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Abstract:
It is shown that the precession of a gyroscope can be used to elucidate the nature of the smoothness of the null infinity of an asymptotically flat spacetime (describing an isolated body). A model is proposed for which the effects of precession in the non-smooth null infinity case are of the order r-2ln r. In contrast, in the smooth version the effects are of the order r-3. This difference should provide an effective criterion to decide on the nature of the smoothness of null infinity.
