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The Electric Telegraph
The Electric TelegraphThrough the use of electricity one could transmit a message to someone far away. -
Scientific Prionciples
Four scientific principles must be understood in order to create a useful electromagnetic telegraph. First, above all, is the production of galvanic currents by chemical action. This was demonstrated by Alessandro Volta in 1800, and the current was soon afterwards discovered to decompose water by electrolysis, and to heat fine wires -
Morse Code . Progression in telegraph industry.
Then in 1833 Carl Gauss and Wilhelm Weber created a telegraph that was able to send messages as far as one kilometer. In America similar versions were attempted but none took off. It wasn't until 1837 when Samuel Morse developed a new version of the telegraph. -
RailRoad Telegraph
Cooke promoted his telegraph for the operation of single-track railways as early as 1842, and it was used for this purpose from 1844 and for many years thereafter. It was also used for isolated blocks through long tunnels, steep gradients, and other local dangers, but not generally for controlling trains on double track until the telegraph block system was gradually and generally introduced in Britain after about 1865. -
Alphebetic Code
The table below allows easy comparison between the original Vail alphabet (after 1840, surely by 1844), the Austro-Germanic ("Prussian") alphabet for Morse instruments (1851), the present Continental Morse alphabet, and the Bain alphabet (1846). -
Underwater telegraph
In 1852, Alexander Jones thought an Atlantic Cable an impossibility, but a line to Europe via Bering Straits quite feasible. Samuel Morse, however, was sanguine about an Atlantic Cable at an early date. These things were thought about as soon as the telegraph arrived. -
Military Telegraph
The telegraph was used for communications between the headquarters of the allies in the Crimean War, 1854-55,the United States Army was the first to use field telegraphs extensively, in the American Civil War, 1861-65. -
District Telegraph
Just as one delivered a parcel to the railway company at a station, and it was delivered to the addressee when it reached its destination, one handed a message to the clerk at the telegraph office, and it was delivered by messenger at its destination.
