 As conductors they convey the heat of the atmosphere to the earth when the earth is cooler than the air, and transmit it in the contrary direction when the temperature of the earth is higher than that of the atmosphere. Of course, then, as conductors,...  Technical Manual - Page 25by United States. War DepartmentFull view - About this book
 | George Perkins Marsh - Conservation of natural resources - 1864 - 592 pages
...atmosphere to the earth when the earth is colder than the air, and transmit it in the contrary direction when the temperature of the earth is higher than that of the atmosphere. Of course, then, as conductors, they tend to equalize the temperature of the earth and... | |
 | George Perkins Marsh - Conservation of natural resources - 1874 - 702 pages
...atmosphere to the earth when the earth is colder than the air, and transmit it in the contrary direction when the temperature of the earth is higher than that of the atmosphere. Of course, then, as conductors, they tend to equalize the temperature of the earth and... | |
 | Agrippa Nelson Bell - 1885 - 404 pages
...of heat, when the earth is colder than the air, convey the heat of the atmosphere to the earth, and when the temperature of the earth is higher than that of the air, they transmit the heat in the opposite direction from the earth. It follows, then, as conductors of... | |
 | New York (State). Forest Commission - Forests and forestry - 1887 - 182 pages
...atmosphere to the earth when the earth is cooler than the air, and transmit it in the contrary direction when the temperature of the earth is higher than that of the atmosphere. Of course, then, as conductors, they tend to equalize the temperature of the earth and... | |
 | New York (State). Forest Commission - Forests and forestry - 1887 - 190 pages
...atmosphere to the earth when the earth is cooler than the air, and transmit it in the contrary direction when the temperature of the earth is higher than that of the atmosphere. Of course, then, as conductors, they tend to equalize the temperature of the earth and... | |
 | Joseph Herbert Ford - Military hygiene - 1917 - 264 pages
...— Subterranean ice box. (Manual for Army Cooks.) In hot climates this device is not advisable since the temperature of the earth is higher than that of the air. Another drawback is the difficulty of keeping it clean. »*/-•. .Yf. „ v^. ~~frM ^' ?^¥i^ ^r;-^... | |
 | Edward Bright Vedder, Duncan Cameron Walton - Chemical Warfare - 1925 - 436 pages
...than those in the front Warm, sunny days make non-persistent gases less effective. For, on a warm day, the temperature of the earth is higher than that of the air and ascending air currents are formed which carry the gas up, and also disperse it. On the other hand... | |
 | United States. War Dept - 1938 - 108 pages
...reserve are more likely to encounter the mustard type of agent than those in the forward areas. 6. Temperature. — (1) On warm sunny days, when the...agent. Cold weather accompanied by clouds increases the persistency of agents. (2) Substances like mustard gas may freeze in the soil. When mustard gas... | |
 | United States. War Department - 46 pages
...Effect of temperature and humidity. — Warm sunny days tend to make the use of gas less effective. The temperature of the earth is higher than that of the air on a warm day, with the result that ascending air currents are formed which carry the gas upward and... | |
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