Experience Definition and 451 Threads

Depending on how you break things down, it can be surprising how many seemingly highly unlikely events we can expect to occur in life. I became interested in this subject and once even tried to calculate the odds of a few amazing coincidences I've had in my own life. Have you had any...

Hello physics forums. I've been reading old threads for hours but would love to get input on my specific situation. I graduated from a state school in May 2023 with a BA in physics and a 3.3 GPA. I was a good student until college, where I suffered from debilitating mental health issues and was...

Greetings, I consider myself a teacher of science instead of a science teacher. I have experience teaching across many subject areas of science. This has enabled me to make connections across all of my differing content areas and share that with my students.

Today someone wanted me to listen to an 11-year old kid “playing the blues”. I asserted that it makes no sense. I’m of the opinion that you cannot play blues before you’ve had your heart broken and perhaps flirted with love and death. Be it a failed relationship or an alkohol or drug addiction...

Reading Einstein Relativity. The trains experiences lightening strikes differently to the embankment. So the two events are experienced differently from the two reference points because they have different distances to the events. Light from the events taking different times to reach each...

Hi all. I've been approached by SciPod to contribute a short video on my work. Has anyone here done this? Are they reputable? Are they worth the effort? Here's a link: https://www.scipod.global/

Hello guys, I've been searching job to my father. Because the economical situation of the country he wants to find a foreign job. -He has 20+ years working as an director of vibration analysis and diagnosis company who himself founded. -He has 20+ years working as mechanical engineer teacher...

Hello, and thanks so much in advance for any advice. I’m currently a third year physics undergraduate student who’s looking for what programs I should apply to for my PhD. I’m not sure I should bother applying for anything top 20 but wanted to get a second opinion on my applications...

Hi my name is Idan. I plan to study for a physics Bachelor at Israel, my homeland. although is way too early I'd like to proceed towards higher education as well, particularly in the US. The problem is that in Israel there is no physics internships and research projects offered for students at...

We know that as speed increases, time slows, and at the speed of light time apparently ceases. Imagine a hypothetical hitch-hiker sitting on a photon and speeding through the universe at -- well, the speed of light. If time has stopped for him (her?), what is his experience of his journey? Are...

Does anyone use a curved 34" 4K HD monitor with Windows 10? I've been thinking about upgrading my WFH office, which has two 24" HD monitors, one of which is on the fritz, but it's a narrow space so I'm wondering whether the higher res and expanse of the monitor means you need to sit further back...

Many years ago I went to the cinema to watch Avatar in 3D, and was provided with polarising 3D glasses at the venue. I can't remember if it was my first 3D film that involved polarising projection technology, but it was certainly one of my first. In any case, the 3D effect worked and I got...

Hello! As I said in the summary, this is inspired by Millikan's experiment. Suppose you have 19 (closed) packages, all filled with different quantities of the same unknown object (which has a mass of m). You then weigh these packages one by one. How could you estimate the mass "m" of that...

The Earth's circumference at the equator is 24,901 miles, or 40.075 million meters. It rotates completely once a day or in 86400 seconds. The speed of sound is 343 m/s and the Earth moves at the equator at 40.075 million m/86400 s = 463.831019 m / s which is clearly faster than the speed of...

Nothing

I hope this helps some of you.

I recently was asked to create some new exercises for a course that are more suited for online learning. It is a grad-level course and involves working in an online environment (jupyter) and doing some exercises on specific physics concepts using python. They were given working examples that...

Summary:: I'm a portuguese citizen, holding a BSc in Meteorology, Oceanography and Geophysics, and I've been applying for job opportunities related to weather forecasting, internationally. I have no experience in it whatsoever, and I would probably require sponsoring. Is it reasonable to...

photos are in the speed of light which means that the fasts change in photons energy would take infinite time for the outside observer so does it means that the photons can't spin or interact with each other or have any kind of change

Due to not having any money after financial aid this semester (also covid, no job, etc.) I don't have money to afford to take the physics GRE. I do however work in a lab as a research assistant and have research experience. I'd like to get into a school for astrophysics potentially. Any...

Hello! I'm a newbie here, so I apologize if I posted this in the wrong area of if this has already been answered. I'm a Mechanical engineering major at Georgia Tech (but I'll probably switch to Engineering Physics). Nonetheless, I'm very intrigued by the prospect of nuclear fusion and would...

It is just for teaching experience sharing. Consider a uniform disk. A stretchless and massless wire has been wound on the disk. The end of the wire is attached to the ceiling. Initially the system is at rest as it is shown at the picture. Then the disk is released. It falls down and rotates and...

I was wondering if someone has any experience of using a "large-scale" ELN system for experimental physics (mainly)? That is, ELNs that are used throughout an organisation to ensure compliance, proper handover etc Where I work there is now a discussion about buying a site-wide ELN to replace...

Hey guys, first post. This might get sort of long, so brace yourselves. tl;dr at the end. I’m a college student who just finished up the semester and has 4 months (and any free time during the following school year) to go all out and relearn all of the fundamentals of math up to but excluding...

I received a bachelors degree in physics in 2018 . Due to circumstances out of my control , I did not learn as much physics and math as I should have. My grades were very mediocre , but I realized later that I was being pushed through the system because I was a first generation minority student...

