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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 (), 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. 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 discover and develop 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. 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 General relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915, with contributions by many others after 1915. According to general relativity, the observed gravitational attraction between masses results ...
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. .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. Since its emergence in the 1950s, the existence of the related gravity control propulsion research has not been a subject of controversy for aerospace writers, critics, and
conspiracy theory A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources: * * * * The term has a nega ...
advocates alike, 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. The gravitics programs had not been evinced by any technological artifacts, such as the Project Pluto Tory IIA, the world's first
nuclear Nuclear may refer to: Physics Relating to the nucleus of the atom: *Nuclear engineering *Nuclear physics *Nuclear power *Nuclear reactor *Nuclear weapon *Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics *Nuclear space * 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. 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 A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources: * * * * The term has a nega ...
anecdotes have suggested much higher levels of success to the G-projects than mainstream science.


Histories

Recent historical analysis and reports have attracted attention to the agencies and firms that had participated in the gravity control propulsion research. James E. Allen,
BAE Systems BAE Systems plc (BAE) is a British multinational arms, security, and aerospace company based in London, England. It is the largest defence contractor in Europe, and ranked the seventh-largest in the world based on applicable 2021 revenues. ...
consultant and engineering professor at Kingston University, referred to those programs in his history of novel propulsion systems for the journal ''Progress in Aerospace Sciences''. Research by Dr. David Kaiser, Associate Professor of the History of Science, Massachusetts Institute of Technology, manifested the contributions made by the Gravity Research Foundation to the pedagogical aspects of the golden age of general relativity. Dr. Joshua Goldberg, Syracuse University, described the Air Force's support of relativity research during that period. Progress reports and anecdotes and Internet resumes of former visiting and staff scientists have been the sources of the history of the Research Institute for Advanced Study (RIAS). Former aviation editor of ''Jane's Defence Weekly'', Nick Cook, drew attention to the antigravity programs through worldwide publications of his book,Cook, N. (2002). ''The hunt for zero point: Inside the classified world of antigravity technology''. New York: Broadway Books. . ''The Hunt for Zero Point'', and subsequent televised documentaries. Mainstream historical accounts of the G-projects have been supplemented with
conspiracy theory A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources: * * * * The term has a nega ...
anecdotes.


Coetaneous literature

Lists of the research institutes, industrial sites, and policy makers along with statements from prominent physicists were provided in five comprehensive works that had been published during the early years of the gravity control propulsion research. Aviation Studies (International) Limited, London, published a detailed report about those activities by the Gravity Research Group that was later declassified. The '' Journal of the British Interplanetary Society'' and ''The Aeroplane'' published the propulsion survey and critical assessment of the American gravitics research by the internationally recognized astronautics historian A. V. Cleaver. The ''
New York Herald Tribune The ''New York Herald Tribune'' was a newspaper published between 1924 and 1966. It was created in 1924 when Ogden Mills Reid of the ''New-York Tribune'' acquired the ''New York Herald''. It was regarded as a "writer's newspaper" and competed ...
'' and ''
Miami Herald The ''Miami Herald'' is an American daily newspaper owned by the McClatchy Company and headquartered in Doral, Florida, a List of communities in Miami-Dade County, Florida, city in western Miami-Dade County, Florida, Miami-Dade County and the M ...
'' published a series of three articles by one of the world's greatest aviation journalists of the twentieth century, Ansel Talbert.Talbert, A. E. (1955a, November 20). Conquest of gravity aim of top scientists in U.S., ''New York Herald-Tribune: Sunday'', pp. 1 and 36. Talbert, A. E. (1955b, November 21). Space-ship marvel seen if gravity is outwitted, ''New York Herald-Tribune: Monday'', pp. 1 and 6. Talbert, A. E. (1955c, November 22). New air dream-planes flying outside gravity, ''New York Herald-Tribune: Tuesday'', pp. 6 and 10. Talbert, A. E. (1955, November 30). Scientists taking first steps in assault on gravity barrier, ''The Miami Herald: Wednesday'', pp. 1, 2-A. Talbert, A. E. (1955, December 1). Future planes may defy gravity and air lift in space travel, ''The Miami Herald: Thursday'', p. 2-B. Talbert, A. E. (1955, December 2). Engineers Aiming to Flout Gravity, ''The Miami Herald: Friday''. Talbert's two series of newspaper articles took place in the midst of the policy-by-press-release era. Neither his, nor the writings that followed the five prominent works from that period, yielded denials and/or retractions.


