• monsterpiece42@reddthat.com
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      1 year ago

      Man, come on. The ONLY time imperial makes some decent sense is temperature: for humans, 0 is really cold and 100 is really hot.

      Edit: for anyone metric having a cow here, I am pro-metric. All I’m trying to say is that of all the hairbrained measurements in imperial, temperature is the least hairbrained.

      • HankMardukas@lemmy.world
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        1 year ago

        100 is unacceptably hot. Nobody can live in that for long.

        86f peak temperature with 35% humidity? Tolerable. Especially when the sun goes down and the temp drops but the humidity stays lower than like 55%.

        But the next day of 95f peak temp followed by 76f nadir with 70% humidity overnight? People without A/C die. The homeless die.

        • jasory@programming.dev
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          1 year ago

          What? Tropical regions regularly get that hot, are we supposed to believe that humans die off during the day and get replaced in the night?

          I live in Maricopa county, and while yes people do die from the heat, it’s not really a substantial amount (about 400 out of over 4 million). It’s almost always the elderly or people with severe health problems.

            • jasory@programming.dev
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              1 year ago

              You should have linked a physiology reference.

              Do you know what temperature a hot tub is? That’s with nearly full body immersion, 40 C with 70 percent humidity is easily survivable.

              Of course any outside temperature above 37 has a possibility of killing you, but those are the extreme outliers. If the claims being made here were accurate, humans wouldn’t exist, we would never have survived a tropical summer.

              • agarorn@feddit.de
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                1 year ago

                Of course you don’t die instantly. The guy above talked about temperatures like that over a longer period, i. E. A whole day.

                People can survive 100C+ saunas for 15+ minutes. But 40C and 100% humidity will kill you after a couple hours.

                • jasory@programming.dev
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                  1 year ago

                  Again, no. As long as you can replenish water and electrolytes, you’re not going to die. It doesn’t take a few hours to kill someone by heat. If you are actually unable to regulate your body temperature, your core temperature will increase much faster than “taking a whole day”. It’s the loss of water and electrolytes that inihibits your metabolism and cooling that makes you die, not the heat taking several hours to permeate through your skin. (Human metabolism generates a lot of heat, so this idea is even more absurd if you think about it).

                  Read a physiology textbook, or even basic evolutionary biology if a human couldn’t survive 40C with humidity, humans would be extinct.

                  • agarorn@feddit.de
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                    1 year ago

                    It seems like you talk about sweating - thats why you talk about the replenish water and ectrolytes part. I hope you know how sweating works and that it only works if the humidity is not too high.

                    So what do you think happens if the air temperature is over your body temperature and sweating dies not cool you down?

                    Maybe you should read a book. I am really curious about a biology text book that will tell me that 40C and 100% humidity is totally fine for humans for survive, lol.

                    Please start here: https://en.wikipedia.org/wiki/Wet-bulb_temperature?wprov=sfla1

        • ScottyB
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          1 year ago

          Small world views. Places have hotter temps than that and more rural communities and do fine.

          Not doubting your comment, but it is just localised to wherever you sourced that.

      • darcy@sh.itjust.works
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        1 year ago

        your right. there is no true ‘objective’ scale for temperature. freezing/boiling water is arbitrary and not even that consistent. for 99% of use, farenheit is better for people. the biggest advantage that celsius has, is that it is the same scale as kelvin, but thats just because it was more popular in science. the rest of metric is good tho

    • Mo5560@feddit.de
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      1 year ago

      Here’s how you convert between the two:

      T[°C] = (T[°F] - 32)* 5/9

      32°F is 0°C which is why you need the 32 in there. For the fraction I always just try to think about whether Celsius or Fahrenheit is bigger. Accordingly, I’ll need a number smaller or larger than one.

      edit:

      Aight I got the fraction wrong, which kinda proves that it’s useless to remember lmao.

      • Pipoca@lemmy.world
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        1 year ago

        The easy way to remember the multiplier is that there’s exactly 180 degrees between boiling and freezing in Fahrenheit, and 100 in Celsius. Just use 1.8 instead of a fraction.

          • Pipoca@lemmy.world
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            1 year ago

            In Fahrenheit, 0 is the temperature of ice in some random brine, just as 0 in Celsius is the temp of ice water.

            Fahrenheit and Celsius are defined nearly identically. Fahrenheit just chose some weird values for its basic constants, like using a weird ice brine instead of just ice water.

        • Mo5560@feddit.de
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          1 year ago

          I find it easier to do mental arithmetic with the fraction (and I didn’t know the boiling point of water in Fahrenheit). But thanks anyways!

      • Lemminary@lemmy.world
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        1 year ago

        That edit lol I used to know this by heart at some point in my life. Now I’m fine knowing that it exists and use software to do it for me instead