Description of the American Electro Magnetic Telegraph Now in Operation Between
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The use of the ground as a conductor of the galvanic fluid, between two distant points, is to many a mystery. But of the fact there is no question. The above diagram exhibits the manner in which the east wire and ground were used from the first operation of the Telegraph, until the close of the ses- sion of Congress, June, 1844. In this diagram, we will minutely follow the course- of the galvanic current. B represents Baltimore, and W Washington ; C represents a sheet of copper, five feet long ...and two and a half feet wide, to which a wire is soldered and connects with the N pole of the battery. This sheet of copper lies in the water at the bottom of the dock, near the depot of the Baltimore and Ohio Rail Road, Pratt street. From P of the battery, the wire At this time the key is opened at the station from which -the communication is to be sent.
17 proceeds to &, the key, then iom, the magnet or register, then it is the east wire to &', the key at W, then torn', the magnet or register, then to the copper sheet, C', buried beneath the brick pavement in the dry dust of the cellar of the cap- itol.
What to read after Description of the American Electro Magnetic Telegraph Now in Operation Between?
You can find similar books in the "Read Also" column, or choose other free books by Alfred Vail to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The use of the ground as a conductor of the galvanic fluid, between two distant points, is to many a mystery. But of the fact there is no question. The above diagram exhibits the manner in which the east wire and ground were used from the first operation of the Telegraph, until the close of the ses- sion of Congress, June, 1844. In this diagram, we will minutely follow the course- of the galvanic current. B represents Baltimore, and W Washington ; C represents a sheet of copper, five feet long ...and two and a half feet wide, to which a wire is soldered and connects with the N pole of the battery. This sheet of copper lies in the water at the bottom of the dock, near the depot of the Baltimore and Ohio Rail Road, Pratt street. From P of the battery, the wire At this time the key is opened at the station from which -the communication is to be sent.
17 proceeds to &, the key, then iom, the magnet or register, then it is the east wire to &', the key at W, then torn', the magnet or register, then to the copper sheet, C', buried beneath the brick pavement in the dry dust of the cellar of the cap- itol.
What to read after Description of the American Electro Magnetic Telegraph Now in Operation Between?
You can find similar books in the "Read Also" column, or choose other free books by Alfred Vail to read onlineMoreLess
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