I most definitely grew up with km/h, not kph. "k" is not an acceptable way to abbreviate kilometer in a world where kilograms are used.

Curious what you're doing that "kilograms per hour" might get used by normal people in everyday conversation. Fast food restaurant or a weight loss clinic?

The whole point of SI units is to not live in a world of uncertainty, ad hoc terminology, and name collisions.

Yeah, the people insisting on writing those are on the wrong.

Agreed but we do have to interact with them. I once tried to sell a car with 140 Mm and got nowhere. I then changed the add to 140_000 km and got a lot more interest.

My interdental brushes claim that the wire is 0.8 megamolar wide, which is not a normal measure of width.

I wonder if the international society of dentists keeps a standard molar in a safe somewhere

It is probably an indication that they should fix their caps lock keys, however. Like the guys who sells bottles with volumes in ML.

That would be 4.82x10²⁹ somethings wide.

> My interdental brushes claim that the wire is 0.8 megamolar wide, which is not a normal measure of width.

0.8 megamolar = 800,000 teeth? That, uh, seems pretty wide for an interdental brush.

0.8 Mmol?

0.8 MM

The symbol for molar is just the "M". "mol" denotes the Avogadro constant.