99percentinvisible.org
Revolving Doors - 99% Invisible
The story goes like this: Theophilus Van Kannel hated chivalry. There was nothing he despised more than trying to walk in or out of a building, and locking horns with other men in a game of “oh you first, I insist.” But most of all, Theophilus Van Kannel hated opening doors for women. He set about