LIFE IN ANTEBELLUM AMERICA 1807 1861
THE TRANSPORTATION REVOLUTION TURNPIKES TO STEAMBOATS TO RAILROADS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Telegraph wires spread across the continent by following railroad tracks west.
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The first telegraph line ran from Philadelphia, Pennsylvania, to New York City.
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He developed the semaphore system, thereby revolutionizing communications.
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He invented the electric telegraph that transmitted information instantaneously.
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He devised a code of dots and dashes for sending messages over the wire.
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Detailed explanation-1: -The second one is C. He devised a code of dots and dashes for sending messages over the wire. and the last one E. Telegraph wires spread across the continent by following railroad tracks west.
Detailed explanation-2: -Developed in the 1830s and 1840s by Samuel Morse and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations.
Detailed explanation-3: -What did Samuel F.B. Morse invent? Samuel F.B. Morse developed an electric telegraph (1832–35) and then invented, with his friend Alfred Vail, the Morse Code (1838). The latter is a system for representing letters of the alphabet, numerals, and punctuation marks by arranging dots, dashes, and spaces.
Detailed explanation-4: -That year, Morse was traveling to the United States from Europe on a ship when he overheard a conversation about electromagnetism that inspired his idea for an electric telegraph. Though he had little training in electricity, he realized that pulses of electrical current could convey information over wires.