Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems]
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In our eReader you can find the full English version of the book. Read Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems] Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems]
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AUTOMATIC REPEATER EQUIPMENT IN TELEGRAPH OPERATING ROOM.
HISTORY AND DEVELOPMENT OF TELEGRAPHY.
113 With regard to another important step, the relay, Reid ^ has also the following : Morse made his discovery with the relay in 1836. It was the discov- ery of a means by which the current which through distance from its source had become feeble could be reinforced oi; renewed by its own action. It made transmission from one point on a main line, through indefinitely great distances and through an ...indefinite number of branch lines, and to an indefinite number of stations and registration at them all, by the manipulation of a single operator at a single station, both possible and practicable.
It was not until 1837 that two of his instruments were put in operation at the ends of a short line. In the earlier stages of his work Morse had thought it necessary to embody the signs to be recorded or printed in a kind of type which would regulate the opening and closing of the circuit, in order to mark or imprint cor- responding points or signs upon a card or strip of paper at the desired intervals of time.
What to read after Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems]?
You can find similar books in the "Read Also" column, or choose other free books by United States. Bureau of the Census to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
AUTOMATIC REPEATER EQUIPMENT IN TELEGRAPH OPERATING ROOM.
HISTORY AND DEVELOPMENT OF TELEGRAPHY.
113 With regard to another important step, the relay, Reid ^ has also the following : Morse made his discovery with the relay in 1836. It was the discov- ery of a means by which the current which through distance from its source had become feeble could be reinforced oi; renewed by its own action. It made transmission from one point on a main line, through indefinitely great distances and through an ...indefinite number of branch lines, and to an indefinite number of stations and registration at them all, by the manipulation of a single operator at a single station, both possible and practicable.
It was not until 1837 that two of his instruments were put in operation at the ends of a short line. In the earlier stages of his work Morse had thought it necessary to embody the signs to be recorded or printed in a kind of type which would regulate the opening and closing of the circuit, in order to mark or imprint cor- responding points or signs upon a card or strip of paper at the desired intervals of time.
What to read after Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems]?
You can find similar books in the "Read Also" column, or choose other free books by United States. Bureau of the Census to read onlineMoreLess
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