Air+Conditioner

=My Device= Air Conditioner

Purpose
//Cool you off on a hot day.//

Energy
It takes electric energy from the wall outlet and from there the electricity moves the compressor/engine.

Controls
It has temperature sensors to get an exact temperature of the air being exerted out of the air conditioner

Materials
//What material(s) are essential to the device?//

Science
//Condensing and evaporating air//

Design
It is normally a metal box with a head unit and two fans

Evolution
//In Britian in 1820 scientist Michael Faraday discovered when freezing then liquifying amonnia the evaporation would cause a chilling effect. When he noticed this he made it able to produce ice. It was like that until they prohibited the use of amonia. Then they used CFCs, But in the 80's those were prohibited and now they use Hydrofluorocarbon gas but that will be banned in 2010.//

Competitors
//Heaters Central Air A/C units//

Partners
//Heaters//

Refrigerators

Siblings
//Heaters- Which do this prosess in reverse.//

Refrigerators they cool food so it has an extended life