tailieunhanh - Physics in a New Era An Overview

Physics in a New Era: An Overview is the culmination of the National Research Council survey series Physics in a New Era. The survey was proposed by the Board on Physics and Astronomy, continuing the tradition of periodic reviews of physics by the National Research Council. The overview is the final volume of the survey and was welcomed and supported by the Department of Energy, the National Science Foundation, and the National Aeronautics and Space Administration. | NATIONAL RESEARCH COUNCIL physics in a New Era An Overview Physics Survey Overview Committee Board on Physics and Astronomy Division on Engineering and Physical Sciences National Research Council NATIONAL ACADEMY PRESS Washington . NOTICE The project that is the subject of this report was approved by the Governing Board of the National Research Council whose members are drawn from the councils of the National Academy of Sciences the National Academy of Engineering and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. This project has been supported by the National Aeronautics and Space Administration under Grant No. NAG 5-6839 the Department of Energy under Contract No. DE-FG02-98ER-41069 and the National Science Foundation under Grant No. PHY-972-4780. Any opinions findings and conclusions or recommendations expressed in this material are those of the author s and do not necessarily reflect the views of the sponsors. Front cover An example of a form of abstract composition known as Marian vectors based on mathematical processes. Courtesy of the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign. International Standard Book Number 0-309-07342-1 Library of Congress Catalog Card Number 2001-089190 Copies of this report are available from National Academy Press 2101 Constitution Avenue . Lockbox 285 Washington DC 20055 800 624-6242 or 202 334-3313 in the Washington metropolitan area Internet http and Board on Physics and Astronomy National Research Council HA 562 2101 Constitution Avenue . Washington DC 20418 Copyright 2001 by the National Academy of Sciences. All rights reserved. Printed in the United States of .