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Explored the principle of evaporation as a means to rapidly cool an object.
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ice-making machine that uses compression to make buckets of ice and then blows air over them
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naval engineers build a boxy makeshift cooling unit, which is filled with water-soaked cloth and a fan blows hot air overhead and keeps cool air closer to the ground.
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Willis Carrier invents the Apparatus for Treating Air, which blows air over cold coils to control room temperature and humidity
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7 feet high, 6 feet wide, 20 feet long, the first airconditioner was installed in the mansion of Charles Gates
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H.H. Schultz and J.Q. Sherman invent an individual room air conditioner that sits on a window ledge
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Central home units, consisting of a condenser, coils, and a fan, replace individual units. Air gets drawn, passed over coils, and blasted through a home's ventilation system.
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Freon, previously used in air conditioning units, is linked to ozone depletion and banned in several countries, resulting in a switch to the coolant R134a by 1996.
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non-vapor compression technology is being developed to reduce energy consumption by 50 percent, and stop the use HFCs that harm the environment.
