Same. Screens and wheels are still 100% described in inches in sales.
Cars are specified with HP and optionally kW. Never kW alone.
Outside of these weird exceptions, it's SI all the way. And this doesn't really vary with age. The web site whrere you buy wheels and TVs doesn't know your age so it will say the rims or screens are 20" regardless of who you are.
There's more nuance to it though: if you take a closer look at fields where inch are used even in fully metric language environments you'll find that it's often more a class designation than a measurement. A 21 foot container does not exist (turns out that according to the wiki 20 foot containers aren't even allowed to be 20 foot long, they are 40/2 minus some defined amount of padding)
It's even more pronounced with camera sensors, the size given in fractions of an inch is some kind of "equivalent to", whereas the size in mm is the actual size. Apparently the image sensor inch is 16mm or something like that.
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
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").
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.
> 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.
Outside of these weird exceptions, it's SI all the way. And this doesn't really vary with age. The web site whrere you buy wheels and TVs doesn't know your age so it will say the rims or screens are 20" regardless of who you are.