GR Class: Is it Enough to "Know" General Relativity?

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Discussion Overview

The discussion revolves around the question of whether taking a graduate-level course in General Relativity (GR) is sufficient for someone to claim they "know" the subject. Participants explore the nature of understanding in GR, the importance of mathematical foundations, and the potential learning outcomes from such a course.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that the definition of "understanding" is crucial, as one could claim to know GR through popularized sources without deep comprehension.
  • There is an emphasis on the importance of mathematics, particularly Tensor Calculus and Differential Geometry, as essential for grasping GR.
  • One participant notes that taking a harder course generally leads to more learning, implying that a challenging GR course could be beneficial.
  • A participant with a PhD mentions their intrigue in GR but does not claim to fully "know" it, suggesting that advanced courses may cover complex topics like cosmological theories and black holes.
  • Another participant advises discussing the course specifics with the instructor to gauge its depth and suitability for the student's level.
  • There is a sentiment that completing a course may not necessarily lead to a full understanding of GR.

Areas of Agreement / Disagreement

Participants express differing views on what constitutes "knowing" GR and whether a single course can provide that understanding. There is no consensus on the sufficiency of a graduate-level course for claiming knowledge of GR.

Contextual Notes

Some participants highlight the limitations of secondary education in providing the necessary mathematical background for GR, indicating a potential gap in preparation for advanced study.

nlsherrill
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I may have the option my senior year to take a GR class at the graduate level. I was wondering if taking this class would be sufficient enough for me to say I "know" general relativity? Do you have to be an active researcher in the field to have a firm grasp of GR, or can one simply take a course in it and understand it to a reasonable level?
 
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nlsherrill said:
I may have the option my senior year to take a GR class at the graduate level. I was wondering if taking this class would be sufficient enough for me to say I "know" general relativity? Do you have to be an active researcher in the field to have a firm grasp of GR, or can one simply take a course in it and understand it to a reasonable level?
It depends on the "definition of understanding". You could read a book or attend a seminary of popularized physics and still claim to know what GR is about.

Personally I consider mathematics to be the only key for unlocking the knowledge. (Too poetic but still valid!) In this case, the maths that are required (Tensor Calculus, Differential Geometry etc.) could no way be provided in secondary school.
 
I take it by your saying graduate level that you are in college. I have not taken any GR classes nor am I even in college, but as a general rule, I would usually say that the harder the course, the more you will learn and the faster you will learn it. So if you aren't afraid of a harder course, I would say go for it. If you like it, take even harder courses and so on and so forth.
 
Trifis said:
It depends on the "definition of understanding". You could read a book or attend a seminary of popularized physics and still claim to know what GR is about.

Personally I consider mathematics to be the only key for unlocking the knowledge. (Too poetic but still valid!) In this case, the maths that are required (Tensor Calculus, Differential Geometry etc.) could no way be provided in secondary school.


...I mean't senior year in college. I'm a sophomore in physics and mathematics.
 
nlsherrill said:
...I mean't senior year in college. I'm a sophomore in physics and mathematics.
Sorry for the misunderstanding. I'm from Europe where serior year means twelfth grade:wink:
 
My PhD c2006 concerned a lot about General Relativity. I don't claim to "know" it but rather I am intruiged by it.

It sounds like you are asking yourself the question of whether I am intruiged enough to follow an advanced course.

I am not familiar with what you have learned so far but my guess would be that is a further course on GR exists in your college then the content is really likely to be the cool stuff, i.e., for instance GR in cosmological theories, Kerr & Reidster-Nordstrum black holes, stationary black holes and perhaps spinor algebra and the Newman-Penrose formalism.

Hapy hunting!
 
Depends on the instructor, honestly. You should talk to whoever is teaching the course, and find out what it's going to be like. It's entirely possible to learn something useful in a course like that without it being way over your head. But no, I wouldn't say you'd understand GR after that.
 

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