SOS, the internationally recognized distress signal, does not stand for any particular words.
Developed in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication.
It worked by transmitting electrical signals over a wire laid between stations.
C., to Baltimore, Maryland; by 1866, a telegraph line had been laid across the Atlantic Ocean from the U. Before the development of the electric telegraph in the 19th century revolutionized how information was transmitted across long distances, ancient civilizations such as those in China, Egypt and Greece used drumbeats or smoke signals to exchange information between far-flung points.
However, such methods were limited by the weather and the need for an uninterrupted line of sight between receptor points.
Extensive systems appeared across Europe by the later part of the 19th century, and by 1866 the first permanent telegraph cable had been successfully laid across the Atlantic Ocean; there were 40 such telegraph lines across the Atlantic by 1940.
The electric telegraph transformed how wars were fought and won and how journalists and newspapers conducted business.
He reportedly had become intrigued with the idea after hearing a conversation about electromagnetism while sailing from Europe to America in the early 1830s, and later learned more about the topic from American physicist Joseph Henry (1797-1878).
In collaboration with Gale and Vail, Morse eventually produced a single-circuit telegraph that worked by pushing the operator key down to complete the electric circuit of the battery.
Another improvement, by the famed inventor Thomas Alva Edison (1847-1931) in 1874, was the Quadruplex system, which allowed for four messages to be transmitted simultaneously using the same wire.
Use of the telegraph was quickly accepted by people eager for a faster and easier way of sending and receiving information.
In 1843, Morse and Vail received funding from the U. Congress to set up and test their telegraph system between Washington, D. On May 24, 1844, Morse sent Vail the historic first message: “What hath God wrought!Tags: Adult Dating, affair dating, sex dating