Gravity's Lens: Views of the New Cosmology (Wiley Science Editions)

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9780471632825: Gravity's Lens: Views of the New Cosmology (Wiley Science Editions)

A highly readable and entertaining guide to modern cosmology. Brings to life new discoveries in the farthest reaches of space, making astronomy accessible to the general reader. Discusses, in nontechnical language, cosmic strings, inflationary models of the early universe, the superstring theory, quasars, galactic streamers, superluminal jets, and gravitational lenses. Building from an historical perspective, the author describes exotic celestial phenomena, and explains the latest theories of the birth and death of the universe.

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From Publishers Weekly:

Einstein predicted that the gravitational bending of light rays by massive objects could actually be observed. Yet it wasn't until the 1978 discovery of a twin quasar that astronomers witnessed a "gravity lens" in action. Since then, scientists have become keenly interested in exploiting the lens-like action of aligned galaxies to probe the structure of far-flung matter and measure the distances between stars. Gravity lenses are just one among many exciting developments in cosmology surveyed in this short, basic primer. The book also reviews the 1987 discovery of a "brown dwarf" (a star not quite hot enough to trigger its own nuclear fires), the mapping of megaclusters of galaxy clusters, and reviews trendy superstring theory, which posits clone universes and multiple dimensions. Cohen, a physics professor at Boston University, uses scores of computer-enhanced photographs and diagrams to illustrate key points. Avoiding overly technical discussion, he crams in an abundance of material, from subatomic particles to the frustrating search for "dark matter" hidden somewhere in the universe.
Copyright 1988 Reed Business Information, Inc.

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