Where to Start with Cosmology: Recommendations for Self-Study

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Discussion Overview

The discussion revolves around recommendations for self-studying cosmology, particularly for individuals starting from a minimal background in physics and mathematics. Participants explore foundational topics and resources necessary for understanding cosmology, including the mathematical prerequisites and introductory materials.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • Some participants emphasize the importance of a strong mathematical foundation, suggesting subjects like calculus, linear algebra, and geometry as essential starting points.
  • Others argue that one does not necessarily need to master general relativity (GR) to begin studying cosmology, noting that many introductory texts start with Newtonian concepts.
  • A participant shares their personal background, indicating a lack of formal physics education and minimal math experience, but expresses a desire to engage with the mathematical aspects of cosmology.
  • Several participants recommend specific textbooks for self-study, including titles on precalculus, calculus, and fundamental physics, while acknowledging that there are many resources available.

Areas of Agreement / Disagreement

Participants generally agree on the necessity of a mathematical background for studying cosmology, but there is disagreement regarding the extent to which general relativity is required at the outset. Multiple competing views on the best starting resources and approaches remain evident.

Contextual Notes

Some participants note the limitations of their recommendations based on personal experiences and the varying levels of mathematical understanding among learners. The discussion reflects a range of assumptions about prior knowledge and the time commitment required for self-study.

Kevin_Hohner
What are the essentials to starting on this topic from the very beginning? What are topics I should have covered before starting? Suggestions please? Thank you.
 
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Cosmology, as with every other field of physics, is math heavy. I would begin there; calculus, linear algebra, etc.
 
Kevin_Hohner said:
What are the essentials to starting on this topic from the very beginning? What are topics I should have covered before starting? Suggestions please? Thank you.
Please put some effort in your post. This does not tell us anything useful. You could be a 10 year old who just watched Hawking and thought he was cool. Or you could be a 30 year old electrical engineer who is interested in doing cosmology as a hobby. If you don't tell us more about you, don't expect good advice from us.
 
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micromass said:
Please put some effort in your post. This does not tell us anything useful. You could be a 10 year old who just watched Hawking and thought he was cool. Or you could be a 30 year old electrical engineer who is interested in doing cosmology as a hobby. If you don't tell us more about you, don't expect good advice from us.
You're right. I guess I didn't know whether to write something longer or to keep it plain and simple. Well, I'm a 24 year old layman with no background in physics and minimal math (last math course I took in high school was Geometry). I've always been fascinated with the universe but I would avoid the math. Until recently I decided I wanted to work some of the problems out to further my understanding of the cosmos. I don't want to continue reading books with no math and just assume everything is true without working out the math problems. With my minimal math and no background physics (I got the 'Basic Physics' workbook that I've been working on), I know it may take years, but I'm willing to work my way from the bottom. Not to mention I have a full time job and I have a little extra time on my hands. I hope this helps and I hope I didn't leave out any information that might be useful. Thanks once again.
 
Well a willingness to work and learn the maths is a good start. I'm not an expert on cosmology, but I know it's based on general relativity, which is a typically a graduate course. So to really understand cosmology and where it comes from, you need a fairly strong background in both math and physics.
If you are just starting out from the ground up, try to solidify your knowledge of algebra, trigonometry, and geometry, and then move onto to calculus.
 
KiggenPig said:
Well a willingness to work and learn the maths is a good start. I'm not an expert on cosmology, but I know it's based on general relativity, which is a typically a graduate course. So to really understand cosmology and where it comes from, you need a fairly strong background in both math and physics.
If you are just starting out from the ground up, try to solidify your knowledge of algebra, trigonometry, and geometry, and then move onto to calculus.
Yes, I have also started reviewing algebra as a start. I forgot to include that as well. But thanks for the insight.
 
One doesn't need GR to start learning cosmology. Most introductory textbooks begin with sections on Newtonian treatment. Some books never go deep into GR, and treat it in purely descriptive terms, or leave the more nitty-gritty bits for their 'advanced topic' sections - like Liddle's 'Introduction to Modern Cosmology'.
You can get quite a good understanding of the subject from that book, and all you need is the basic mathematical background mentioned above (mostly algebra and calculus - up to a good understanding of derivatives and integrals), and a secondary school-level understanding of physics.
 
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^He would know better than I would. Three good starting points for self studying, if you are willing to buy textbooks,

-Precalculus: A Right Triangle Approach (Lial/Hornsby/Schneider/Daniels)
-Calculus: A Complete Course (Adams)
-Fundamentals of Physics (Halliday/Resnick)

There are tons of books out there that can prepare you, so don't feel you have to use these books. They just cover a lot of ground, everything bandersnatch mentioned.
 
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