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The Quantum Theory (Classic Reprint) - Couverture souple

Reiche, Fritz

 
9781440059490: The Quantum Theory (Classic Reprint)

Synopsis

This book is a detailed introduction to the origins and development of quantum theory. The author starts at the turn of the 20th century, with the black-body radiation problem. They describe how the problem led to Max Planck's quantum hypothesis, and discuss the difficulties that hypothesis posed for classical physics. They then go on to describe how Albert Einstein subsequently applied Planck's work to phenomena such as the photoelectric effect and Brownian motion. Finally, they trace the development of quantum mechanics in the 1920s and 1930s, with topics such as wave-particle duality and the uncertainty principle. Throughout the book, the author emphasizes the historical context of the development of quantum theory, and the human stories of some of the key scientists involved.

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Présentation de l'éditeur

Excerpt from The Quantum Theory

The old saying that small causes give rise to great effects has been confirmed more than once in the history of physics. For, very frequently, inconspicuous differences between theory and experiment (which did not, however, escape the vigilant eye of the investigator) have become starting-points of new and important researches.

Out of the well-known Michelson-Morley experiment, which, in spite of the application of the most powerful methods of exact optical measurement, failed to show an influence of the earth's movement on the propagation of light as was predicted by classical theory, there arose the great structure of Einstein's Theory of Relativity. In the same way the trifling difference between the measured and calculated values of black-body radiation gave rise to the Quantum Theory which, formulated by Max Planck, was destined to revolutionise in the course of time almost all departments of physics.

The quantum theory is yet comparatively young. It is therefore not surprising that we are confronted with an unfinished theory still in process of development which, changing constantly in many directions, must often destroy what it has built up a short time before. But under such circumstances as these, in which the theory is continually deriving new nourishment from a fresh stream of ideas and suggestions, there is a peculiar fascination in attempting to review the life-history of the quantum theory to the present time and in disclosing the kernel which will certainly outlast changes of form.

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