Electric Waves: Being Researches on the Propagation of Electric Action with Finite Velocity Through Space(97 views)
Description: FIRST EDITION IN ENGLISH in original cloth of Hertz's collected papers on electromagnetic waves; the foundation for wireless communication. "By inducing the waves to produce an electrical spark at a distance, with no apparent connection between the oscillator and the spark gap, and by moving the sparking apparatus so that the length of the spark varied, Hertz proved beyond question the passage of electric waves through space" (Printing and the Mind of Man, 377). Originally published in German in 1892, the collected edition gathers together Hertz's important journal publications from 1887-1892 with the addition of an introduction in which Hertz surveys and analyzes his work of the past five years. PMM (Printing and the Mind of Man), 377 (for the German edition). Translated by David Evan Jones. Preface by William Thompson, Lord Kelvin. London and New York: Macmillan and Co., 1893. Octavo, original cloth; custom slipcase. Hinges splitting but holding; small repair to original cloth; text fine. In presentation slipcase: Hughes Aircraft Company Division Invention Award Presented to J.H. Myer, 1976.
Artist or Maker: Hertz, Heinrich