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Why Alexander Graham Bell invented the telephone?
In the mid-1870s, Bell wanted to build a phonautograph, but he wanted it to approximate a human ear to test whether the sound waves could transform into recognizable symbols. The idea was that the device would help the deaf “see” the sound of words.
How did Alexander Graham Bell’s first telephone work?
The first telephone had two parts: a transmitter and a receiver. The needle was connected by wire to the battery, and the battery was connected by wire to a receiver. When Bell spoke into the open end of the drumlike device, his voice made the paper and needle vibrate.
Who invented phone Alexander?
Alexander Graham Bell
Alexander Graham Bell was a Scottish-born scientist and inventor best known for inventing the first working telephone in 1876 and founding the Bell Telephone Company in 1877. Bell’s success came through his experiments in sound and the furthering of his family’s interest in assisting the deaf with communication.
How was the first phone made?
The first simple telephones, which were comprised of a long string and two cans, were known in the early eighteenth century. A working electrical voice-transmission system was first demonstrated by Johann Philipp Reis in 1863. His machine consisted of a vibrating membrane that opened or closed an electric circuit.
Who was the first person to invent the telephone?
Answer Alexander Graham Bell is often credited with being the inventor of the telephone since he was awarded the first successful patent. However, there were many other inventors such as Elisha Gray and Antonio Meucci who also developed a talking telegraph. First Bell Telephone, June 1875.
How old was Alexander Graham Bell when he invented the telephone?
On this day in 1876, 29-year-old Alexander Graham Bell receives a patent for his revolutionary new invention–the telephone.The Scottish-born Bell worked in London with his father, Melville Bell, who developed Visible Speech, a written system used to teach speaking to the deaf.
Where was the first automatic telephone exchange invented?
Exchanges and Rotary Dialing. Strowger was issued a patent on March 11, 1891, for the first automatic telephone exchange. The first exchange using the Strowger switch was opened in La Porte, Indiana, in 1892. Initially, subscribers had a button on their telephone to produce the required number of pulses by tapping.
How did Thomas Watson come up with the idea of the telephone?
On June 2, 1875, while experimenting with his harmonic telegraph, the men discovered that sound could be transmitted over a wire. It was a completely accidental discovery. Watson was trying to loosen a reed that had been wound around a transmitter when he plucked it by accident.