In 1902, a printing company in Brooklyn had a soggy problem. Humidity was warping the paper and smudging the ink, ruining entire print runs. Publisher Sackett & Wilhelms turned to a 25-year-old engineer named Willis Carrier for help.
Carrier built a machine that blew air over chilled coils, removing moisture while lowering temperature. He had no intention of cooling people. He was just trying to save the color registration on magazine covers. Carrier's machine used cooling coils to stabilize humidity, which accidentally lowered the air temperature as a byproduct.
The byproduct - human comfort - was an accident. But it was an accident that changed the shape of cities. Without air conditioning, Phoenix and Dubai - and even here in NoCen Florida - wouldn't exist, and summer movie blockbusters might still be played in sweltering theaters.
This industrial solution laid the foundation for comfort-cooling systems in movie offices, department stores, and homes decades later.
All because a printing plant needed to dry its paper.
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