WESTWARD EXPANSION INDUSTRIALIZATION URBANIZATION 1870 1900
WESTWARD EXPANSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the cellphone
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the walkie talkie
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the fax machine
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the telegraph
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Detailed explanation-1: -Inventor Samuel Morse developed the telegraph system. Morse’s system sent out a signal in a series of dots and dashes, each combination representing one letter of the alphabet (“Morse code”). The inventor submitted a patent for his device, which he called “The American Recording Electro-Magnetic Telegraph” in 1837.
Detailed explanation-2: -A brief historical overview: The printing press was the big innovation in communications until the telegraph was developed. Printing remained the key format for mass messages for years afterward, but the telegraph allowed instant communication over vast distances for the first time in human history.
Detailed explanation-3: -Between 1832 and 1837, he developed a working model of an electric telegraph, using crude materials such as a home-made battery and old clock-work gears.