The Evolution of Air-Conditioning
People all over the world enjoy air-conditioning, "a system or process for controlling the temperature, humidity,
and sometimes the purity of the air in an interior... especially one capable of cooling".
More than 4,000 years ago the Egyptians put wet sheets of material in doors to create a cooling effect in an area .
3,500 years later the mechanical fan was invented.
About 382 years later the electric ceiling fan was invented.
20 years later, in1902, air-conditioning was invented.
As of now, homes and cars have installed air-conditioning.
More than 4,000 years ago the Egyptians put wet sheets of material in doors to create a cooling effect in an area .
3,500 years later the mechanical fan was invented.
About 382 years later the electric ceiling fan was invented.
20 years later, in1902, air-conditioning was invented.
As of now, homes and cars have installed air-conditioning.
I predict that in the future a sensor will be created that will automatically turn an air-conditioning unit on when it senses someone walk into a room, and that unit will be programmed beforehand with that certain person's preferences.