Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
e bulb, T,and its evaporation will reduce thetemperature of the bulb. A, bycausing the ether within to evap-orate to supply vapor to take theplace of the condensed vapor in T(see Fig. 34). When the temper-ature of the bulb. A, is thus suf-ficiently reduced, the moisture ofthe air will begin to… … HEAT. 191 Fig. 87. greater the amount of moisture, the nearer the dew-point is to thetemperature of the air; hence the difference between the two ther-mometers will indicate the relative humidity of the atmosphere. Thedrier the air the greater is this difference. 34-4- I^i&u.re 37.—Combustion…
Physics · Astronomy
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
