These exhibitions were locations, where the new gears,
technologies were shown. Thus engineers have begun to create
the networks. Networks of steel wheels, and towers, network of
exhibition locations. These networks were the most successful
ones. For example, in London, in Haid-park, where the Crystal
palace was submitted, the popular location for public has
become. It is important, that these exhibitions have declared
the approach of industrial century, they were the symbol of new
technologies.