Willis Carrier, “Father of air conditioning”

Willis Carrier, "Father of air conditioning:" – Carrier's "Igloo of Tomorrow" opened April 25, 1939 in 90 degree heat with scantily clad "snow bunnies" scooping manufactured slush under the benevolent supervision of thermometer-wielding company founder Willis Haviland Carrier. (Courtesy of the Smithsonian Institution/AP Photo)

Willis Carrier, “Father of air conditioning:” – Carrier’s “Igloo of Tomorrow” opened April 25, 1939 in 90 degree heat with scantily clad “snow bunnies” scooping manufactured slush under the benevolent supervision of thermometer-wielding company founder Willis Haviland Carrier. (Courtesy of the Smithsonian Institution/AP Photo)