Useful english dictionary. 2012.
Dew|ar tube — Dew|ar flask, Dew|ar vessel, Dew|ar bulb, or Dew|ar tube «DOO uhr, DYOO », a glass vessel with double, silvered walls, from between which the air has been removed, used especially as a container for liquefied gases. ╂[< Sir James Dewar, 1842… … Useful english dictionary
Dew|ar vessel — Dew|ar flask, Dew|ar vessel, Dew|ar bulb, or Dew|ar tube «DOO uhr, DYOO », a glass vessel with double, silvered walls, from between which the air has been removed, used especially as a container for liquefied gases. ╂[< Sir James Dewar, 1842… … Useful english dictionary
Dew|ar flask — Dew|ar flask, Dew|ar vessel, Dew|ar bulb, or Dew|ar tube «DOO uhr, DYOO », a glass vessel with double, silvered walls, from between which the air has been removed, used especially as a container for liquefied gases. ╂[< Sir James Dewar, 1842… … Useful english dictionary
Dew point — The dew point is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into liquid water. The condensed water is called dew when it forms on a solid surface. The dew… … Wikipedia
Dew point depression — The dew point depression (T Td) is the difference between the temperature and dew point temperature at a certain height in the atmosphere. The smaller the difference, the more moisture there is, and the higher the relative humidity. In the lower… … Wikipedia
Wet-bulb temperature — The wet bulb temperature is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. Wet bulb temperature can have several technical meanings:… … Wikipedia
Dewar bulb — Dewar Dew ar (d[=u] [ e]r), Dewar vessel Dew ar ves sel, Dewar flask Dew ar flask [After Sir James Dewar, British physicist.] A double walled glass vessel for holding liquid air, liquid nitrogen, etc., having the space between the walls exhausted … The Collaborative International Dictionary of English
Dry-bulb temperature — The dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture. Dry bulb temperature is the temperature that is usually thought of as air temperature, and it is the… … Wikipedia
dry- and wet-bulb hygrometer — An instrument to measure the dew point, relative humidity, and vapor pressure. It essentially consists of two ordinary, accurate, mercury thermometers. One has thin muslin wrapped around it and is kept wet; it is called a wet bulb thermometer.… … Aviation dictionary
Evaporative cooler — An evaporative cooler, photographed in Rocky Ford, Colorado, used in the drier parts of the American West to provide economical cooling … Wikipedia
