• MIDItheKID@lemmy.world
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    1 day ago

    There was something I read once upon a time that was like:

    F is how hot/cold people are C is how hot/cold water is K is how hot/cold matter is

    I feel like that’s pretty accurate.

  • voldage@lemmy.world
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    2 days ago

    0 C being the temperature water freezes is useful for knowing if there is ice outside, which has practical use. If we keep going the way we are, soon 100 will be an indicator that there is no water outside. Practical if you’re a hydrophobe or hydrophile.

  • prodaccess@lemmy.world
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    1 day ago

    I got used to Celsius while living abroad in Europe and Japan and prefer it to Fahrenheit. The extra granularity of the latter scale doesn’t really add much more utility.

    However, while 32 F and 212 F are pretty arbitrary, so is calibrating to the freezing and boiling temperatures of water. I’d rather have a scale that’s calibrated to humans rather than H2O.

  • Smoogs@lemmy.world
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    2 days ago

    Soon it won’t matter anyways. Isn’t AmericaUS like…done now? We can move on with our normal shit and chuckle at it like a museum piece.

  • Melllvar@startrek.website
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    2 days ago

    The one thing that bothers me about the metric system is how much of it is never actually used. No one says “1 megameter”, for example. They say “1,000 kilometers”. When you think about it, most metric prefixes are never used with most metric units.

      • la508@lemmy.world
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        2 days ago

        We use decimetres in chemistry a fair bit. 1 mole of any gas will occupy 24 dm³ at rtp

      • calcopiritus@lemmy.world
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        2 days ago

        “deci” is very popular. Just not in the “correct” form “decimeter”.

        In Spanish it’s normal to say “8 décimas”, which means 8 tenths. It is context dependent though. For example if speaking in a context where millimeters are used, it will be 8 tenths of a milimiter. That is, 0,8mm.

        But yeah, it is very uncommon to use deci and deca. Because they’re just not very useful. We are used to 2 digit numbers, or numbers with 2 decimal places. So 87m is not harder to use than 8,7dam.

        It’s probably also the reason there is no prefix between kilo and mega, or milli and micro. (They are x1000 increments instead of x10).

        For the same reason, when in a context of millimeters, it’s preferred to say “87mm” instead of “8,7cm”.

    • Bilb!@lemmy.ml
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      2 days ago

      I’ve thought that was weird too. Decimeter’s seems like a good unit for measuring a person’s height, for instance.

    • Holytimes@sh.itjust.works
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      2 days ago

      It’s because metric sucks at anything on a human scale and most people deal with things on a human scale. Imperial was developed over hundreds of years to be extremely narrow and scope in a specific two things at a human scale.

      It’s a big reason why imperial makes far more sense. If you actually need to talk about anything on a human scale, everything no matter how nonsensical makes sense the moment, it’s explained because it’s all extremely intuitive.

      While metric is basically a tiny fraction of a technically Superior system that basically makes no f****** sense in 99% of cases for a day-to-day life.

      Try metric is the measurement of science, engineering and other fields of study because they actually do with things outside of day-to-day human scope

      As the saying goes, use the right tool for the right job and only a dumb f*** uses the wrong tool for the wrong job

      • Deme@sopuli.xyz
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        2 days ago

        Could you give an example of a situation where metric makes less sense than imperial? I will then explain to you that it only appears to you like that, because those are the units you’ve lived your whole life using. Without that baggage, the adaptability and easy conversions make SI-units objectively superior in every situation.

      • thebestaquaman@lemmy.world
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        2 days ago

        I have no idea what you’re talking about… humans are around 1-2m tall, weigh about 40-80kg, have a body temperature of about 37 C, and need to drink a couple litres of water per day. How are these units not the proper order of magnitude for measuring things “on a human scale”?

    • Tiger_Man_@szmer.info
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      2 days ago

      should be french flag because the metric system originates from france and now its used everhwhere except myanmar, us and liberia

      • ReluctantMuskrat@lemmy.world
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        2 days ago

        Except 5km is not 3 miles… it’s 3.1069 miles so off by a considerable factor. 1 mile = 1.6km is a much more accurate approximation that’s easy to remember.

        • Knightfox@lemmy.world
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          1 day ago

          That’s 4%, that’s not a significant amount for functional purposes and it’s a whole number to whole number conversion. Most of the time, if I’m converting, it’s from metric to imperial so 1 km is 0.62 miles. If you tell me the speed limit is 70 km/h it’s way easier for me to calculate 70 ÷ 5 x 3 = 42 mph than to calculate either 0.62 x 70 or 70 ÷ 1.6 = 43.49.

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

      I had an American explain “well you just know that 68 is long sleeve warm, 80 is shorts” or something, as if people cannot memorize that 18 is chilly and 21/22 is usual room temperature, 26 is shorts.

      The only thing I dislike like about Celsius is that my thermostat supports both, but doesn’t allow half degrees Celsius, so it provides less granular control in Celsius than if you set it to Fahrenheit.

      • otter@lemmy.zip
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        3 days ago

        As you approach 0°F it is getting dangerously cold. As you approach 100°F it’s getting dangerously hot. Celsius is obviously better scientifically, but fahrenheit is pretty reasonable for everyday use (unlike other imperial measurements).

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

          Really my point is you can memorize new numbers when you look at the weather report.

          When I go (went ) to the US it was not obvious to me looking at the weather in Fahrenheit what it would feel like.

          • otter@lemmy.zip
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            3 days ago

            Of course. I’m just adding that there is some logic to fahrenheit in day to day use.

        • yetAnotherUser@discuss.tchncs.de
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          2 days ago

          0°F is way colder than 100°F is hot.

          There are hardly any population centers that reach the lower temperature while there’s a shitton of them that reach the hotter one. That should say enough about how dangerous and inhospitable each is.

          • SystemDisc@piefed.world
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            2 days ago

            That’s not true. NYC frequently reaches 0°F and is home to 15 million people. All of northern US, and all of Canada frequently reach 0°F. It’s a fact than anything below 0°F is actively dangerous and anything above 100°F is actively dangerous.

    • GalacticSushi@piefed.blahaj.zone
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      3 days ago

      Most metric units are designed around water in some way. Very easy to convert to different units because of this. 1mL of water is equal to 1g of water which is equal to 1 cubic cm of water, for example.

      • j5906@feddit.org
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        3 days ago

        and it takes 1 calorie to heat 1g of water by 1°C, so with your daily recommended food intake of 2000kcal you could heat 2000l of water by 1°C or raise 20l of water from 0°C to 100°C.

        Also a normal person can rides the bike between 0W and 100W comfortably, while trained people peak at around 1000W for short sprints.

    • imetators@lemmy.dbzer0.com
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      3 days ago

      And weight also revolves around water. 1L of water is 1KG which is 1000cm3 whereas 1cm3 is 1g. Super easy to calculate things.

      Edit: correction

    • Soggy@lemmy.world
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      2 days ago

      *at sea level, assuming pure water

      It’s intuitive with respect to water. Applying it to anything else is exactly the same as the Fahrenheit scale: you associate various things with numbers.