Air conditioning
In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. After graduating from Cornell University, Carrier found a job at the Buffalo Forge Company. There, he began experimenting with air conditioning as a way to solve an application problem for the Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, New York. The first air conditioner, designed and built in Buffalo by Carrier, began working on 17 July 1902.
Schuyler Wheeler
Schuyler Skaats Wheeler (May 17, 1860 – April 20, 1923) was an American electrical engineer and manufacturer who invented the electric fan, the electric elevator, and the electric fire engine. He helped develop and implement a code of ethics for electrical engineers.