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Lendle

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10 Illustrations and the author's biography are included in this version.

The World Set Free is a novel published in 1914 by H. G. Wells. The book is considered to foretell nuclear weapons. It had appeared first in serialized form with a different ending as A Prophetic Trilogy, consisting of three books: A Trap to Catch the Sun, The Last War in the World and The World Set Free.

A constant theme of Wells's work, such as his 1901 nonfiction book Anticipations, was the effect of energy and technological advance as a determinant of human progress. The novel begins: "The history of mankind is the history of the attainment of external power. Man is the tool-using, fire-making animal."

Scientists of the time were well aware that the slow natural radioactive decay of elements like radium continues for thousands of years, and that while the rate of energy release is negligible, the total amount released is huge. Wells used this as the basis for his story. In his fiction,

The problem which was already being mooted by such scientific men as Ramsay, Rutherford, and Soddy, in the very beginning of the twentieth century, the problem of inducing radio-activity in the heavier elements and so tapping the internal energy of atoms, was solved by a wonderful combination of induction, intuition, and luck by Holsten so soon as the year 1933.

As demonstrated above, Wells did have some knowledge of atomic physics, and William Ramsay, Ernest Rutherford, and Frederick Soddy's discovery of the disintegration of uranium; Soddy's book Wealth, Virtual Wealth and Debt praises The World Set Free.

The physicist Leó Szilárd read the book in 1932, the same year the neutron was discovered. In 1933 he conceived the idea of neutron chain reaction, and filed for patents on it in 1934.

In Wells's story, the "atomic bombs" have no more force than ordinary high explosive—but they "continue to explode" for long periods of time:

Never before in the history of warfare had there been a continuing explosive; indeed, up to the middle of the twentieth century the only explosives known were combustibles whose explosiveness was due entirely to their instantaneousness; and these atomic bombs which science burst upon the world that night were strange even to the men who used them.

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