Air Conditioner के बारे में 16 रोचक तथ्य – Interesting Facts Amazing Fact in Hindi - When the air conditioner was not invented, many efforts were made to avoid heat and reduce heat, for this, natural ventilation was created to reduce the heat, it worked. But it did not change so much. With the help of nature, heat could not be completely dissipated. This required an artificial invention, so that the human could not suffer from heat and could live without difficulty. The first cooling device in 1830 was American Physician Dr. John Gorrie made it to his hospital in Florida. Similarly, when President James Garfield was about to die in 1881, the Navy built a machine in which a cloth was being melted with melted snow and the air was being passed through the fan, leaving room temperature 20 degrees. Even less than that, but there was a problem that half a million pounds of snow melted in 2 months. This made it very expensive. ...