Finding:

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   Gravitomagnetism

   Gravitomagnetism (sometimes Gravitoelectromagnetism, abbreviated GEM), refers to a set of formal analogies between Maxwell's field equations and an approximation to the Einstein field equations for general relativity, valid under certain conditions.
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   Speed of gravity

   In general relativity, however, (similar to the field theories above), gravitomagnetism effects cancel out the effects of aberration.
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   Frame-dragging

   More generally, the subject of field effects caused by moving matter is known as gravitomagnetism.
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   Modern geocentrism

   The fictitious forces are then a manifestation of the gravitomagnetism associated with the acceleration of the mass of the universe.
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   Gödel metric

   The vanishing of the second invariant means that some observers measure no gravitomagnetism, which of course is consistent with what we just said.
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   Heim theory

   A similar (though opposite, in that the Cooper pairs actually weigh more than predicted by general relativity) result has been confirmed as of March 2006 by recent and extensive studies carried out by the European Space Agency, and the results do not correlate with the gravitomagnetism, that is predicted by general relativity, by several orders higher in magnitude. (see ESA report at and paper at )
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   Artificial gravity

   In 2006, a research group funded by ESA claimed to have created a similar device that demonstrated positive results for the production of gravitomagnetism, although it produced only 100 millionths of a g.
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   Linearized gravity

   Gravitomagnetism
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   Apache Point Observatory Lunar Laser-ranging Operation

   Current tests measure geodetic precession to a 0.35% level of precision, gravitomagnetism at the 0.1% level, and checks whether gravity behaves as 1 / r2 as expected.
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    Martin Tajmar

    Gravitomagnetism research

Explore the following pages on Powerset:

• Gravitomagnetism,
• Speed of gravity,
• Frame-dragging,
• Modern geocentrism,
• Gödel metric,
• Heim theory,
• Artificial gravity,
• Linearized gravity,
• Apache Point Observatory Lunar Laser-ranging Operation,
• Martin Tajmar