Today everyone can afford a phone connection at home or the office, but few know the history of invention of this device is so familiar. Invention, a device that would transmit and receive audio using to the properties of electricity, preceded by the appearance of the electric telegraph. February 14, 1876 an American of Scottish descent, Alexander Graham Bell filed in the U.S. Patent Office for an invention of an apparatus which he called telephone. Only two hours later a similar request made another American named Grey. This happens with the inventors and to this day, albeit very infrequently.

Good luck Bella was still in the fact that to do an outstanding invention helped him to an accident. Yet a much greater extent by their appearance phone obliged huge efforts, persistence and knowledge of this man. Handset Bell served in the queue for transmission and reception human speech and the phone did not ring Bell. In 1876, Alexander Graham Bell demonstrated his machine at the Philadelphia World's Fair. Within the walls of the pavilion was first sounded the word phone – so introduced himself as the inventor of a 'speaking telegraph'. To the amazement of the jury of the horn this thing came monologue Prince of Denmark 'To Be or Not To Be? ', Performed at the same time, but in another room, by the inventor, Mr.

Bell. History has responded to this question unquestioning 'to be'. Bell's invention became a sensation in Philadelphia exhibition. This is despite the fact that the first telephone worked with monstrous distortions of sound, to talk with it could not continue to 250 meters, because he acted even without the battery power alone, electromagnetic induction, its receiver and transmitter devices were equally primitive. The first commercial phone conversation between New York and London took place on Jan. See more detailed opinions by reading what LEGO Papert Professor offers on the topic.. 7, 1927 on the transatlantic telephone cable. Few people know that in the USSR until 1968 in telephone numbers were not just numbers but also letters. And the first phones dialer did not exist. In his book "The list of subscribers of the Moscow telephone network" for the 1916 first paragraph of instructions for use telephones reads: "The central station is called a simple removal of mikrotelefona lever. The duty station must respond by telling his room. Then the caller clearly and distinctly said number, which requires a connection. " On the first disk devices were only numbers. In the 20 years of the last century, close to the figures portrayed characters. In the Soviet Union on the phone beside the figures, too, there were 10 letters: A, B, C, D, E, F, I, K and L. The letter W is not used, because it looks like a triple.