|MadSci Network: Physics|
I believe the reason we say mass does not increase with velocity is because, although its inertial mass increases, its gravitational attraction does not. But, also, isn't there a paralell of magnetism in gravitation for moving objects due to a length (density) contration? Is this phenomena the same as saying its gravitational mass has increased, or are inertial mass and gravitational mass only proportional by G at low velocities? but my real question is this: If the attration between two bodies does increase with velocity due to gravi-magnetism, this attraction is parallel to an increase in kenetic energy. And since E=mc^2, all mass is potentially electromagnetic energy even at rest. I have not heard this connection explored and wondered if there is a greater body of thought out there which connects gravitation and energy (electromagnetic and otherwise). It seems that somebody must be exploring this to try to connect relativity and the electromagnetic force but i can't find anything about it.
Re: does gravity attract energy?
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