Need advice Definition and 238 Threads

Hi guys, I need a bit of help in making a decision on a particular material. Basically, i am doing a project where I will be heating water in a bottle. I have an idea of using a dynamo to provide the energy to heat the water. In order to be able to do this, I need some advice on a material...

I'm a 1st year graduate student, and until yesterday I was absolutely certain I wanted to do theoretical physics. After talking to the 1st year graduate advisor, I am not not so sure. While he didn't say anything I didn't know (3 postdocs minimum, few academic jobs, less industry jobs than...

I need to use the equation ( thermal resistance for convection) R= 1/hA but I am not given an Area, I am only given 4 meters as a thickness. how do I find A to use for the equation to solve for R. Homework Equations The Attempt at a Solution

Hi everyone, Im in my third year of studying chemical engineering. Its been ALoT of work so far, but its always been manageable and I've been able pass every class so far and I have a pretty good gpa (3.5). However, this current term is really killing me. I dedicate every waking moment...

Around six years ago my friend attempted to break into someone's house. He broke down the front door and was stopped before he was able to steal anything. It was a non-violent, non-drug related crime. He did his time and is almost done with 5 years of probation with no mess-ups. Soon...

I am a 19 year old First year university student. Ok well this is my story I always had a gift for mathematics, without doing homework or learning it by book i would still get an A+ in all my math classes, I always asked for harder problems and more advanced material when i was in...

Hello, everyone! I have a question here and I am really looking forward to hear your advices. I am now applying for phd programs, and I am aiming at the top universities in the US. However, based on my performance, I think my chance going to the, say, top 6 or top 10 is very small. (personally...

Hello, I am working on an innovation that will be used in automobiles and I require a small graphics display and I am happy to consider both b/w and colour. Size is about 128x128 or 128x64. Back lit (LCD) or self illuminating such as LED and it must be viewable over all light conditions from...

I am trying to create a kind of rudimentary 3d positioning system, sort of like a CNC minus the machining aspect. I am just trying to get my very basic design down and I am stuck at how i should get the position data, my first thought was to use an accelerometer placed at the tip of the actuator...

Hi, I am very interested in Astronomy and want to take it to a Masters level or further. I have been researching about the requirements and realize anyone going into Astronomy must have a core education on Physics. I read most people major in Physics and then go into Astronomy at a Masters or...

Hello, I need help, for the past week everytime I go to sleep I am sweating so bad that I have to change my clothes...I have a fan in my room and no heat on. I am sweating from the back of my neck, my breats and my arms legs etc.. then when I get up always at approx 2am, I have a headach and...

Hello everyone! I am applying for a volunteer position at Oregon State University as an undergraduate assistant in Microbiology research. The head of the research department asked me to bring a resume if I have one handy, which I do, but not for this type of situation. I am wondering if there...

I am currently a sophomore physics student taking a pretty rough course load and am struggling quite more than was expected. I took computer programming as a class "for fun" but it is totally blowing me away. I think I currently have a C in the class and it does not appear to be getting...

My physics professor told me something alarming today. There were 500 physics ph.d jobs lost in today's economy. I'm worried that physics may not be important anymore and I may have to change my physics topic to Astrophysicist. I wanted to minor in math, but I've been told its pointless in...

I'm a triple major Physics, Astrophysics, and Mathematics. Math is my true love, but I also like Physics and generally having an area of study to which I can apply my knowledge of Mathematics. The reason the Astrophysics is there is because at my college it takes about 4 classes in addition to...

So, a friend and I are writing the GRE physics in two months. We are both studying in Sweden where almost NOBODY ever writes the GRE, and none of my fellow students know what it is. There is therefore a great shortage of advice, experience, tips, standardized courses and material. Are...

I was wondering what are some good institutions in the USA (preferably in Connecticut) that give reliable genealogical DNA tests. I am interested in seeing what my heritage is composed of. I'd also like to see if I have Ashkenazic heritage.

