• OldWoodFrame@lemm.ee
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    11 months ago

    Technically the metric system is “the preferred system of weights and measures for United States trade and commerce” as per the Metric Conversion Act of 1975.

    You’re just also allowed to use lbs and feet and stuff and most people do.

    • CarbonIceDragon@pawb.social
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      11 months ago

      The versions of imperial measurements the US uses are even defined in terms of metric units, so they’re less a completely separate measurement system these days and more just a weird facade on top of metric, even.

    • 👍Maximum Derek👍@discuss.tchncs.de
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      11 months ago

      Regan also never bothered to reinstate Imperial standards at the bureau of weights and measures (because it would have cost a small fortune). So our units are officially defined by the their metric counterpart. Legally speaking an inch is 2.54 centimeters.

    • Bye@lemmy.world
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      11 months ago

      And in the sciences and drug dealing and the military, we use metric exclusively.

      But for some idiotic reason, construction engineers often use imperial units and I have no idea why. Like buildings are built in pounds and feet and stuff, with half inch bolts and 2x4 (ish) lumber and half inch plywood. It’s idiotic.

      • randomwords@midwest.social
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        11 months ago

        I don’t generally defend imperial, but feet and inches are actually really useful in construction. Base 12 is easily divisible by 2, 4, and 3. You often need to divide architectural elements in thirds.

        • GrumbleGrim@discuss.tchncs.de
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          11 months ago

          As a former structural engineer who lived on a Jobber 5 all day, that’s still pretty niche overall. Easier because it’s what your used to maybe, but outweighed by situations where it’s not. Try doing trig with fractions and then tell me imperial is better.

          • bleistift2@feddit.de
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            5 months ago

            Does it matter whether you punch 3/8 or .375 into a calculator? Don’t tell me you calculate stuff by hand…

          • bloodfart@lemmy.ml
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            11 months ago

            Trig is literally the math where you start dividing a circle in fractions and doing the math in base 360.

            What the hell are you talking about?

            • GrumbleGrim@discuss.tchncs.de
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              11 months ago

              I’m talking about trig using feet and inches. You know, rise, run, slope… Have you ever used trig outside of school? I don’t understand what you’re confused about.

              • bloodfart@lemmy.ml
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                11 months ago

                right now i use it for waves and reflections. that’s all fractions and degrees. before it was machining and tbh for me that was faster to go to the book for the answers than calculate everything out.

                truly trigonometry is a land of contrasts.

        • yA3xAKQMbq@lemm.ee
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          11 months ago

          That might be somewhat useful if it was consistently applied, which it is not.

          And it’s maybe useful for fractions, but how many feet are in a mile again? 5280? A square yard is what now… 1296 square inches?! Who the fuck is supposed to memorize all that?

          What’s a 1/4 square yard in square inches?

          That’s not easy, that’s putting the mental into mental arithmetic.

          • randomwords@midwest.social
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            11 months ago

            Again people making me defend imperial, I think metric is better.

            I see this argument all the time, converting between these units is hard cause the numbers are weird. You have to stop thinking about imperial as a system, it’s not. No one should convert miles to feet, they are not intended to measure on the same scale.

            None of the conversions are easy because imperial is just a random collection of units that were being used to measure different things.

            • yA3xAKQMbq@lemm.ee
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              11 months ago

              Yeah, no one should be able to make a quick sanity check for things that span multiple powers.

              • “Hey Bob, we have 5000 of those 78 ft rails, that enough for the 100 mile railroad?”

              • “What do I look like, a fucking calculator?”

              vs

              • “Hallo Heinz, how mäny hecto-liter do ve kneed für 1000 0.5l bottles of Bier?”

              • “20, boss.”

              The amount of people going completely out of their way to die on their little cubic ft hill actually defending they’re incapable of easily and consistenly calculating units is just utterly ridiculous. “Nobody should be doing this!!!1!”

              No, wait, the people in here telling people that “dozenal” is superior, but not realizing they’re not using a “dozenal” system at all, they’re just counting to twelve in decimal. Those are also making me question whether humans actually went to the moon…

              • randomwords@midwest.social
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                11 months ago

                Keep putting those words in my mouth. I’m not dieing on any hill, just trying to provide some context about why imperial is so weird. I still think metric is better.

                You seem really upset about something that really doesn’t matter that much, are you okay?

                • yA3xAKQMbq@lemm.ee
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                  11 months ago

                  Did I mention you specifically when I said „the amount of people…“? See.

