Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918)
Keene, E. S. (Edward Spencer), b. 1864 · New York, McGraw-Hill book company, inc.; · leaf 216
ultimately prevent the water fromthoroughly wetting the wick. An observation consists in reading the two thermometers andfrom the difference between the wet-bulb reading and that of thedry-bulb, the relative humidity is taken directly from the table.To illustrate, suppose that the dry-bulb… … Fig. 15 7.—Hy-grometer of U. S.Weather Bureautype; for determin-ing atmospherichumidity. 206 MECHANICS OF THE HOUSEHOLD that number in the column headed 4 is 78, which indicates thatunder the observed conditions the air is 78 per cent, saturatedwith moisture. This table is suited for air…
Heating · Lighting · Plumbing
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