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Before the Big Bang: The Prehistory of Our Universe
Brian Clegg. St. Martin's, $25.95 (320p) ISBN 978-0-312-38547-7
The title of well-known science writer Clegg's newest is a bit of a teaser: as Clegg (A Brief History of Infinity) himself admits: "we may never have a definitive answer to the question, "What came before the Big Bang?" But there are lots of theories running around waving their hands to be noticed and get funding. Clegg devotes the first half of his book to the problems that face big bang theorists (when did the bang happen? How big was it? what caused it?). He …