High heels
A Venetian businessman in the 15th century often had to go out to do business, but he was worried that his wife would go out to have a romantic affair. One rainy day, he was walking on the street and the heels of his shoes were stained with mud. , so it was difficult to walk. The businessman was inspired by this, because Venice is a water city and boats are the main means of transportation. The businessman believed that his wife would be unable to walk on the springboard wearing high heels, so he could trap her at home.
Unexpectedly, his wife felt very novel when she put on these shoes, so she was accompanied by a servant, boarding and disembarking, and played around. The high heels made her more graceful, and fashionable ladies followed suit, and the high heels soon became It became popular everywhere.
Raincoat
In 1747, French engineer Fran?ois Freno made the world’s earliest raincoat.
He used the The latex obtained from rubber wood can be waterproofed by dipping cloth shoes and coats in this latex solution.
McIntosh's life at the Scottish Rubber Factory Embarrassed and unable to buy rain gear, he had to commute to get off work in the rain every rainy day. One day, he accidentally stained his clothes with rubber juice and couldn't wipe it off, so he had to go home wearing the dirty clothes. It was raining outside, and the wheat When Jintosh returned home, he was pleasantly surprised to find that the clothes he was wearing were not wet at all. He simply smeared rubber juice all over his clothes. This was the world's first tape raincoat.
Razor
In 1828, Sheffield made a blade with a protected side, which was the predecessor of the safety blade.
In 1895, Gillette, an American salesman, met the inventor Painter Payne by chance. Because he wanted to make a lot of money, he wanted to invent something that everyone needed and could be used once.
One day, Gillette was shaving and found that the razor blade was suitable for this idea. He designed a safe The razor clamping handle was used, but he could not find a manufacturer that could make a thin blade. In 1901, he met the machinist Carson and solved the technical problem, integrating the hoe-shaped tool holder with the double-edged replaceable blade, and applied for Patented.
As early as 1900, the electric shaver had been patented in the United States, but the first electric shaver suitable for commercial manufacturing was designed by retired U.S. Army Colonel Hick. Patented in 1928.
Mirrors
Our ancestors made exquisite "light-transmitting mirrors" more than 2,000 years ago. In the early 14th century, the Venetians used tin foil and Mercury is coated on the back of the glass to make a mirror, which makes it look very clear. In the 15th century, Nuremberg made a convex lens, which was made by coating a layer of mercury inside when making glass.
Modern mirrors are made from German chemistry in 1835 Made by the method invented by J. Liebig. Mix silver nitrate and reducing agent to precipitate silver from the silver nitrate and attach it to the glass.
Zipper
The zipper was invented by the United States in 1891. Chicago machinist Judson first invented it.
In order to relieve the trouble of tying shoelaces every day, Judson invented a zipper that can replace shoelaces. This zipper is composed of a row of hooks and a row of buttonholes. , using an iron slide to pull up from bottom, the hooks and buttonholes can be fastened one by one. Judson sent the sample to the Columbian Exposition in 1893, which was well received and obtained a patent. p>
Nowadays, the variety of zippers continues to increase, and its application is not limited to daily necessities, but also has entered scientific research, medical, military and other fields. It has been hailed by some as one of the 10 major civilizations in the scientific and technological world of the 20th century.
Refrigerator
The first artificial refrigeration compressor was invented by Harrison in 1851. Harrison was the owner of the Geelong Advertiser in Australia. When he used ether to clean the type, He found that ether coated on metal has a strong cooling effect.
Ether is a liquid with a low boiling point, and it is easy to evaporate and absorb heat. After research, Harrison developed a method using ether and a pressure pump. The refrigerator was used in a brewery in Victoria, Australia, for refrigeration and cooling during brewing.
The first refrigerator to use an electric motor to drive a compressor was developed by Swedish engineers Brydon and Mendes invented it in 1923. Later, an American company bought their patent and produced the first batch of household refrigerators in 1925.
"Invention King" Edison
Telegraphs, telephones, and electric lights are so commonplace in today's technologically advanced world that no one would be surprised.
Strange. But do you know how crucial and ecstatic these things were to people at that time? Human beings remember their inventor-Edison.
They are called "inventions" Edison, the "King", was a famous American scientist and inventor. In his lifetime, he had 1,328 inventions registered with the patent office alone. How could a man who had only been educated for three months have so many inventions? ?I think if you have heard the story of "Edison hatching chickens", you will definitely understand that his success stems from his strong curiosity.
