After setting foot on the Moon, the next destination for humankind is Mars, which presents a whole new set of challenges in speedy, long-distance space travel.
After setting foot on the Moon, the next destination for humankind is Mars, which presents a whole new set of challenges in speedy, long-distance space travel.
I see it quite simplistic: if it isn’t listed as SI unit by the BIPM it isn’t one.
Lending a helping hand on how to deal with derived units (e.g. km/h) doesn’t mean those derived units are endorsed as SI units.
But that’s just my point of view.