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Learning SR and GR

  1. Oct 27, 2012 #1

    bgq

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    Hi,

    Are there any free online reliable resources to learn SR and GR?

    Thanks.
     
  2. jcsd
  3. Oct 27, 2012 #2
    Hi bqq, rather good starters are Einstein's summaries- even if some modern resources are easier.
    An important advantage is that you won't have to unlearn misinformation about SR and GR. Thus :

    - http://www.fourmilab.ch/etexts/einstein/specrel/www/
    You can replace §3 by http://www.bartleby.com/173/11.html and http://www.bartleby.com/173/a1.html
    - http://www.bartleby.com/173/
    - http://en.wikisource.org/wiki/The_Foundation_of_the_Generalised_Theory_of_Relativity
    [EDIT:] See a not-so-subtle modification at the bottom of: http://math.ucr.edu/home/baez/physics/Relativity/SR/TwinParadox/twin_gr.html - and note also that all the first-order effects can be derived without tensors but I don't know a web resource for that.

    On SR there is also for example http://galileoandeinstein.physics.virginia.edu/lectures/michelson.html - very clear resource but regretfully with a few serious glitches.
    [EDIT: see https://www.physicsforums.com/showpost.php?p=4105964 + https://www.physicsforums.com/showthread.php?t=641102&page=2]
     
    Last edited: Oct 28, 2012
  4. Oct 27, 2012 #3

    PAllen

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  5. Oct 29, 2012 #4

    bgq

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    Thank you very much.
     
  6. Oct 29, 2012 #5

    PAllen

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    Do you know an on line version of "The Meaning of Relatvity" by Einstein. Unlike all of your links, this was his most complete exposition of SR and GR for a professional audience (and also includes his final version of unified field theory). It is, in a real sense, Einstein's last word on all these matters:

    - has updates past 1950 [by Einstein; latest revision less than 2 yrs. before his death.]
    - full mathematical depth for the professional audience

    I always prefer it over everything earlier/simplified, but I have never found an online version of it.
     
  7. Oct 29, 2012 #6

    pervect

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    I'm not terribly familiar with it, but Projet Guttenburg has it , apparently. http://www.gutenberg.org/ebooks/36276
     
  8. Oct 29, 2012 #7

    PAllen

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    Please note, this modification is only of the axiomatic basis and side philosophy. Note, for SR dozens of different axiomatic bases have been proposed, leading to the same result; for GR, MTW list 6 axiomatic bases of GR. The theory (equations + definition of observables) has not changed.

    [Edit: Let me clarify that despite above quibble, I wholeheartedly agree with Harrylin's list of links as great way to get going.]
     
    Last edited: Oct 29, 2012
  9. Oct 29, 2012 #8

    PAllen

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    Apparently not. That forms just the first part of the book periodically issued by Princeton whenever Einstein updated it. It doesn't have the two newer sections on cosmology; and the unified field theory. I suspect it doesn't have assorted corrections throughout the text.
     
  10. Oct 29, 2012 #9
    Regretfully I don't know an online version including past 1950 updates; and there is an obvious reason why, even if I knew one, I could probably not (yet) post it here!
     
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