The story about Edison

Edison, a great inventor who influenced the world. He couldn't read until 12 years old. He only stayed in a regular school for three months, and his math and reading and writing skills were poor, so he couldn't concentrate. He is a naughty problem child. He has dyslexia because he was hearing impaired when he was a child. Throughout his life, he had difficulty in writing and spelling.

Edison's earliest interest was chemistry. He collected about 200 bottles and saved every penny to buy chemicals and put them in bottles. /kloc-When he was 0/2 years old, he went to the train to sell newspapers to earn money.

186 1 American civil war broke out. Edison used the convenience of the train to run a tabloid to convey the war situation and news along the way. He is also a journalist, editor, typesetter, proofreader, printer and publisher. The tabloids are very popular, and he also gained talent, knowledge and experience from his intense work, and earned a lot of money to continue his chemical experiments.

Unfortunately, when he was doing an experiment on the train, the train suddenly bumped, causing a piece of phosphorus to fall on the board and cause burning. The conductor came to put out the fire and gave him a heavy slap, which made his left ear deaf. He was kicked off the train when Edison was 16 years old.

Frustration did not discourage Edison. He fell in love with the telegraph again. After repeated research, he invented the automatic power recorder at 1868, which was his first invention. Later, he invented two new types of telegrams. 1877, he invented the carbon telephone transmitter to make the original telephone sound clearer. In addition, he invented the phonograph. People call him a magician.

Edison died in 65438 at the age of 82. However, so far no one can break his record of holding 1093 invention patents, and people call him the king of invention.

Extended data:

Major achievements

First of all, the phonograph

1877, Edison found that the diaphragm in the telephone transmitter would vibrate with the voice of speech, so he took a short needle and did an experiment, from which he was greatly inspired. Edison asked his assistant to make a "strange machine" consisting of a big cylinder, a crank, a receiver and a diaphragm according to the pattern.

After the production, Edison took out a piece of tin foil and wound it on a metal cylinder engraved with spiral grooves. One end of the needle gently rubs the tin foil, and the other end is connected to the receiver. Then Edison shook his crank and sang to the receiver. Then he put the needle back, shook the crank again, and then the machine played back Edison's voice.

In February 65438, Edison publicly demonstrated this "tin foil cylinder phonograph", which caused a sensation all over the world.

Second, electric lights.

Edison didn't invent the electric light at first, but he improved it. As early as 180 1 year, a British chemist named humphry davy used platinum wire to electrify and glow in the laboratory.

1879 10, Edison finally succeeded in making an incandescent light bulb with carbon fiber as the filament, which is called "carbonized cotton filament incandescent lamp". Later, a large number of incandescent lamps were put into production, and companies were established to establish corresponding power stations, transmission networks and other infrastructure, which soon made electric lamps widely used in the United States.

During this period, he constantly improved his technology, and finally decided to use tungsten wire as the filament, which is called "tungsten lamp" and has been in use ever since, so Edison became a recognized inventor of electric lamp.

Third, movies.

1, movable movie camera

2. Movable film projector

3. Audio movies

People's Daily Online-19311010/8, American inventor Edison died.

Baidu Encyclopedia-Thomas Alva Edison