Wireless Telegraphy and Telephony Simply Explained / A Practical Treatise Embracing Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and Its Present Day Applications, Together With a Chapter on the Possibilities of Its Future Development

Chapter 14: BALLOONS AND FLYING MACHINES

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About This Book

The text explains the physical principles of wireless transmission and reception, describing electromagnetic oscillations and how waves are radiated and intercepted, then surveys practical apparatus such as aerial systems, transmitters, receivers, coils, condensers, spark gaps and detectors. It treats tuning, coupling and directional methods, discusses telephone transmitters and the wireless telephone, and outlines applications in maritime, military and aerial service. Chapters interweave theory, constructional sketches and illustrations, and conclude with reflections on accomplishments, limitations and the technology's prospective development.

BALLOONS AND FLYING MACHINES

MODEL BALLOONS AND FLYING MACHINES. WITH A SHORT ACCOUNT OF THE PROGRESS OF AVIATION. By J. H. ALEXANDER. This book has been written with a view to assist those who desire to construct a model airship or flying machine. It contains five folding plates of working drawings, each sheet containing a different sized machine. Much instruction and amusement can be obtained from the making and flying of these models. A short account of the progress of aviation is included, which will render the book of greater interest. Several illustrations of full sized airship and flying machines of the latest types are scattered throughout the text. This practical work gives data, working drawings, and details which will assist materially those interested in the problems of flight. 127 pages, 45 illustrations, 5 folding plates. Price $1.50