The first three minutes
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The first three minutes
Steven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes : the Giant and the Cow 132The Expansion of the Universe 203The Cosmic Microwave Radiation Background 524Recipe for a Hot Universe 815The First Three Minutes 1026A Historical Diversion 1207The First One-hundredth Second 1308Epilogue: the Prospect Ahead 145Afterword 151TABLES: 1. Properties ofSome El The first three minutes ementary Particles 1632. Properties of Some Kinds of Radiation 164Glossary 165PrefaceThis book grew out of a talk I gave at the dedieation of the UndeThe first three minutes
rgraduate Science Center at Harvard in November 1973. Erwin Glikes, president and publisher of Basic Books, heard of this talk from a mutual friend, DSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes gy from time to time, my work has been much more concerned with the physics of the very small, the theory of elementary particles. Also, elementary particle physics has been extraordinarily lively in the last few years, and I had been spending too much time away from it, writing non-technical articl The first three minutes es for various magazines. 1 wanted very much to return full time to my natural habitat, the Physical Review.However, I found that I could not stop thiThe first three minutes
nking about the idea of a book on the early universe. What could be more interesting than the problem of Genesis? Also, it is in the early universe, eSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes all, this is a good time to write about the early universe. In just the last decade a detailed theory of the course of events in the early universe has become widely accepted as a ’standard model’.It is a remarkable thing to be able to say just what the universe was like at the end of the first sec The first three minutes ond or the first minute or the first year. To a physicist, the exhilarating thing is to be able to work things out numerically, to be able to say thatThe first three minutes
at such and such a time the temperature and10 The First Three Minutesand such values. True, we are not absolutely certain about all this, but it is eSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes tter say for what reader this book is intended. I have written for one who is willing to puzzle through some detailed arguments, but who is not at home in either mathematics or physics. Although I must introduce some fairly complicated scientific ideas, no mathematics is used in the body of the book The first three minutes beyond arithmetic, and little or no knowledge of physics or astronomy is assumed in advance. I have tried to be earcfill to define scientific terms wThe first three minutes
hen they arc first used, and in addition I have supplied a glossary of physical and astronomical terms (p. 165). Wherever possible, I have also writteSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes I have tried to write an easy book. When a lawyer writes for the general public, he assumes that they do not know Law French or the Rule Against Perpetuities, but he does not think the worse of them for it, and he does not condescend to them. I want to return the compliment: 1 picture the reader as The first three minutes a smart old attorney who does not speak my language, but who expects nonetheless to hear some convincing arguments before he makes up his mind.For thThe first three minutes
e reader who docs want to sec some of the calculations that underlie the arguments of this book, I have prepared 'A Mathematical Supplement', which foSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes n in any physical science or mathematics. Fortunately, the most important calculations in cosmology are rather simple; it is only here and there that the finer points of general relativity or nuclear physics come into play. Readers who want to pursue this subject on aPreface 11(including my own) lis The first three minutes ted under 'Suggestions for Further Reading' (p. 189).I should also make clear what subject I intended this book to cover. It is definitely not a bookThe first three minutes
about all aspects of cosmology. There is a 'classic' part of the subject, which has to do mostly with the large-scale structure of the present universSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes e; the general relativistic cosmological models of Einstein, de Sitter, Lemaitre, and Friedmann; and so on. This part of cosmology has been described very well in a number of distinguished books, and 1 did not intend to give another full account of it here. The present book is concerned with the ear The first three minutes ly universe, and in particular with the new understanding of the early universe that has grown out of the discovery of the cosmic microwave radiationThe first three minutes
background in 1965.Of course, the theory of the expansion of the universe is an essential ingredient in our present view of the early universe, so 1 hSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes an adequate background, even for the reader completely unfamiliar with cosmology, to understand the recent developments in the theory of the early universe with which the rest of the book is concerned. However, the reader who wants a thorough introduction to the older parts of cosmology is urged to The first three minutes consult the books listed under 'Suggestions for Further Reading'.On the other hand, I have not been able to find any coherent historical account of tThe first three minutes
he recent developments in cosmology. I have therefore been obliged to do a little digging myself, particularly with regard to the fascinating questionSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction: The first three minutes 1 regard this book as aSteven WeinbergThe First Three MinutesA modem view of the origin of the universeFLAMINGOPublished by Fontana PaperbacksContentsPreface 91Introduction:Gọi ngay
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