Page:Elementary lectures on electric discharges, waves and impulses, and other transients (Steinmetz 1911).djvu/9

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vi
PREFACE.
with transient phenomena by the inspection of their record on the photographic film of the oscillograph. I would therefore recommend the reading of the following pages as an introduction to the study of “Transient Phenomena,” as the knowledge gained thereby of the physical nature materially assists in the understanding of their mathematical representation, which latter obviously is necessary for their numerical calculation and predetermination.

The book contains a series of lectures on electric discharges, waves, and impulses, which was given during the last winter to the graduate classes of Union University as an elementary introduction to and “translation from mathematics into English” of the “Theory and Calculation of Transient Electric Phenomena and Oscillations.” Hereto has been added a chapter on the calculation of capacities and inductances of conductors, since capacity and inductance are the fundamental quantities on which the transients depend.

In the preparation of the work, I have been materially assisted by Mr. C. M. Davis, M.E.E., who kindly corrected and edited the manuscript and illustrations, and to whom I wish to express my thanks.

CHARLES PROTEUS STEINMETZ.

October, 1911.