Need advice Definition and 230 Threads

I am attempting to revive an old Raman spectrometer that had a few components stop working. I was left with a functioning probe head, laser system, and some optical components. Currently, I have purchased a new CCD spectrometer and a few optical components to replace those that were specific to...

I am a 2nd year EEE student. I have a great passion for physics, when I have free time I self study physics. My dream is to enter a physics master's program in the EU and then do Physics PhD in Europe. While many physics graduate programs do not exclude engineering students, they all require...

Hey everyone, I'm a recent bachelor's graduate who just landed a job at a startup. Although I have a strong interest in and motivation to grow in the field, my hands-on experience in mechanical engineering is pretty minimal. Somehow, I’ve been hired as a mid-level design engineer. (During the...

Hi all, I am a math undergraduate who studies math solely when I crave dopamine — when I feel a “kiddish,” soaring excitement. As a result, however, I am unable to focus for consistent, long periods of time and thus succeed at research. For this reason, would any of you happen to know if any...

I am currently in the beginning of my Junior year as a physics major. This semester I am taking Electromagnetic Theory A, Mathematical Physics A, Mathematical Physics B and a special topics course (which consists of some minicourses and seminars on a range of topics in theoretical and...

I live in the SF Bay Area. I graduated in 2019 with a B.S. in Engineering Physics from UC Berkeley. My college experience began with me failing to actually sign up for orientation, and then contracting tonsillitis which lasted my entire first semester. The combination of these two things...

Hi, I am a master's student from India (with a CGPA of 9.75/10.0, equivalent to 3.9/4.0) who will be graduating in July, and so I am looking for PhD positions (in Europe). I am torn between selecting hep-th and selecting hep-lat for my PhD research. I have hands on research experience in...

Hi. I have just written a draft of my personal statement. I am still working on it, but there are some concerns that I am not sure about. 1. Is my opening too tacky? 2. Do I talk too much about research experience? Maybe I should cut some details out. 3. On the contrary, I feel that I do not...

I would like to buy a Fundamentals of Fluid Mechanics for Engineer textbook. I have 2 options, they are: 1. https://www.amazon.com/dp/0133521702/?tag=pfamazon01-20 2. https://www.amazon.com/dp/0132788128/?tag=pfamazon01-20 Can someone please tell me which one of above Fluid Mechanics textbook...

Hello. I am currently in the second year of my master's program. My major is physics and my research area is high-dimensional entanglement in curved spacetime. During my studies, I developed a strong interest in quantum gravity (QG) and intend to pursue a Ph.D. in this field. I have a few...

My country has been hard hit by second wave of covid, so bad that the colleges that were conducting classes online had to be paused for two weeks. So since i have time, i am thinking of using it properly. I was wondering should i pursue how to proof in maths since i have linear algebra in my...

Hi , I 'd like to make a master degree but am not sure which department should I join to meet my goals that I will tell you about shortly , let's begin by my background first, Background : I have a bachelor in computer and communications engineering , during my study I had basic Electronics...

Hi all, I'm new to this but joined in the hope someone with more experience could provide some advice. In a personal project, I have a particular design dilemma where I am trying to pass a metal ball bearing (or any other spherical shaped solid) from a column of air into a column of water...

Summary: Vacuum pump help I need advice on what type of vacuum pump would create max negative pressure in a very small area ( a space no larger than your pinky finger I guess) ? Maybe some kinda high suction low cfm pump? I don't know enough about vacuum pumps to know which type to...

Hello, I am new to physicsforums and I am still a high school student so I would like to have advice on what books should be relevant on preparation for calculus and more math beyond. I have basic algebra and geometry foundation and I would like to learn more high school math and up. So my plan...

Hi everyone, hoping for some quick help. I’m trying to get the chemistry right for an aquaponics garden I’m building. I screwed up pretty bad the first time and just swapped out almost 100% of the water (there was a residual 2-3 gallons in the bottom of the growbed). Last night added in about...

