Skyscrapers

life at the turn of the 20th century dee rodgers

A skyscraper is a tall, continuously habitable building of many floors , usually designed for office, commercial and residential use. There is no official definition or height above which a building may be classified as a skyscraper and at which height it may not be considered a high-rise anymore. For buildings above a height of 300 m (984 ft), the term supertall can be used, skyscrapers reaching beyond 600 m

El-Trains

the rapid transit system serving the city of Chicago and some of its surrounding suburbs, in the U.S. state of Illinois . It is operated by the Chicago transit authority (CTA). It is the fourth largest rapid transit system in the United States in terms of total route length (at 102.8 miles (165.4 km) long

Subways

The NYC subway is a rapid transit system owned by the city of New York and leased to the NYC transit authority a subsidiary agency of the Metropolitan transit authority . It is one of the largest public transportation systems in the world by number of stations, with 468 stations in operation

Elevators

is a type of vertical transport equipment that efficiently moves people or goods between floors (levels,desks) of a building, vessel , or other structure. Elevators are generally powered by electric motors that either drive traction cables or counterweight systems like a hoist , or pump hydraulic fluid to raise a cylindrical piston like a jack

New forms of mass entertainment

The Mass Media are diversified media technologies that are intended to reach a large audience by mass communication. The technologies through which this communication takes place varies. Broadcast media such as radio, recorded music,film and television transmit their information electronically. Print media use a physical object such as a newspaper, book, pamphlet , or comics to distribute their information. Outdoor media is a form of mass media that comprises billboards , signs or placards placed inside and outside of commercial buildings, sports stadiums, shops and buses. Other outdoor media include flying billboards (signs in tow of airplanes,blimps and skywriting.