of tiny...

Hello folks :smile: My girlfriend and I are leaving on September 14 for a 6-week humanitarian effort in Ghana, Africa. We organized the trip through a group called http://villagevolunteers.org/" . The DSLR is amazing and we will definitely be bringing it with us. What we are looking for, is...

I would like to ask how to change the frequency of the ac supply (frequency = 50Hz) to a ac with a very high frequency. Does anyone suggest any materials or websites for me to reference? Thanks.

hi everyone, i am doing BS Physics. now its time to choose a project in specific field and i am confused that which field should i choose and which one is better experimental or theoretical? as i found this forum very helpful so hopping that everyone gives me sincere suggestion and help me out...

Hello, Newbie here. I am an international student. I would like to ask you about book suggestions. Specifically, I would like to have a list of books that are MUST read before going to do an Undergrad degree. The subjects that interest me are the following: 1) Mathematics; 2) Physics; 3)...

I need to start a physics project over summer, something of an A-Level standard or higher. I want to do something practical like an experiment and then write about 5000 words on it. My budget is between £100 and £200 (≈$200 to $400) and I must have the entire project finished by March 2012...

any suggestions for physics books ?? I am a high school student studying physics,I am very interested in physics. Since my teacher is teaching very very slowly, I have finished most of the books in the syllabus. I want to explore more on physics. Could you show me the way? Is there any...

(Drawing of the setup attached) Background: We conduct electrical tests in our lab on electrical components (circuit breakers, switchgears,etc). In the lab we have a short-circuit Generator that generates the electricity for the tests. The generator is powered by an asynchronous motor...

Hello all, I am currently in University and I am retaking a course that I dropped last year due to the fact that there was no textbook and the time I spent in the course was a frantic scramble for reliable information and attempting to understand what the professor was teaching. I have looked...

Hi all, As the title mentioned, bookdepository.co.uk is having a 10% discount: http://www.bookdepository.co.uk/spring?utm_source=NL-Header&utm_medium=email-Newsletter&utm_term=An-extra-10-off-everything&utm_content=Main-promo&utm_campaign=May10offCoupon-2011 I would like to buy some...

Homework Statement fn(x) = x^-n is the given formula. for parameter values n>0 on the domain x>0. I am asked to substitute 4 different values of the parameter n, when n>1 and 0<n<1 and then explain how n changes the shape of the graph. Homework Equations The Attempt at a Solution I...

hello any suggestion on my research this incoming semester for a tropical country like Philippines?

I am making a list of all the schools I am applying to for spring 2012 tomorrow. So far, I have Colorado School of Mines, UC-Boulder, UT-Austin, Washington-Seattle. I am looking to live out west, preferably near/in a progressive city (I'm a vegan and want grocery store/farmers market...

I'm not sure if this is the right place to post this, but at this point I'm a little bit desperate, so hopefully I can get some suggestions here... I'm working on a project in which I'm building a Tesla coil. We're using a 15kV transformer, about 15nF capacitance (six 10 nF (16 kV rated)...

I'm currently in high school and I know it's a little early to decide on major/minors, but I really enjoy physics and math. The university I will be attending only offers a minor in physics, but it offers majors in theoretical, applied, and general mathematics and I was wondering which would be...

I'm just finishing my first year at community college, and I'll be there again in the fall and winter. After cc, I'll be transferring to a university to major in astrophysics. I'm taking physics and calculus at my cc, so I want some supplementary reading for the summer and after. Any good books...

Hey guys, I feel too lazy to peruse the forums at this hour, just finished finals week (whew). If anyone has any suggestions, books, video lectures, or otherwise, on how to somewhat sufficiently teach myself calculus BEFORE I take calc classes, please let me know. So basically starting with...

Hey all, I am finishing the second year of the undergraduate physics program at my school. This involves taking a course which teaches us a lot of upper level (or so I am told) math in the span of one semester at a very fast pace. The class is very difficult, but it has sort of given me a...

Hola everyone! So, I'm in High School...and I was wondering if you guys have any interesting reading suggestions (pertaining to math, of course :P). Please don't recommend anything too crazy that could be over my ignorant, uninformed, teenage brain. Also, do you guys have any tips for...

Hi I would first like to apologize in case I post this thread under the wrong sub-forum . I will be starting my undergraduate course in a few months time so I thought of keeping myself upto date on astrophysics (My main subject of interest) but I find myself to be increasingly fascinated by the...

Hi a group of us are developing a new system, but are unsure of what material would be best to fulfill a critical role. The system requires steam to be stored at pressures of upto 20 ATM, and at a temperature initally of 2300 celsius. What materials would be best suited for this storage...

I'm taking a shot in the dark, off the subject. My son wants to be an astrophysicist and thought I would start here. He really would love to talk to one, he has a few questions. Big thanks for your help. Traci Dixon

I've been struggling and wasting mask materials trying to etch SiO2 wafers. The orientation of the etch is not a huge issue. I need to perform a detailed anisotropic etch on my feature side and etch the bulk depth from the other side. For my bulk etch I have tried multiple masks in BOE...

Hi everybody, I'm a first year Ph.D student in mathematics and I've been asked to give an hour long talk for the university maths society. Speakers have the choice to talk about just about anything maths related, however the focus of most talks is usually the discussion of a classic maths...

Also, is there something to look for in particular when you're buying binoculars for stargazing?

Hi I have to give a 10 minute presentation for a course. The topic is 'Spatial Coherence' and should, ideally, be related to my research. My research field is, in broad terms, surface nanotechnology. However, in specifics I use scanning probe microscopy, which is non-optical or electron wave...

I was wondering if anyone could suggest any good books about physics. Any suggestions would be appreciated. Thank you in advance. Perhaps add a brief summury of the book.

i find that chebyshev polynomials are quite useful in numerical computations is there any good references?

I'd like to start our middle child (age 11) learning some programming. It's been a long time since I've learned a new language, so I was wondering if anyone had any suggestions, including some texts to get for him (we restrict his online access, so I want his help to come from a book, not...

To start off, i don't come from any type of scientific background, but I've recently developed an interest in aerodynamics as a "hobby." I am, however, the type of person who takes a hobby as far as i can possibly take it (I'm a pilot, I have played guitar/bass/keyboards in various bands...

I have to write at 15 page long research paper on an engineering disaster. So far i have thought about doing the boston molasses disaster, anyone of a hundred bridge collapses, or plane crashes. Can anyone give some good suggestions for an engineering disaster? Something that is really well...

Hello, First of all I love the site! I really love exploring all the different subforums and learning a lot about all the different areas of physics and the rest of science. Anyways, I am a junior in high school, and I took a Pre-AP Physics class in my freshman year and liked it but didn't...

Any one have any ideas or suggestions for beginner model rockets? I eventually want to make my own.

I have a decent GPA (3.6) but have taken no classes in Chemistry and advanced Computer Science (can only code python!). The Physics GRE is incredibly intimidating to me and many topics that it covers are not offered at the liberal arts college I attended. I predict a receiving a poor score and...

First of all I am new to these forums and I thought I would introduce my self. My name is Mitchell and I am a first year engineering student at the University of Michigan. Now I've always been interested in Nuclear Engineering. My dad really got my started and it just seems a lot more...