Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development (1922)
Drinker, Frederick E. [from old catalog], Lewis, James G., [from old catalog] joint author · [Philadelphia, Printed by National publishing co.] · leaf 53
Copyright, InternationalONE INCH SQUARE RADIO SETAlfred Giovanni, a fourteen-year-old freshman in the United HighSchool at Knoxville, Pa., with his one inch square radio receivinginstrument, probably the smallest of its kind in the world. The instru-ment is capable of picking up radio messages for… … Copyright, International RECEIVING CROP REPORTS BY WIRELESSNo science in recent years has had such strides as has the scienceof radio. The Chicago Board of Trade has just inaugurated a system ofbroadcasting market reports for the information of farmers and thoseinterested in the production and…
Radio
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