What is Einstein's theory of relativity? The big bang theory? Curvature of spacetime? …… [ 展开全部 ] What do astronomers mean when they talk of a "flat universe"? This authoritative guide to the cosmos offers answers to these and other questions. It features cross-referenced background chapters which provide readers with an introduction to the state of cosmological knwwledge and an A-Z body o...(展开全部) What is Einstein's theory of relativity? The big bang theory? Curvature of spacetime? What do astronomers mean when they talk of a "flat universe"? This authoritative guide to the cosmos offers answers to these and other questions. It features cross-referenced background chapters which provide readers with an introduction to the state of cosmological knwwledge and an A-Z body of entries which can be used as a quick reference to a wide range of terms and concepts. Entries include topics such as: Black Hole; Doppler Effect; Fermi, Enrico; Heat Death of the Universe; Life in the Universe; Olber's Paradox; Quantum Field Theory; and Supernova.
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