tailieunhanh - THE STORY OF ELECTRICITY

A work on electricity needs little recommendation to stimulate the interest of the general reader. Electricity in its manifold applications is so large a factor in the comfort and convenience of our daily life, so essential to the industrial organization which embraces every dweller in a civilized land, so important in .the development and extension of civilization itself, that a knowledge of its principles and the means through which they are directed to the service of mankind should be a part of the mental equipment of everyone who pretends to education in its truest sense. Let anyone stop to consider. | THE STORY OF ELECTRICITY BY JOHN MUNRO AUTHOR OF ELECTRICITY AND ITS USES PIONEERS OF ELECTRICITY HEROES OF THE TELEGRAPH ETC. AND JOINT AUTHOR OF MUNRO AND JAMIESON S POCKET-BOOK OF ELECTRICAL RULES AND TABLES PREFACE. A work on electricity needs little recommendation to stimulate the interest of the general reader. Electricity in its manifold applications is so large a factor in the comfort and convenience of our daily life so essential to the industrial organization which embraces every dweller in a civilized land so important in the development and extension of civilization itself that a knowledge of its principles and the means through which they are directed to the service of mankind should be a part of the mental equipment of everyone who pretends to education in its truest sense. Let anyone stop to consider how he individually would be affected if all electrical service were suddenly to cease and he cannot fail to appreciate the claims of electricity to attentive study. The purpose of this little book is to present the essential facts of electrical science in a popular and interesting way as befits the scheme of the series to which it belongs. Electrical phenomena have been observed since the first man viewed one of the most spectacular and magnificent of them all in the thunderstorm but the services of electricity which we enjoy are the product solely of scientific achievement in the nineteenth century. It is to these services that the main part of the following discussion is devoted. The introductory chapters deal with various sources of electrical energy in friction chemical action heat and magnetism. The rest of the book describes the applications of electricity in electroplating communication by telegraph telephone and wireless telegraphy the production of light and heat the transmission of power transportation over rails and in vehicles and the multitude of other uses. July 1915. PUBLISHERS NOTE. For our edition of this work the terminology has been .