Learn Cosmology: Beginners Guide to Friedmann Equations

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Discussion Overview

The discussion revolves around resources for learning cosmology, particularly focusing on the Friedmann equations and foundational concepts in physics. Participants express a desire for detailed instructional materials, including video lectures and books, while also addressing the importance of a solid understanding of basic physics principles.

Discussion Character

  • Exploratory
  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant expresses a strong interest in learning cosmology from the basics, specifically mentioning the need for detailed resources on proper distance and comoving distance.
  • Another participant suggests the GGI lectures on fundamental physics as a potential resource for learning.
  • A participant shares concerns about the gap between advanced topics and foundational understanding, emphasizing the need for a solid grasp of classical mechanics and other basic physics concepts before tackling cosmology.
  • Links to the Perimeter Scholars International lectures are provided, although some participants question their suitability for beginners struggling with foundational topics.
  • EDX online courses are recommended as generally good resources for learning physics concepts.
  • A freshman physics major expresses curiosity about cosmology and acknowledges the challenge of understanding it at an early stage, indicating a willingness to explore shared resources.
  • Another participant mentions their enjoyment of problem-solving, highlighting a common interest in engaging with physics challenges.

Areas of Agreement / Disagreement

Participants generally agree on the importance of foundational knowledge in physics before advancing to cosmology. However, there is disagreement regarding the appropriateness of certain advanced resources for beginners.

Contextual Notes

Some participants highlight the need for a structured approach to learning, suggesting that a comprehensive understanding of classical physics is essential before delving into more complex topics like cosmology.

Who May Find This Useful

Individuals interested in learning cosmology, particularly beginners or those seeking foundational knowledge in physics, may find this discussion and the shared resources beneficial.

Arman777
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I want to learn cosmolgy very much,Like from the begining,Proper distance comoving distance how can we measure them then friedmann equations etc.
I know leonard susskind lectures but he is describing too general,I want more detail. Is there any other good video lectures...(I couldn't find) a book will also fine but video lectures are best for me.
 
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I sense a wide gap between what you bring up here and threads like
Arman777 said:
I am really troubling to understand the rotational motion concept. Like angular accceleration,angular velocity torque ext. I don't know, I listened my professor's video lectures, I looked some online course pdfs but I need to learn the basics and I need more basic practice for simple understanding .
Any advice ? Thanks
or
Arman777 said:
I am studying Lineer Momentum. And I am not quite sure the understand the principles and basics of it. Is there any lecture video or note that I can understand better. Level should be undergrad freshman.

I really admire your ambition, but without a solid foundation you'll be in trouble sooner or later. Most likely sooner. My advice: study the physics curriculum at your (or any other) university and notice they all do classical mechanics, classical electrostatics, classical electrodynamics, optics, special relativity, introductory quantum mechanics, and build on those. At your age you can pick up things quickly and you don't seem to realize that laying sound foundations under a whacky building is nearly impossible.

Furthermore @ZapperZ 's advice is sound: work on exercises as much as you can and don't think they are wasting your time for a moment!
ZapperZ said:
What you should do is pick out ONE example of a problem ...
 
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You might like the Perimeter Scholars International lectures
http://perimeterinstitute.ca/training/perimeter-scholars-international/lectures/2014/2015-psi-lectures
 
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If he's struggling with linear momentum and rotational motion, the Perimeter Scholars International lectures are too advanced for him.
 
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I am a freshman student in physics major.I just want to know for curious,Just learn some stuff getting simple ideas etc..I love cosmology...Its really early to underistand I know...I ll look all linkes that you shared.And Try to pick one and see I can understand or not.Even probably I ll not have a time for look in this semester.Maybe in summer
 
I am studying,I like solving problems...Thats what we like to do.
 

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