You are the man who invented the telephone. He was born in England in 1847. When he was young, he and his father were involved in teaching deaf and dumb people. He once wanted to build a machine that would allow deaf and dumb people to see sounds with their eyes.
In 1873, Bell, who became a professor at Boston University in the United States, began to study a device for transmitting many telegrams on the same line - multiplex telegraphy, and came up with the idea to use electric current to transmit people's telegrams. The sound of words carries thoughts far away, allowing people thousands of miles apart to have a conversation as if they were face to face. So Bell started researching phones.
It was June 2, 1875. Bell and his assistant Watson were in two rooms respectively.
Experimenting with the multiplex telegraph machine. An accident inspired Bell to. The telegraph in Watson's room
There was a spring stuck to the magnet. When Watson opened the spring, it vibrated. At the same time, Bell was surprised to find that the telegraph spring in his room was vibrating and emitting a sound. It was the current that transmitted the vibration from one room to another. Bell's mind suddenly opened and he thought: If a person speaks to a piece of iron, the sound will make the piece of iron vibrate if a piece of metal is placed behind the piece of iron. the vibration of the iron piece will inevitably produce a current, sometimes large and sometimes small, in the coil of the electromagnet. If this fluctuating current is transmitted to a distant location along the wire, won't the same vibration and sound be produced on a similar device at a distance? In this way, the sound travels far along the wire
. Isn’t this the phone call you’ve been dreaming of!
Bell and Watsonmade a phone according to the new idea. During one experiment, a drop of sulfuric acid splashed on Bell's leg, causing him to scream in pain: "Mr. Watson, I need you, please come to me!" »
This sentence was transmitted from the phone. to Watson's ears by wire. The phone call was successful! On March 7, 1876, Bell became the holder of the patent for the invention of the telephone.
Bell obtained 18 patents during his lifetime and collaborated with others to obtain 12 patents. He planned to bury telephone wires underground or suspend them in the air, and use them to connect houses, villages, factories...
In this way, direct telephone calls could have gone anywhere. Today, Bell's vision has long become a reality.
Guo Ning
Today, telephones have entered thousands of homes. Do you know who invented the telephone?one ?
Bell is the man who invented the telephone. He was born in England in 1847. When he was young, he and his father were involved in teaching deaf and dumb people. He once wanted to build a machine that would allow deaf and dumb people to see sounds with their eyes.
In 1873, Bell, who became a professor at Boston University in the United States, began to study the multiplex telegraph, a device for transmitting several telegrams on the same line. He also had the idea of. use electric current to send people's voice transporting thoughts to distant places, allowing people thousands of miles away from each other to speak face to face. So Bell started researching phones.
It was June 2, 1875. Bell and his assistant Watson were in two rooms respectively.
Experimenting with the multiplex telegraph machine. An accident inspiredBell at . The telegraph in Watson's room
There was a spring stuck to the magnet. When Watson opened the spring, it vibrated. At the same time, Bell was surprised to find that the telegraph spring in his room was vibrating and emitting a sound. It was the current that transmitted the vibration from one room to another. Bell's mind suddenly opened and he thought: If a person speaks to a piece of iron, the sound will make the piece of iron vibrate if a piece of metal is placed behind the piece of iron. the vibration of the iron piece will inevitably produce a current, sometimes large and sometimes small, in the coil of the electromagnet. If this fluctuating current is transmitted to a distant location along the wire, won't the same vibration and sound be produced on a similar device at a distance? In this way, the sound travels far along the wire
. Isn’t this the phone call you’ve been dreaming of!
Bell et Watson made a telephone according to the new idea. During one experiment, a drop of sulfuric acid splashed on Bell's leg, causing him to scream in pain: "Mr. Watson, I need you, please come to me!" »
This sentence was transmitted from the phone. to Watson's ears by wire. The phone call was successful! On March 7, 1876, Bell became the holder of the patent for the invention of the telephone.
Bell obtained 18 patents during his lifetime and collaborated with others to obtain 12 patents. He planned to bury telephone wires underground or suspend them in the air, and use them to connect houses, villages, factories...
In this way, direct telephone calls could have gone anywhere. Today, Bell's vision has already become a reality.