Options Definition and 315 Threads

I'm a current undergrad in my 3rd year, and I'm trying to get things in check to keep my options open for my two biggest passions for grad school and thereafter. I'm interested in theoretical physics relating to dark energy, dark matter, black holes, and the like. At the same time, even more...

assalamualaikum (peace be upon you), brothers and sisters. i m new member. i m actually having trouble with understanding the functions and options of this site. i m unable to find my profile. hope to get help. [Translation by the Mentors via Google Translate] :smile:

I'm on centos 7. I'm wondering what could be the differences between these two? I've read this but could not grasp what they're trying to say. Can you give me an example scenario to work with? https://unix.stackexchange.com/questions/608822/difference-between-usermod-ag-and-usermod-g-options

I was wondering if humans send spacecraft far enough into space in the future (for example Alpha Centauri or other star systems further away), is there any particular distance where it might make more sense to communicate between star systems by making a star blink with some sort of shutter...

I'm building a power hammer for a buddy's forge and am working through the design phase. We are going to use a 1200lb leaf spring to actuate the upper anvil. Pretty much got the mechanical design down, but having some issues with the selection of motor and control. The leaf spring we selected...

Once the water began to boil running up the reaction rate in Chernobyl unit 4, was there something different than the AZ-5 switch that the operators could have done which would have saved the reactor, or at least limited what happened to a meltdown?

I'm in a tough spot right now, and would appreciate learning about my options. I'm fully vaccinated with the Moderna vaccine, and reasonably good for travel options to most western countries for business trips now (modulo the Delta variant surge and its restrictions). I really need to travel...

I posted here before about my struggle to secure a job in Canada. I am still in the same position. Many and many rejections letters. I consulted with someone I know who is working in the industry in my field, and told me "honestly, with 3 years gap in the last 6, and 4 years since your last job...

actually I didn't find this a slam dunk question...

I thought I had a long-term backup of my important stuff when I bought a 1Tb Seagate External Drive. It died and took years of projects and memories with it. Running Win10 on a laptop. I think there are three options: Another (better) external drive Some newfangled solid-state external drive...

Could you tell me which one of these, but also why because I want to understand. Thank you!

I am trying to model stress in simple objects such as a disk, a cube, a rectangular prism or a solid ball under their own weight or additional point mass weight on top to demonstrate such material response to students. I understand the usual process is to set up Mesh, boundary condition, and...

I have a question both with regards to the current virus as well as to other potential diseases that are carried around in aerosol form, I have seen that commonly all hand sanitizers or sanitizers in general that use substances that are safe to humans use alcohol in some form. So I would presume...

hi everyone, I am 30 years old and always had a affinity for physics. i was wondering since i was never any good at school, what career options would you recomend.

The motor from this fine, old and very heavy machine is designed to take UK 3ph, 415V. There are only three connections inside, and the nameplate says it’s wired in star. I have stripped it down and cannot locate the star point. I was hoping to rewire it to delta, and run it with a 1ph/240V to...

I am graduating with a bachelors in Physics next year and I found an interest in Proton Beam Therapy. What post graduate degree would align with PBT?

Summary: My school does not offer any engineering majors. I am attending university this upcoming fall and I have realized that I more interested in bioengineering than chemistry or biology. The only bad thing is that my university does not offer any engineering degrees. Should I major in...

I'm trying to make a magnetic globe (magnetic from outside) with diameter of about 30 cm. Please imagine it as a snow globe, while it is magnetic as well :). I'm wondering about the options to make it, as light as possible. Please feel free to suggest tags here, if I'm missing anything or I...

Hi. I am currently studying the market for equity options and the use of these to predict stock return around company earnings announcements. The dependent variable in my regression analyses have been the relative change in stock price or log-return from the day before the announcement to...

I'm an old man. I cut my teeth on *pew pew* games in the video arcades of bowling alleys. I burned out my video game organ decades ago. The only carryover was games like Myst and SimCity and some of those Discover new lands type games. I like construction games rather than competitive or battle...

Hi PF, I graduated (MSc) six months ago with a 3.7/4.0 GPA and is still unemployed. During my time at university, I focused on my studies and did not give my future work life much thought. Consequently, I do not really know what my options are as a physicist. Sure, after reading countless job...

Does anyone have any experience with FFKM sealing solutions? I am looking for rubber seals to be used in the chemical processing industry and would need material that has high chemical resistant properties. I've done some research online and found something called TRPlast which has a similar...

The only thing I know is that phase constant tells how much a signal is shifted along the x-axis. The answer of the question is both option a and b. I am not getting it!

Greg Bernhardt submitted a new PF Insights post A Simplified Synthesis of Financial Options Pricing Continue reading the Original PF Insights Post.

I need to pressurized argon gas from 1 bar pressure to 2 bar pressure. Flow rate outlet is 0.5 LPM. Can anybody suggest me a pump or compressor which is small in size? Minitiarised diaphragm seems good option but is it right one?

Hello. I am a Physicist with MSc in Experimental Particle Physics and for the last 3 years I work in the field of Science Education as a teacher trainer, and developer of inquiry based, ICT enhanced educational content in the field of Physics for K12 students in the RnD department of a school in...

I need help in selecting best pcb design software out of kicad, eagle and altium. I have to design pcb for my project. But I am having confusion in these software.

