There is a problem posed by critics of Special Relativity and often answered with unnecessary complexity by supporters: If, for example, Observer A standing on earth measures the speed of another Observer B on a spacecraft flying by as .9 x the speed of light, and if Observer B measures the speed of a second spacecraft, flown by Captain C passing her in the same direction at .9 x the speed of light, how can Observer A not measure C's speed as greater than the speed of light?
Preprint A brief and simple calculation of 3-body Relativity (relativ...