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First Edition
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Introduction by Erik Gregersen
Library of Congress Cataloging-in-Publication Data
The Britannica guide to relativity and quantum mechanics/edited by Erik Gregersen.
p. cm. —(Physics explained)
“In association with Britannica Educational Publishing, Rosen Educational Services.”
Includes bibliographical references and index.
ISBN /-.#'#,'+)&#).)#& [8eea
1. Relativity (Physics)—Popular works. 2. Quantum theory—Popular works.
I. Gregersen, Erik. II. Title: Guide to relativity and quantum mechanics.
III. Title: Relativity and quantum mechanics.
2011
—dc22
2010027855
On the cover, p. iii: Einstein’s famous formula.
On page x: Composite image of warped space-time. Victor de Schwanberg/Photo Researchers, Inc.
On page xviii: A