1. The story of a celebrity's gizmo

The invention of the saw

You may still remember the article in the primary school textbook about the invention of the saw by Lu Ban. Legend has it that one year Luban accepted a big task-building a big palace. This requires a lot of wood, but the project deadline is very tight. Luban's disciples went up the mountain to cut wood every day, but there was no saw at that time, so they had to cut it with an axe. The efficiency was too low, and the disciples were exhausted every day, but the wood was still far from enough, which delayed the progress of the project. At that time, failure to complete the task of slave owners was severely punished. Lu Ban was very anxious and went up the mountain to inspect it himself. When going up the mountain, he occasionally pulled a handful of weeds growing on the mountain, and his hand was cut at once. Lu Ban wondered why a small blade of grass was so sharp. He broke down the grass and observed it carefully. He found that there were many small teeth on both sides of the grass, and his hand was cut by these small teeth. Since the teeth of the grass can cut my hand, the iron bar with many small teeth should be able to saw through the tree. So, with his idea and the help of metal craftsmen, Lu Ban made the world's first saw-an iron bar with many small teeth. He used this simple saw to saw trees, which was really fast and labor-saving, and the saw was invented. No matter whether this story is true or not, we can get such an inspiration from this story: practice leads to true knowledge and research leads to wisdom.

Everyone's success has internal and external influences. The continuous progress of Luban craft can not be separated from his own efforts and the help of his family. Lu Ban was born in a family of artisans for generations. Since childhood, he has participated in many civil construction projects with his family, gradually mastered the skills of productive labor and accumulated rich practical experience.

2. short story of celebrity's invention

In 1752, Franklin, a 46-year-old American scientist, made a kite out of silk, and put the kite into the sky with twine in a stormy weather school. The lower end of twine was tied with a metal key, and when the twine was wet by rain, it became a conductor. At this time, he put his hand close to the key and suddenly saw the electric spark jump between the key and his finger. At the same time, his finger felt a sharp pain. This experiment proves that thunder in the sky is actually a large-scale discharge phenomenon. From this, Franklin thought that if a metal wire is installed in a tall building and the lower end of the wire is grounded, according to the principle of tip discharge, the danger of lightning strike to the building can be avoided. This led to the invention of lightning rod. Because of the invention of lightning rod, the world in which human beings live is a little safer.

3. Stories of famous people inventing things

Edison invented the electric light bulb.

4. The story of China celebrities inventing things is short and urgent! ! ! ! ! ! ! ! !

Cai Lun invents papermaking

5. Celebrities invent short stories

When Luban climbed the mountain, his hand was scratched by a grass, and then he observed the grass, and found that the edges of the grass leaves had fine tooth saws, so he invented the saw.

Edison was born in a humble background and lived in poverty. His "education" was only three months of primary school in his life. Because the teacher was always tongue-tied by his strange questions, he even said to his mother that he was a fool and would not have any future. Although Edison did not receive a good school education, he achieved great success with personal struggle and extraordinary intelligence, self-confidence, self-reliance and self-reliance. Self-taught, he stood up from thousands of failures with perseverance, rare enthusiasm and energy, overcame countless difficulties and became an American inventor and entrepreneur. He invented the automatic telegraph and the phonograph; Experiment and improve the electric light (incandescent lamp) and telephone. In his life, there was a new invention every 15 days on average, so he was known as the "king of inventions".

6. Summary of short stories invented by celebrities 15

As early as 1821, British scientists David and Faraday invented an electric lamp called an arc lamp. This kind of electric lamp uses carbon rod as filament, although it can emit light, but the light is dazzling and its life is short.

So Edison began to experiment with materials as filament. With great perseverance and patience, Edison tried more than 1,6 kinds of materials, using carbon strips, platinum wires, ruthenium, chromium and other metals as filaments, all of which ended in failure. In the face of failure and the cynicism of some people, Edison did not retreat. After 13 months of hard work, Edison tried more than 6, kinds of materials and more than 7, times. Finally, he found that cotton thread could be used as a filament, and it was lit for 45 hours before the filament was burned out. This is the first electric lamp with practical value. This day ── October 21st, 1879, was designated as the electric light invention day. After further experiments, Edison found that bamboo filament was very effective, the filament was durable, and the light bulb could light for 12 hours. Since then, electric lights have begun to enter the homes of ordinary people.

