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American interest in "gravity control propulsion research" intensified during the early 1950s. Literature from that period used the terms anti-gravity, anti-gravitation, baricentric, counterbary, electrogravitics (eGrav), G-projects, gravitics, gravity control, and gravity propulsion.〔Gravity Rand Ltd (1956, December). ''The gravitics situation''. In T. Valone (Ed.). (2001, January, 4th ed.) ''Electrogravitics systems: Reports on a new propulsion methodology'' (pp. 42-77). Washington, D.C: Integrity Research Institute. ISBN 0-9641070-0-7〕〔Weyl, A. R. (1957, October). 'Antigravity'. ''Aeronautics'', 37(2), 80-86. (British Aviation Publications). Weyl, A. R. (1959a, January). "Knowledge and possibilities of gravity research" (DTIC No. AD-0830247). W. R. Eichler (Trans.) ''Weltraumfahrt; Zeitschrift für Rakententechnik'', 9, 100-106 (original work published December 1958). Weyl, A. R. (1959b, February). Gravity and the prospects for astronautics. ''Aeronautics'', 59(6), 16-22. (British Aviation Publications).〕 Their publicized goals were to develop and discover technologies and theories for the manipulation of gravity or gravity-like fields for propulsion.〔Gravity Research Group (1956, February). ''Electrogravitic systems: An examination of electrostatic motion, dynamic counterbary and barycentric control'' (Report GRG 013/56). London: Aviation Studies (International) Ltd. In T. Valone (Ed.). (2001, January, 4th ed.) ''Electrogravitics systems: Reports on a new propulsion methodology'' (pp. 11-41). Washington, D.C.: Integrity Research Institute. ISBN 0-9641070-0-7 〕 Although general relativity theory appeared to prohibit anti-gravity propulsion, several programs were funded to develop it through gravitation research from 1955 to 1974. The names of many contributors to general relativity and those of the golden age of general relativity have appeared among documents about the institutions that had served as the theoretical research components of those programs.〔Kaiser, D. (2000). Chapter 10 – Roger Babson and the rediscovery of general relativity. In ''Making theory: Producing physics and physicists in postwar America'' (Ph.D. dissertation: pp. 567-594). Harvard University.〕〔Goldberg, J. M. (1992). United States Air Force support of general relativity: 1956-1972. In, J. Eisenstaedt & A. J. Kox (Ed.), ''Studies in the History of General Relativity, Volume 3'' Boston: Center for Einstein Studies. ISBN 0-8176-3479-7.〕〔Bender, W. W. (1961). ''RIAS''. Baltimore, Maryland: RIAS. Available from Stan Piet, Archive Director, Glenn L. Martin Maryland Aviation Museum, P.O. Box 5024, Middle Road, MD 21220.〕 The existence and 1950s emergence of the gravity control propulsion research have not been a subject of controversy for aerospace writers, critics, and conspiracy theory advocates, but their rationale, effectiveness, and longevity have been the objects of contested views. ==Evidence of existence== Mainstream newspapers, popular magazines, technical journals, and declassified papers reported the existence of the gravity control propulsion research. For example, the title of the March 1956 ''Aero Digest'' article about the intensified interest was "Anti-gravity Booming." A. V. Cleaver made the following statement about the programs in his article: :What are the facts, insofar as they are publicly known, or (as at this date) knowable? Well, they seem to amount to this: The Americans have decided to look into the old science-fictional dream of gravity control, or "anti-gravity," to investigate, both theoretically and (if possible) practically the fundamental nature of gravitational fields and their relationship to electromagnetic and other phenomena – and someone (unknown to the present writer) has apparently decided to call all this study by the high-sounding name of "electro-gravitics." Unknown, too – at least unannounced – is the name of agency or individual who decided to encourage, stimulate, or sponsor this effort, also in just what way it is being done. However, that the effort is in progress there can be little doubt, and, of course, it is entirely to be welcomed.〔Cleaver, A. V. (1957, April–June). 'Electro-gravitics': What it is – or might be. ''Journal of the British Interplanetary Society'', 16(2, issue 75), 84-94. Cleaver, A. V. (1957, March 15). Something about electro-gravitics. ''The Aeroplane'', 92(2376), 385-387.〕 The gravitics programs had not been evinced by any technological artifacts, such as the Project Pluto Tory IIA, the world's first nuclear ramjet. Commemorative monuments by the Gravity Research Foundation have been the artifacts attesting to the early commitments to finding materials and methods to manipulate gravity. The endeavor had the resources and publicity of an initiative, but writers from that period did not describe them with that term. Gladych stated: :At least 14 United States universities and other research centers are hard at work cracking the gravity barrier. And backing the basic research with multi-million dollar secret projects is our aircraft industry.〔Gladych, M. (1957, July). Spaceship that conquers gravity. ''Mechanix Illustrated'', 53(7), 98-100, 174, 181.〕 The writings about the gravity control propulsion research effort had disclosed the "players" and resources while prudently withholding both the specific features of the research and the identity of its coordinating body. Publicized and telecasted conspiracy theory anecdotes have suggested much higher levels of success to the G-projects than mainstream science. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「United States gravity control propulsion research」の詳細全文を読む スポンサード リンク
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