In 1847, Edison was born in Milan, Ohio, USA. He lived in a businessman family in the city. When he was very young, Edison showed great curiosity. Whenever he saw something he didn't understand, he would grab the adults' clothes and ask them non-stop, insisting on asking them. Chou Yinmao came.
One day, he pointed to the hen that was hatching eggs and asked his mother: "Why is the hen sitting with the eggs under its butt?" His mother said: "Oh, they are incubating the eggs. Where are the chickens?" In the afternoon, Edison suddenly disappeared. The family looked around anxiously and finally found him in the chicken coop. It turned out that he was squatting in the chicken coop with many eggs under his buttocks to hatch chicks! The parents saw it. Later, he couldn't laugh or cry, so he had to pull him out, wash his face, and wash his clothes. Another time, he saw birds flying freely in the sky, and thought: If birds can fly, why can't people fly? ?So, he found a kind of medicinal powder for his little friend to eat, in order to make the little friend fly into the sky. As a result, the little friend almost died, and Edison was beaten severely by his father.
Finally, it was not easy. When Eddie was 8 years old, his parents sent him to a rural primary school, thinking that from now on he would be able to go to school in peace. Unexpectedly, he still loved to ask questions and often left the teacher dumbfounded and embarrassed. Once in an arithmetic class, the teacher wrote "2+2=4" on the blackboard. Edison immediately stood up and asked: "Teacher, why does 2 plus 2 equal 4?" This question stopped the teacher. He thought Edison He was a troublemaker who got into trouble with the teacher, so after three months of classes, Edison was driven home by the teacher.
Edison’s mother was a great mother. She blamed him for being kicked back. Instead, he decided to educate his children well by himself. When she found that Edison was curious and particularly interested in physics and chemistry, she bought him books about physics and chemistry experiments. Edison followed the books. , and started doing experiments alone. It can be said that this was Edison’s enlightenment education for scientific inventions.
When Edison grew up, he learned the technology of sending and receiving radio messages. He found a job at the Stratford Railway Branch He got a job as a night shift operator. According to regulations, night shift operators must send a signal to the train manager once every hour after nine o'clock in the evening, regardless of whether they have something to do or not. In order to have a good night's rest and be able to delve into inventions and creations during the day, Edison designed A telegraph machine automatically sent signals on time. This was the prototype of the telegraph machine.
Not long after, he improved the telegraph machine. After many tests, a new telegraph machine was successfully trial-produced. Edison looked at the machine he invented and smiled happily.
It should be said that every invention of Edison is closely related to his curiosity. After he invented the telegraph , began to conduct telephone experiments again. He found that the diaphragm in the microphone could vibrate in response to the sound of speaking, so he observed it carefully and made detailed records in his notebook. From this, a "talking machine" was created When people heard the news, they all came to watch and called him "the greatest inventor". Therefore, curiosity is a prerequisite for a person to succeed and show wisdom.
Not only famous Scientists need curiosity, and we ordinary people also need curiosity to learn knowledge and achieve success. In July 1991, the Ministry of Science and Technology of Guangming Daily conducted a questionnaire survey on 118 middle school students who won prizes in the National Youth Science and Technology Invention Competition. In the column of "Your main psychological characteristics", 92% of the students wrote that they were "very curious". He Ji, a teenager from Daoxian No. 1 Middle School in Lingling District, Hunan Province, couldn't help but be curious when he went to the chicken shed to collect eggs one day. He thought to himself: Why are eggs big on one end and small on the other? Does the big head come out of the mother's body first or does the small head come out of the mother's body first? In order to find out this question, he rushed home as soon as school was over every day and squatted quietly next to the chicken shed. Observation, and sometimes even forgot to eat dinner. More than two months later, He Ji finally discovered that eggs emerge from the mother's body with the big head first. To this end, he wrote a paper and was praised by many biologists. His discovery ranked first in the world.
This is a new discovery that has not been recorded in bird literature.
Being successful requires curiosity, but having curiosity does not mean that you will be successful. To be successful, you need to work hard. Work hard. Curiosity is like a seed. Without seeds, towering trees cannot grow. People without curiosity cannot invent or create. After the seeds are sown in the black soil, they will be watered and cultivated by people. It will gradually break out of the ground and grow from a seedling into a pillar. With curiosity, coupled with sweat and hard work, you will definitely become a useful talent. Dr. Li Zhengdao, a famous contemporary physicist, said: "Curiosity is very important , To do science is inseparable from curiosity. The reason is very simple. Only curiosity can ask questions and solve problems. The terrible thing is that you can't ask questions and can't take the first step. "Because curiosity is so important, many people Curiosity is called the first virtue of a successful person. For a young man who is aspiring to become talented and eager to succeed, curiosity is the most precious thing.
