Who invented the first gramophone record? Detailed answer

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Who invented the first gramophone record? Detailed answer

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Who invented the first gramophone record?

Thomas A. Edison invented LP recording in 1877 when he noticed two features of the sound. First, a small dial inside the handset vibrates when the person on the other end of the line is talking. Thus he had the idea of attaching a very small needle to the center of the disk, by means of which he could determine the amount of sound sent from outside. He also noticed that when paper telegraph tape with Morse code dots and dashes was passed at high speed through the apparatus, it produced a slight noise, much like the sound of human conversation. If a human voice could make a needle move, why couldn't the same needle pick up the pattern of sound waves on paper tape?

After several experiments, Edison replaced the paraffin paper with a metal cylinder. He wrapped a piece of tin foil around the cylinder and attached two discs of needles. One had to perceive the sound, the other - to reproduce it. When the first disc vibrated, the needle made small, winding scratches on the tin foil as the cylinder turned. When the "reading" needle moved along the same convolutions, its disk also vibrated, restoring sounds. Edison turned on the cylinder, leaned over the recording disc, and exclaimed, "Mary had a lamb!" (this is the beginning of a famous children's song). Then he brought the needle of the second disk into the same groove and turned the disk. The voice is back! He produced the first voice recording! This happened in 1877.

In 1895, a man named Emil Berliner put the first gramophone record on the market. It was a plate, not a cylinder, it was made of zinc and coated with wax. As the recording needle vibrated at the sound of the voice, it scratched a sinuous pattern into the wax. Then the plate was dipped in acid, which ate into the zinc in those places where the needle left grooves. Such was the way of recording the human voice and making gramophone records.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Which word was replaced with the word synagogue due to censorship in the film The Diamond Arm?

In the film "The Diamond Arm", the manager of the house, Plyushch, in a conversation with Gorbunkov's wife, says: "I won't be surprised if tomorrow it turns out that your husband is secretly visiting his mistress," while at the end of the phrase Nonna Mordyukova's articulation looks unnatural. The fact is that during the filming, she did not say "mistress", but "synagogue", which was not allowed in the final version due to censorship considerations.

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