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Did you know that the credit invented the phone back to the the scientist Alexander Graham Bell. On 2 June 1875, Bill was tested in Boston, the idea of sending several messages Telegraph on the same line at the same time.

Was used Steel tubing. He worked with the receiving device in one room, while his assistant Thomas Watson runs a transmitter in the other room.


Watson picked up steel rod to make it oscillate, fired a ringing voice. Suddenly Bill hustling income, shouting to his friend Watson: Do not change anything. What did you do then? Let me see. He found that a vibrating steel rod above the magnet has caused a strong current flows through a variety tape. This is what makes the Tube in Chamber Bill fluctuate and issued a ringing voice.


The next day was made ​​the first telephone and voice votes can be identified via the first telephone line, which was top of the building down to two floors and was the first phrase heard on the phone on 10 March  of the following year: Mr Watson, come here, I want you.

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