We asked the inventor-illustrator Steven M. Johnson to find examples of products and ideas that move the world forward in creative ways. This week, he reports on the Monolithic Dome. David B. South originally created the system for a potato storage shed in 1976 but it has since grown to include domes of all sizes for multiple purposes—from gymnasiums to churches—and the concept deserves serious attention for its endless adaptability and its resistance to the extreme forces exerted by tornadoes and hurricanes.