What are you supposed to do when an earthquake hits? If you answered “Go stand in a doorway,” you get a gold star... although "Get under a table" would also be correct. Doorways are structurally stronger than most other parts of a building, and are often the last thing left standing when a structure has been destroyed by an earthquake. A narrow doorway offers little, however, in the way of protection from falling debris. That’s why an MA Design student from England’s Kingston has University invented a special kind of door.