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the participant entered a specialized environmental chamber that had adjustable temperature and humidity levels. While the participant performed light physical
by jefftk 4y ago
the participant entered a specialized environmental chamber that had adjustable temperature and humidity levels. While the participant performed light physical activity like light cycling or walking slowly on a treadmill, the chamber either gradually increased in temperature or in humidity until the participant reached a point at which their body could no longer maintain its core temperature.
Why are they having people do "light physical activity"? The 35C number they're comparing to is for someone generating as little heat as possible (resting).
- bell-cot 4y agoLong answer: They're thinking about whole human cities subject to high web bulb temperatures, for (at least) many hours. Avoiding even light physical activity is not an option for everyone in a city, for any period of time. Short answer: Next time you get DoorDash or Uber Eats, ask the delivery guy about this.
- jefftk 4y agoSure, but then the "as high as previously thought" is wrong. We already knew 35C wet-bulb wasn't doable when combined with activity.
- slfnflctd 4y agoEven if your vehicle has air conditioning, past a certain point (say, when your aging mid-level sedan has been driven for 6+ hours on local streets in direct sun the whole time), a lot of them won't be able to keep the cabin cool enough to prevent discomfort. Sweaty buttcrack almost ended my run with Lyft & Uber prematurely. My passengers were fine with the a/c on max, but I was getting more sun & moving around more. What saved my ass was a fan-infused car seat cushion powered off a standard car outlet. It's most effective once you've already started sweating, but it changed the game for me. I now consider it essential equipment.