Post #3562037

The wet bulb temperature, in contrast, is much more rigorously defined. You can measure the wet bulb temperature on your own: Make a little fabric (muslin, traditionally) sock for the bulb of a glass thermometer. It has to fit tightly. Attach a 1m string to the top of the glass thermometer. Dip the bulb and sock in water that's at the ambient air temperature. Whip the thermometer around your head a few times; record the temperature straight away. Repeat steps 3 and 4 until you get a consistent measurement. It's actually pretty hard to do it. You have to measure the temperature before the water evaporates, but after the bulb adjusts to the cooler wet bulb temperature. 2/3