• ThePyroPython@lemmy.world
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    19 days ago

    May I present to you, how to measure like a Brit

    Flow chart showing the uses for metric and imperial in the UK

    It’s great fun especially when you’re trying to work out how fuel efficient your car has been when your tank and fuel pump is in litres and the fuel efficiency is in miles per gallon.

    Oh and you’ll have a jolly time following a recipe from more than 20 years ago trying to remember what the hell “Gas Mark 4” is in centigrade for fan or convection ovens.

    Oh and my personal favourite for the industry I’m in: when designing a PCB your component sizes will use imperial codes, your wire diameters will be in AWG, your track widths and PCB dimensions will be in millimetres, but your copper thicknesses will be in ounces despite the final weight for the assembly will be in grams.

    • addie@feddit.uk
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      19 days ago

      Bear in mind that the gallon we use is different from the US gallon, too:

      • a UK gallon is eight (imperial) pints of 20 fluid ounces, so 4.54 litres
      • a US gallon is 231 cubic inches, so 3.79 litres

      The reason that I thought American car fuel economy was so terrible as a child is partly because UK mpg is +20% on US mpg for the same car on the same fuel. But also, because American car fuel economy is so terrible.

      • bitwaba@lemmy.world
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        19 days ago

        Don’t forget that the UK fluid ounces are different (slightly smaller) than the US fluid ounces as well

        20 UK fl oz = 19.21 US fl oz

        • ZeffSyde@lemmy.world
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          18 days ago

          Holy crap, that’s why craft beer tall cans are different from 16oz tall boys here in the states. I’d always wondered why the were 19.2.

      • dankm@lemmy.ca
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        18 days ago

        It’s weirder when you look at Canada vs USA. Mileage here is usually written L/100km, but back in the day the cars were exactly the same but the mileage in Canada was better because the the US gallon is only ~83% the size of a proper gallon.

    • Psythik@lemmy.world
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      19 days ago

      Thank you for posting this. So sick and tired of people saying that GB switched to Metric.

      • Overshoot2648@lemm.ee
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        19 days ago

        This! That stupid map that just shows the US and Burma always annoys me. The US customary system includes Metric units. Canada and England still use Imperial/Customary. And “Metric” Is actually like 5 different systems with similar features like ANSI/ISO, KMS/CGS, and the three different pressure measurements.

        Natural units >>> Metric I want an alternative to Metric that uses base 12 units instead.

    • HowManyNimons@lemmy.world
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      19 days ago

      It’s because we’re stuck with a bunch of twats who can’t let go of the past. They’ll stick with Imperial measurements, mostly because the word looks like “Imperialist” and that’s the side they want to be on. Jacob Rees-Mogg is a wrought-iron dildo.

    • BluesF@lemmy.world
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      19 days ago

      The only part I disagree with is stone/pounds for people’s weight. Although we use stone, I’ve never heard someone use pounds… Maybe if you’re in Weight Watchers or something, but otherwise it’d be rounded to the nearest half a stone (e.g. 9 and a half stone)

    • rockerface 🇺🇦@lemm.ee
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      19 days ago

      Since volume is equivalent to metres cubed and distance is equivalent to metres (both multiplied by some conversion coefficient), I think fuel efficiency should be measured in metres squared, because why not.

    • bandwidthcrisis@lemmy.world
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      19 days ago

      A similar chart could be made for the US, proving that it does use metric: soda and wine bottles, medicine doses, eye-glasses measurements (in fact most medical things).

      I think that both systems are used in schools now.

      But then I see cooking instructions for a “cup of chicken strips” and a recipe having 1/4 cup of butter, and I wonder why anyone thought that volume was a good idea there.

    • marcos@lemmy.world
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      19 days ago

      your track widths and PCB dimensions will be in millimetres

      Not milli-inches? Is this a UK thing or have PCB design evolve since I last touched it?

      Anyway, milli-inches is one of the funniest unities I’ve used.

    • then_three_more@lemmy.world
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      19 days ago

      Short distances should be meters, feet, inches, millimetres.

      None of that fractions of an inch bollocks.

      And milk is often actually in litres and half litres, we just assume it’s in pints. Clever little bit of shrinkflation.

      • dejected_warp_core@lemmy.world
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        19 days ago

        Short distances should be meters, feet, inches, millimetres.

        American machinists go a different way altogether: thousandths of an inch. So no binary fractions, but still imperial-ish. :/

        And milk is often actually in litres and half litres, we just assume it’s in pints.

        That one makes sense.

    • Churbleyimyam@lemm.ee
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      19 days ago

      Yes. Calculating how much a car journey is going to cost is such a chore. Trip in miles ÷ mpg × 4.5 × £/litre of fuel = cost.

      • GreatAlbatross@feddit.uk
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        18 days ago

        I just assume I’ll do 45.45 MPG, then I’m pleasantly surprised when the fuel bill is lower than expected.

    • ikidd@lemmy.world
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      19 days ago

      You forgot that inside temperature is in Fahrenheit, outside is in Celcius.