Hello everyone, So, I want to make a fuel tank for a motorcycle with a glass window in it. I have seen a custom bike with a completely pyrex tank, so I know it's not impossible. My current questions are: Are there any important regulations for fuel tank construction which I will need to...

Hello, My name is TJ, and I'm currently in my second semester of undergraduate physics. I'm interested in pursuing a career in medical physics, and would like to know where I could get related experience even though I'm only an undergrad currently. I haven't started any research, but I was...

I have six months before I go back to school (after being out of school for over 5 years - ex engineering student). I'll be pursuing a BA in Mathematics and Philosophy - I will have to take either Abstract Algebra or Real Analysis 1 for my first quarter. Which class would you guys recommend I...

So I need some advice of someone professional and experienced. I’m 16 just about to sit my GCSEs soon and I’ve got a plan of what I want to do in the future. I reckon for my age I know quite a lot about high end things in Physics to do with quantum physics, special relativity, string theory...

I started my PhD in physics at a position associated with a project. In the project I'm the only one working in my field and the only one working full-time that knows how to program (a computer scientist is also working on the project but only 50% and has another supervisor in his field). I...

I have a major in mathematical physics and mathematics and I've started on graduate school january of the last year to get a master's degree in theoretical physics. My real interest is fundamental physics, specialy related to general relativity and quantum field theory. I've talked to a...

Grad school is *not* what I was hoping it would be. I wanted to study GR and was fortunate enough to get accepted in a program with an advisor who is a gravity theorist. I have the best fellowship awarded to grad students at my school. I passed all my prelims on my first try. My grades...

Homework Statement 1. V for C1 2. Let's Say "C" is Resistor then C1 = R1 etc. how to get Eq Resistance for this Circuit ?[/B]Homework Equations Faraday's Law, Kirchoff Law The Attempt at a Solution [/B] for no 1 :I just want to make sure. point A is transfering negative charge to C2 and...

Hi Guys, I've been learning electric field, and i want to ask about this question.EF net = EF1 + EF2 my EF1 = 9 x 109 * 4 x 10-8 / (0.6)2 = 1 x 103 (From Q1) EF2 = 9 x 109 * 2 x 10-8 / (0.3)2 = 2 x 103 (From Q2) then EFnet = (2+1) x 103 = 3 x 103 and what i get from key answer is 2.2 x 103...

Ok guys here's the deal, I was accepted to UC Santa Barbara, Santa Cruz, waitlisted at UCLA for Physics as a transfer A little background: I know a moderate deal of programming, have taken Assembly Language, OOP, Data and Discrete Structures. What I want to accomplish: Create a successful...

Hello. I need advice from someone knowledgeable in calc and calc-based physics. I moved to Canada a couple years ago and am trying to finish pre-med prerequisites and take the MCAT (I have a prior degree in another major that was not intro science/math-heavy). 6 years ago I took the 1st...

Hello I posted here because I needed some advice from people who are doing better or have experience. So, I am 21 and enrolled in a computer/electrical engineering and computer science program. My first semester wasn’t good. I only passed 1/3 subjects, I studied only two days before the exams...

So I am an employee of my university. Last semester I was given a stipend as an undergraduate researcher. For medical reasons I couldn't pursue that stipend this semester, but now have taken a job as a math tutor. Because I transitioned from one job to the other, I was informed that HR will...

A professor said: "Congratulations is in order then as this is no mean feat. If you email me your CV I will pass it around to the other academics." So I want to make sure that it is good to help me get internships and experience in the labs. Please, could you have a quick look and tell me what...

Hi guys, I wonder if I could hope to be enrolled in a top university (like MIT) for physics graduate course with GRE verbal 155? I have bachelor degree in physics and I am going to obtain master's degree in Spring. My GRE quant is 168, TOEFL 105, GPA 5/5, and I also have two publications in...

I am interested in pursuing a career change to electrical engineering with the specific goal of working in the space industry. I have served 18 years in the US Army in a field that has nothing to do with engineering or any other technically oriented field. I am committed to four more years of...

Hi! I'm 17 years and I'm from Europe, I'm going to college in september to the course electrical and computer engineering. And this is what I really love: The pure science of electricity, I love building alternators for generating electric power, I also build electric motors and so, I love...

