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Laddar... Space, Time, and Gravity: The Theory of the Big Bang and Black Holesav Robert M. Wald
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Writing for the general reader or student, Wald has completely revised and updated this highly regarded work to include recent developments in black hole physics and cosmology. Nature called the first edition "a very readable and accurate account of modern relativity physics for the layman within the unavoidable constraint of almost no mathematics. . . . A well written, entertaining and authoritative book." Inga biblioteksbeskrivningar kunde hittas. |
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Google Books — Laddar... GenrerMelvil Decimal System (DDC)523.1Natural sciences and mathematics Astronomy Astronomical objects and astrophysics UniverseKlassifikation enligt LCBetygMedelbetyg:
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In most respects the author was far more careful than most to hedge his speculations, to clarify some of the more exotic points, and to refrain from wild-eyed speculation.
Having said that, I still found some areas disappointing --- can I truly be the only person on earth who understands this stuff?
* The discussion of black hole thermodynamics did not give us the claim about the entropy representing the number of ways the black hole could form, thank god, but seemed unaware of how the thermodynamics could be seen as an extension of Plancks 1895 work, and thus treated black hole entropy as something strange, not "real" entropy.
* There was no discussion of the interior of black holes, or anything to do with black holes as absolute elsewhere. Thus we get statements that are simply wrong, like creation of a black hole violates conservation laws like baryon number conservation.
* The discussion of Penrose energy extraction with its strange statements about negative energy based on "space-like" time made absolutely no sense to me. ( )