Since then, people have been using this kind of light bulb with bamboo filament. Decades later, it was improved, that is, tungsten wire was used as the filament, and inert gas nitrogen or argon was filled into the bulb. In this way, the life of the light bulb has been extended a lot. This is the kind of light bulb we are using now.

7. Stories of famous people inventing things

Stories of famous people inventing things include:

1. Edison invents electric light

American inventor Edison. They are children of railway workers, who drop out of school before finishing primary school and sell newspapers on the train for a living. Edison is an extremely diligent person, who likes to do all kinds of experiments and make many ingenious machines. He was interested in electrical appliances. Since Faraday invented the electric motor, Edison was determined to make electric lights and bring light to mankind.

Edison made a detailed test plan after carefully summarizing the previous failure experience in manufacturing electric lamps, and conducted experiments in two aspects: one was to classify and test more than 1,6 different heat-resistant materials; The second is to improve the evacuation equipment to make the bulb have a high vacuum degree. He also studied new generators and circuit shunt systems.

Edison tested more than 1,6 kinds of heat-resistant luminescent materials one by one. Only platinum wire has good linear energy, but platinum is surprisingly expensive. We must find a more suitable material to replace it. In 1879, after several experiments, Edison finally decided to use carbon filament as filament. He sprinkled a piece of cotton silk with carbon powder, bent it into a horseshoe shape, put it in a crucible for heating, made it into a filament, put it in a light bulb, and then pumped the air out of the light bulb with an air extractor. When the light came on, it could be used continuously for 45 hours. In this way, the world's first batch of carbon filament incandescent lamps came out. On New Year's Eve in 1879, Lopark Street, where Edison Electric Company was located, was brightly lit.

In order to develop electric lamps, Edison often worked for more than ten hours a day in the laboratory, and sometimes experimented for several days. After he invented carbon filament, he successively experimented with more than 6, kinds of plant fibers. Finally, he chose bamboo filaments, burnt them in a high-temperature closed furnace, and then processed them to obtain carbonized bamboo filaments, which were put into a light bulb, again improving the vacuum degree of the light bulb, and the light bulb could be continuously lit for 1,2 hours. The invention of the electric light once caused the gas stock to plummet by 12% in three days.

After Edison, in 199, American Ke Renqi invented tungsten wire instead of carbon wire, which greatly increased the efficiency of electric lamps. Since then, electric lights have leapt to a new level, and fluorescent lamps and iodine tungsten lamp lamps have mushroomed on the lighting stage.

(7) Extended reading of stories about famous people inventing things:

1. Invention is the process and achievement of applying natural laws to solve unique problems in the technical field and putting forward innovative schemes and measures. Products were invented to meet the needs of people's daily life. The results of the invention either provide an unprecedented model of artificial natural objects, or provide new technologies and methods for processing and manufacturing.

innovation and transformation of machinery and equipment, instrumentation and various consumer goods, as well as related manufacturing processes, production processes and detection and control methods, all belong to inventions.

2. It refers to four inventions in ancient China that had great influence on the world. Namely papermaking, compass, gunpowder and movable type printing.

(1) the invention of papermaking: it provided economical and convenient writing materials for human beings and set off a revolution of human writing carrier.

(2) The appearance of printing accelerated the spread of culture and changed the situation that only the upper class in Europe could read.

(3) The invention of the compass provided important conditions for European navigators to sail around the world and discover America, which promoted the development of world trade.

(4) The invention of gunpowder weapons: changed the way of fighting, helped the European bourgeoisie to destroy feudal fortresses, and accelerated the historical process in Europe.

8. The short story of celebrity's invention and discovery

Edison invented the electric light bulb

Edison and his assistants tried it several times with platinum, but this kind of platinum with high melting point prolonged the light-emitting time of the electric lamp a lot, but it was still not ideal to automatically extinguish it from time to time and then automatically emit light.

Edison was not discouraged and continued his experiment. He tried barium and titanium successively. The results were not very satisfactory.

Next, he and his assistants began to test the 16 kinds of heat-resistant materials in different categories, and platinum was the most suitable one. Because of the improved pumping method, the glass bulb was vacuumed. The life of the lamp has been extended to 2 hours. But this kind of lamp made of platinum is too expensive. Who is willing to spend so much money to buy an electric lamp that can only last for 2 hours?

When Edison saw this scarf made of cotton yarn, an idea suddenly came to Edison's mind:

Yes! The fiber of cotton yarn is better than that of wood. Can you use this material?

He tore off a cotton yarn from his scarf and carefully put it into a glass bulb. The effect was really good.

