17 Jul '12, 10pm

Happy 110th Birthday to Air Conditioning!

Willis Carrier with his first chiller/Public Domain On July 17, 1902, a 26 year old Willis Haviland Carrier flipped the switch on the first modern air conditioner at the Sackett-Wilhelms Lithographing & Publishing Company of Brooklyn, where humidity was causing problems with their paper stock. Carrier subsequently figured out the theory of everything for air conditioning, what Wikipedia says became known as ""Magna Carta of Psychrometrics." This document tied together the concepts of relative humidity, absolute humidity, and dew-point temperature, thus making it possible to design air-conditioning systems to precisely fit the requirements at hand." It took a while to get the bugs out, to develop more efficient centrifugal chillers, to replace ammonia with something less toxic, and to expose air conditioning to the general public, which ate it up. Rivoli Theater New York, v...

Full article: http://www.treehugger.com/green-architecture/happy-110th-...

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Happy 110th Birthday, Air Conditioning

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