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 fansAirconditioner.jpg

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.

Related Devices

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
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