Re: SI
"I don't ever recall hearing "Captain's Log, 13th of June..." after all. ;)"
Actually, the reboot of Star Trek starting with the 2009 movie DOES do that. The rebooted Stardate is simply <Gregorian Year>.<Day of Year starting from 1>.
As for why mks, it seems there IS some natural coherence between the units, particularly when you mesh electrical phenomena to physical ones. In fact, this is why the kilogram was used versus the gram: the relationships didn't fit with the g but did with the kg. In fact, modern science notes a lot of interrelation between mass, energy, and time. That's one reason for the redefinitions. With the second defined as it will be, one can redefine the kilogram in terms of the Planck constant (which uses time), redefine the ampere in terms of the elementary charge (which uses time), and redefine the Kelvin in terms of the Boltzmann constant (which uses time, mass, and distance which is unchanged).
As for why cesium, it's easier to measure and more consistent than hydrogen.
Biting the hand that feeds IT
