Air Conditioning Apr 2026

Before this breakthrough, attempts to stay cool were often desperate or dangerous:

Modern air conditioning was not actually invented to keep people cool, but to keep paper dry. In 1902, a young engineer named was working at a Brooklyn printing plant where the summer humidity was causing paper to expand and contract. This ruined the alignment of four-color printing jobs. Carrier designed a system that used chilled coils to pull moisture from the air, unintentionally creating the world’s first electrical air conditioner. AIR CONDITIONING

: In the 1840s, Dr. John Gorrie tried to cool yellow fever patients using compressed air to make ice. He was mocked by the press as a "crank" who thought he could "make ice... as good as God Almighty". Before this breakthrough, attempts to stay cool were