Whether it is the story of the great inventor Edison, or the story of primary and middle school students He Ji's story proves to us a truth: curiosity - the heart of the inventor.
Edited on 2018-02-17
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What are the stories of scientific inventions and discoveries?
1. When Edison did not invent the light bulb a long time ago, many people usually used candle lights, kerosene lamps, etc. for lighting at night. At that time, Edison was very distressed. He was determined to invent a light bulb that could Durable light bulb. Edison failed again and again. A few years later, Edison's experience of failure was ridiculed by many people, thinking that he was daydreaming, especially that Edison had done many failed experiments. Faced with doubts and distrust from others, Edison did not give up the filament experiment plan. Instead, he used this as motivation to continue his own scientific experiments. So he tried a carbonized cotton swab as a filament material to evacuate the bulb. This material still lasted for a long time, but burned out shortly after forty-five hours. But Edison was already very excited. He had tried more than More than 6,000 experiments have been carried out, and this time we have undoubtedly found a breakthrough point. Edison began to conduct filament experiments again, and his efforts paid off. He discovered that tungsten filament could be used as an electric light material. He was ecstatic about this. This material is an excellent material for light bulbs. It emits very bright light and is not easy to burn. Suitable for long-term use. In this way, light bulbs slowly entered the homes of ordinary people and became an essential lighting tool for us at night. 2. Watt The structure of the new steam engine invented by Watt based on the original steam engine remained almost unchanged for the next 50 years. The importance of Watt's steam engine invention is inestimable. It was widely used in factories and became the power of almost all machines. It changed the way people work and produce, greatly promoted technological progress and kicked off the industrial revolution. It allows the site selection of factories to no longer depend on coal mines but can be built in more economical and efficient places. It also does not have to rely on water energy so that it can operate all year round. This further promotes the development of economies of scale and greatly improves productivity. It also makes business investment more efficient. The steam engine provides the possibility for a series of precision processing innovations, and higher technology ensures the performance improvement of various machines, including the steam engine itself. After continuous efforts to introduce higher pressure steam, steam trains and steamers soon followed. 3. Newton Newton created the reflecting telescope in 1672. He used the universal gravitation between particles to prove that the external gravitational force of a sphere with a spherical density can be replaced by particles of the same mass placed in the center. He also used the principle of universal gravitation to explain various phenomena of tides, pointing out that the size of tides is not only related to the phase of the moon, but also to the orientation of the sun. Newton predicted that the earth was not a perfect sphere. Precession is caused by the sun's perturbation of the protruding part of the equator. 4. Marie Curie At the end of 1902, Marie Curie refined one-tenth of a gram of extremely pure radium chloride and accurately determined its atomic weight. Since then the existence of radium has been confirmed. Radium is a natural radioactive substance that is extremely difficult to obtain. Its form is a shiny, white crystal like fine salt. Radium has a slightly bluish fluorescence, and it is this beautiful light blue fluorescence that blends into A woman's beautiful life and unyielding faith.
In spectral analysis, it is different from the spectral lines of any known element. Although radium is not the first radioactive element discovered by humans, it is the most radioactive element. Using its powerful radioactivity, many new properties of radiation can be further identified. to enable further practical application of many elements. Radium rays have very different effects on various cells and tissues. Those cells that reproduce quickly are quickly destroyed by radium irradiation. This discovery made radium a powerful tool in the treatment of cancer. Cancerous tumors are composed of cells that reproduce abnormally rapidly, and laser rays can damage them far more than the surrounding healthy tissue. This new treatment method was quickly developed in countries around the world. In the French Republic, radium therapy was called Curie therapy. The discovery of radium fundamentally changed the basic principles of physics and was of great significance in promoting the development of scientific theories and their practical applications. 5. The Wright Brothers The Wright Brothers are famous American inventors. Their elder brother is Wilbur Wright, and his younger brother is Orville Wright. On December 17, 1903, the Wright brothers made the first test flight of an aircraft that was completely controlled, relied on its own power, had a fuselage heavier than air, and could stay in the air continuously without landing, which was the world's first aircraft "Aviator One". The airplane is one of the greatest inventions in history. Some people rank it with television and computers as the three inventions that have had the greatest impact on mankind in the 20th century. The Wright brothers pioneered the flight control system that allows aircraft to fly under control, thus laying the foundation for the practical use of aircraft. This technology is still used in all aircraft today. The great invention of the Wright brothers changed human transportation, economy, production and daily life, and also changed military history.
