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New device of electromagnet

Views:4     Author:Site Editor     Publish Time: 2017-02-23      Origin:Site

                     

                              New device of electromagnet

In January 1838, Morse's 3 mile telegraph was a success. In April 1840, the invention was patented

May 24, 1844, is a glorious page in the history of world telecommunications. In the United States congress hall held a grand telegraph communication experiment. Morse turned on the power and sent to Baltimore the first telegraph in human history: "what a miracle God has done!" Morse's telegram finally succeeded!.

In May 24, 1844, it became an internationally recognized telegraph. Morse's telegram is simple, accurate and economical. Soon, his telegraph swept the globe. Today, the Morse code has become a basic communication method of modern telegraph communication.

The invention of the telegraph, opened the prelude to the telecommunications era, creating a human history of the use of electricity to transmit information. Since then, the speed of information transmission is greatly accelerated. "- tick - ring (1 seconds), information around the earth can be loaded with a telegram for people to transfer onto the 7 and a half circle. This speed is ever a communication tool as far behind.


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