Minkowski spacetime parallax uses the shifting plane of simultaneity (POS), an accelerating inertial reference frame (IRF), while referencing a distant signal (such as pulsar) with regularly recurring intervals. The distance signal's source can be derived from Lorentz transfer equations and rate at which intervals are changing, due to (POS) during acceleration. advantage this method measuring i...

The simultaneity framework describes the relativistic interaction of time with space. two major proposed frameworks are differential simultaneity, in which is offset distance “moving” or rotating frames for each “stationary” observer, and absolute not distance. We use Mansouri Sexl test theory to analyze absence spacetime curvature. has four parameters. Three parameters describe effects. fourth...

Starting from the experimental fact that light propagates over a closed path at speed c, we show to what extent the isotropy of the speed of light can be considered a matter of convention. We prove the consistence of anisotropic and inhomogenous conventions, limiting the allowed possibilities. All conventions lead to the same physical theory even if its formulation can change in form. The mathe...