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Mainz Rail Bypass
The Mainz bypass railway (german: Umgehungsbahn Mainz) is a bypass around the Mainz Hauptbahnhof node primarily used for freight in the German states of Hesse and Rhineland Palatinate. History Even after Mainz Hauptbahnhof was moved to its present location in 1884, it soon became a bottleneck for traffic again. This was mainly due to the need to use the Mainz Tunnel, which only had two tracks. In 1900, the Prussian-Hessian Railway Company (''Königlich Preußische und Großherzoglich Hessischen Staatseisenbahnen'' or K.P.u.G.H.St.E.), supported by the governments of the Kingdom of Prussia and the Grand Duchy of Hesse, decided to solve this problem by building a rail bypass. While this required a complex route involving bridges, it avoided the need for freight traffic to run through Mainz Hauptbahnhof. The line entered operation on 2 May 1904. Route The 15.1 km long line begins in Mainz-Mombach station. It crosses the Rhine on the Emperor Bridge, Mainz, Emperor Bridge, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternating Current
Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''current'' or ''voltage''. The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with positive direction of the current and vice versa. In certain applications, like guitar amplifiers, different waveforms are used, such as triangular waves or square waves. Audio a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
