km/s
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m/s is the best, everyone know aprox. what is an meter and an second to know the velocity, but not so easy with km and a hour… 50km/h seems slow, but not so 13 m/s.
Us joggers using min/km
That’s good and all. But we should go deeper.
For instance, what’s the conversion factor to planck lengths per unperturbed ground-state hyperfine transition of the caesium 133 atom (second) or maybe even per Planck time unit?
Why not just go with the universal and unitless proportion of “c”?
Or, for your slowpokes, parts per million or billion of “c”.
Or, for your slowpokes, parts per million or billion of “c”.
cc, or centiC
What about μc or nc, a bit umder 300m/s & 3m/s, respectively.
Microlights and nanolights. Love it.
‰ per mille (thousand).
Miles “Tails” Persecond