UFO and conspiracy theory literature

Gravity control propulsion research had been the subject of widely published UFO literature. The documented testimonies of whistleblowers edited by Dr.
Steven Greer Steven Macon Greer (June 28, 1955) is an American ufologistLewis-Kraus, Gideon (April 30, 2021How the Pentagon Started Taking U.F.O.s Seriously ''The New Yorker''. Retrieved on July 5, 2021. who founded the Center for the Study of Extraterrestria ...
, Director of the Disclosure Project;Greer, S. M. (2001). ''Disclosure: Military and government witnesses reveal the greatest secrets in modern history''. Crozet, Virginia: Crossing Point, Incorporated. . anecdotes and schematics by Mark McCandlish and Milton William Cooper;Cooper, M. W. (1991). ''Behold a pale horse''. Flagstaff, Arizona: Light Technology Publishing . and the reports by
Philip J. Corso Philip James Corso (May 22, 1915 – July 16, 1998) was an American Army officer. He served in the United States Army from February 23, 1942, to March 1, 1963, and earned the rank of lieutenant colonel. Corso published ''The Day After Roswell' ...
,Corso, P. J. (1997). ''The day after Roswell''. New York: Pocket Books. . David Darlington,Darlington, D. (1997). ''Area 51: The dreamland chronicles''. New York: Henry Holt and Company, Inc. . and Donald Keyhoe,Keyhoe, D. (1966, January). I know the secret of the flying saucers. ''True, The Man's Magazine'', 47(344), 340. Keyhoe, Donald (1974, December). ''Aliens from Space - The Real Story of Unidentified Flying Objects'' (pp. 39-40). New York: The New American Library. LCCN 73-83597. famous UFO researcher, have suggested incorporation of reverse engineering of recovered extraterrestrial vehicles with the anti-gravity propulsion projects had enabled them to continue beyond 1973 to successfully manufacture antigravity vehicles. Branches of the military and defense agencies have denied and refuted such claims.


Theoretical research agencies

Talbert indicated the rationale for the intensified interest in gravity control propulsion research had stemmed from the works of three physicists. They were Bryce DeWitt's prize-winning Gravity Research Foundation essay; the book ''Gravity and the Universe'' by Pascual Jordan; and presentations to the
International Astronautical Federation The International Astronautical Federation (IAF) is an international space advocacy organization based in Paris, and founded in 1951 as a non-governmental organization to establish a dialogue between scientists around the world and to lay t ...
by Dr.
Burkhard Heim Burkhard Heim (; 9 February 1925 – 14 January 2001) was a German theoretical physicist. He devoted a large portion of his life to the pursuit of his unified field theory, Heim theory. One of his childhood ambitions was to develop a method of s ...
. DeWitt's essay discouraged the pursuit of materials that shield, reflect, and/or insulate gravity and emphasized the need to encourage young physicists to pursue gravitational research. He opened his essay with the following paragraph: :Before anyone can have the audacity to formulate even the most rudimentary plan of attack on the problem of harnessing the force of gravitation, he must understand the nature of his adversary. I take it as most axiomatic that the phenomenon of gravitation is poorly understood even by the best of minds, and the last word on it is very far indeed from having been spoken. Several articles cited his essay during and after the gravity control propulsion research period. Within a few years facilities emerged embodying the theme of DeWitt's call for increased stimuli for research. Physical principle surveys by Cleaver and Weyl stated the antigravity research was not based on any recognized theoretical breakthroughs. Cleaver's skepticism suggested an alternative rationale for establishing that research was based on a science fiction novel. Weyl charged publishers with poor journalism; attacked their terminology; and gave the highest rating for prospective physical principles for gravity control propulsion to Burkhard Heim's works. Stambler leveled harsh criticisms against Gluraheff's gravitation hypothesis. Talbert and other authors listed the following three agencies as the principal facilities that had conducted the theoretical research:


Gravity Research Foundation

Several articles contained expressions of gratitude for the support to the gravity control propulsion endeavor by the Gravity Research Foundation. Even though the Foundation was a humble, non-profit organization, its creator, Roger Babson, used his wealth and influence to mobilize industries; raise private and government funding; and motivate engineers and physicists to conduct research in
gravity shielding The term gravitational shielding refers to a hypothetical process of shielding an object from the influence of a gravitational field. Such processes, if they existed, would have the effect of reducing the weight of an object. The shape of the shie ...
and control. According to his autobiography: "The purpose of the Foundation is to encourage others to work on gravity problems and aid others in obtaining rewards for their efforts." During Babson's lifetime, the Foundation conducted Gravity Day Conferences each summer; established a library on gravity; solicited essays that addressed (1.) various prospects for shielding gravity, (2.) the development and/or discovery of materials that could convert gravitational force into heat, or (3.) methods of manipulating gravity; and installed monuments at various universities that cited its antigravity focus.


