Where was air conditioning invented?
An earlier form of air conditioning was invented in Persia (Iran) thousands of years ago in the form of wind shafts on the roof, which caught the wind and passed it through water and blew the cooled air into the building [1]. The 19th century British scientist and inventor, Michael Faraday discovered that compressing and liquefying a certain gas could chill air when the liquified ammonia was allowed to evaporate. His idea remained largely theoretical. In 1842, Florida physician Dr. John Gorrie used compressor technology to create ice, which he would use to cool air blown over malaria and yellow fever patients. [2] He eventually had a vision of using his ice-making machine to regulate environment in buildings. He even envisioned centralized air conditioning that could cool entire cities. [3] Gorrie was granted a patent in 1851 (Patent #8080, USPTO) for his ice-making machine. The technology was attacked by Northern businessmen with the help of religious leaders they got to call the tech
