Scottish-born Alexander Graham Bell speaking educators on March 7, 1876 the first telephone was invented and received a patent . Deaf studies related to vibration in the air with the sounds of Bella wondered how that had led him to . ” Harmonic telegraph” his name while working on a mechanism of electric current to resemble the vibration caused during a conversation I had found could have been changed . According to this principle invented the telephone was not working. 1876: Alexander Graham Bell and his assistant Watson made ??the first long distance telephone call . 3 km the distance between them . respectively. All -in-One: In Bell’s invention of the telephone device , resembling a trumpet mouthpiece was in one headset . When you talk to a person, the mouthpiece of the sound vibrates a diaphragm inside the device , subject to change vibration was transformed into an electric current . Buyer , from the opposite side of the stream , as a voice to be heard again by turning the vibration was getting . Wires: The first telephone cables using copper wire was covered with glass .

We will write a custom essay sample
on Invention of Telephone and Development or any similar
topic specifically for you

Hire Writer

In particular, the overhead lines because they are sturdy iron wires would be preferred . 1877 Bell’s invention not see Reputation: Professor Bell received a patent for the invention western- from Union telegram from the phone company offered to sell 100 thousand dollars . However, the company that ” are useless ridiculous idea ” come to the decision rejected the proposal . On top of that capital Bella who supported him in 1880 with the union of two partners founded the Bell Telephone Company 1877:

Thomas Edison in 1877, which is part of two separate phone for listening and speaking has developed tools . 1878: The first telephone directory was published in the New Heaven . Guide to the subscriber’s name and number 21 was written . 1885: Now the transmitter and the receiver ” receiver ” was combined in a single mechanism called . In the beginning of 1929 towards the handset with metal began tobe made of plastic . 1887: Phone first year in America was met with suspicion . Many people deafness of the sound from headphones or thought would lead to madness .

Page 2 Invention of Telephone and Development Essay

But at the end of telelo prevailed. In 1887, the number of telephone subscribers in America had exceeded150 thousand . 1892: Undertaker from Amon Strowger , an opponent of the telephone switchboard telephone line is busy working on his own that his wife and her husband was transferred to the customers noticed that their phone . Strowger very angry whereupon the officer the power plant will disable automatic dialing system found The first phone calls: The first phone calls were made through officials working at power plants .

Officials want to talk to the caller and the person who took the phone numbers , plugs and switches establishes the connection was through . 1902: Airborne radio waves to send messages to take advantage of the young Italian who came to believe mucid Marconi, in 1894 it was able to do in a room . Eight years later, 4,800 miles away from the radio signals sent out to the Atlantic Ocean . 20 years in radio who has created such a big meet up at the Marconi has introduced a new system would also provide the opportunity to communicate uninterrupted sea and on land .

See More on ,

Related Posts

Tiffany from New York Essays

Hi there, would you like to get such a paper? How about receiving a customized one? Check it out https://goo.gl/MdQVRT