Aerospace Research Laboratories

In September, 1956, the General Physics Laboratory of the Aeronautical Research Laboratories (ARL) at Wright-Patterson Air Force Base, Dayton, Ohio, commenced an intense program to coordinate research into gravitational and unified field theories with the hiring of Joshua N. Goldberg. Creation by ARL of Goldberg's program may have been coincidental to Talbert's disclosures of commitments to gravity control propulsion research. The precise rationale for creating the program and justifying its budgets and personnel may never be determined. Neither Goldberg nor the Air Force's Deputy for Scientific and Technical Information, Walter Blados, were able to locate the founding documents. Roy Kerr, a former ARL scientist, stated the antigravity propulsion purpose of ARL was "rubbish" and that "The only real use that the USAF made of us was when some crackpot sent them a proposal for antigravity or for converting rotary motion inside a spaceship to a translational driving system." The December 30, 1957 issue of Product Engineering closed its report with the following statement: :Nevertheless, the Air Force is encouraging research in electrogravitics, and many companies and individuals are working on the problem. It could be that one of them will confound the experts. During the following sixteen years, its name was changed to the Aerospace Research Laboratories. The ARL scientists produced nineteen technical reports and over seventy peer-reviewed journal articles. The Air Force's Foreign Technical Division, and other agencies, investigated stories about Soviet attempts to understand gravity. Such actions were consistent with the paranoia of the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because the ...
. The funding for the military components of the gravity control propulsion research had been terminated by the Mansfield Amendment of 1973. Black project experts, conspiracy theorists, and whistleblowers had suggested the gravity control propulsion efforts had achieved their goals and had been continued decades beyond 1973.


Research Institute for Advanced Study (RIAS)

The Research Institute for Advanced Study (RIAS) was conceived by George S. Trimble, the vice president for aviation and advanced propulsion systems,
Glenn L. Martin Company The Glenn L. Martin Company—also known as The Martin Company from 1957-1961—was an American aircraft and aerospace manufacturing company founded by aviation pioneer Glenn L. Martin, and operated between 1917-1961. The Martin Company produc ...
, and was placed under the direct supervision of Welcome Bender. The first person Bender hired was Louis Witten, an authority on gravitation physics. Talbert's article had announced Trimble's completion of contractual agreements with Pascual Jordan and
Burkhard Heim Burkhard Heim (; 9 February 1925 – 14 January 2001) was a German theoretical physicist. He devoted a large portion of his life to the pursuit of his unified field theory, Heim theory. One of his childhood ambitions was to develop a method of s ...
for RIAS. Subsequent hires yielded a half dozen gravity researchers known as the field theory group.
Arthur C. Clarke Sir Arthur Charles Clarke (16 December 191719 March 2008) was an English science-fiction writer, science writer, futurist, inventor, undersea explorer, and television series host. He co-wrote the screenplay for the 1968 film '' 2001: A Spac ...
and others stated that RIAS' assembly of talent was qualified for the task of discovering new principles that could be used to develop gravity control propulsion systems. The quest for propulsion through gravity control was vaguely implied in various publications. Works by Cook and Cleaver summarized statements in the RIAS brochures. Cook had equated the broad range of RIAS's mission statements with those of Skunk Works. In 1958, Mallan reported "the control of the force of gravity itself for propulsion" was one of the unorthodox goals initiated by Trimble for RIAS. RIAS was renamed the Research Institute for Advanced Studies during the sixties when the American-Marietta Company merged with Martin to become the
Martin Marietta The Martin Marietta Corporation was an American company founded in 1961 through the merger of Glenn L. Martin Company and American-Marietta Corporation. In 1995, it merged with Lockheed Corporation to form Lockheed Martin. History Martin Mari ...
Company. The 1995 merger that yielded the
Lockheed Martin The Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It ...
Company modified its goals, but not its name.


