In my prior Post, I have discussed the present scientific view on the relativity of simultaneity and more specifically the misstatement: “the actual one-way speed of light (in vacuum) equals the constant ‘c’ in every inertial frame of reference”. I have shown that Einstein chose it as a very convenient convention and that it is in fact the best convention to choose – it makes the physics “as simple as possible, but not simpler”. In this delivery of Cosmic Engineering, I want to discuss an equally common misstatement about the actual tick rates of clocks in relative inertial motion.

Relativity 'controversy' 2 “The actual tick rates of clocks in relative inertial motion in free space are necessarily different”. The correct interpretation of the facts is that for clocks moving inertially in free space, it is impossible to determine any tick rate difference, because they can only meet once. In order to compare tick rates, one of the two cl...

[ continued ]