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In this book, a physicist and expert on the history of the Manhattan Project clearly explains the underlying science behind the development of the atomic bomb, including how atomic bombs work, the Hiroshima and Nagasaki missions, and the legacy of the Project.

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The development of atomic bombs under the auspices of the U. S. Army´s Manhattan Project during World War II is considered to be the outstanding news story of the twentieth century. In this book, a physicist and expert on the history of the Project presents a comprehensive overview of this momentous achievement. The first three chapters cover the history of nuclear physics from the discovery of radioactivity to the discovery of fission, and would be ideal for instructors of a sophomore-level "Modern Physics" course. Student-level exercises at the ends of the chapters are accompanied by answers. Chapter 7 covers the physics of first-generation fission weapons at a similar level, again accompanied by exercises and answers. For the interested layman and for non-science students and instructors, the book includes extensive qualitative material on the history, organization, implementation, and results of the Manhattan Project and the Hiroshima and Nagasaki bombing missions. The reader also learns about the legacy of the Project as reflected in the current world stockpiles of nuclear weapons.

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Introduction and Overview.- A Short History of Nuclear Physics to the Mid-1930s.- The Discovery and Interpretation of Nuclear Fission.- Organizing the Manhattan Project, 1939-1943.- Oak Ridge, CP-1, and the Clinton Engineer Works.- The Hanford Engineer Works.- Los Alamos, Trinity, and Tinian.- Hiroshima and Nagasaki.- The Legacy of Manhattan.- Glossary.

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The author holds a Ph.D. in Physics from the University of Waterloo (Canada) and has published 20 technical and semi-popular-level papers on the Manhattan Project and related nuclear history in publications such as American Journal of Physics, The Physics Teacher, European Journal of Physics, Natural Science, American Scientist, Physics & Society and Physics in Perspective. In 2009 he was made a Fellow of the American Physical Society in recognition of my contributions " ... to the history of both the physics and the development of nuclear weapons in the Manhattan Project."

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