Mountain Dew Definition & Meaning

dew

Dew is the moisture that forms at night when objects or the ground outside cool down by radiating, or emitting, their heat


Dew is the moisture that forms as a result of condensation. Condensation is the process a material undergoes as it changes from a gas to a liquid. Dew is the result of water changing from a vapor lớn a liquid.

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Dew forms as temperatures drop & objects cool down. If the object becomes cool enough, the air around the object will also cool. Colder air is less able lớn hold water vapor than warm air. This forces water vapor in the air around cooling objects lớn condense. When condensation happens, small water droplets form—dew. 
The temperature at which dew forms is called the dew point. The dew point varies widely, depending on location, weather, & time of day.
Humid locations, such as the warm, coastal tropics, are more likely lớn experience dew than arid areas. Humidity measures the amount of water vapor in the air. Warm, humid air is full of moisture that can condense during calm, cool nights.
Weather conditions can also influence an area"s dew point. Strong winds, for instance, set different layers of air, containing different amounts of water vapor. This reduces the atmosphere"s ability to form dew.
Cold weather can also prevent the formation of dew. As temperatures drop below freezing (0°Celsius, 32°Fahrenheit), a region may reach its frost point. At a frost point, water vapor does not condense. It sublimates, or changes directly from a gas to lớn a solid. Moisture changes from water vapor to lớn ice.
Dew is most likely to form at night, as temperatures drop and objects cool. However, dew can form whenever a dew point is reached. 
Although warm, humid areas commonly experience heavy dew, dew does not form in amounts people could to lớn collect as a water source.

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Still, several organizations are working to develop công nghệ that will allow them to lớn harvest dew as a freshwater resource. They hope that foil condensers will help meet the water needs of arid areas. The most successful of these condensers have been put khổng lồ work in Kutch, India, where hundreds of liters of water can be harvested every night at certain times of the year.
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Dewy EyesThe water droplets that form on eyeglasses in hot, humid atmospheres is dew. However, the term "condensation," which applies to the process as well as the moisture itself, is usually used.


state of matter with no fixed shape that will fill any container uniformly. Gas molecules are in constant, random motion.


region generally located between the Tropic of Cancer (23 một nửa degrees north of the Equator) và the Tropic of Capricorn (23 1/2 degrees south of the Equator).


state of the atmosphere, including temperature, atmospheric pressure, wind, humidity, precipitation, và cloudiness.


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