Aerospace firms

Talbert's newspaper series and subsequent articles in technical magazines and journals listed the names of aerospace firms conducting gravity control propulsion research. The Gravity Research Group indicated those companies had constructed "rigs" to improve the performance of Thomas Townsend Brown's gravitators through attempts to develop materials with high dielectric constants (k). Gravity Rand Limited provided a set of guidelines to help management conduct research and nurture creativity. Articles about the gravity propulsion research by the aerospace firms ceased after 1974. None of the companies featured in those publications had filed retractions. The following aerospace firms have been cited in the works published from 1955 through 1974: * Bell Aircraft, Buffalo, New York. * Boeing Aircraft. * Clarke Electronics,
Palm Springs, California Palm Springs (Cahuilla: ''Séc-he'') is a desert resort city in Riverside County, California, United States, within the Colorado Desert's Coachella Valley. The city covers approximately , making it the largest city in Riverside County by land a ...
. * Convair, San Diego. * Douglas Aircraft. *Electronics Division, Ryan Aeronautical Company, San Diego. * General Electric. *
Glenn L. Martin Company The Glenn L. Martin Company—also known as The Martin Company from 1957-1961—was an American aircraft and aerospace manufacturing company founded by aviation pioneer Glenn L. Martin, and operated between 1917-1961. The Martin Company produc ...
,
Baltimore, Maryland Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was ...
. * Gluhareff Helicopter & Airplane Corporation,
Manhattan Beach, California Manhattan Beach is a city in southwestern Los Angeles County, California, United States, on the Pacific Ocean, Pacific coast south of El Segundo, California, El Segundo, west of Hawthorne, California, Hawthorne and Redondo Beach, California, Red ...
. * Grumman Aircraft. * Hiller Aircraft. * Hughes Aircraft. * Lear Incorporated, Santa Monica, California. * Lockheed Aircraft Corporation. *
Radio Corporation Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30  hertz (Hz) and 300  gigahertz (GHz). They are generated by an electronic device called a tra ...
. *Sikorsky Division of United Aircraft. *Sperry Gyroscope Division of Sperry Rand Corporation, Great Neck, Long Island.


Reported breakthroughs

None of the reported experimental breakthroughs published during the 1950s and 1960s have been recognized by the aerospace community.


Experimental


Brown's gravitator

Various reports indicated Brown's gravitators were the main experimental focus of the gravity control propulsion research. According to
G. Harry Stine George Harry Stine (March 26, 1928 – November 2, 1997) was one of the founding figures of model rocketry, a science and technology writer, and (under the name Lee Correy) a science fiction author. Education and early career Stine grew up i ...
and Intel, research on Brown's gravitators became classified immediately after demonstrations of 30% weight reductions. Thomas Townsend Brown had obtained a British patent for high voltage, symmetric, parallel plate capacitors, that he called gravitators, in 1928. Brown claimed they would produce a net thrust in the direction of the anode of the capacitor that varied slightly with the positions of the Moon. The scientific community rejected such claims as products of pseudoscience and/or misinterpretations of
ion wind Ion wind, ionic wind, corona wind or electric wind is the airflow induced by electrostatic forces linked to corona discharge arising at the tips of some sharp conductors (such as points or blades) subjected to high voltage relative to ground. Ion ...
effects. Independent research found small amounts of lift from Brown's gravitator based on an inefficient use of ionic propulsion. The devices were named Ion Lifters or Ionocraft and were reported to be able to lift the empty shell of a vehicle under ideal conditions, but not the additional machinery required to generate the electric field. Gravity effects were not found in the independent research.


Kaplan's gravity-like impulses

In July 1960, ''Missiles and Rockets'' reported Martin N. Kaplan, Senior Research Engineer, Electronics Division, Ryan Aeronautical Company, San Diego, had conducted anti-gravitational experiments yielding the promise of impulses, accelerations, and decelerations one hundred times the pull of gravity. Neither comments nor criticism of the report appeared in subsequent articles during the period of intensified gravity control propulsion research (see Section 1 of tractor beam for similar reports).


Theoretical


Forward's rotational field

Robert L. Forward, Hughes Research Laboratories, Malibu, described the theoretical generation of dipole gravitational fields by accelerating a super-dense fluid through pipes wound around a torus. The proposed mechanism relies on the use of a superconducting fluid such as supercooled mercury, being quickly rotated within a circular tube whilst under a high electrical current. It is believed that this creates a powerful electromagnetic force as a torus field to envelop a craft thus effectively reducing its mass and G-forces to near zero allowing almost instantaneous acceleration and deceleration under propulsion.


