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In April 1943, a young physicist named Robert Serber stood up before a small group of fellow scientists in a laboratory in Los Alamos, New Mexico, and, as one attendee later recalled, began to speak in "a hazy, uncertain voice" about the project on which they would all be working. "The object," he said, "is to produce a practical military weapon in the form of a bomb in which the energy is released by a fast neutron chain reaction in one or more of the materials known to show nuclear fission." That mechanism, of course, was the atomic bomb, which a little more than two years later would be used against Japan.
In the following weeks, Serber touched on many themes, racing to an array of chalkboards to scribble complex formulas and equations. Among other things, he addressed how big a bomb would need to be in order to achieve critical mass--between 13.5 centimeters and 9 centimeters, he calculated--and what the probability of premature detonation might be. (It was, he concluded, always a danger.) At the end of the series, his lecture notes, classified as top secret, were gathered and printed for distribution to later cadres of scientists who came to work at Los Alamos. Years after the war they were declassified, and Serber, who died in May of 1997, took the opportunity to reflect on his work and the strange culture of the laboratory, adding postscripts and other commentary reproduced in the present edition.
Serber's book is an important document in the history of science, and remains one of the most accessible introductions to nuclear physics ever written. (On that note, those who worry that it is all too easy to find bomb-building instructions in the library or on the Web should rest assured: these lectures were tough for the greatest theoretical physicists of the time to follow.) It all makes for provocative reading. --Gregory McNamee
From Book News, Inc.
Serber has annotated the lectures he gave to those joining the scientific elite in the wilderness of Los Alamos, NM in 1943. This is LA-1, the Los Alamos primer, here published for the first time. Edited and introduced by Richard Rhodes (The Making of the atomic bomb). All history of science collections must add this central document. Accessible to the lay reader. Annotation copyright Book News, Inc. Portland, Or.
Book Description
The classified lectures that galvanized the Manhattan Project scientistswith annotations for the nonspecialist reader and an introduction by a Pulitzer Prize-winning historian. In March 1943 a group of young scientists, sequestered on a mesa near Santa Fe, attended a crash course in the new atomic physics. The lecturer was Robert Serber, J. Robert Oppenheimer's protg, and they learned that their job was to invent the world's first atomic bomb. Serber's lecture notes, nicknamed the "Los Alamos Primer," were mimeographed and passed from hand to hand, remaining classified for many years. They are published here for the first time, and now contemporary readers can see just how much was known and how terrifyingly much was unknown when the Manhattan Project began. Could this "gadget," based on the newly discovered principles of nuclear fission, really be designed and built? Could it be small enough and light enough for an airplane to carry? If it could be built, could it be controlled? Working with Richard Rhodes, Pulitzer Prize-winning historian of the development of the atomic bomb, Professor Serber has annotated original lecture notes with explanations of the physics terms for the nonspecialist. His preface, an informal memoir, vividly conveys the mingled excitement, uncertainty, and intensity felt by the Manhattan Project scientists. Rhodes's introduction provides a brief history of the development of atomic physics up to the day that Serber stood before his blackboard at Los Alamos. In this edition, The Los Alamos Primer finally emerges from the archives to give a new understanding of the very beginning of nuclear weapons. No seminar anywhere has had greater historical consequences.
About the Author
Robert Serber is Emeritus Professor of Physics at Columbia University. Richard Rhodes, author most recently of Farm (1989) and A Hole in the World (1990), won the Pulitzer Prize and the National Book Award for The Making of the Atomic Bomb (1987), all published by Simon and Schuster.
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