Defying Conventional Wisdom About Printing

So Carrier came up with a simple solution. If the plant was heated by blowing air through coils pumped full of steam, why not cool it by blowing air through coils filled with cold water? Water in the air, he correctly surmised, would condense on the coils, making the air in the plant both cooler and drier. On July 17, 1902, the printing plant was cooled for the first time, and the age of air conditioning was upon us.