Introduction Definition and 860 Threads

I am looking forward to have thought oriented imaginative interaction. I have been using math stack exchange which even though provides very good answers does not value varied opinions and freedom of thought provoking questions. And it conflicts my view on mathematics that more analytic oriented...

Homework Statement construct ψ(x,t)^(2) where ψ(x,t) = 1/5(3ψ_0(x)e^(-iE_0t/ħ)+4ψ_1(x)e^(-iE_1t/ħ). I know we square it but we have to find E_0 and E_1 and put it in. Homework Equations E_n = (ħ^(2)k_n^(2))/2m = (n^(2)π^(2)ħ^(2))/2ma^(2) The Attempt at a Solution E_0 = 0 and E_(1) =...

How are you? I am largely ok but kind of stressed.

Hello those who are reading! I have just graduated with my undergraduate Bachelors degree in Civil Engineering with a 3.4 GPA. I currently work for a large civil construction company as a field engineer. I have written and published a Children's book about engineering called "Roxy the Fox and...

Hi, I'm Bal from the Philippines. Currently taking BS Applied Physics (computational physics) Research interests includes: Complex Systems, Chaos Theory, Population Dynamics, Image Processing, Simulations Other Interests: Critical and Cultural Theories(Humanities), Films Nice to meet you...

Hi! My name is Joan and I am new here. I study psychology so I am far from having an adequate understanding of physics or mathematics. I am just interested in cosmology and I often have many questions to ask around current theories and nobody to answer them. So I am here to learn and grow, nice...

Hello folks, I'm a student of electrical engineering and also a physics enthusiast. Have some topics I'm interested in and finally got enough nagging questions to create an account.

What is your opinion about "Introduction to Conformal Field Theory-With Applications to String Theory" by Blumenhagen, Plauschinn Springer (2009)? <Moderator's note: type setting edited>

I am a former senior flight surgeon at CCAFS and Kennedy Space Center. I have been privileged to speak with many fantastic engineers, scientists, and astronauts. Many times they have had to stop a discussion to explain to me items of interest, and I am always interested in learning something I...

Hello, physics forum, I'm Zaya Bell, science(including psychology) lover. Just liked working together with people, so will love to join in conversations.

Hi all. I am an undergraduate student studying physics at MIT. I'm hoping to answer as many questions as I can and getting my questions answered as well. I realized I enjoyed answering physics questions and am hoping to be of use to the members of this community. Regards

I am a retired man, who has always wanted to be a Physicist. I have no credentials, and am not qualified to comment on anything, but I enjoy having studied Physics some 43 years ago, and am only slightly behind what was current then. I have engaged in discussions on Quora, and in many other...

Hello, I am Sameer, currently undergoing the masters' program in Microsystems Engineering. I am a big fan of fabrication technology, and stumbled by this forum due to a few QnAs regarding sputter deposition. Hope to be here for a while. :) Cheers, Sameer.

I rarely do forum introductions but I'll do my best. My name's Tom, and I am a science hobbyist. I enjoy trying to find answers to some of the most difficult-to-answer questions/science fields that are still relatively immature (neuroscience for example). I am definitely not well-versed in the...

Does anyone have any good recommendations for some introductory books on nuclear fusion that I can read from my phone?

hi i am a mom with a kid whos into physics

Hi guys! I just made an account here after using this website for a good portion of high school physics. I'm currently taking physics 12 and is that it for the introduction? Thanks!

Wanted to be a cricketer till my 8th-grade teacher taught me Atom and Structure of atom. Passion arose that day led me to go to India's best engineering school-IIT Kgp. Got placed as a coder but my love for Physics is too much. Have started my own channel on Youtube -...

I work at the Kampala Institute of Technology in Kampala, Kampala, Uganda. We are doing serious work here, but often due to our lack in sound quality education we have many questions. Therefore I have sought a website such as this. Currently I am studying the Ward-Takahashi conjectures and off...

An introductory course in rigid body dynamics for mechanical engineers introduces kinematics, then kinetis and then work/energy. Can I ask for your opinions? Is this necessary? I can see the need to discuss work/energy to understand Hamilton's Principle. But is there any reason to labor...

Lightcone gauge is ##X^u=\tau=1/\sqrt{2}(X^0+X^{D-1})## (1) The mode expansions are: My book says 'it is possible to solve for one of the oscillators in terms of all the others' with this relation. What is a oscillator? Is this any of the ##X^{D}## coordinates, what exactly does ##n##...

Hi from the trenches. We the unwashed sometimes have physics questions and I feel that this is a good place to bring those queries. These questions that I have are going to be asked in rough draft form by someone who doesn't have the advanced education in engineering, science, and math to be...

I absolutely love bouncing around applied physics ideas, so I was quite exited to find an entire community site devoted to physics. As someone who has always had quite an interest in chemistry and physics I have spent a lot of time pouring through whatever learning material I can get my hands...

< Mentor Note -- thread moved to HH from the technical math forums, so no HH Template is shown >[/color] I couldn't find more informative title! I find difficulties with proofs. So my solution might be weird The problem says "Suppose that x is a fixed non-negative real number such that, for...