I am currently in Calculus 2 for engineers and my Uni is attempting a new program. This is a program by which a student can exempt themself from taking the final exam, replacing it with a project from within their department so long as it makes use of Calculus topics. I have completed the...

Hello, I do not know what I am looking for other than a relay, but what I need is a way to have this puff switch http://www.mansionathletics.com/puff-switch-physical-education-recreation-children-special-needs-ability-switches-action-37294.html?channelid=Yahoo%20Shopping turn on a...

To determine whether schools are increasing the amount of students meeting or exceeding standards, I obtained a MEAP database reporting the amount of students that scored in the met or exceed standards range during years 2005-2009, for grades 3-5. I then graphed the data for using numbers...

So I am finally getting out in the wilderness on vacation and I thought it would be a great idea to do some astrophotography. I thought of getting a simple enough Nextstar 4SE, but I have a bigger budget and maybe I can get a bigger diameter and aperture. So my question is, which telescope...

I do not know if works the same everywhere, but as a freshman in university I am really new to this. My professor gives us assignments, even-numbered assignments, on our homework. Now being the youngest person in my class and not knowing anyone is a disadvantage. Because those assignments my...

Homework Statement I got a stats problem which I don't know how to approach. It concerns a method of predicting election outcomes based solely on the length of incumbency of an existing Government. For Australian National or State governments elected the lengths of holding office are...

I graduated from a top 10 liberal arts school in 2007 with a degree in math. After school, I worked for a year and change as a computer programmer and I'm now employed as an actuary. Getting an advanced degree is an idea I've entertained for a while, and now I want to try and achieve that...

Hello. Some background on me: Just graduated with physics major and am going to graduate school this fall. However, due to additional focus on philosophy I couldn't focus on properly learning either math or physics. I am relatively capable, however, I have small knowledge with many gaps to...

Hi. I recently graduated with a B.A. in Political Science. I've been accepted into a pretty decent law school and could head my life in that very comfortable and secure direction. However I've always had a passion for physics, I spend so much of my free time reading about it, watching online...

Hello I need some advice on how to study more I'm in the ninth grade and I don't study a lot, I don't actually study I just do my home work, I usually end up cramming before exams and getting average marks (90s in math and physics and the rest is in th 70s and 80s). I want to get used to studyin...

When I did my undergraduate thesis, my project was a small part of a larger project being done by an MSc. student at the time. We obviously both had the same supervisor. This student completed his MSc. degree a few months ago, and I have since learned from him that he and his supervisor have...

I am from India, wanted to pursue physics when was in high school, still want it, I got admission into a top technical university (IIT Delhi) and took up a 4 year B.Tech in engineering physics because i just 'thought' that the word physics would mean i would be studying physics, the science...

Hi all I am new here. I need advice about my grad school application. I need 3 LoRs and I am not sure whether I should include my current (master thesis) advisor in it. The reason is he really hates me. For some reasons he wants me to stay at his lab and do my PhD there instead of going...

A brief introduction: I'm a senior, international, applying to universities in the US (and Cambridge). So far, I've applied to Cambridge, Caltech and University of Chicago (the last 2 were EA). But these are all, I would think, nearly impossible for me to get into - I have the scores (meaning...

I am looking for some advice on how to improve my reading and understanding of technical books. Right now I am in a networking class, and I am very motivated, love the class, but have a hard time reading and understanding the book. I know most of my problems come from being distracted, and I am...

I'm currently in first year calculus, and I'm having trouble remembering all my trig for use in derivatives. I have some stuff memorized, obviously soh cah toa, and the derivatives of the six trig functions. i.e. derivatives of sinx = cosx cosx = -sinx tan = sec^2(x) etc... but...

Hi, this semester in uni I took a very overwhelming load of technical/problem solving courses. I ended up dropping two courses and now I have a pretty light load. The problem is my bad habits lead me to procrastinate heavily on my studies for the first month of the semester. Luckily, I feel the...

