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1. ### Find an expression for a magnetic field from a given electric field

Here this is my attempt : Reference Textbook : Zangwill's Modern Electrodynamics I stuck at the last step , I really have no idea what to do next.
2. ### Courses I think I won't get an A in Quantum Mechanics I

My most annoying habit is I don't know when to skip "the hard part" of the exam and do the easier next part so this often leave me with little time to get more score.
3. ### Courses I think I won't get an A in Quantum Mechanics I

This is by far the hardest undergraduate class I have ever take. The majority of class got less than 40% on the midterm. Unfortunately, I was sick during the exam hours too ,so it's hard for me to concentrate and think clearly Thank god,the professor uses the norm-referenced grading and My...
4. ### Studying How can I deal with a class that moves EXTREMELY fast?

The course's midterm exam is over. I realize I'm going to get a not very high marks due to poor sleep and exhaustion. This also leads me to unfortunately misderived a maxwell-ampere law. I will accept the outcomes but I will try to learn and reflect from it. I'm planning an intensive...
5. ### Need help with calculating a Cv in PHYWE's Heat Capacity of gases

I have tried a dimensional analysis with my units and yes...they are indeed consistent in the form of (J*K^-1*mol^-1). I tried converting all of them to their SI units and plugged them in the equation but the result doesn't get anywhere near 26. I think I'm getting stuck in the endless...
6. ### Need help with calculating a Cv in PHYWE's Heat Capacity of gases

I've conducted this experiment yesterday. The main goal of this experiment is to find a gas constant R and compare it with its theoretical counterpart but I get stuck in calculating a Cv so I tried to find out what's wrong with my calculations by trying to calculate a Cv from the given data...
7. ### Studying How can I deal with a class that moves EXTREMELY fast?

I have no other options but to deal with it because if I drop this class I'll have to spend one more year in the school. It's worse than getting a C for me. I think this is a good opportunity to review and improve my study and work habits. I'll make this class my top priority and I'll use...
8. ### Studying How can I deal with a class that moves EXTREMELY fast?

I'm taking an E/M II class this semester and this class is well known for how fast the class moves. It's lightning fast. The professor literally crams 2 hours worth of materials in 50 minutes. The information flow rate is insane just like drinking from a proverbial firehose. Sometime...
9. ### How to not sound like I'm trying to "educate" or "lecture" someone?

Whenever I try to explain something to some people. They often remark me I'm trying to "lecture" or "educate" them (they're all dean's listers).It surprised me because I thought they would be a quite open-minded folks. I tried to fix this by keeping my ego in checks , speaking in front of mirrow...
10. ### Why does dating seem so easy for other people but not me?

:biggrin: It's worse , I was once "creepzoned" by a girl because of my looks. She said I look like a bank robber. I have never done anything to her.:-p
11. ### Why does dating seem so easy for other people but not me?

I tried to talk with a woman (in platonic way) but I'm run out of topics to talk with her and most topic often end up sound very awkward. Like this one : Me : Hi , have you ever listened to ted talk. Her : Nope , I haven't ...several hours latter... Me : Do you know how to burn garbage...
12. ### Things that you regret not continuing to practice?

I've read about child prodigies and people who are extremely successful at very young age. It always blown my mind what these high-achievers are capable of doing. Would it be good if everyone were born with a complete life-long roadmap , knowing exactly what to do , when to do with...
13. ### Things that you regret not continuing to practice?

"สวัสดี" or in English "sawasdee" was issued by field marshall Pibulsongkram in 1943 as a greeting term and also as a part of civilized national identities . :smile:
14. ### Things that you regret not continuing to practice?

Today, I get really tired after endless hours of preparation for Electromagnetism final so I start tracing on my past internet activities. And I've came across my post from 2012. Suddenly a sense of nostalgia hits me hard. Many old memories started playing back and forth in my head...
15. ### Courses How much understanding is enough to truly master a course?

To be great in something we have to invest a great deal of time. And 300 can be reduced by using the effective resources and study techniques. I think there are much more variables to determine the learning outcomes than the number of hours.
16. ### Courses How much understanding is enough to truly master a course?

There are some students who do everything right. -Sit in the front row -Ask questions -Take neat notes -Review the material before and after the class -Do the problem sets -Teach it to other students -Hand in the assignments on time and do it by themselves -Attend the office hours -Watch online...
17. ### Why does dating seem so easy for other people but not me?

