Timeline of United States inventions (1890–1945)
Air conditioning is the cooling and de-humidification of indoor air for thermal comfort. Using a system of coils as a solution to cool and remove moisture from muggy air in a printing plant that was wrinkling magazine pages, Willis Carrier invented and manufactured the world's first mechanical air conditioning unit in 1902. Carrier's invention – encompassing the first system to provide man-made control over temperature, humidity, ventilation and air quality, was first installed as a solution to the quality problems experienced at a Brooklyn printing plant, Sackett-Wilhelms Lithographing and Publishing Company. Air conditioning not only spawned a company and an industry, but also brought about profound economic, social and cultural changes.
Elie Aghnides
Elie Prodromou Aghnides (1901–1988) was a Greek engineer and inventor, most famous for his invention of the faucet aerator. He was born in Istanbul, Turkey, in 1901. He had three siblings: Nicholas Prodromou Aghnides (1883-1979), a former professor at Columbia University; Thanassis Prodromou Aghnides (1889-1984), a former Greek ambassador and undersecretary to the United Nations in London during World War II; and Esmeralda Aghnides (1895-1992). Aghnides was educated in England and received an engineering degree from the University of Belgium.