This Is The Weird Reason Revolving Doors Were Invented
Theophilus Kannel, born in Pennsylvania in 1841, was the inventor of the revolving door. Though his past is mysterious, it is believed that Kannel invented the revolutionary door in order to avoid having to hold doors for women. A public spanking at the age of 12, presumably after not holding a door, motivated Kannel to create a solution. He patented his "storm-door structure" in 1888, which included weather stripping to prevent energy loss. This invention solved numerous problems that traditional doors could not answer. Another invention of Kannel's includes Witching Waves, which is a scooter ride at Coney Island.
from Stuff of Genius
Key Facts In This Video
Theophilus Kannel invented the revolving door to avoid having to hold doors for women. (0:06)
Theophilus Kannel patented his revolving door design in 1888. (0:32)
Revolving doors are more energy efficient than traditional doors, and keep outside odors and noise from entering a building. (0:55)