I'll confess here that I've been lurking on the redpill / blackpill subculture since the late 2017 after a long time of isolation from my peers and school failures. It has changed me since. I began to started to start believing that the only main factors that determine my worth and dating...
18. ### Courses How much understanding is enough to truly master a course?

I'm planning to intensively review Electromagnetism (my weakness) ,Classical Mechanics and Thermodynamics this break (April to late June) using textbooks , MIT OCW , online science forums and discuss or email with professors if they have enough time. Not really trying to do something...
19. ### Courses How much understanding is enough to truly master a course?

Do anyone here continue studying on the subjects that you got a not-very-good grades in? (Say, You got a B- in Statistical Mechanics but continue studying on to master the subject anyway , even after the final exam) What was your experience? And how did it benefits you?
20. ### Courses How much understanding is enough to truly master a course?

Agreed , From my personal experience , I only retain information best if I find that topic interesting or enjoyable enough , if the topic was so dry and boring , I forgot everything after I walked out of the exam room and don't even bother try to understand it again.
21. ### Courses How much understanding is enough to truly master a course?

Spot on , Orodruin There was a girl who got a B+ in the same class where I got an A. I realized that she did really learn the material way more than me. She got a good study habit ,took good notes, listening actively ,spreaded the reviewing sessions throughout a month and teach it to...
22. ### How can I finish studying these topics in 45 days? (2 hours a day)

From my personal experience , studying intensively the whole 2 hours may give one something called a "brain fog" and may reduce the learning performance. I would like to recommend you to break it down to 25 minutes study 5 minutes break 25 minutes study 5 minutes break Repeat
23. ### Courses How much understanding is enough to truly master a course?

In the level 3.5 , My professor has explained damped Anharmonic insightfully to me and my friend on the fly in the office hour right after he woke up from a nap! He didn't even need to look up on the notes.
24. ### Courses How much understanding is enough to truly master a course?

Yes , "master" is subjective term. So it's loosely defined. I would like to apply Bloom's theory of learning to this case, My own definition of mastery. Level 1 : Understand the materials given in class, understanding the underlying relationships. Level 2 : Understand it enough to solve the...
25. ### Courses How much understanding is enough to truly master a course?

How much understanding is enough to truly master a course? I'm a 2nd year physics student. Got a so-so GPA.But sometimes I feel like getting an A in a course isn't really enough. For instance , I got an A in Calculus II but today I don't even remember how to derive a general form of power...
26. ### What was the most intellectually stimulating class you have ever taken?

(i) Yes , I did have a skewed view on the stereotypes of "theoretical physics" based purely on cherry-picking fallacy. (ii) I've learned that people whether they're theoreticians or not aren't homogeneous. Different different people have different beliefs values and characteristics. Thanks for...
27. ### What was the most intellectually stimulating class you have ever taken?

This was happened after I decided he was like a priest. I thought people who want to pursue Theoretical Physics fields have to give up the dream of possessing materialistic things ,instant gratifications or limelight. Fully devote themselves to the mission of finding truth and understanding...
28. ### What was the most intellectually stimulating class you have ever taken?

I'm a 2nd year Physics major.Today I'm completely mindblown how nature can be so interconnected and explainable with just short and simple mathmeatical equations. And here this is my experience... This course is called Waves and Vibrations. It is well known for its difficulty in...
29. ### Why does dating seem so easy for other people but not me?

I'm often get called ugly by my crush , friends , teacher and even my sister. They think I escaped from the Dr Frankenstein's lab or the death row. Being a hardworking student , humble and polite are the only redeeming aspects about myself. The worst part is I'm still believe that I'm...
30. ### Are theoretical physicists and pure mathematicians just like priests?

:smile: Liverpool FC uses data science to improve their gameplay strategy. Guess who is behind this work...A physicist who worked for CERN.
31. ### Are theoretical physicists and pure mathematicians just like priests?

Here there's an interesting insight from a https://www.researchgate.net/post/What_motivates_a_theoretical_physicist on researchgate. Robert Shour -- 2nd Feb, 2019 : Neuroscientist Read Montague says that the brain sometimes gives a chemical (dopamine) reward for solving a problem (p. 110, Why...
32. ### Are theoretical physicists and pure mathematicians just like priests?

