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Information Name: | A large number of mobile phone battery recycling, battery recycling Zhengzhou phone, electronic Obo |
Published: | 2015-04-27 |
Validity: | 0 |
Specifications: | Limited |
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Detailed Product Description: | With the maturity of this great idea, Morse successfully with the current 'pass' 'off' and 'long break' instead of the human character is transmitted, which is famous Morse code. In 1843, Morse received $ 30,000 in funding, he used this money to build from Washington to Baltimore became a telegraph line, length of 64.4 kilometers. May 24, 1844, at a packed Capitol, the Morse with his hands trembling with excitement, manipulating him more than ten years of effort devoted to the successful development of the telegraph phone battery recycling, to 64 kilometers away in Baltimore sent the first telegraph God created human beings in the history of what a miracle! 'Invention of the telegraph, telecommunications era kicked off, creating a human use electricity to transmit information in history. Since then, the rate of information transfer greatly accelerated. 'Tick a despair' rang <1 second:! , Telegraph carrying information that people will be able to be transferred to one mile around -1.609344 kilometers. Ball took seven and a half laps, this speed is ever any kind of phone tools can not. Here, there is a story to be mentioned that, after 1912 'Titanic' number hit an iceberg, issued a telegram: '305, speed, we hit an iceberg. California 'No. liners' a few miles away' should be able to rescued hundreds of lives, but the radio operator on the ship is not how the current and Sonic together and achieve long-distance calls have been plaguing people. ^ American Alexander Bell is destined to accomplish this historic task, he systematically studied the human voice, vocal and acoustic vibration mechanism principle in the design of hearing aids for the deaf in the process, he discovered that current conduction and stop moment, the spiral coil issued a noise, this finding makes Bell whim, with a current strength of the sound to simulate changes in the size, and thus with the current transmit sound. From this point onwards, Bell and his assistant Wo Sente began the difficult process of designing phones. June 2, 1875, the final design and 沃森特 Bell model and ongoing improvements to the moment of final testing, 沃森特 put his ear to the closed door of another room ready to answer on the speakers, Bell When the final operation accidentally spilled sulfuric acid in her lap, and he cried in pain, Mr. Wo Sente, come help me ah! 'Did not think that these words through his experiments telephone spread work in another room, Mr. 沃森特 ears. Very common phrase, then, became the first human to a speech delivered by telephone and remember people in history. June 2, 1875, but also by people as a great day and to commemorate the invention of the telephone, but this place ^ Boston Court Road No. 109 US manned annals therefore, has its entrance still pinned bronze medals, engraved with the above: 'June 2, 1875 telephone born here. 'March 7, 1876, Bell invented the telephone to obtain patents, patent certificate number is 174655.1877 year, the second year of mobile phone battery recycling company after Bell invented the telephone, in Boston and New York to set up the first telephone line opened , 300 km away from the two. Also in that year, it was the first phone to "Boston Globe" Send the news, from the beginning of the era of the public to use the phone.内索尼 phone battery recycling a year, Bell installed a total of 230 calls, the establishment of the Bell Telephone Company, which is the predecessor of American Telephone and Telegraph Company. |
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You are the 12041 visitor
Copyright © GuangDong ICP No. 10089450, Shenzhen Electronic Technology Co., Obo All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility