What is Wind?
[[File:Pieter_Kluyver_-_Boom_in_stormwind.jpg|thumb|Pieter Kluyver (1816–1900)]] [[File:Windrichtungsgeber.jpg|thumb|A weather vane is used to find out where the wind comes from.]] [[File:Anemoscopi.JPG|thumb|[[Wind sock]]s such as this one are often used on [[airport]]s. They show the direction of the wind. They can also show how strong the wind is.]] '''Wind''' is the flow of [[gas]]es. On [[Earth]], wind is mostly the movement of [[air]]. In [[outer space]], [[solar wind]] is the movement of gases or [[particle]]s from the [[sun]] through [[space]]. The strongest winds seen on a [[planet]] in our [[solar system]] are on [[Neptune (planet)|Neptune]] and [[Saturn (planet)|Saturn]]. Short bursts of fast winds are called ''gusts''. Strong winds that go on for about one [[minute]] are called ''squalls''. Winds that go on for a long time are called many different things, such as ''breeze'', ''gale'', ''[[tropical cyclone|hurricane]]'', and ''[[typhoon]]''. Wind can move [[land]], especially in [[desert]]s. Cold wind can sometimes have a bad effect on [[livestock]]. Wind also affects animals' food stores, their hunting and the way they protect themselves. Sunlight drives the Earth's [[atmospheric circulation]]. The resulting winds blow over land and [[sea]], producing [[weather]]. A [[high pressure area]] (that makes an [[anticyclone]]) near a low pressure system (that makes a [[cyclone]]), makes air move from the high [[pressure]] to the low pressure to try to even out the pressures. The [[Coriolis effect]] causes the winds to spiral around. A big difference in pressure can make high winds. In some [[storm]]s, such as [[hurricane]]s, [[typhoon]]s, [[cyclone]]s, or [[tornado]]es, it can cause winds faster than 200 mph (320 kilometres per hour). This can damage [[house]]s and other [[building]]s, and can kill people. Wind can also be caused by the [[convection|rising of hot air]], or the falling of cool air. When hot air rises, it creates a low pressure underneath it, and air moves in to equalize the pressure.