Hello, recently I have been looking into colleges and I'd just like someone who has some experience to give some ideas! Thank you in advance for any responses! A bit of background. I am 18, turning 19 in June and I would say I am a gifted person when it comes to learning. I love to learn and...

Hello, I was wondering whether one same protein can assume different foldings that can do different functions in the organism? (each folding still having the usual active/inactive state) And if the is a specific example for this? Many thanks for any thoughts!

Hello! I am in my last year of undergraduate studies, as a physics and math major and I would like to continue to graduate school on theoretical physics. I got accepted to several program which are ok (ranked between 10th-20th) such as John Hopkins, Maryland, UC San Diego however I also got...

Hey everyone, At present, I'm trying to determine whether I should pursue a masters degree in health physics vs medical physics in pursuit of a career in radiation safety. From what I've seen in RSO job postings, requirements can vary rather widely depending on the institution, state...

Hello, thank you for your time in reading this. I graduated in 2016 with a 3.0ish GPA in Physics and Math in Ontario. I have no research experience because I felt my GPA disqualified me from the right to approach professors for those positions. However, now that I have graduated and given both...

Hi everyone. One of the perennial favourite topics here in the Career Guidance section is the employability of physics graduates, including those with just a BSc degree instead of a PhD. I've found the following links on Metafilter and Reddit which I thought might be relevant (the last...

Hey Everyone, My name is James, and I am a 2nd year University student. I'm switching my major to Engineering, and I am beginning to study physics (as a pre-requisite), and I love it! I think I would like to study materials engineering ... my mind may change as I keep studying). however, right...

Hi all, I'm an undergrad Physics and Mech. Engineering major (possible astrophysics as well). This past semester I've been dealing with some personal issues and I ended up with sub par grades as a result. I now officially have a C and a C+ on my transcript (along with a few B/B+). I'm a rising...

Hello all, I am a little confused at this stage of my life about what to do. To give a background, I have a PhD in EE with specialization in wireless communication from a Canadian university. Soon after I finished my PhD I was hired as a postdoc for almost 18 months. Since I finished my first...

Hello all, I am currently choosing my classes for my first year studies in honors physics at the University of Alberta and am seeking some advice on my Arts options. I want them to be interesting and at least somewhat relevant to my studies in science. With that being said, I am thinking of...

Homework Statement Solve for the roots of the following. (What do you notice about the complex roots?) b) x3 + x2 + 2x + 1 = 0 Homework Equations To find roots of a polynomial of degree n > 3, look at the constant and take all its factors. Those are possible roots. Then plug them into see...

Hi, I am doing a Masters in theoretical particle physics (in Canada, where Masters is a separate degree from PhD). My research is mostly pen and paper work. There's no programming. My coursework was in quantum field theory, general relativity and cosmology. Recently, I have lost my interest in...

hello, So I'm currently enrolled in an MS physics program thesis option.This is my first semester and I have realized that I will not pursue a PhD. I know my university offers ms in physics with a profesional track to which I will have to do some form of internship. In the case that I decide to...

Hello,I'm in Y11 And 5 Days away from deciding on my A-level Options... I would like to do medicine at Cambridge when i am older... I am academically v.strong... I was going to choose: 1)Physics 2)Biology 3)Chemistry 4)Mathematics 5)Further mathematics Are these good options? Hard? Thanks.

I have a large image that I made (a river running to the Washington coast on the Olympic Penninsula) by montaging together 32 pictures I took on my T3i in photoshop. It is 24,362 × 8,801 pixels. It looks like this (a smallified version): The photoshop file was greater than 2 gigabites...

The task was to make python code which utilizes functions and main program. the objective is to make function which takes two parameters (ostensibly number values) and outputs the smaller of the numbers. I realized that the problem statement in a sense was incomplete because there is the...

The following online courses are available to me through my work for free: Calculus 1 (almost finished) Calculus 2 Multivariable Calc Linear Algebra Ordinary Diff equations Partial Diff equations Complex Variables I I plan on doing 4 to 6 of these math courses before going into a program at...

For all my friends I live in middle east and need to know can a vpn encript my internet traffic What should i use that 1 Is there a technology to be able to break the vpn if yes how to over come such problem That 2 I am on android so all the answers should be to solve android situation...

Hi all, After a major in physics (European university), a PhD in AMO physics (laser matter interaction) I am in the beginning of my 3rd postdoctoral position. I have been always studying laser interaction (from moderate to strong intensities) with molecules , atoms and (for a while surfaces). I...

Hi all, I'm justifying asking the forum because I'm currently in an introductory computational physics course that requires Mathematica, and I hope to soon start other computational work. My https://www.amazon.com/dp/B009AEPQDI/?tag=pfamazon01-20's motherboard and hard drive are supposedly...

I graduated with a B.E.E. last year, took some time off now i am planning to pursue a masters degree in engineering. i did graduate with a decent grade but i did not enjoy studying electrical engineering at all. my aptitude is more towards management and arts. are there any masters options in...

Hey guys, I checked through previous posts, none that I found quite matched what I'm looking for so i thought I'd create a new one. I apologize in advance if someone finds an identical topic, by all means, link it to me! Anyway, I'm in a position right now where my job is entirely remote, and...

I am an engineering graduate(ME) and want to study physics at masters level. If I get a Masters degree in theoretical physics, can I go for a PhD. in an experimental sub field? Say, I write a thesis in Nuclear & particle physics to get a masters degree, Can I go for experimental Nuclear &...