Legacies

Many of the contributors to general relativity have been supported by and/or associated with the ARL, RIAS, and/or the Gravity Research Foundation. The decades preceding the 1955 revelation of the gravity control propulsion research were a low water mark for general relativity. The following summarizes how the components of that research had stimulated the resurgence of general relativity:


Gravity Research Foundation

Even though some of the physicists who attended the Gravity Day Conferences quietly mocked the anti-gravity mission of the Foundation, it provided significant contributions to mainstream physics. The ''
International Journal of Modern Physics D The ''International Journal of Modern Physics'' is a series of Physics journals published by World Scientific. ''International Journal of Modern Physics A'' The ''International Journal of Modern Physics A'' was established in 1986, and covers ...
'' has featured selected papers from the Gravity Research Foundation essay competition. Many have been incorporated with the collections of the Niels Bohr Library. A few of the Foundation essay contest winners became Nobel laureates (e.g., Ilya Prigogine, Maurice Allais,
George F. Smoot George Fitzgerald Smoot III (born February 20, 1945) is an American astrophysics, astrophysicist, cosmology, cosmologist, Nobel laureate, and the 2nd contestant to win the $1 million prize on ''Are You Smarter than a 5th Grader? (U.S. game show ...
). Foundation essays have been among the resources graduate students check for new ideas. Kaiser summarized the Foundation's influence in the following manner: :Despite the vast conceptual gulf separating Babson from the new generation of relativists, we are left with intriguing, and perhaps ironic associations: by organizing conferences, sponsoring the annual essay contests, and making money and enthusiasm widely available for people interested in gravity, the eccentric Gravity Research Foundation may claim at least some small amount of the credit for helping to stimulate the postwar resurgence of interest in gravitation and general relativity. Foundation trustee, Agnew Bahnson, contacted Dr. Bryce DeWitt with a proposal to fund the creation of a gravity research institute. DeWitt had won the first prize for the 1953 essay contest. The proposed name was changed to the Institute for Field Physics and it was established in 1956 at the University of North Carolina at Chapel Hill under the direction of Bryce and his wife, Cécile DeWitt-Morette. The peer reviewed physics journal, '' Physica C'', published a report by
Eugene Podkletnov Eugene Podkletnov (russian: Евгений Подклетнов, Yevgeny Podkletnov) is a Rossiyane, Russian Ceramic engineering, ceramics engineer known for his claims made in the 1990s of designing and demonstrating gravity shielding devices cons ...
and Nieminen about gravity-like shielding. Although their work had gained international attention, researchers were not able to replicate Podkletnov's initial conditions. But, analyses by Giovanni Modanese and Ning Wu indicated various applications of
quantum gravity theory Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics; it deals with environments in which neither gravitational nor quantum effects can be ignored, such as in the vi ...
could allow gravitational shielding phenomena. Those achievements have not been pursued by the scientific community.


Aerospace Research Laboratories (ARL)

The list of prominent contributors to the golden age of general relativity, contains the names of several scientists who had authored the nineteen ARL Technical Reports and/or seventy papers. The ARL sponsored papers were published in the ''Proceedings of the Royal Society of London, Physical Review, Journal of Mathematical Physics, Physical Review Letters, Physical Review D, Review of Modern Physics, General Relativity and Gravitation, International Journal of Theoretical Physics'', and ''Nuovo Cimento B''. Some of the ARL papers were written in collaboration with RIAS, the U.S. Army Signal Research and Development Laboratory at Fort Monmouth, New Jersey, and the
Office of Naval Research The Office of Naval Research (ONR) is an organization within the United States Department of the Navy responsible for the science and technology programs of the U.S. Navy and Marine Corps. Established by Congress in 1946, its mission is to plan ...
. The ARL had provided significant enhancements to general relativity theory. For example, Roy Kerr's description of the behavior of
space-time In physics, spacetime is a mathematical model that combines the three-dimensional space, three dimensions of space and one dimension of time into a single four-dimensional manifold. Minkowski diagram, Spacetime diagrams can be used to visualize S ...
in the vicinity of a rotating mass was among those works. Goldberg concluded: "However, it should be recognized that, in the United States, the Department of Defense played an essential role in building a strong scientific community without widespread encroachment on academic values."


