Who invented the first telephone?

Question 1: Who invented the first telephone in the world? German teacher Reiss 1863 Design In today's society, telephone has become an indispensable part of people's lives. So, who invented the first telephone in the world? Many people may say, of course, it is a famous clock! It has been clearly written in the middle school textbook for a long time. Actually, it's not. At present, some documents declassified by the British Science Museum for the first time show that the "father of the telephone" in the world should be a German science teacher, not Bell, as people have always believed. The history of human telephone development should change this mistake. As early as 13 years ago, according to the British "Daily Telegraph" on June 65438+February 1, Livn, director of the London Science Museum, said a few weeks ago that he accidentally discovered a batch of documents that had been kept in the museum in secret. As a result, a very shocking fact came out: the inventor of the world's first telephone should be German Philip? rice. Levin revealed that these documents, first published in 1947, recorded in detail a series of telephone tests conducted in Britain at that time. Those experiments have clearly proved that the telephone designed and invented by German teacher Reiss 1863 can work completely, which is 13 years earlier than that invented by Bibel 1876, so he is the real "father of telephone" in the world. In these secret documents, engineers from the British Standard Telephone and Cable Company (STC) said that after experiments, they found that Rice's telephone made of raw materials such as wood, sausage film and metal sheet can completely transmit information. Although the signal is weak and the efficiency is low, the voice on the phone is very clear. Therefore, it can be concluded that Rice's simple device is the earliest telephone in the world. This secret has been hidden for nearly 50 years. The curator of the museum disclosed the facts. However, according to Livin, this secret has been hidden for nearly 50 years for some commercial reasons. As the above research materials were sent to the Science Museum, Frank, the head of the British Standard Telephone and Cable Company, ordered that all these documents be marked as "confidential". It is reported that the British Standard Telephone and Cable TV Company was not allowed to disclose this secret, because they were in commercial negotiations with AT&T Company at that time, which was a very direct motive. It is reported that the British Standard Telephone and Cable TV Company has been very concerned about this secret, and later it has recovered these confidential documents. However, at 1955, all the documents were sent back to the museum again. Finally, the current curator Liv discovered them and revealed this amazing fact.

Question 2: Who invented the first telephone in the world? 1957 invented by Scottish youth Bell and his assistant Watson.

Question 3: Who invented the earliest telephone >< The earliest inventor of the telephone in the world was antonio meucci. At present, the recognized inventor of the telephone is Bell, who applied for the telephone patent right in the US Patent Office on February 1876. In fact, just two hours after he applied, a man named E Gray also applied for a telephone patent. The inventor of the telephone was not Alexander Graham Bell, a Scotsman, but an American poor Italian immigrant to antonio meucci. 1 13 years after meucci's death, history finally made a fair judgment. He was the inventor of the telephone. Antonio meucci was born in Florence on 1808. Immigrated to Cuba in the 1968-1930 s and to the United States in the 1950 s. He studied mechanical engineering at Florence Art Institute, and when he worked as a stage technician at Pergola Theatre, he designed an original device to help people speak. During his emigration to Cuba, meucci discovered that sound can pass through copper wire in the form of electric pulse when he was studying electric shock therapy, which aroused his great interest and tried to explore the mystery. However, it was not until 1850 that meucci moved to new york that this study officially began. After his wife was paralyzed by illness, meucci made a device to connect her bedroom with his nearby studio. 1860, he announced this device. He wants to continue his in-depth research, but there is no source of research funding. Meucci lived in poverty when he immigrated to the United States. In desperation, meucci sent his equipment to a thrift store and sold it for $6. Later, meucci gave up the prototype and began to make new telephones. Finally, in 187 1, he made an "inductor" wrapped in the iron core in the form of a cylinder. Meucci's invention was very successful, but unfortunately, he couldn't afford the patent fee of $250 to apply for a patent for his baby. He has to submit a patent notice for "talking telegraph" for one year, but he can't even get 10 dollars after three years, so he can't update this notice. So he sent a prototype and related technical details to the Western Union Telegraph Company. But no one in the company knows Pearl, and these materials are lost. Two years later, Bell, who once shared a laboratory with meucci, applied for a telephone patent. Meucci was very angry about Bell's fraud and immediately filed a lawsuit against Bell. However, due to the death of 1889 meucci, the lawsuit ended. It was not until June 16, 2002, under the strong appeal of historians and Italian-Americans, that the US Congress finally recognized the history of 1860 in which Mayucci exhibited "the telephone" in new york, and pushed Bell out of the position of the inventor of the telephone.

