Friday, 27 March 2009

Mist:what is it and where how happens?

Mist is a phenomenon of small droplets suspended in air. It can occur as part of natural weather or vlocanic activity, and is common in cold air above warmer water, in exhaled air in the cold, and in a steam room of a sauna. It can also be created artificially with aerosol canisters if the humidity conditions are right.

aerosol is a suspension of fine solid particles or liquid droplets in a gas. Examples are smoke, oceanic haze, air pollution, smog and CS gas.

The only difference between mist and fog is visibility [1]. This phenomenon is called fog if the visibility is one kilometre (~1,093 yards) or less (in the UK for driving purposes the definition of fog is visibility less than 200 metres, for pilots the distance is 1 kilometre). Otherwise it is known as mist. Seen from a distance, mist is bluish, while haze is more brownish.

The end.

1 comment:

  1. Teacher say must write name,u nvr listen to instruction.

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