The concept of Y was known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses.
In 1902 , X invented the modern Y in Buffalo, NY.
X found a job at the Buffalo Forge Company.
X began experimenting with Y to solve a problem for the Sackett- Wilhelm Lithographic and Publishing Company, and invented the Y...
X
4 comments:
Y: is probably the Air conditioner
X: Carrier?
X- Willis Carrier
Y- Modern Air Conditioning System
dont know who is x but device is air conditioning(y)
Y : Air Conditioning
X : Willis Carrier
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