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 to a liquid.

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Dew forms as temperatures drop và objects cool down. If the object becomes cool enough, the air around the object will also cool. Colder air is less able to lớn hold water vapor than warm air. This forces water vapor in the air around cooling objects to 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, và time of day.
Humid locations, such as the warm, coastal tropics, are more likely to 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, mix different layers of air, containing different amounts of water vapor. This reduces the atmosphere"s ability to lớn khung dew.
Cold weather can also prsự kiện 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 a solid. Moisture changes from water vapor lớn ice.
Dew is most likely to form at night, as temperatures drop and objects cool. However, dew can size whenever a dew point is reached. 
Although warm, humid areas commonly experience heavy dew, dew does not size in amounts people could khổng lồ collect as a water source.
Still, several organizations are working to lớn develop technology that will allow them khổng lồ 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 sầu been put to lớn work in Kutch, India, where hundreds of liters of water can be harvested every night at certain times of the year.

Dewy EyesThe water droplets that form on eyeglasses in hot, humid atmospheres is dew. However, the term "condensation," which applies lớn 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 một nửa degrees south of the Equator).

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


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