The CIPM has, since 1980, defined the metre by the light time of flight giving units for space of time in seconds. So, we must ask ourselves, what are the units of time itself if space is to be defined in units of time, because space and time are definitely not the same thing? The answer to this apparently great puzzle turns out to be utterly trivial. The concept of time as being a dimension of the Universe that moves forward is useful in classical mechanics but nonsense in terms of the realities observed with experiments in quantum entanglement. The answer is that history moves backwards into a dimension that we can describe mathematically as being the imaginary historic depth of the emitter in units of i-seconds. This leads to a new theory of physics explaining Quantum-Relativity (qr). I can refer to this new physics as qr-physics. In qr-physics, we must always refer to the "apparent-wave-velocity" rather than the "speed-of-light." Light jumps in quanta from the historic emitter, into the present detector or reflector; from the quanta's notional perspective, instantly. This presents merely the illusion of waves with an apparent-wave-velocity. The apparent-wave-illusion is a reflection of rotational effects that were actually taking place, only within the historic emitting aerial body. Understanding radio ground waves requires the qr-electron-space model and that is not even covered in this starter’s course material at all, only the proton is covered. Get the proton-space model (the matter-space model) right, and then all the rest is just “a walk in the park.