Beam bridges are often only used for relatively short distances because, unlike truss bridges, they have no built in supports. The only supports are provided by piers. The farther apart its supports, the weaker a Beam bridge gets. As a result, Beam bridges rarely span more than 250 feet.
Russia Government type. Factbook > Countries > Russia > Government. Government type: semi-presidential federation. Definition: This entry gives the basic form of government. Definitions of the major governmental terms are as follows.
Russia has a parliament called the State Duma, however, the party in control is Putin's own party, United Russia, and they rarely, if ever, oppose Putin or restrict his powers. The Duma is essentially a rubber stamp, which only serves to lend Putin legitimacy.