In the early 1940s, the US Navy needed a chair that was fireproof, waterproof, lightweight and strong enough to survive a torpedo blast. Engineer Wilton C. Dinges designed a chair made out of aluminum that was welded to be super strong. To demonstrate its durability he took it up to the eighth floor of a hotel in Chicago, where the Navy was examining submissions, and threw it out of the window. It didn’t bend or break. He got the contract.