Research Institute for Advanced Studies (RIAS)

The growth of nonlinear differential equations during the fifties was stimulated by RIAS. One of the leading groups in dynamical systems and control theory, the Lefschetz Center for Dynamical System

was a spinoff from RIAS. After the launch of
Sputnik Sputnik 1 (; see § Etymology) was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It sent a radio signal back to Earth for t ...
, world-class mathematician Solomon Lefschetz came out of retirement to join RIAS in 1958 and formed the world's largest group of mathematicians devoted to research in nonlinear differential equations. The RIAS mathematics group stimulated the growth of nonlinear differential equations through conferences and publications. It left RIAS in 1964 to form the Lefschetz Center for Dynamical Systems at
Brown University Brown University is a private research university in Providence, Rhode Island. Brown is the seventh-oldest institution of higher education in the United States, founded in 1764 as the College in the English Colony of Rhode Island and Providenc ...
, Providence, Rhode Island.


UFO and conspiracy theories

On May 9, 2001, Mark McCandlish testified on the televised news conference held by the Disclosure Project, at the National Press Club, Washington, D.C. He stated gravity control propulsion research had started in the 1950s and had successfully reverse engineered the vehicle retrieved from the Roswell crash site to build three Alien Reproduction Vehicles (ARVs) by 1981. McCandlish described their propulsion systems in terms of Thomas Townsend Brown's gravitators and provided a line drawing of its interior. The diagram closely resembled the drawing provided earlier in Milton William Cooper's book. Another Disclosure Project whistleblower, Philip J. Corso, stated in his book the craft retrieved from the second crash site at Roswell, New Mexico, had a propulsion system resembling Thomas Townsend Brown's gravitators. And, Corso's book featured several gravity control propulsion statements made by
Hermann Oberth Hermann Julius Oberth (; 25 June 1894 – 28 December 1989) was an Austro-Hungarian-born German physicist and engineer. He is considered one of the founding fathers of rocketry and astronautics, along with Robert Esnault-Pelterie, Konstantin Ts ...
. Soon after the end of the Cold War, a small group of scientists and engineers openly expressed their desire to use technologies developed by
black projects A black project is a highly classified, top-secret military or defense project that is not publicly acknowledged by government, military personnel, or contractors. Examples of United States military aircraft developed as black projects include the ...
for civil applications. Steven Greer formed the Disclosure Project in 1995 to help those and other research whistleblowers share their information with and to petition Congress. By 2001, it had provided reports to two Congressional hearings and had acquired over 400 members from branches of the military and aerospace industry. During the early 1960s, Keyhoe published excerpts from a letter by Hermann Oberth that presented explanations for the flight characteristics of UFOs in terms of gravity control propulsion. Prior to Oberth's letter, Keyhoe had supported arguments for magnetic forces as the source of propulsion for UFOs. The letter caused him to search for the existence of gravity control propulsion research programs. The following is a segment of his findings he had released in his 1966 and 1974 publications: :When AF ir forceresearchers fully realized the astounding possibilities, headquarters persuaded scientists, aerospace companies and technical laboratories to set up anti-gravity projects, many of them under secret contracts. Every year, the number of projects increased. In 1965, forty-six unclassified G-projects were confirmed to me by the Scientific Information Exchange of the Smithsonian Institution. Of the forty-six, thirty-three were AF-controlled. During his press conferences on February 2, 1955, in
Bogotá Bogotá (, also , , ), officially Bogotá, Distrito Capital, abbreviated Bogotá, D.C., and formerly known as Santa Fe de Bogotá (; ) during the Spanish period and between 1991 and 2000, is the capital city of Colombia, and one of the larges ...
and February 10, 1955, in Grand Rapids, Michigan, aviation pioneer
William Lear William Powell Lear (June 26, 1902 – May 14, 1978) was an American inventor and businessman. He is best known for founding Learjet, a manufacturer of business jets. He also invented the battery eliminator for the B battery, and developed the ...
stated one of his reasons for believing in flying saucers was the existence of American research efforts into antigravity.Dolan, R. M. (2002). ''UFOs and the national security state: Chronology of a cover-up 1941–1973'' evised Edition Charlottesville, Virginia: Hampton Roads Publishing Company, Inc. . Talbert's series of newspaper articles about the intensified interest in gravity control propulsion research were published during the Thanksgiving week of that year.


References

{{reflist, 20em


Further reading

*Yi, Y. (2004, January). An interview with Jack K. Hale. ''Dynamical Systems Magazine'' (SIAM DSWeb Magazine

Anti-gravity Aerospace engineering organizations Research and development in the United States United States government secrecy Science and technology-related conspiracy theories History of physics History of science and technology in the United States Spacecraft propulsion Scientific speculation Science fiction themes Fringe physics Wright-Patterson Air Force Base