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Hertzian Wave Wireless Telegraphy

By Sir J. A. Fleming
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Engineering & TechnologyScience - Physics

About This Book

A concise, popular-science exposition of early wireless telegraphy that explains how spark transmitters produce electromagnetic waves and how radiators (antennas) emit and shape those waves, using a siren analogy to clarify wave generation and resonance. It surveys transmitter and receiver components, the use of interrupted wave trains to convey Morse signals, experimental observations on antenna capacity and grouped conductors, and issues of range, tuning, and signal isolation. The essays blend qualitative description, laboratory findings, and basic formulae to make the physical principles and engineering challenges of Hertzian-wave communication accessible to readers with elementary electrical knowledge.

About the Author

Fleming, Sir J. A. portrait

Sir J. A. Fleming

Sir J. A. Fleming was a prominent engineer and physicist known for his significant contributions to the field of wireless communication. He is best remembered for his work on Hertzian wave wireless telegraphy, which laid the groundwork for modern radio technology. His notable publications include "Hertzian Wave Wireless Telegraphy" and "Waves and Ripples in Water, Air, and Æther," where he explored the principles of wave propagation in various media. Fleming's research not only advanced scientific understanding but also had a lasting impact on telecommunications, making him a key figure in the development of early 20th-century technology.

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