This is a reprinted section from Robert Andrews Millikan's "Practical Physics," focusing on the then-emerging technologies of wireless telegraphy and wireless telephony. Published originally in the early 20th century, this text provides a fascinating glimpse into the scientific understanding and practical applications of radio technology at a pivotal moment in its development.
Millikan's clear explanations and diagrams make this section accessible to students and anyone interested in the history of science and technology. The content explores the fundamental principles behind wireless communication, detailing the equipment and methods used in early radio systems. This reprint offers valuable insights into the evolution of modern communication technologies and the foundational scientific work that made them possible.
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