The Birth of Nuclear Physics

  • Kerry KuehnEmail author
Part of the Undergraduate Lecture Notes in Physics book series (ULNP)


The next reading selection, which is divided between the next two chapters of this volume, originally appeared in 1906 in the Philosophical Journal. Herein, Rutherford addresses the question: what is the identity of the newly-discovered α-particle? In order to answer this question, Rutherford first needed to determine the properties of the α-particle—specifically its speed and charge-to-mass ratio. After all, this is how his mentor, J.J. Thomson, characterized the unique properties of the electron a few years earlier. Rutherford was not the first to attempt such measurements on α-particles. What difficulties did previous researchers encounter? And how were Rutherford’s experiments different?


Grazing Incidence Photographic Plate Natural Width Radium Emanation Extreme Edge 
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© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Wisconsin Lutheran CollegeMilwaukeeUSA

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