My professors often remind me that Physics degree is NOT a vocational degree. It doesn't train you for a one specific career but it's a versatile degree that train you how to think. How to disect a complex problem and solve it using a simple first principle. And you can deal with any unseen...
33. ### Are theoretical physicists and pure mathematicians just like priests?

I was often told that If you want to pursue something pure and abstract like theoretical physics and pure maths you have to give up the materialism , say good bye to your dream of living a big house , swimming pool and a yatch. there is no weath in these fields. And people who work in these...
34. ### Why does dating seem so easy for other people but not me?

My parents often told me " don't be desperate, you are still way too young for a serious commitment. Focus on your career first"
35. ### Why does dating seem so easy for other people but not me?

Been here on this floating rock for almost 20 years and still can't find a girlfriend.Every day in college I just wake up eat shower study eat shower and sleep. When it comes to dating . I don't know why it seems so easy for other people. They just get in and out relationships so easily. I...

37. ### Studying Physics is just getting more and more boring for me

Conclusion: -I find physics getting more and more boring because it lacks the soft and fun part and get reduced to nothing more than a mundane and robotic tasks of doing what you've been told so ,memorize sets of facts ,symbols and worked examples to earn a high score. -I feel discouraged from...
38. ### Other How faulty is the current education system?

-I have to go striaght to a graduate school to earn a phd because I'm receiving a Thai government's scholarship(DPST). This scholarship provides one's finiancial support from high school until graduating with a doctorate degree. -Other students mostly become high school teachers (over...
39. ### Other How faulty is the current education system?

Spot on , skipping the basics will surely backfire one later in his career.
40. ### Studying Physics is just getting more and more boring for me

I prefer to study physics and willing to do the hard part but I just find it lacks the developmental aspects/fun parts beyound the textbook so I find it getting more boring. I have to work on my homeworks now because it is due tomorrow ,thank you.
41. ### Studying Physics is just getting more and more boring for me

Thanks for your insightful piece of advice. What really inspired me to study physics was because of biography and contributions of the great ones in the past and how it shaped our world today. The foundation works in order to understand physical reality is not all fun and games because...
42. ### Studying Physics is just getting more and more boring for me

I agreed that motivation plays a huge role in one's studying. We are willing to work all day and night if that things truly fascinate and inspire us not because someone told us so. In my opinion ,Physics getting more and more boring because It lacks "the soft part" : the history ...
43. ### Studying Physics is just getting more and more boring for me

Thailand, First I don't like the way professors do that but now I understand that many of professors have a good reason to not introduce/encourage their students to the exotic materials/topics beyound the course/current education level. They want their students to be truly good at their...
44. ### Studying Physics is just getting more and more boring for me

-The staff does his job well ,I think it's just my counterproductive mentality starting to override. What I'm going to say if in the end only final grade is truly matter why bother putting in more extra works/studies into it when it's not prescribed by the instructor. It is not expected...
45. ### Studying Physics is just getting more and more boring for me

I'm sorry if this sounds uncreative,immature or entitled but I'm going to be honest what I feel about my situation now. I'm currently studying in the 2nd semester of sophomore year physics major and I feel like I have to force myself to wake up and go to the class.I feel like studying...

Here ,these are main challenges to academia employments. -AI Disruption -Quantum Disruption -Online Education -Birth Rate Declination
47. ### Courses What would you do if your school is not rigorous enough?

I will do my best and keep my work ethics high, thank you for the helpful advice.
48. ### Courses What would you do if your school is not rigorous enough?

Yes, there are plenty of well versed professors in the department who publish outstanding researches (some have even made it into Physical Review X). I tried to compensate this by using the office hours , asking insightful questions and borrow them textbooks and the professors are very...
49. ### Other How stable are academia jobs in the Europe and America?

I love this because it gives a researcher an academic freedom enough to conduct a non-profit research ,for example : string theory. In Thailand ,they don't see any monetary benefits from supporting theoretical researches so the funding will be cut and a professor's job will be threatened...
50. ### Other How stable are academia jobs in the Europe and America?

In Thailand university professors become an unstable job due to a new policy. There's literally zero job security even if you get tenured (become associate ,assistant profs) you'll still get sacked by the authorities if you don't conform to them. Little to No retirement pensions. Some professors...