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.
The Russian Federation -- Russia shall be a democratic federal rule-of-law state with the republican form of government. The names Russian Federation and Russia shall be equivalent. Article 2. Man, his rights and freedoms shall be the supreme value. It shall be a duty of the state to recognize, respect and protect the rights and liberties of man and citizen. Article 3. The multinational people of the Russian Federation shall be the vehicle of sovereignty and the only source of power in the Russian Federation. The people of the Russian Federation shall exercise their power directly, and also through organs of state power and local self-government.