Hi, My name is Rodrigo and I need to achieve a permanent seal for a vacuum chamber in the high vacuum range (I’ll be working between 1x10-4 and 1x10-torr). We were thinking of using a cold-weld sealing of an annealed copper tube to separate the chamber from the vacuum pump once the vacuum level...

Hello! I'm a junior in high school, and my school requires that every senior complete a "senior project" along with a research paper related to your project. Pretty much, you're supposed to do something that provides you with a learning experience or something that can help you grow as a person...

Hi all, first-time poster here excited to get my first telescope working. The issue: I see the silhouette of the secondary mirror and spider vanes in front of everything I focus on! I read through a similar post here a few years back, but the solution didn't work for me. Details: 6"...

Due to extenuating circumstances that I am not going into at this point (however, I may provide additional details if necessary), I am considering I have a MS, which I earned prior to dropping out from my PhD. My MS project was on a theoretical project involving topological defects. Thus far, I...

Hey everyone, I am posting because I need some help. I have a project idea that I really want to pursue but I am not well educated when it comes to physics and chemical related topics. I want to know what are the different ways to heat up metals, but also which metals would that procedure work...

I have three semesters left before I get my BSME. I went back to school a few years after high school, and a few years later (I had to start at the very bottom, seeing as I didn't even pass algebra in high school) I got accepted into an engineering school. I've done well enough up until now to...

Hello, I'm in a situation where I may have to leave my PhD program (math). Let's not go into the details because I'm not sure how anonymous I am on here. I'm just trying to figure out what my options are at the moment. I have an undergrad in applied math and an MS in physics (not ABET). I'm...

Hi. Currently a junior in high school. I love math, and am currently either deciding between going into math or engineering. Because of this, I'd like to take as much math as possible and really challenge myself before I go to college. I'm currently taking pre-calculus at my school, but next...

I am currently in my second year of a bachelor of science with a major in physics. The class I am taking is notorious for being hard and the professor is very hard to understand (understanding the material, not what she's saying). The class is all about oscillations and waves. The textbook is...

So I really have a few questions. First, is it wise to take the following classes in the same semester? Quantum Mechanics I - At the level of Griffiths' Intro to Quantum Mechanics, chapters 1-5ish Classical Dynamics - At the level of Thorton and Marion, Chapters 1-12, ends with coupled...

Hi all, quick question about a PLA circuit I'm doing for coursework. I'll upload a pic of the circuit to help explain. I've got the main stuff worked out but a little line in the coursework is making me think if I need to add a couple of extra connections on it. The circuit has 7 incrementing...

Hey guys, I would really, really like to go to graduate school for PhD in either Electrical Engineering or condensed matter/semiconductor physics. I will be graduating in December with two degrees from two different universities (yes, simultaneously), one a BS in Electrical engineering and the...

Hello everyone, I am a 4th year graduate student in nuclear engineering at a top university. I am about a year out from graduation and am beginning to think about what to do when I grow up. I have seen many friends (and read plenty of threads) about PhD's not being able to find a job after...

I am in a sort of catch 22. I need to work to get to school and work is making my grades drop hard. My parents are paying for tuition but we do not have much money. So my problem is I have to work to get to school, thankfully my job is a network tech on campus, and work is eating up time I need...

Hi, I'm 23 and I go to gateway community college in new haven ct. I have been taking my core credits and it is now time to pick a degree. My original intention was to get my accounting degree (fathers choice), but I despise it. My school has a few engineering programs and I'm 95% positive that I...

I found this baby bird in the parking lot with no trees above it. I have no idea how it got there. So I brought it inside and I don't know what to do. It keeps opening its mouth. What can I feed it? Is there any realistic chance this thing will survive? Thanks.

Hello everyone, I'll try to explain my situation as quickly as possible: I will be starting a B.Sc. in Physics at a German university in 2 weeks. I will be beginning in the second semester, so this semester I'll begin with "Electromagnetism" (Physics II), and next semester I'll be learning...