- #1
vaatmoly
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In Zee's Gravity in a Nutshell P107, 13 lines from the bottom, for a sphere of radius a, should the curvature G be 1/(a^2) instead of a^2?
Question on Equation in Zee's Gravity in a Nutshell P107
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Discussion Overview
The discussion revolves around potential misprints in Zee's "Gravity in a Nutshell," specifically regarding the curvature G for a sphere of radius a on page 107 and the functions B(t,r) and A(t,r) on page 306. The focus is on clarifying these points within the context of the text.
Discussion Character
- Technical explanation, Debate/contested
Main Points Raised
- Some participants propose that the curvature G should be 1/(a^2) instead of a^2, suggesting a misprint in the text.
- Others agree with the notion of a misprint regarding the curvature G.
- A participant raises a further question about whether B(t,r) and A(t,r) should have square roots, to which another participant expresses agreement.
Areas of Agreement / Disagreement
There is some agreement on the potential misprint regarding the curvature G, but the discussion about B(t,r) and A(t,r) remains less clear, with a suggestion of agreement but no definitive consensus.
Contextual Notes
The discussion does not resolve the assumptions or definitions related to the curvature or the functions in question, leaving some ambiguity regarding the correct interpretation of the text.
- #2
martinbn
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Yes, it seems that it is a misprint.vaatmoly said:
- #3
vaatmoly
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Thanks. Since we are on this book, I have another question: on page 306, lines 9 and 11 from the top, should B(t,r) and A(t,r) have square roots on them?martinbn said:
- #4
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I believe so, yes.vaatmoly said:
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