• Emi@ani.social
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    5 days ago

    Do americans actually do math with imperial system at school? That must be a nightmare and have conversion errors between units.

      • CybranM@feddit.nu
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        4 days ago

        So the most American things in America are using the least American measurement system?

      • Warl0k3@lemmy.world
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        3 days ago

        It’s a pretty heavy mix, many of the most popular rounds are also referenced by their metric size but they’re not usually ‘useful’ sizes in either standard or metric.

        For example:

        • .22 LR = .223in = 5.56 NATO
        • 9mm = .357 mag
        • .40 S&W = 10mm Auto
        • .308 = 7.62mm
        • .44 = no common metric eq.
        • .45 = no common metric eq.
        • .50 = 12.7mm
    • ryathal@sh.itjust.works
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      4 days ago

      There’s almost never a need to involve units outside of science which typically is metric anyway. Also most of these units aren’t really ever converted between, no one gives a measurement as 1 mile 300 yards 2 feet 6 inches.

      • [object Object]@lemmy.world
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        3 days ago

        no one gives a measurement as 1 mile 300 yards 2 feet 6 inches.

        When this topic came up yet another time previously, USian engineers proudly chimed in saying that their software accepts any kinds of units and converts between them as needed, so they put in US units without bothering about whether metric units are used elsewhere in the project. Ergo, someone does in fact give measurements like in your example.

        • Warl0k3@lemmy.world
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          3 days ago

          I have very occasionally seen measurements given in yd + in or yd. + dec ft. I have never once seen measurements given in any of yd + ft + in, mi + yd, mi + yd + ft and definitely never in mi + yd + ft + in. That would be like giving a measurement in km + dm + cm + mm, there’s just no reason to do it. Any cad software I’ve ever used is capable of handling mixed units because it’s trivial to implement, but I would be willing to bet it’s one of the most underutilized features.