The invention of the air-conditioner:

The first modern air conditioner was invented in 1902 by engineer Willis Havilland Carrier.
Willis Carrier submitted drawings for what became recognized as the world’s first modern air conditioning system. The 1902 installation marked the birth of air conditioning because of the addition of humidity control, which led to the recognition by authorities in the field that A/C must perform four basic functions:

1- control temperature
2- control humidity
3- control air circulation and ventilation
4- cleanse the air

The working principle of the air conditioner:

The refrigeration system contains three main components and components:
Air compressor or piston, condenser, and chain tube for evaporation. And to complete the process of cooling using air conditioners, a chemical known as the coolant, to transfer the heat of the inner environment to the outside air, and that the three elements of the conditioner update the chemical from the gaseous state to the liquid state.

Air conditioners and their relationship to temperature change:

The change in our life included the climate, which leads to the wheel of technology accelerating the production of air conditioners that are appropriate for the most important place and offering a healthy life by maintaining a temperature commensurate with the human body and always providing the best.