the.com/airconditioning
the machine that turned summer into a suggestion rather than a threat.
means a system that cools and dehumidifies air by cycling refrigerant through compression and expansion, moving heat from inside to outside.
from invented in 1902 by willis carrier to stop humidity from warping paper at a brooklyn printing plant, not to cool people at all.
original purposecontrolling humidity for printing ink, not comfort
movie theatersused ac as a summer marketing gimmick in 1920s
global impactenabled sunbelt cities like phoenix and dubai to boom
energy costuses about 6 percent of all us electricity