cross-posted from: https://infosec.pub/post/789102

As Italy swelters under dangerous heat, McDonald’s workers called a strike after their air conditioning broke in oppressively hot kitchens.

    • @pizzaiolo@slrpnk.net
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      8811 months ago

      Thanks. Whenever I see Fahrenheit units I have no fucking idea of what the actual temperature is meant to be

      • SteefLem
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        7211 months ago

        Yeah i know what u mean, and since the article is about italie which uses celcius its even weirder :)

      • I_Miss_Daniel
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        11 months ago

        One helpful tip I’ve figured out. 100 foreignheight is body temperature. So if it’s around 100°F it’s around 38°C.

      • PaleRider
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        11 months ago

        So the proper conversion from Celsius to Fahrenheit is F = 9/5C + 32

        But an easy way to do it (roughly) from Celsius to Fahrenheit is double it and add 30.

        To convert from Fahrenheit to Celsius is subtract 30 then halve it.

      • @Blaubarschmann@feddit.de
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        511 months ago

        A little helper to get a feel for it: 20°C is 68°F, 25°C is 77°F, 30°C is 86°F etc. Meaning, you just remember one or two combinations and then for every 5°C change it’s 9°F up or down

          • @ilickfrogs@lemmy.world
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            1111 months ago

            Right? You’d swear they invented the imperial system the way they latch on to it. Fucking ridiculous.

            • @FireRetardant@lemmy.world
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              811 months ago

              I feel bad for american youth struggling in math and sciences. The imperial system has so much less connectivity between their units that the only way is to memorize all sorts of arbitrary numbers.

        • SteefLem
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          1711 months ago

          Yeah this really not helping, me at least :)

        • @Vivarevo
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          411 months ago

          Nah. That math is so silly ill just ignore everything f

      • @Resonosity@lemmy.ca
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        11 months ago

        I think about the difference between the two using differences instead of absolutes. That looks like this:

        It’s kind of hard to do this calc:

        F = [ (9/5) * C ] + 32

        Or this one:

        C = (5/9) * (F - 32)

        I refer to those as absolute equations. You have to take into account the pesky offset everytime you want to convert. What if we drop it? This makes:

        F = (9/5) * C = 1.8 * C

        C = (5/9) * F ~= 0.6 * F

        I refer to those as relative or difference equations because if you subtract a temperature from the other, you get the same thing:

        F1 = [ (9/5) * C1 ] + 32

        F2 = [ (9/5) * C2 ] + 32

        F2 - F1 = [ (9/5) * C2 ] + 32 - { [ (9/5) * C1 ] + 32 }

        = [ (9/5) * C2 ] - [ (9/5) * C1 ] + 32 - 32

        = [ (9/5) * C2 ] - [ (9/5) * C1 ]

        = (9/5) [ C2 - C1 ]

        F2 - F1 = (9/5) (C2 - C1)

        ∆F = (9/5) ∆C

        So, why is this useful?

        Say you have a temperature in Celsius and want to go to Fahrenheit. Simply multiply that number in your head by 1.8 (or think of this as multiplying by 180° as in trig) and finally add to 32. So, 1 °C is (1 * 1.8) + 32 °F or about 34 °F.

        Going the other way is a little bit weirder. I make approximations when going the other way by thinking of 180° and how that can be divided. So, 180°, 90°, 45°, etc. corresponds to 1.8 °F (1 °C), 0.9 (0.5 °C), 0.45 °F (0.25 °C), etc. I also approximate by choosing the nearest multiple of 5 or 10 °C (9 or 18 °F). So, 44 °F is between 41 °F (5 °C) and 50 °F (10 °C), closer to 41. It’s off by 3, which is about 3.6, which is 2 in Celsius world. This means 44 °F is about 7 °C.

        Hope you get the gist! Celsius really is better. I remember this in a pinch:

        10 °C = 50 °F

        20 °C = 68 °F

        30 °C = 86 °F

        40 °C = 104 °F

        50 °C = 122 °F

        Etc.

        The freezing temps are a little hard since you cross zero into negatives, but the extrapolation can help

    • Fushuan [he/him]
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      1211 months ago

      Thanks, real geniuses to not mention the unit when using Fahrenheits and talking about Italy…

    • @BlazeOP
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      2211 months ago

      Definitely should be. I’m not Italian, but I know other European countries that have temperature thresholds for work

      • Wojciech Plackowski
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        211 months ago

        In Poland we got minimum temp to work, but not maximum. Above certain degree, employer must provide free drinking water but there is no law that we can leave work if its hot enough.

        • @BlazeOP
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          111 months ago

          That sounds bad, sorry for you guys