On Friday, February 22, 2019 at 4:40:31 PM UTC-6, [email protected] wrote: > > > > On Friday, February 22, 2019 at 1:34:31 PM UTC-7, Brent wrote: >> >> >> >> On 2/21/2019 10:47 PM, [email protected] wrote: >> >> >>> >> *Even if gravitons are detected, and they account for "force" consistent >> with the other three forces, wouldn't there remain the task of changing the >> form of gravity to make it covariant? AG* >> >> >> Gravitons, as quanta of the metric field, are already relativistic >> particles and covariant. >> > > *I thought it's the equations of motion for the particular force, not the > mediating particles, that must be covariant. On a related topic for this > thread, where does GR depart from Mach's principle? That is, what did > Einstein implicitly (or explicitly) deny about Mach's principle? TIA, AG * > >> >> *Would that require tensors? AG* >> >> General relativity is covariant, and curvature is expressed according to Riemann tensors.
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