which should be able to transmit several times as many dispatches per hour over a telegraph wire as can be done by the Morse instrument. The theory upon which all the experimenters in this ...

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In December he sends messages by wire between two committee rooms in the U.S. Capitol, leading Congress to appropriate $30,000 towards construction of a telegraph line. Portuguese engineer Jose d ...

Telegraph wires wrapped around spike and sledgehammer transmitted the impact instantaneously east and west. In San Francisco and New York, wires had been connected to cannons facing outward across ...

As a matter of fact, it is a decided advantage to place the station as far from town as possible, because buildings, trees, telegraph and telephone poles and wires, all tend to absorb a large part ...