One can no nothing about the magnetic force and yet arrive at it by taking the relativistic effects of a current and a moving charge system into account. I ask whether there exists such an inherent force in case of gravity.
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Einstein's theory of gravity is already relativistic so I think that what you're asking is this: beginning with Newtonian gravity and making an analogy with Coulomb's law (where mass is analogous to electric charge etc.), and taking into account special relativity effects of a (mass) current etc., does the analog of magnetic force pop out? The answer is: yes. However and unfortunately, the gravitational waves that also pop out, analogous to electromagnetic waves, transport negative energy. |
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There is a set of such forces that commonly known as gravitomagnetic forces: http://science.nasa.gov/science-news/science-at-nasa/2004/19apr_gravitomagnetism/ http://apod.nasa.gov/apod/ap110510.html http://en.wikipedia.org/wiki/Gravitomagnetic_field (I doubt though why the Wikipedia currently uses non-common name though). |
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