(Jiachen eighth day of April), May 24, 1844, the American inventor Morse test the success of the world's first a telegram.

thousands of years, communications technology has long-term stagnation. Even foreign invasion, the border town emergency Apart from smoke signals alarm, the quickest way, but the inn Kuaima transfer instrument. The mid-17th century, today TodayOnHistory.com (history) British Navy launched a semaphore, the end of the 18th century, the French government established signal system, this solve the difficulties of the land and sea to quickly send a message to a certain extent.
communications technology critical change occurred in the mid-19th century. autumn
1832, one from France bound for the United States Postal liners, a young doctor function in explaining solenoid: "Recently many experiments demonstrated that the more wound coil of wire, the current through the wire When the attraction of the solenoid is also stronger. The experiment also proved regardless of how long the current wires may twinkling through. Soon science will produce electricity miracle of creation. " American Samuel Morse
here keep in mind live. Lenovo him what he saw from the French signal system, every time it could only vision clinics and Communications miles; if the current transmission of electromagnetic signals, it is not possible in the moment messaging thousands of miles away?
Since then, Morse life has undergone a fundamental change. (1 $ dj��.c��m) Morse was born in 1791 in a family pastor in the United States. Study of painting and sculpture in his youth, served over a number of arts organizations responsible for duties. He swore off the road covered with the Honor carpet art, steering is still in the the juvenile era of electricity, and the risk of failure in efforts to climb the peak of rugged technology.
trial telegraph, Morse life extremely hard and sometimes go hungry. He lives frugally, for the purchase of Experimental equipment. In 1836, he had to re-artist-speaking old industry to solve the problem of livelihood. But he never interrupt the research work.
unremitting efforts and the help of friends, Morse finally been successful. His use of alternating current energized and cut the signal, and the preparation of the codes represent letters and numbers, known as the Morse code. From 1837 to 1838, he made the telegraph a short distance from the transmitted signals.
long-distance test requires a lot of funds. Apply to Congress, the allocation of $ 30,000, and the construction of a telegraph line connecting Washington and Baltimore. Until two years later, in March 1844, Congress passed only appropriation. Telegraph line was finally completed. May
1844 Morse, 24, sitting in the Supreme Court Chamber of the Capitol in Washington, issued the first of a long-distance telegraph hand trembling with excitement, to 40 miles outside of Baltimore City.
Morse telegraph machine after many improvements, rapidly developed and applied. Since then, the outbreak of war, peace treaty concluded turmoil, the discovery of fish stocks ... all kinds of messages pass quickly by telegraph.
1858, many European countries combined sum of 400,000 francs bonus to Morse. Old age in Morse, in Central Park, New York City, to create for him a statue with a huge honor to compensation had The scientists trapped in the the hunger situation the fault.