Pitch is the distance from the crest of one thread to the next. Because the vast majority of screw threadforms are single-start threadforms, their lead and pitch are the same. Single-start means that there is only one ridge wrapped around the cylinder of the screw's body.
Definition of metropolis. 1  1 : the chief or capital city of a country, state, or region. 2  2 : the city or state of origin of a colony (as of ancient Greece) 3  3a : a city regarded as a center of a specified activity an industrial metropolis a cattle metropolisb : a large important city one of Europe's great metropolises.
Metropolis is frequently depicted as being within driving distance of Gotham City, home of Batman. This happens, for example, in the three-issue 1990 mini-series of World's Finest Comics by Dave Gibbons, Steve Rude, and Karl Kesel.he distance between the two cities has varied greatly over the years, ranging from being hundreds of miles apart to Gotham and Metropolis being twin cities on opposite sides of Delaware Bay, with Gotham City in the location of Cape May Point, New Jersey and Metropolis in the location of Lewes, Delaware.