this post was submitted on 03 Jul 2023
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Would you survive in the event of economic, political and social collapse? What natural disasters such as tornadoes, earthquakes or hurricanes are prevalent in your area? What can you do? What should you be doing now? What do you need to know/have?

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[–] [email protected] 1 points 1 year ago (4 children)

This sounds false. Aren't there places in Africa where it gets to like 120⁰f and few have AC?

[–] [email protected] 2 points 1 year ago (1 children)

It isn't the temperature, it's the humidity.

Wet bulb is a way measure how much evaporative cooling you can have. Once wet bulb gets to 95°F even a healthy fit individual will die given enough time even in the shade with a fan. It might be 112 but as long as the wet bulb stays below 95°F your body can cool with sweat. Any higher wet bulb the human body only heats up from the environment and can no longer cool, eventually leading to fatal hyperthermia (heat exhaustion and heat stroke).

[–] [email protected] 1 points 1 year ago

Interesting. Thanks for explaining

[–] [email protected] 1 points 1 year ago

"It's a dry heat" isn't just a cliche.

[–] [email protected] 1 points 1 year ago

That's likely dry bulb temperature. Wet bulb temperature is lower except at 100% humidity

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

That is exactly the conditions humans are adapted for: high arid heat. We are the world champions of sweating to stay cool, but that does nothing in humid weather. At high humidity, the temperature only needs to be near body temperature to kill you.