                  And if it doesn’t matter much to you, why do you keep commenting? Nobody’s „making“ you defend anything. Are you okay?

  • johnthedoe@lemmy.ml
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    11 months ago

    When I find a wood working video on YouTube from the states it blows my mind how anyone can not just adopt metric “This is 5” 4/57 and we need to cut it to 5” 5/45 and a half” bzzzzzzz.

    • PRUSSIA_x86@lemmy.world
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      11 months ago

      I may be biased, but I think it kinda makes sense. All the fractions are really just powers of two:
      One half
      One quarter
      One eighth
      One sixteenth
      One thirtysecond
      etc.

  • 1rre@discuss.tchncs.de
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    11 months ago

    Those aliens have 3 fingers. A decimal system to them is like a system based on 14, 196, 2744, 38416, … would be like to us - probably worse than US Customary

    • geissi@feddit.de
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      11 months ago

      14, 196, 2744, 38416, … would be like to us - probably worse than US Customary

      I mean if they had a base 14 numerical system then a base 14 measurement system would make perfect sense.
      Contrary to that, the US does use a decimal system for numbers while the various units in the US customary system do not have any common base.

    • lolcatnip@reddthat.com
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      11 months ago

      There’s no good way to predict what base they’d actually use for their numbers, but there’s definitely nothing about 10 that makes it an obvious choice for an inter-species standard line the comic implies.

      • 1rre@discuss.tchncs.de
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        11 months ago

        3, 6 or 12 would be overwhelmingly likely though, inferring from all documented human language families

  • assassin_aragorn@lemmy.world
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    11 months ago

    I find imperial vs metric to be a question of practicality vs ideality, and as an engineer I tend towards the former. Either way it doesn’t really matter, because unit conversions are easy math, and a good engineer can work in any unit system.

    In defense of imperial, to balance things out here:

    • I almost never need to go from inches to feet to yards to miles. Conversions like that play almost no role in my daily life. Easily going from mm to cm to m to km is a solution in need of a problem.

    • Because imperial isn’t bound by a constant conversion factor, you can use several points of reference. An inch is about the size of one knuckle. A foot is roughly the size of… A foot. Most of the time, I don’t need anything more than this. Although to be fair, I rarely need this even. Smaller than an inch is all metric though, easily.

    • Imperial is sometimes more convenient. Twelve seems like an usual number for inches to feet, but twelve is also easily divisible by 2, 3, 4, and 6. I can instantly convert from fractional feet to inches for the most common fractions.

    • I’m going to say it, both temperature scales make sense. Celsius being based on water makes a lot of sense, it’s the most ubiquitous substance. Fahrenheit makes sense too in terms of climate and the weather that people experience – it’s harder to go more simple than 0 = very cold and 100 = very hot.

    • Conversions actually aren’t universally good for metric. Joules are great for abstract concepts, but not so much more realistic matters. The energy required to raise 1 g of water by 1 deg C is 4.184 Joules – or more simply, 1 calorie. Calorie is actually neither imperial nor metric. Metric here loses the intuitiveness of water, while SI takes a big W. Another example, mass and weight. In metric, 1 kg is 9.8 Newtons. Most places don’t bother with Newtons and stick to kg. In imperial, 1 pound mass is 1 pound weight. They have been set equal to each other by definition. Mass to weight calculations will always be much easier in imperial, and that’s rather nice for looking at chemistry and flowrates and equipment requirements.

    • Imperial is better for K-12 education, another unpopular opinion. It requires children to learn going from inches to feet to yards, which uses math far more regularly than metric does. For lengths, it’s great for teaching fractions. Unit conversions between systems are taught often, which gives students a basis when you’re converting other units, like moles and kilograms in chemistry.

    • It teaches you to always label your fucking units. It’s incredibly bad engineering practice to do this, even if you work solely in one unit system, because you almost certainly aren’t using just one unit. Hell when it comes to pressure, with kPa, psi, atmospheres, and bar, it really doesn’t matter what unit system you’re using.

    • Metric defines some units in a way that’s good for science but bad for everyday life. A pascal is 1 newton of force per square meter. Our atmosphere is 101,125 Pascals. You see kPa used constantly because the defined unit is absurdly small. The same goes for a Joule, it’s the work done to move a 1 newton object 1 meter. Chemical reaction energy is measured on the basis of kJ per mole (or kg). The defined unit is really small.