Question 4: Who invented the earliest telephone in the world? At present, the recognized inventor of the telephone is Bell, who applied for the telephone patent right in the US Patent Office on February 1876. In fact, just two hours after he applied, a man named E Gray also applied for a telephone patent. Before the two of them, many people in Europe were already doing ideas and research in this field. As early as 1854, the telephone principle was conceived by the Frenchman Bausal, and the idea was repeated by the German rice six years later. The principle is that two thin metal sheets are connected by wires. When one side makes a sound, the metal plate vibrates and becomes electricity, and the electricity is transmitted to the other side. But this is just an idea. The problem is the structure of microphone and receiver, and how to convert the mechanical energy of sound into electrical energy and transmit it. At first, Bell used electromagnetic switches to form on-off pulse signals, but this method obviously didn't work for such high-frequency sound waves. The final success came from an accidental discovery. 1June 2, 875, in an experiment, he connected a metal plate to an electromagnetic switch. Unexpectedly, in this state, the sound becomes a wonderful current. According to the analysis principle, the original metal sheet induces current in the connected electromagnetic switch coil due to sound vibration. Now it seems that this principle is known to all students who have studied junior high school physics, but it is undoubtedly a very important discovery for Bell at that time. Gray's design principle is different from Bell's, which uses the resistance change of the liquid inside the microphone, while the receiver is exactly the same as Bell's. 1877, Edison obtained the invention patent of carbon particle microphone. At the same time, many people have made various improvements to the way the telephone works. The patent dispute is complicated, and it didn't come to an end until 1892. One of the reasons for this situation was that the largest Western Union telegraph company in the United States bought the patents of Gray and Edison at that time and confronted Bell's telephone company. Due to the long-term patent dispute, the two sides reached an agreement. Western Union Telegraph Company fully recognized Bell's patent right and never set foot in the telephone industry again. In exchange, it shared 20% of Bell's income in 17. In the decades after the invention of the telephone, a large number of patents were applied around the operation and technology of the telephone. Strowger's "automatic dialing system" reduces all kinds of problems caused by manual wiring, the application of dry battery reduces the volume of telephone, and the application of loading coil reduces the signal loss of long-distance transmission. 1906, Li De invented the electronic test tube, and its amplification function led the direction of telephone service. Later, Bell Telephone Laboratory made an electronic triode based on this, and this research is of great significance. 1915 65438+1On October 25th, the first cross-regional telephone line was opened between new york and San Francisco. It uses 2500 tons of copper wire, 6.5438+0.3 million telephone poles and numerous load coils, and also uses three vacuum tube amplifiers along the way to strengthen the signal. On July 1948, scientists at Bell Laboratories invented the transistor. This is not only of great significance to the development of telephone, but also has great influence on all aspects of human life. In the following decades, a large number of new technologies appeared, such as the production of integrated circuits and the application of optical fibers, which played a very important role in the development of communication systems. Telephone After the Opium War in China, while the western powers plundered land and wealth in China, they also brought modern postal services and telecommunications to China. 1900, the first local telephone in China came out in Nanjing; 1904 to 1905, the Russian side set up a radio station from Yantai to Niuzhuang. The ancient postal system and non-governmental communication institutions in China have been gradually replaced by advanced postal services and telecommunications. During the Republic of China, China's post and telecommunications were still under the control of western powers. Coupled with years of war, communication facilities are often destroyed. During the War of Resistance against Japanese Aggression period, the Japanese imperialists reformed and expanded the telecommunication network system for the need of war and the purpose of trying to rule China for a long time. They took advantage of China's backward economy and technology and the corruption of the political system at that time to control the telecommunications industry in China from the aspects of technology, equipment, maintenance and management. Before 1949, China's telecommunications system developed slowly. By 1949, the telephone penetration rate in China was only 0.05%, and there were only 260,000 telephone users. After 1949, the central people quickly resumed and developed communications. The Beijing Telegraph Building, completed in 1958, became an important milestone in the development history of new China communication. Ten years of "Cultural Revolution", post and telecommunications suffered another blow, and business development stagnated. By 1978, the national telephone penetration rate is only 0...> & gt

Question 5: Who invented the first telephone and which country did he come from? The first telephone was invented by an Englishman, Bell.

Question 6: Who invented Edison, the first telephone in the world?

Question 7: When was the first telephone invented in the world? The inventor of the telephone is Antonio? Meucci. But what about Alexander? Bell obtained the patent right of the first available telephone in the world, and the invention time was1March 876 10.