USA HISTORY

WESTWARD EXPANSION INDUSTRIALIZATION URBANIZATION 1870 1900

SECOND INDUSTRIAL REVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What was the main significance of the telegraph?
A
It quickly replaced the telephone as a means of communication
B
It was primarily used for business
C
It was incapable of transmitting over long distances
D
It was the first means of instant electronic communication
Explanation: 

Detailed explanation-1: -Beginning in 1850, submarine telegraph cables allowed for the first rapid communication between continents. Electrical telegraph networks permitted people and commerce to transmit messages across both continents and oceans almost instantly, with widespread social and economic impacts.

Detailed explanation-2: -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: -A telegraph is a communication system that sends information by making and breaking an electrical connection. It is most associated with sending electrical current pulses along a wire with Morse code encoding.

Detailed explanation-4: -Sent by inventor Samuel F.B. Morse on May 24, 1844, over an experimental line from Washington, D.C., to Baltimore, the message said: “What hath God wrought?” Taken from the Bible, Numbers 23:23, and recorded on a paper tape, the phrase had been suggested to Morse by Annie Ellsworth, the young daughter of a friend.

Detailed explanation-5: -The first two practical electric telegraphs appeared at almost the same time. In 1837 the British inventors Sir William Fothergill Cooke and Sir Charles Wheatstone obtained a patent on a telegraph system that employed six wires and actuated five needle pointers attached to five galvanoscopes at the receiver.

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