Hi all, I will get my B.Sc. in Electrical and Computer Engineering in Jan 2010, I want to do graduate study in either Theoretical Physics or Mathematics. My GPA is 3.34 With Honor, I have Most Bs in Mathematics, but low physics grades. Am I allowed to do so, If yes what to do to...

Top university in my country (Taiwan) Undergrad GPA: 3.3/3.1 overall/major Grad (Master) GPA: 3.5 sGRE: 970 GRE: 580/800/4 v/q/w TOEFL: 112 Publication: 3rd out of 50+ authors in PRL I would like to pursue a PhD in physics, but to do that I'd need to get admitted somewhere first... I...

VERY low gpa (around 2.8) GRE V590/Q740 MATH major no research experience one semester left I am a student at university of illinois at urbana-champaign. I know it is not easy to get admission for grad. school, but I really want. Actually, my major was CS and my CS gpa was under 2.0...

I am currently a student taking a break from school. Last year I had a major life altering experience and after which i decided to take a break from my studies till my mind was settled. When I started my undergraduate track I went to a tech school in NY and had decided on studying software...

I just graduated with a MSc degree (4-year program) in Applied Chemistry from University of Karachi, Pakistan. I am interested in pursuing a masters degree in Chemical Engineering. I have 63% in my undergrad degree, the top most student has 71%. I rank about 20th among 60 students.And I have...

Hi all, I am just joined, so I am new here. I have a bachelor in Physics, and master in Telecommunication management. I have few years working in ICT projects doing varied stuff start from programming and network design. However, I did not feel satisfied with this kind of work. Since I can't...

Hello guyz,i'm facing this problem in my statics class...and thought posting it here so i can get some help :) here it goes http://img372.imageshack.us/img372/6241/58856343aw8.jpg Ok this is what i did and I'm kinda stuck... just bare with me...

Hello everyone! Here is a short (?) introduction of myself, by myself : https://www.physicsforums.com/showthread.php?p=1940774#post1940774 So I'm currently doing a Major in physics, I'm having a hard time right now but hopefully I will be successful. Here are my questions : Will a minor...

Hello guys! Well, where to start? First I want to say that I'm really happy to find a forum like this, I've spend like 2 hours reading the career and academic guidance section, and I realized that I have a lot of questions myself. Before I start I apologize for my future grammatical mistakes...

I plan to study particle physics especially about the quantum field theory but i don't know how to start with. I have studied mechanics,modern physics,electromagnetism using Serway Physics for Sciencetist and Engineers.I have also studied Waves and Vibrations using H.J Paind Book and also...

i'm about to enter my 3rd year, and i have been planning for a physics major during my entire college career, until recently, where i have decided to pursue pure math instead. i may decide to switch back to physics, or pursue mathematical physics, however i plan to take for sure this...

Well, I plan on leaving my current job as an electromechanical engineer on a venture capital project and starting grad school this fall to eventually get my PhD. However, I'm having a lot of trouble leaving on good terms. I'm giving them written notice in person with my last date of employment...

Homework Statement Hey guys. I'm in the middle of this crazy exercise and I got stuck in this ugly integral in the bottom of the page, any ideas on how to solve it? Homework Equations The Attempt at a Solution

I will be a senior next year, graduating with a BS in Math. I want to go to graduate school. Unfortunately, my past few semesters were not the best. I wasn't the most motivated student. Grades in math courses, in order, were: Calc Sequence: A's Diff Eq: A Proofs (required): A Linear...

I haven't touched any math since 2000. Should I take calculus now or go back to pre cal to refresh my memory? I wasn't bad in math in high school or first year of college (1999) at all. Would it be fine if I can review by myself? any suggestion book to review? Thanks.

I need advice with my "Discrete Structures" class Hi everyone, I'm a sophomore undergraduate student at the Polytechnic University Of Puerto Rico, currently majoring in "Computer Engineering", for the record this university works by trimesters. I'm currently getting a bit frustrated with my...