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A comment on The emergence of heat and humidity too severe for human tolerance (2020). Parent comment

Re:The emergence of heat and humidity too severe for human t... by formerly_proven on Wednesday August 11, 2021 @09:53AM (#28141970)
No, dew point is the temperature of an object on which air will start to condensate (because cooling the given air to the dew point lets relative humidity rise above 100 %, i.e. condensation). Wet-bulb temperature is the lowest temperature an object can reach through evaporative cooling (i.e. humans).

The two are the same only if relative humidity is 100 %: 100 % relative humidity means that if the air cools at all, it will condensate; so the air temperature is the dew point. 100 % relative humidity also means that water cannot evaporate, as the air is already saturated with water, so the wet bulb temperature is also the same as the air temperature.

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Re:The emergence of heat and humidity too severe for human t... by snovv_crash on Friday August 13, 2021 @01:48AM (#28165847)
But that's the same isn't it, because condensation is a reversible process, as evaporation. At some point they will balance, and this is the dew point.
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