4 ms·

Calories, grit, carats (for diamonds), Beaufort, viscocity is of ten boven in cP, grit (based on inches), dernier, rpm, dpi, lightyears, and of course km/hr. Pl

Calories, grit, carats (for diamonds), Beaufort, viscocity is of ten boven in cP, grit (based on inches), dernier, rpm, dpi, lightyears, and of course km/hr. Plenty of non-SI units in use

alkonaut 5y ago
Yes. I meant metric and sloppily said "SI" despite most common metric units only occasionally being SI. Beaufort is a dimensionless label as far as I'm aware and grit is used as such too (i.e. it never says anything else than "240" i.e. it doesn't "240 grit" or "240 something per inch").
- elsjaako 5y ago
  Grit is based on the amount of particles that fit through an inch square. You could also indicate it with the particle size inmicrometers. My list wasn't close to exhaustive. We use all kinds of weird units. Besides bar I sometimes see mmHg for pressure. Shoe sizes. I've never seen acceleration in m/s2 outside a physics problem, otherwise it's either G or seconds to 100 km/hr.
  - alkonaut 5y ago
    > We use all kinds of weird units. > Grit is based on the amount of particles that fit through an inch square. I'm aware. But I'd say its mostly used as a dimensionless. When I argue "we use metric except for these few" I mean in the cases where the unit (a length, mass, pressure etc) is actually uttered or written. In some cases as you note there are labels which have non-metric definitions underneath, such as sand paper particles having a never-pronounced inch definition. The same goes for some weapon calibers where you might say a ".303 cartrige" for rifle ammunition but you'd never say a ".303 inch cartidge". A lot of people probably use these labels without knowing they are using an imperial definition. And that (I'm guessing) is also part of why it survived the metrification. > I've never seen acceleration in m/s2 outside a physics problem, otherwise it's either G or seconds to 100 km/hr. "10s to 100km/h" is as metric as m/s2 though (But again not pure SI). g being a constant obviously has no explicit unit, it's as metric as you want it to be :) I hear "5g" as 5x9.82m/s2 but an american probably hears something else.

Calories, grit, carats (for diamonds), Beaufort, viscocity is of ten boven in cP, grit (based on inches), dernier, rpm, dpi, lightyears, and of course km/hr. Plenty of non-SI units in use

alkonaut 5y ago

Yes. I meant metric and sloppily said "SI" despite most common metric units only occasionally being SI. Beaufort is a dimensionless label as far as I'm aware and grit is used as such too (i.e. it never says anything else than "240" i.e. it doesn't "240 grit" or "240 something per inch").

elsjaako 5y ago
Grit is based on the amount of particles that fit through an inch square. You could also indicate it with the particle size inmicrometers. My list wasn't close to exhaustive. We use all kinds of weird units. Besides bar I sometimes see mmHg for pressure. Shoe sizes. I've never seen acceleration in m/s2 outside a physics problem, otherwise it's either G or seconds to 100 km/hr.
- alkonaut 5y ago
  > We use all kinds of weird units. > Grit is based on the amount of particles that fit through an inch square. I'm aware. But I'd say its mostly used as a dimensionless. When I argue "we use metric except for these few" I mean in the cases where the unit (a length, mass, pressure etc) is actually uttered or written. In some cases as you note there are labels which have non-metric definitions underneath, such as sand paper particles having a never-pronounced inch definition. The same goes for some weapon calibers where you might say a ".303 cartrige" for rifle ammunition but you'd never say a ".303 inch cartidge". A lot of people probably use these labels without knowing they are using an imperial definition. And that (I'm guessing) is also part of why it survived the metrification. > I've never seen acceleration in m/s2 outside a physics problem, otherwise it's either G or seconds to 100 km/hr. "10s to 100km/h" is as metric as m/s2 though (But again not pure SI). g being a constant obviously has no explicit unit, it's as metric as you want it to be :) I hear "5g" as 5x9.82m/s2 but an american probably hears something else.