    TLDR: Convenience + Practicality vs Ideality + Logic

      • assassin_aragorn@lemmy.world
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        11 months ago

        Yeah it’s disappointing. Several weeks ago, it would’ve been upvoted not because people agreed with it, but because it contributed to a thoughtful discussion. I’m an engineer. I’ve probably had to explicitly consider and think about units more in a year than most people here have in their lifetimes.

        I just can’t wrap my head around this thread. You’d think Americans were math geniuses by age 12 with how hard they’re making this out to be.

  • Gleddified@lemmy.ca
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    11 months ago

    Base 12 is way more logical than base 10, I bet aliens would think we’re stupid for counting in base 10 just because we have 10 fingers, my opinion on this is infallible fight me

  • ScrivenerX@lemm.ee
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    11 months ago

    Outside of school I don’t think I’ve ever had to convert feet to miles or yards to miles.

    • Hazdaz@lemmy.world
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      11 months ago

      Using both is the worst solution there is.

      You will constantly be switching back and forth and many of times using both at the same time. As an engineer who designs things built around the world, the most frustrating thing isn’t when it is built in the US and it is (almost) all Imperial. It also isn’t when it is built in Europe and everything is all Metric.

      No, by far the most frustrating thing is when it is built in Mexico and our local teams have better access to Imperial raw material, but the local workers measure everything in metric. Such a damn mess - you have steel that is 1/2" thick, for example, but since it is Mexico we dimension it out to 12.7 mm, so nothing is ever a nice round number. And most threads are metric, but you can’t get all components in metric, so on the same piece of equipment you could have an M10x1.25 bolt and a 3/8-16 bolt.

  • bastian_5@sh.itjust.works
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    11 months ago

    It’s not entirely without logic. Base 12 is actually better that base 10 for a start, as it allows for a lot more fractions that have clean representations, so 12 inches in a foot is fine. The next thing is that people seem to think we have all of these strange units with strange conversions, when in reality we have 3 units for short distances, and then a seperate unit for long distances. 12 inches in a foot, 3 feet in a yard, and then nobody cares how long a mile is in terms of feet or yards. Once you realize that the mile is not even really part of the same measuring system as inches, feet and yards, the weird conversion makes sense. We exclusively use miles to talk about long distances above 0.1 miles, and then yards are used below 500 yards (which has an overlap of 324 yards). And then for the logic, it is entirely based on actual human scale shit. A foot is called a foot because it is roughly the size of your foot. A yard is approximately how long one stride is. Saying something is 100 yards away means it is approximate 100 steps away. Obviously there will be a bit of variance for how accurate that will be for any given person (and children will have to base it off of an adult obviously), but because it is based more on human things it is more useful for measuring human scale things. It was designed to not use decimals or large numbers because humans don’t comprehend those very well.

  • Alien Nathan Edward@lemm.ee
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    11 months ago

    Everyone focuses on why learning metric would be better in the first place, and they’re right. No one has come up with a good argument for me to throw away all of my measuring tools, convert all my recipes and relearn an entirely new system when the system and stuff I have works for me now.

    • Squirrel@thelemmy.club
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      11 months ago

      Because otherwise it will be difficult to live in a country that has converted to metric, presumably. While I’m not pushing for us to change to metric (even though I know it would be good), I suspect the change would be fairly easy to adjust to.

      • Alien Nathan Edward@lemm.ee
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        11 months ago

        it would be difficult to live somewhere that uses metric

        In the absence of any plans to do that, what’s the advantage of converting?

  • Orphie Baby@lemmy.world
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    11 months ago

    Every time anyone talks about this, I feel obligated to inform them: there’s also a counting system that’s not based on ten, and it’s way superior. Do people know about it? Most don’t. The Wikipedia page stupidly calls it the “ten-plus-two” system, and there have been heated arguments there with the dumbasses who refuse to change it to the logical name. That’s how stupidly-biased people are towards the ten-based system.

    You make a “metric” measurement system based on 12-based counting and then everyone wins. Everyone. It’ll never happen of course.

  • quinkin@lemmy.world
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    11 months ago

    Ah nice, this should be a constructive dialogue between open minded and empathetic individuals.

    grabs popcorn

  • joel_feila@lemmy.world
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    11 months ago

    how about we all agree that the best system is american units with metric prefixes. After all it is obvious that it takes an hours to drive 318 kilofeet