Who invented air conditioning? Ask god for help.

Willis Haviland Carrier, a British inventor known as the father of refrigeration, designed and installed the first air conditioning system in 1902. The air conditioning system was designed for a printer in new york, USA. He found that the change of temperature would cause the deformation of paper, which would lead to the imbalance of color ink. Carrier registered the patent 1906. 1902 July 17 This young man who just graduated from Cornell University for one year invented air conditioning while working in Fudge Company in Buffalo, but the original purpose of air conditioning was not to bring people a comfortable living environment, but to serve some dead things. It is said that one of Buffalo's customers, William Printing Factory in Xiakete, new york, has a printing machine that causes the paper to expand and contract due to the change of air temperature and humidity, and the ink is misplaced, so that clear color printed matter cannot be printed. So I turned to Buffalo Company. Carrier thinks that since air can be kept warm by coils filled with steam, why not use air to cool down by coils filled with cold water? The moisture in the air will condense on the coil, so that the air in the factory will be cool and dry. 1902, 17 July, the air-conditioning era began with the first use of air-conditioning in this printing house. Soon, other industries, such as textile, chemical, pharmaceutical, food and even arms industry, also greatly improved the product quality because of the introduction of air conditioning. 1907, the first buyer to export air conditioners was a Japanese silk factory. 19 15, Carrier established its company and is still one of the largest air conditioning companies in the world. But in the 20 years after the invention of air conditioning, it has always been a machine, not a person. Until 1924, many people fainted in a shopping mall in Detroit because of the sultry weather. First, three central air conditioners were installed, which was a great success. The cool environment has greatly increased people's desire for consumption. Since then, air conditioning has become a powerful tool for merchants to attract customers, and the era of air conditioning serving people has officially arrived. But when it comes to air conditioning, it can be popularized, mainly through cinemas. Most Americans first came into contact with air conditioning in the cinema. In the 1920s, cinemas used air-conditioning technology, promising to provide cool air for the audience, making air-conditioning as attractive as the film itself, and summer replaced winter as the peak season for watching movies. Subsequently, a large number of indoor entertainment venues were opened all year round, such as casinos, indoor sports halls and shopping malls, all of which were attributed to air conditioning.