Hey everyone who is reading this! My name is Sen and I love physics. I don't like oversharing things so ask me if you are interested.

Hi, everyone! My name is Samar, from Egypt, I am a high school student. I am very curious about physics and other branches of science, I am sure this website will help me to learn more. It is pleasure to be one of the members.

I'm a 10th grade student in the United States and currently taking geometry which is a breeze, and if anyone else reading this is in the U.S. you know that 10th graders haven't reached calculus yet, not even physics. Since i know I'm going into quantum physics, i have thirst to learn calculus...

Hello I am a PhD student at the university of Sheffield in Electronics and Electrical Engineering department. I have a Masters in Physics and have spent 3.5 years working at the National Physical Laboratory. I am currently working on improving Pyrometry / Radiometry methods for industrial...

Greetings all! I'm Ross Erickson, 57, living in Las Vegas. I'm utterly fascinated with physics/cosmology, but am also utterly NOT scientifically educated. I am a layman who passionately wants to understand, in layman's terms, the physical universe, the laws that govern it, and how we as...

Hi All. My interests in physics are to do with light (born of microscope use, born of bryology, born of dog walking). Seems like I've stumbled across quite a little hotbed of expertise here: happy new year to you all!

Hello everyone, I'm currently an undergraduate who is majoring in math and minoring in physics. Since it's the start of the new year, I thought that joining a community, such as this, would be both helpful and fun. As I said, I'm primarily a math major, but physics has really grown on me lately...

Hi i am trying to understand Borh's scattering but i need article that will teach me step by step. Do you know any?

I'm interested in this subject. This is a graduate text and I believe the prereqs are mostly a math degree, which I somewhat have(B.S in Applied Math from a few years back). The thing is, I forgot details about things. For example, I know how to do an epsilon delta proof and can read one when...

Hello All, Just wanted to introduce myself. I'm new to the forums. I look forward to future discussions and hope I can tribute as well as learn in these discussions. Thanks to all who participate.

Specifically, for a high schooler with only basic physics and chemistry knowledge who is interested in the field

Hello, I'm a new member here, joining this wonderful community. Currently studying at a gymnasium, loving physics, mathematics, biology and chemistry and would like to dig into psychology for a little bit. I consider myself a calm person with lots of questions and science as a personal religion...

Hey there! I'm new to this forum, so I guess I'll just quickly introduce myself! My name is Torge, I'm a 14-year-old student in 9th grade of a german Gymnasium and I'm super interested in physics, mainly astrophysics and space engineering, which is the reason for why I'm here! I know, lots of...

I am Lance. Interested in physics. Looking forward to learning something from your guys.

Hello! What book should I use as an introduction to General Relativity? Something that includes an introduction of the math behind GR (tensors for example) would be much appreciated. Thank you!

I'm a new member from morocco. I am a 17 year old student and I love physics and I'd like to be very good at it and find what can help me and my classmates improve our skills and somethings I could share with them.

Andy Resnick submitted a new PF Insights post Introduction to Astrophotography Continue reading the Original PF Insights Post.

Greetings everyone, I recently finished my high-school and now I'm in college (I'm the Head of my schools Science Team), the reason I joined these forums was to get back my knowledge which was lost due to a recent traumatic experience. Ever since then I've been trying to learn again the things...

1) Plot given coordinates on layout supplied and label them accordingly. The scale on the layout is 1” = 20 ‘. 2) Using the given tope data, draw the level plan on the layout. The station coordinates and topping data are available in the excel file enclosed.

I am currently an undergraduate students at university and i am keen on learning some mathematics that is not taught in school and i have chosen number theory as my main topic . Recently I have picked number theory by Hardy but I found it is quite hard to understand sometimes as I have quite a...

Which book among Bernard Schutz , Stephani and d'Inverno is the best for an introductory level approach to GR ? I have read some tensor analysis from d'Inverno and have not found its treatment rigorous enough .

My names tim, and I am a first year physics student but I've had a love for the natural sciences since I was little. I am 21 years old, and some of my favorite things to do are reading and playing drums. Music has always been a close second to science for me. I hope to get to know some cool...

Hello everybody. First of all I want to make clear that this is not for me. I'll try to describe the kind of thing I want and the background that can be assumed. I am look for introductory physics and chemistry books. The background in physics and chemistry is zero. So the person this is for...

Hello, people of whichever gender identity you like! Skipping the easily veered verbose verbiage V verbalized in V for Vendetta in lieu of a common introduction, I prefer go by the initial V. The NV are also intials, but not my first or middle names. I'm a 19 year old male from the Midsouthern...

Hi all, I'd like to introduce myself. My name is Steven George, 22 years of age and from London, UK. I am a recent masters graduate of physics (July 2016), achieving a 1st class honors. Quickly after graduating, I found employment as an optical engineer for a company that specializes in laser...

Greetings, my name is Jamie. I'm a web developer in Maryland, working for a community college. I've been interested in science my entire life, and love learning new things. I graduated HS in 1995, and have managed to forget just about everything I learned about math, so it unfortunately limits...