Dr. John Gorrie came up with an idea to circulate air over ice, helping cool a patient’s room. This practice was in use during the late 1800s, when President Garfield was in ill health, when an ice contraption lowered room temperature by 20 degrees. In the early 1920s, Willis Carrier invented air conditioning units similar to modern models.
Air conditioning is an invention many people take for granted, but one that is very important in both homes and businesses. A product that began as a luxury has become commonplace around the world.
Ancient Uses
Keeping buildings cool is not a new idea. Several Roman houses used aquaduct systems in the walls to circulate cold water. The Chinese used water sprays and fans as early cooling systems.
Air Conditioning Begins
True air conditioning got a jumpstart in 1902, when Willis Haviland Carrier invented the first AC unit to cool a printing company.
The Invention Spreads
Air conditioning spread fast and was installed at the White House in 1930. Packard Car Company offered air conditioning in one of their models in 1939.
Major Milestone
In 1953, the technology hit a major milestone–the sale of the millionth AC unit.
Going Green
Air conditioning began going green in 1987 when the National Appliance Energy Conservation Act passed. This set energy efficiency standards for AC units to save power resources.
Read more: The History of the Air Conditioner | eHow.com http://www.ehow.com/facts_5124297_history-air-conditioner.html#ixzz1RNUeAVM7
