The Neutron and the Bomb: A Biography of Sir James Chadwick

The Neutron and the Bomb: A Biography of Sir James Chadwick

by Andrew Brown

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James Chadwick (1891-1974) came from a humble background: his father was a cotton spinner. He was accepted in the physics department of Sir Ernest Rutherford at Manchester University in 1908 on a scholarship, and soon started publishing new findings about radioactivity. This led to a traveling scholarship to Berlin, where he made the important discovery of the continuous spectrum of ß-particles. When the World War I broke out, Chadwick was interned by the Germans as an enemy alien for the next four years, but continued experiments in the prison camp.

On his return to England in broken health, Rutherford invited Chadwick to join the Cavendish Laboratory in Cambridge where he became Rutherford's deputy and oversaw much groundbreaking physics research over the next 15 years. Chadwick concentrated on finding evidence for the neutron, an uncharged nuclear particle whose existence was first proposed by Rutherford in 1920. Having noticed anomalous results from the Curie laboratory in Paris in 1932, Chadwick used simple bench-top apparatus to convince himself, after weeks of intense observations, that he had definite evidence for the existence of the neutron. The Nobel Prize for physics followed in 1935; that year he moved to Liverpool University to head his own department.

At the outbreak of World War II, the feasibility of atomic bombs of unprecedented explosive power was already being discussed. Chadwick drafted the British MAUD committee's historic reports in the summer of 1941 which concluded that atomic bombs were indeed feasible with sufficient industrial capacity. In wartime Britain this was impossible, but in 1943 Chadwick moved to the US as head of the British scientists working on the Manhattan Project. He formed an unlikely alliance with its leader, General Leslie Groves, and became an adroit scientist-diplomat. Witnessing the first explosion of a plutonium-fueled device at the Trinity Test shattered him. Chadwick believed that dropping atomic bombs on Japanese cities was justified but the development of nuclear weapons as an unintended consequence of his discovery of the neutron caused him deep personal anguish.

"Until this excellent book by Andrew Brown, [Chadwick] has remained the most shadowy of the atomic scientists who, for better or worse, gave the human species mastery over nuclear energy." -- Nigel Calder, New Scientist

"Andrew Brown's biography beautifully reveals [Chadwick's] scientific, diplomatic and personal achievements." -- Roger H Stuewer, Physics Today

"I can warmly recommend this book to all interested in the life of a remarkable scientist who played a crucial role in a formative period of the modern world." -- Hermann Bondi, Times Higher Education Supplement

"This is the biography of a physicist who made one of the most important discoveries in nuclear physics, but retained to his old age the shyness of a young lad... Andrew Brown takes us through Chadwick's life as an adventure... I found it a very good read." -- Hans Bethe, American Journal of Physics

"The tale of so sterling a character, even when told as well as in this book, may be a little short on light moments, but any reader interested in the evolution of physics from an academic passion to a leading role on the world stage will find it a fascinating story and a worthy tribute to a great scientist." -- Brian Pippard, Nature

"... makes absorbing reading... more than the life story of a remarkable man... unfolds the tremendous transformation that science underwent in the 20th century." -- Joseph Rotblat

"... avidly researched and artfully written... This biography... blends elegantly direct scientific descriptions with often witty episodes and character summaries." -- William Lanouette, Bulletin of the Atomic Scientists

Product Details

BN ID: 2940161761236
Publisher: Plunkett Lake Press
Publication date: 08/16/2018
Sold by: Barnes & Noble
Format: NOOK Book
File size: 9 MB

About the Author

Born in London in 1950, Andrew Brown graduated from Bristol University with a psychology degree before entering the Royal Free Hospital School of Medicine. After junior hospital jobs in London, he specialized in radiation oncology. He also spent two years as Medical Director of the National Radiological Protection Board, and later as consultant oncologist at St Thomas Hospital, London. He emigrated to the US in 1990 and spent many years in practice in New Hampshire, before finishing his clinical career in the Department of Radiation Oncology at Duke University.

His professional experience treating patients with X-rays led to a fascination with the history of physics and the nuclear age. His first book, The Neutron and the Bomb: A Biography of Sir James Chadwick, was followed by two other biographies of remarkable, if lesser known, figures who made substantial contributions to the modern world. J D Bernal: the Sage of Science explores the passionate and pioneering genius, whose work in the field of X-ray crystallography opened the way to contemporary structural biology. The third biography is Keeper of the Nuclear Conscience about the life and work of Joseph Rotblat, the physicist and 1995 Nobel peace laureate.

In addition to medical papers, Brown has also published articles and chapters on radiation risks and nuclear history. He is currently working on a book about A V Hill, the muscle physiologist who shared the 1922 Nobel Prize in Physiology or Medicine, before emerging as a leading anti-fascist and defense expert in the years leading up to World War II.

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