@S1-A.ARPA,@MIT-MC.ARPA:jennings@AEROSPACE.ARPA (06/16/85)
From: Richard K. Jennings <jennings@AEROSPACE.ARPA> Conventional Science does not completely preclude antigravitic devices. Some of the following references into the field are to literature published by researchers, both theoretical and applied, who admit to its possibility. *** Some References on Antigravity *** 1. Allais, Maurice FC (Director of Research, Centre National de la Recherche Scientifique, Ecole Nationale Superieur des Mines, Paris) "Should the Laws of Gravitation be Reconsidered?", Aero/Space Engineering, Sept 1959 p46-52, Oct 1959 p51-55, Nov 1959 p55. This describes in some detail some experiments done by the author which seem to indicate that gravity oscillates with a period of 24 hours, 50 minutes with a magnitude of 10e-6g. He then takes this result and, with other referenced anomalies, attempts to make the case that a new theory of gravity should be developed. His experimental results are either forged or are very interesting. Since he seems unaware of relativistic considerations, his analysis is interesting but benign. 2. Cleaver, AV FRAeS Fellow (Assistant Cheif Engineer, Aero Engine Division, Rolls Royce Ltd) "Electro-Gravitics: What it is or might be", Journal of the British Interplanetary Society, Vol 16, No2, Apr-Jun 1957 p84-94. This is the response of a crusty old Brit to a radical new concept from the "Americans" which just might be possible but is much more apt to be much ado about nothing. This article does catalog some of the American participants. 3. Ebershaw, Bernard C. (Mailorder Publisher) Antigravity Propulsion Devices, R&D Associates Inc (PO Box S73, Concord NC 28025), 1980. Consists of a brief enumeration of some of the ideas behind antigravity devices, a bibliography, and copies of some of the better known antigravity patents. 4. Forward, Robert L. (Hughes Research Laboratories, Malibu CA) "Guidelines to Antigravity", American Journal of Physics, Vol 31, Mar 1963 p166-70. This author is quite prolific, and has written articles on gravity for both the technical and lay journals (OMNI) on this topic. His views are founded upon applied theoretical physics, and he is quite conservative with his claims. This particular article is primarily concerned with the mechanisms to mechnaically generate non-Newtonian gravitational fields. 5. Gerartin, Lucien A. (Head, Nuclear Physics Section, Compagnie Francaise Thomson-Houston, Le Raincy, France) "Electro-Gravitic Propulsion", Interavia, Vol XI, No 12, 1956 p992. This article explains the benefits of body forces as opposed to point forces, sketches ideas and phenomena which seem to indicate that antigravity devices are possible, and quotes an exuberant VP of the Martin Company claiming that building an Atomic Bomb is no more difficult than building an antigravity device. 6. Giles, Cedric. "Elevators and Levitators", Journal of the American Rocket Society, No 68, Dec 1946, p34-9. This is interesting mainly because of the date, and the perspective it puts upon the various types of propulsive techniques which it enumerates. Some have been realized, while others (for the moment) have been passed by. 7. Gutman (Goteborg Sweden) "Albert Einstein and Gravity Research", Interavia, Vol XI, No 5, 1956, p375. Based upon Einstein's letters, an argument is made that electro-magnetic fields may be expressed, as in Maxwell's Equations, by six (6) functions of space and time *and* require a gravity field. Conversely, a gravity field requires 10 equations of space and time, and may exist alone. A connection between gravity and electromagnetic phenomena is suggested, with gravity a geometrical phenomena and electromagnetics a physical phenomena. 8. Intel (An anonymous American journalist) "Towards Flight Without Stress or Strain... or Weight", Interavia, Vol XI, No 5, 1956, p373-4. This is pure hype, but does identify some of the investigators, and some of the advantages an antigravity device might have. 9. Kooy, JMJ (Netherlands) "Gravitation and Spaceflight", Acta Astronautica, Vol 4, p229-30, Pergammon Press, 1977, Great Britian. A short, interesting speculation on the nature of gravity, and how it might be exploited to power spacecraft. 10. Saxl, Erwin J (Pin Hill, Harvard MA) "An Electrically Charged Torque Pendulum", Nature, Vol 203, No 4941, JUly 11, 1964, p136-8. A former student of Einstein, this author uses some unexpected phenomena, which he observed while performing extensive tests to characterize the behavior of a charged torque pendulum, to suggest that Einstein might have been right in suggesting that there are interactions between electricity, inertial mass, and gravitation. Ofcourse, this information does not reflect the views of my employer in any way shape or form. Richard K Jennings, CAPT, USAF AFSCF/XRP AV: 799-6427 SAFS, CA 94088-3430 ARPA: jennings@aerospace
keithl@vice.UUCP (Keith Lofstrom) (06/29/85)
In article <2295@mordor.UUCP>, jennings@AEROSPACE.ARPA mentions
a gravitational oscillation "with a period of 24 hours, 50 minutes
with a magnitude of 10e-6g". The author of the paper he cites suggested
a new theory of gravity was needed.
The period mentioned just happens to be the time the Earth takes
to make one revolution RELATIVE TO THE MOON. Hmmm...perhaps he made this
"Earth-shaking" discovery in a lab without windows...
Gravitational fields are inverse square, and gravitational gradients
are equal to the derivative of this field. This means that the lunar
gravitational effect is a little stronger on the near side of the Earth
than on the far side or at the center. That's the source of tides.
Computationally, the size of the effect at the equator is only 1.1e-7g.
This assumes a rigid Earth and no gravitational effects from tidally shifting
oceans and atmosphere, though. Any astronomers care to pick up the
ball (wait 'til after moonrise; it's easier then :-), and do a better
calculation?
Newtonianly yours;
--
Keith Lofstrom
MS 59-316, Tektronix, PO 500, Beaverton OR 97077 (503)-627-4052
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