Paradigm Lost: Nikola Tesla's True Wireless Page 28

66. Matthew Josephson, Edison: A Biography, (Wiley, New York, 1992) p. 359.

67. The web site https://en.wikipedia.org/wiki/List_of_Nikola_Tesla_patents lists 111 or 112 U.S. Tesla patents (depending on how they are counted).

68. Nikola Tesla, “My Inventions,” Electrical Experimenter, 1919, see chapter 5, available on the Internet http://www.teslasautobiography.com/ See also Carlson, chapter 15.

69. T. C. Martin, pp. 346–7. In the late 19th century, Tesla spoke repeatedly of disturbing the electrostatic condition of the earth as a means of sending intelligence. See also Martin p. 292 for an example used in a speech before the British IEE in 1892.

70. This tube appears in a speech he gave in 1892 to the Institution of Electrical Engineers (London). See T. C. Martin ed. pp. 225–229.

71. Gerald Tyne, Saga of the Vacuum Tube, (Antique Electronic Supply, Tempe AZ. 1977).

72. Mike Adams, “Hugo Gernsback: Predicting Radio Broadcasting, 1919–1924,” Antique Wireless Association Review, vol. 27, August 2014, pp. 165–192.

73. For a listing of the Tesla U.S. patents see http://web.mit.edu/most/Public/Tesla1/alpha_tesla.html. The number for Gernsback was obtained from a search of Google Patents using his name as the inventor. Footnote 64 above also gives a source of Tesla’s patents.

74. Carlson, p. 379.

75. K. Massie, and Stephen Perry, “Hugo Gernsback and Radio Magazines: An Influential Intersection in Broadcast History,” Journal of Radio Studies, vol. 9, no. 2, 2002. Note that the magazine was originally titled The Electrical Experimenter. The title was shortened during 1917.

76. The term was apparently first used in Gernsback’s magazine Wonder Stories in the issue of June 1929; Gernsback had earlier coined the term “scientifiction.” See Leon Stover, Science Fiction from Wells to Heinlein, (McFarland Publishers, Jefferson, NC, 2002) p. 9.

77. Frederick Strong, “The Home Treatment of Tuberculosis by High Frequency Currents,” The Electrical Experimenter, vol. 5, no. 10, Feb. 1918.

78. http://maia.usno.navy.mil/women_history/lewis.html.

79. M. Ashley and R. Lowndes, The Gernsback Days, (Wildside Press, Rockville, MD, 2004) p. 51–2.

80. https://en.wikipedia.org/wiki/Cavendish_experiment.

81. Ashley, above, p. 53.

82. Stover, p. 175. In 1923 Gernsback produced a book, Radio for All, published by Lippincott. The work was designed to introduce people to what was still in many ways a hobby. Thus, there were instructions for building simple radios — crystal and one-or two-tube sets, as well as transmitters. It is puzzling that the book makes no mention of the work of Tesla, given his friendship with Gernsback, although there are numerous allusions to Marconi as well as single references to such inventors as Poulsen, Pickard, Fessenden, and Dunwoody.

Acknowledgements

I would like to thank Dr. Elizabeth Bruton of the University of Manchester, Jodrell Bank Discovery Centre, for reading this paper and offering useful advice. And I would also like to thank Prof. Karl Stephan of Texas State University, San Marcos, for giving me a valuable library of early textbooks on wireless telegraphy. I would like to thank Prof. Chen-Pang Yeang of the University of Toronto, a distinguished historian of early 20th-century wave propagation theory, for his comments. I am indebted to this journal’s editor Dr. Eric Wenaas for many useful suggestions that resulted in my paring down this paper and making it clearer.

About the Author

A. David Wunsch was born in Brooklyn, NY, on December 15, 1939. He grew up in the same Flatbush neighborhood of red diaper babies as Bernie Sanders. David studied electrical engineering at Cornell and later earned his Ph.D. at