Re: Gravitomagnetism & Nano?


Oscillating masses can also produce gravitational waves which could, in
theory, be used for propulsion. The problem is that in order to make
waves of reasonable strength, masses must be oscillated with incredibly
high frequencies (in the GHz or above), in a coherent way. This will be
a formidable technical problem.

Natural sources of GW's that are detectible in principle (none have yet
been detected) have masses on the order of several solar masses, but
the frequencies are in the 1-1000HZ range. Note that the power of a GW
scales as frequency raised to the *seventh* power, and they are
naturally extremely weak owing to the small coupling between gravity
and mass.


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