Willis Carrier
Willis Haviland Carrier (November 26, 1876 – October 7, 1950) was an American engineer, best known for inventing modern air conditioning. Carrier invented the first electrical air conditioning unit in 1902. In 1915, he founded Carrier Corporation, a company specializing in the manufacture and distribution of heating, ventilation, and air conditioning (HVAC) systems.
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.