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English: Drawing of an early demonstration Lecher line apparatus, from a 1902 catalog of scientific equipment. It is very similar to the first Lecher line built by Austrian physicist Ernst Lecher
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Russian Translation: Radio Wave Propagation and the Ionosphere. Ya. L. Al'pert. Translated from the Russian. Consultants Bureau, New York, 1963. x + 394 pp. Illus. $22.50. | Science
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