Hey, I hope everyone is doing well. Let's self-quarantine and protect our world from this pandemic. As we have lots of spare time, I just thought of sharing some latest experience I had. I'm doing my master's in Petrochemical engineering. Last month I just visited a company that provides forged...

Hi, I am a physics major in my second year . So far, i did not do any research and with the current Coronavirus situation, getting into a research program in my university is unlikely (since most of them are experimental). I had some questions about the research experience of graduate school...

The Mathpix Snip tool is quite impressive. I recommend you check it out! It could save you a lot of effort in trying to write $\rm\LaTeX$ code.

I'm currently living in Hawaii, and am having trouble finding good work. I have been using Indeed without much success at all. I also know about Monster and Glassdoor, but I tend to want to stick to just one generic job-hunting site. I recently found a job site associated apparently with the...

Hello everyone! Before I begin, I would like to thank you for helping me by responding or just being intrigued by this. I’m a high school student who wants to basically have a very deep understanding of classical mechanics (for f=ma exam and ultimately my dream). My only experience with physics...

Hi everyone, I am a final-year undergraduate in Physics. I actually created this account purely to ask for some advice. I have been considering pursuing a physics PhD ever since my first year, but my current experience in my final-year project (FYP) has been difficult and I'm wondering if this...

Hi I wrote a code in a specific topic, for example, Molecular dynamics How can I state it in my resume? "Code development of water transport through a carbon nanotube with the molecular dynamics method." "Molecular dynamics simulation of water transport through a carbon nanotube." OR? If...

Hi, I just hit my head on the top of my car door as I was leaving my car; the hit hurt my head a lot and I am worried that I received a concussion. However, I read that most concussions require more than 65 Gs of force to be classified a concussion which is why I am wondering if someone here...

Can anyone share their experience? I don't get cravings when I don't have access to it. But when I have access, I don't seem to be able to stop. i recently quit for 2 days, started again and I finally quit today for good

Hi all, Curious if anyone has worked with SQL Server Dev 2017 with ML and Python Server, i.e., with the full data analysis platform and what your experiences are.

The book explains covalent bonding is due to exchange forces of attraction, which isn't a real force but the last term in [5.22]. This term arises due to electrons being indistinguishable particles. If electrons were distinguishable, there would be no exchange forces. Then, would there still be...

Summary: (undergrad student) What is something I can do this summer to develop my creative instinct in engineering? Hey everyone! I am currently an undergrad freshman studying mechanical engineering. I love the courses and I understand the scientific concepts, but I know that engineering is a...

[FONT=Calibri]I’m watching TV. An excited electron in an LED in the screen falls back to its normal energy state, releasing a quantum of electromagnetic energy in the form of a photon. Let’s call this event ‘A’ (x1, y1, z1, t1). The wave packet of this photon fills the universe (quantum...

Would this be correct: in MWI, if a binary measurement is made, the world splits, say in world A and B. Is it then correct to say that you experience both A and B, but that the experiences of A and B become separated?

Long time reader, first time posting here in physics forums. I know that according to relativity photons have no proper time. I also know that a photon of sufficient energy can interact with a nucleus's nuclear force via the weak interaction resulting in pair production. I was looking at a...

Hi. I’m currently self-learning physics and hopefully will apply for a PhD in physics, but there are some problems troubling me. I received my BS. and MS. degrees in EE in China. I’ve been working for five years since then. From high school, my two major interests are physics and computer...

I am just looking for some opinions. I have been considering going to get my masters in Material Science (I have a B.S. in physics). I currently have a great job in the field, and it teaches me a ton. When getting my masters, I would keep the job, and they would even pay for a lot of it. I can't...

I'm currently studying in a Canadian University(SFU). I've come to notice that the astronomy/physics portion here is lacking. There are a few astrophyics/cosmology research teams but they are small and encompass a few graduate students. I'm a first year, I really want to get involved in research...

Homework Statement I would like to understand why alpha particles experience large angle deflections and if this is the same thing as recoil of alpha particles? Do large angle deflections occur near the end of the alpha particle track or can they occur at any point along the trajectory...

If we have solution of an equation as x=1, it may be expressing, depending on context, 1 apple, 1 excess certain thing, etc. And, if we have solution of an equation as x=-1, it may be expressing, depending on context, 1 deficient apple, 1 deficient certain thing, etc. Is there any experience...

Hi, I am currently looking for employment whilst finishing my PhD, I have a published review but I have not yet published my experimental papers. Since they are near completion (well, one of them) I am hoping (if my supervisor let's me) to release a preprint. I would like to ask anyone who has...

I'm 31 years old & going to enter into 2nd year of BEng mech. Degree which has 3 years.I already have diploma in marine engineering & have sailed on ocen going ships for 1 year as junior engineer.Is the first is better? (1.Is 1 year experience on ships can relate to mechanical experience...

I’m 3 weeks into my first physics class at college; honors physics 1. I really want to major in physics because it’s really interesting, but I’m finding the class very difficult. Trying to solve the textbook problems and follow the professor’s train of thought is very tough, which is frankly...

As far as I know, a object will experience time slower when its speed is close to the speed of light. But photons themselves moves at the speed of light, does that mean that they experience no time?

For example, do electrons, atoms etc. experience gravity? Is this proved by experiment?