Edison was very happy. He made many carbon yarns made of cotton yarn and made many experiments. The life of the light bulb was extended by 13 hours, and then reached 45 hours.

"I hope it can light for 1 hours, preferably 16 hours!" Edison said.

Finally, Edison chose bamboo. First, he took out a piece of bamboo, put it into a glass bulb, and after the electricity was turned on, the bamboo filament light bulb was continuously lit for 12 hours!

He finally made the electric light he was satisfied with.

9. The story of celebrity's discovery and invention is short.

1. The phonograph was born

One night in December 1877, the staff of Mengluoyuan Laboratory trembled slightly, not because of the cold, but because they heard the recording for the first time in human history: "Ma Mei has a little sheep whose fur is as white as snow, and wherever Ma Mei goes, the lamb is always beside her …". France * * *, and therefore awarded the title of Sir Edison. Later, Edison improved the phonograph many times until the drum type was changed to bakelite turntable type, which was not just one or two years, but after decades of continuous improvement.

2. Copying machine

At first, Edison invented paraffin paper, which was only widely used in the packaging materials of food and candy. Later, he tried to carve the outline of words on the paraffin paper to form a paraffin lettering paper plate, put white paper under the paper plate, and then rolled it from the lettering paraffin paper with an ink roller. A wonderful thing happened, and clear handwriting appeared on the white paper. After many improvement experiments.

In 1976, Edison began to produce the copier he invented, and all of a sudden, institutions, schools, institutions and organizations all adopted this kind of stencil mimeograph. Because Edison's copier was so popular and popular all over the world, Edison deeply realized that people should invent something that people generally and deeply needed.

3. Newton

Newton was alone in the orchard at home. As he was thinking while walking, he accidentally bumped into an apple tree in the garden. At this moment, an apple hit Newton right on the head. Newton suddenly woke up from the problem and picked up the apple. At this time, he fell into another problem: why did the apple fall to the ground instead of floating in the sky? Finally, Newton put forward a universal law of the simplest phenomenon: gravity.

4. Leonardo da Vinci

When referring to Leonardo da Vinci and his inventions, you'd better ask such a question: "What didn't he invent?" Because he invented so many things. There are many design drawings in Leonardo da Vinci's work log, but the most noteworthy one is the design of calculator. Imagine what science would be like without simple and complicated mathematical operations.

Leonardo da Vinci is the originator of the Renaissance. He can paint (such as the masterpiece Mona Lisa), sculpt and invent. His diary, which has fascinated the whole world so far, depicts many things from human bodies to helicopters and tanks.

Leonardo da Vinci's diary is more than 13, pages long, which still affects scientific research. In 25, a British surgeon used the method designed by Leonardo da Vinci to perform heart repair surgery, which was surprising in itself. It would be amazing if you knew that Leonardo da Vinci had no idea about the working mechanism of the human circulatory system at that time.

5. alexander bell

"Can you hear me?"

"yes!"

We can hear each other, thanks to the telephone invented by alexander bell. There are so many telephone providers now, but it is alexander bell's credit that has created the world's first (and most powerful) telephone company-Bell Telephone Company.

Bell is not just a lone wizard. His research ideas involve air conditioning (in fact, he built the original air conditioning system in his own room), hydrofoil and the concept of magnetic storage of information (which led to an innovative invention-computer) that had never been seen before.

alexander bell was also the inventor of the world's first metal detector. He assembled this device to find bullets in the body of American President James Garfield. As a result, the detector did work, but the position of the bullet could not be determined, because President Garfield was lying on a metal shelf during the inspection.

(9) The short story of famous people inventing things expanded reading:

The invention of lightning rod:

There is a well-known story about the invention of lightning rod in history. In 1752, Franklin, a 46-year-old American scientist, made a kite out of silk and put it into the sky with twine in a stormy weather. The lower end of twine was tied with a metal key, which became a conductor when the twine was wet by rain.

at this moment, he put his hand close to the key, and suddenly saw the electric spark jump between the key and his finger, and at the same time, his finger felt a sharp pain. This experiment proves that thunder in the sky is actually a large-scale discharge phenomenon. From this, Franklin thought that if a metal wire is installed in a tall building and the lower end of the wire is grounded, according to the principle of tip discharge, the danger of lightning strike to the building can be avoided.

this led to the invention of lightning rod. Because of the invention of lightning rod, the world in which human beings live is a little safer. The invention of lightning rod seems to be an even one.