|OED requirements||antedating 1900|
|Earliest cite||George Griffiths, A Visit to the Moon|
|Comment||Lawrence Person located a cite in a 1958 reprint of Hugo Gernsback's "Ralph 124C 41+"; Mike Christie verified this in a 1952 edition. Leslie Turek then verified it in the 1925 first edition. The novel first appeared as a serial in the author's first magazine, "Modern Electrics",
in 1911. The story was apparently rewritten but we would like to check that version.
Cory Panshin submitted a cite from a 1979 reprint of George Griffith's "A Visit to the Moon". Ralf Brown verified this in its 1900 serialization in Pearson's Magazine. Mike Christie submitted a 1956 cite from Arthur C. Clarke's "What Goes Up". Jeff Prucher submitted a 1931 cite from Clark Ashton Smith's "An Adventure in Futurity". Jeff Prucher submitted a 1930 cite from Donald Menzel's article "The Equivalent of Perpetual Motion" in Science Wonder Stories. Mike Christie submitted a 1938 cite from Arthur J. Burks' "The Challenge of Atlantis".
|Last modified||6 July, 2008|
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|1900 G. Griffith Visit to Moon in Pearson's Magazine Feb. 141||By means of the ‘R.Force’, or Anti-Gravitational Force, of the secret of which Lord Redgrave is the sole possessor, they are able to navigate with precision and safety the limitless ocean of space.|
|1900 G. Griffith Visit to Moon in A. K. Russell Sci. Fiction by Rivals of H. G. Wells (1979) 117||And thus the chance acquaintance resulted in a partnership, in which the Professor was to find the knowledge and Lord Redgrave the capital for translating the theory of the ‘R. Force’ (Repulsive or Anti-Gravitational Force) into practice, and constructing a vessel which would be capable, not only of rising from the earth, but of passing the limits of the terrestrial atmosphere, and navigating with precision and safety the limitless ocean of Space.|
|1925 H. Gernsback Ralph 124C 41+ (1952) 120||Our anti-gravitational screen still let through some of the gravitational waves, or fifty per cent of the energy, which we could not seem to counteract.|
|1930 D. H. Menzel in Sci. Wonder Stories Feb. 842/2||If one could discover some substance that would insulate from gravity, but an infinitesimal amount of energy would be required to lift a ton weight. Now kick the nullifying screen out of the way. As the mass crashes to the ground it could be hitched to machines and made to do useful work. Since the process, presumably, could be repeated over and over again, we should attain the equivalent of perpetual motion. Since this is impossible, I feel sure that inert anti-gravitational screens are impossible.|
|1931 C. A. Smith in Wonder Stories Apr. 1236/2||I finished my descent of the cliff by the use of an anti-gravitational device.|
|1938 A. J. Burks Challenge of Atlantis in Thrilling Wonder Stories Oct. 58/1||Their spherical planes, flown by antigravitational force, shot into the air, and scattered immediately, to form in threatening squadrons over the four army divisions guarding the Death Valley ‘exit’.|
|1956 A. C. Clarke in Mag. Fantasy & Sci. Fiction Jan. 31/1||The final clue to the antigravitational nature of the field came when they shot a rifle bullet into it and observed the trajectory with a high-speed camera.|