In this paper published in the American Journal of Physics I show how, using Fermi coordinates, it is possible to emphasize the effects of a plane gravitational wave (GW) on test masses using an analogy with classical electromagnetism. In other words, the gravitational field can be expressed in terms of gravito-electric and gravito-magnetic fields. In doing so, I also show that there is magnetic-like force acting on moving test masses and on spinning ones. I think this approach can be useful to teach, by analogy, the physical effects of GWs.
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…obviously, it is totally unnecessary!
