Jasper County Democrat, Volume 22, Number 79, Rensselaer, Jasper County, 31 December 1919 — Explanation of Humidity. [ARTICLE]

Explanation of Humidity.

Humidity, technically speaking, says the Philadelphia Press, is the amount of water or vapor moisture in the air. A given space at a given temperature can contain only a amount of water. If It contains less it will endeavor to fill up by evaporation. If it contains more the surplus water

will condense. When a mass of air contains al! the moisture it is capable of holding it is said to tie saturated. The higher the temperature the more moisture it takes to saturate the air. if it contains less moisture than ■■veil'd saturate it at a given temperature, then the lower, temperature nt which this would sufficient for saturation is called the dew point. The percentage of moisture in the air to what it would hold If saturated is called the relative humidity. Thus, if the air contains one-half the moisture necessary to saturate it, the relative humidity is 50; if only a third, it is 33. it is of course, at its maximum when at 100 and fog forms and mist falls.