Editing 2026: Heat Index
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==Explanation== | ==Explanation== | ||
− | Heat index, like wind chill, is a way to combine multiple factors, in this case temperature and humidity, to get a single number indicating what the air "feels like." {{w|Heat index | + | {{incomplete|Created by a hot editor - Please change this comment when editing this page. Do NOT delete this tag too soon.}} |
+ | Heat index, like wind chill, is a way to combine multiple factors, in this case temperature and humidity, to get a single number indicating what the air "feels like." {{w|Heat index}} gives a table, a formula, and lots more explanation. | ||
− | Human skin does not directly detect temperature - only the rate of heat gain or loss. | + | Human skin does not directly detect temperature - only the rate of heat gain or loss. This is why a piece of metal feels cooler than a piece of plastic or wood at the same exact temperature (below body temperature, above it is the other way around) - the metal conducts heat away from the higher body temperature than a good insulator does. |
So in warm weather, it's not just the temperature that matters for comfort. The humidity and wind speed also factor into it. When humidity is high, sweat evaporation is less effective at cooling us off than in a "dry heat" with low humidity. | So in warm weather, it's not just the temperature that matters for comfort. The humidity and wind speed also factor into it. When humidity is high, sweat evaporation is less effective at cooling us off than in a "dry heat" with low humidity. | ||
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The joke here is that these numbers seem entirely subjectively chosen - and in a sense, they really are, although they are calculated from an actual formula (a multivariate fit to a mathematical model of the human body - with nine terms!) and not by guesswork as the flow chart implies. | The joke here is that these numbers seem entirely subjectively chosen - and in a sense, they really are, although they are calculated from an actual formula (a multivariate fit to a mathematical model of the human body - with nine terms!) and not by guesswork as the flow chart implies. | ||
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==Transcript== | ==Transcript== | ||
− | + | {{incomplete transcript|Do NOT delete this tag too soon.}} | |
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{{comic discussion}} | {{comic discussion}} | ||
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