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In 1877, Edison, known as the "world's king of invention", felt that it was difficult to give full play to his expertise in invention and manufacturing at the same time, so he sold his shares in the invention factory and invited all kinds of professionals to establish a research institute in Menlo Park, a suburb of New York. Edison's first invention in the institute was the charcoal microphone. Edison's charcoal microphone was originally inspired by Bell, the inventor of his same age.
Once, when Edison was debugging the microphone, because of his poor hearing, he used a short needle to test the vibration of the communication film, but unexpectedly a novel phenomenon appeared: as soon as the needle in his hand touched the communication film, with the change of the strength of the voice, a regular tremor occurred. This bizarre phenomenon inspired Edison's invention.
He thought, if the needle fluttered in reverse, wouldn't it be possible to regain the sound? In this way, the human voice can be stored. To this end, he began experiments.
It was the height of summer, the weather was hot and the mosquitoes were rampant. Edison couldn't care about this, and after four days and four nights of hard fighting, he finally designed the blueprint for the gramophone. On August 20, 1877, Edison handed over his drawings to a machinist.
The phonograph made according to the drawings is simple in structure. When someone sees this simple thing, it's hard to believe it can speak. Some people even joked that Edison was "making international jokes".
Edison gave a demonstration on the spot, he shook the iron handle with his hand, and sang into the receiver in a row: "Mary has a little white sheep, and its fluff is as white as frost" Then, Edison stopped, asked a companion to put his ear to the receiver, put the needle back in its original position, and shook the handle again, and the sound just now appeared in the companion's ear again. Everyone has nothing to say.
The advent of this phonograph is another great innovation in the history of electroacoustics after Bell's invention. At the time, Edison was only 30 years old. News of Edison's invention of the gramophone quickly spread, and people marveled at Edison's invention.
Newspapers and magazines also published articles praising his invention as "a miracle of the 19th century". His invention shook the whole world. There has been a controversy in history about the invention of the phonograph, and some people believe that the French physicist Charcrot should be the inventor of the phonograph, which was invented on April 16, 1877.
Crow was a destitute poet at the time, and after the drawings were designed, he had no money to invest in them. As a result, it is impossible to determine whether the machine will work once it is built.
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A phonograph is an electric device used to broadcast record recordings. Invented by American inventor Thomas Edison in 1877:
Gramophone records can be easily reproduced in large quantities and play back longer than most barrel recording media, which is why the phonograph is known as one of Edison's greatest inventions. Thomas Alvar Edison experimented with a short needle based on the phenomenon that the diaphragm plate in the microphone vibrates with the sound of speech, and got a lot of inspiration from it. The speed of speech can cause the short needle to vibrate accordingly.
Then, in turn, this flutter must also produce the original speaking sound. So, he began to study the problem of sound reproduction.
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The phonograph was invented by American inventor Thomas Edison in 1877 and is one of Edison's many great inventions.
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In 1857, the French inventor Scott invented the sonic vibrator, which was the earliest original tape recorder and was the ancestor of the phonograph.
1877 Edison invents a recording device. The sound waves can be converted into the vibration of a metal needle, and the waveform is then burned on the tin foil of the cylindrical wax tube. When the needle travels along the burned trajectory again, the sound left behind can be re-emitted.
The installation recorded the lyrics of "Mary Had a Little Lamb" read by Edison: "Mary held the lamb, and the hair of the lamb was as white as snow." A total of 8 seconds of sound became the first sound in the history of world recording.
1878 Edison founded a phonograph company to produce commercial tin foil phonographs. This is the world's first generation of sound carriers and the first commercial phonograph.
1885 American inventors Chichester Bell and Charles Thunter invented the gramophone, a device for recording audio using a round cardboard coated with wax.
In 1887, Emil Berliner, a German in the United States, obtained a patent for a phonograph, and successfully developed a disc record (also known as a butterfly record) and a flat phonograph.
1888 The world's first butterfly record and phonograph produced by Belina are exhibited in Philadelphia, USA.
In 1891, Bellina successfully developed a record made of shellac and invented a method for making records.
In 1895, Edison established the National Phonograph Company to produce and sell phonographs driven by clockwork.
In 1898, Berlina founded the British Gramophone Company in London and set up a factory in Hanover, Germany.
In 1898, the Danish engineer Poelson invented a magnetic tape recorder (steel wire tape recorder) that could be used in practical applications.
1912 Cylindrical recording is eliminated.
In 1924, Maxfield and Harrison successfully designed the electric singing chokehead and Bell Labs successfully made electrical recordings, and the recording technology was greatly improved.
1925 The world's first record player is born.
In 1931, the Radio Corporation of America (RCA) successfully trial-produced the 331 3-rpm LP LP.
In 1945, the British company used the pre-emphasis method to expand the range of high-frequency recording, and recorded a 78-rpm coarse record (standardplay, abbreviated as SP).
In 1948, Columbia began mass production of a new generation of 331 3 rpm microgrooves, which became an epoch-making event in the history of record development. RCA has also launched its own other system, the 45-rpm EP (Extended Play) to compete with it.
1935 General Electric Company in Berlin, Germany, successfully developed a tape recorder using plastic tape.
1963 Production of audio cassette tapes in the Netherlands. The ** years of records are gradually passing.
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It was invented by Edison in 1878.
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Thomas. Invented by Edison.
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Thomas Alvar Edison also improved the large cylinder and small crank on the gramophone into a device similar to a clock clockwork, and the motor drove a thin wax disc to rotate, and the gramophone became widely popular. Vannich wifi classical phonograph, a combination of contemporary technology and classical.
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The name is Edison, and as for whether it is Edison himself, there is still some evidence, one thing is certain, someone invented it in Edison's laboratory.
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In the summer of 1877, Edison envisioned a machine with recording and playback functions. In December 1877, Edison further proposed the specific structure of the machine after repeated ideas, and drew it into drawings and handed it over to skilled craftsmen to make. A craftsman named Uggie spent 30 hours making drawings of Edison's phonograph into an actual machine.
However, the first phonograph had a number of flaws, the sound was so weak that it was almost impossible to discern the sound it produced; Therefore, Edison continued to improve the phonograph until 12 years later, in 1898, Edison invented the factory to build a perfect phonograph, and won the gold medal.
It's a copy, but it seems to be true.
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The phonograph is one of Edison's many great inventions, invented in 1877.
A phonograph, also known as a record player, is a sound playback device in which the sound is stored in an arc-shaped groove that is acoustically carved into the plane of a record (disc). The record is placed on a turntable and rotated under the stylus. Because records can be easily reproduced in large quantities, they also take longer to play back than most cylindrical recording media.
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In the autumn of 1877, Edison's invention of the gramophone caused a sensation throughout New York, and reporters from various newspapers poured into the news like a lake to report this great news. When these terms were repeated word for word from the machine, people believed that the thing was indeed not false, and it was so strange that the newspapers called the gramophone a miracle of the 19th century.
Due to the large size, inconvenient to use, and easy to appear unreliable, so the market is basically unavailable, small and reliable tape recorders, voice recorders and other equipment has been the main medium of ordinary people's "phonograph".
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Year 1877.
American "King of Inventors" Edison.
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