Measured speed versus true speed
Israel Perez

TL;DR
This paper compares theoretical predictions and experimental thought experiments regarding the one-way and two-way speeds of light, suggesting only one inertial frame has an isotropic one-way light speed and exploring how to determine true speeds.
Contribution
It demonstrates, through a gedanken experiment, that the one-way speed of light can vary with frame velocity, challenging the assumption of isotropy in all inertial frames.
Findings
Two-way speed of light is constant across inertial frames.
Only one inertial frame has an isotropic one-way light speed.
Method to determine true speeds of entities and frames is proposed.
Abstract
The theoretical predictions, derived from the Lorentz and the Tangherlini transformations, for the one-way speed of any physical entity are confronted with the corresponding expressions for the one-way measured speed obtained from a gedanken experiment. The experiment demonstrates that, for an inertial frame in motion relative to an inertial frame where the one-way speed of light is isotropic, even the special theory of relativity renders the one-way speed of light as function of the velocity of in agreement with the Tangherlini transformations. However, the two-way speed of light remains constant for all inertial frames, in agreement with the two-way experimental techniques. This implies that there must exist \emph{one and only one} inertial frame where the one-way speed of light is isotropic. These investigations also show how we can determine, with certain restrictions,…
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Taxonomy
TopicsRelativity and Gravitational Theory · Geophysics and Sensor Technology · Experimental and Theoretical Physics Studies
