- #1
MathematicalPhysicist
Gold Member
- 4,699
- 371
i wonder, the book by kip thorne and john wheeler called gravitation, is it a technical textbook on gr? and on a scale of 1-5 (1-easy 5 extremely hard) how would you rate this book?
are there any other challenging textbooks on GR?
are there any other challenging textbooks on GR?