2022-01-08 18:02:48 UTC
Time to get down to brass tacks, Bodkin. But first some preliminaries.
1) Bodkin, my boy, consider a Universe with only two object: Bodkin and Pat. Bodkin and Pat are what philosophers term in motion wrt each other, and directly towards each other. We shall stipulate that this motion, comprised of its direction and magnitude, is the "closing velocity" for Bodkin and Pat.
2) We shall denote the closing velocity as "v" and further stipulate that Bodkin and Pat agree on the numerical and dimensional units of v. In other words, Bodkin and Pat agree on |v|.
3) Lastly, we agree that this closing velocity, v, is the same v used in the Lorentz transforms.