23 Views 5502019-05-05
What are the invention stories of scientists?
Edison invented the electric light. Watt invented the steam engine. Bell invented the telephone. Franklin invented the lightning rod. Bushnell invented the submarine. The Wright brothers invented the airplane. The story of Edison's invention of the electric light: Edison was the child of a railroad worker. He dropped out of elementary school before finishing elementary school and made a living selling newspapers on the train. But he is a diligent person who likes to do various experiments and build many machines. He was interested in electrical appliances. Since Faraday invented the motor, Edison was determined to create electric lights and bring light to mankind. After carefully summing up the failed experiences of his predecessors, Edison formulated a detailed test plan and conducted tests in two aspects: first, classifying and testing more than 1,600 different heat-resistant materials; second, improving the evacuation equipment to make the bulb have a high vacuum. Spend. Edison tested more than 1,600 heat-resistant luminescent materials one by one. Only platinum wire has good performance. However, platinum is extremely expensive, and more suitable materials must be found to replace it. In 1879, after several experiments, Edison finally decided to use carbon filament as the filament. He sprinkled a piece of cotton silk with charcoal powder, bent it into a horseshoe shape, put it in a crucible, heated it, made it into a filament, put it in a light bulb, and then used an air extractor to remove the air from the light bulb. The light turned on and could be used continuously. 45 hours. In this way, the world's first carbon filament incandescent lamps came out.
156 Views 6662019-10-19
What are the stories of scientific inventions and discoveries at home and abroad in ancient and modern times
Watt and Kettle Watt was a British invention more than 200 years ago scientist. When he was young, he watched his grandmother cook one day. On the stove, a pot of water is boiling. The boiling water was rolling in the pot, and the lid of the pot jumped up and down, making a crackling sound. Watt was very surprised, so he asked his grandmother: "Grandma, why does the lid of the pot jump?" Grandma said: "When the water boils, the lid of the pot jumps." Watt asked again: "Why does the lid of the pot jump when the water boils? ?" Grandma couldn't answer. From then on, Watt often sat next to the stove and observed carefully. He saw the water boiling, the steam in the pot rising upwards, and the lid of the pot lifted. He thought: The pot lid is pushed by water vapor. The water vapor generated by a pot of boiling water can push a pot lid. More boiling water will produce more water vapor. Wouldn't it be able to push heavier things? When Watt grew up, he continued to study this issue. He learned from the experience of his predecessors and after many experiments, finally invented the steam engine. Edison's story: Edison was innocently curious and hatched chicks. Once, when it was time to eat, Edison was still missing. His parents were very anxious and looked around. It was not until the evening that they found him in the hay shed next to the yard.
When his father saw him lying motionless in the haystack with many eggs, he asked Edison what he was doing. Little Edison replied that he was hatching chicks. It turned out that he saw a hen hatching chicks and found it strange. Give it a try yourself too. At that time, his father pulled him up angrily and laughed, telling others that chicks would not be hatched. On the way home, he asked in confusion: "Why can hens hatch chicks, but I can't?" Edison's first experiment When Edison was young, he often visited his neighbor Muir Winchester. Playing in the family's mill. One day, he saw Winchester experimenting with a flying device using a balloon in the Winchester family's mill. This experiment fascinated Edison. He thought that if a person's stomach was full of air, he would definitely rise. God. A few days later, Edison mixed several chemical ingredients together and gave it to his father's helper Michael Oates. Edison told Michael Oates that people would fly after eating this stuff. As a result, Oates ate the mixture prepared by Edison. Almost fainted after the "flying agent". Edison was whipped by his father and alerted by parents of children, who advised their children not to play with Edison and to stay away from him. Edison and the Shadowless Lamp One snowy night, Edison's mother suddenly fell ill, and his father hurriedly called for a doctor. The doctor said: "Your mother has acute appendicitis and needs surgery." At that time, there were only oil lamps and no electric lamps. The light of the oil lamp was very dim, so you could perform the wrong surgery accidentally. Edison suddenly thought of a good idea. He took out all the oil lamps in the house and put a mirror behind the oil lamps, so that the doctor could complete the operation smoothly. The doctor said: "My child, you saved your mother with your wisdom and cleverness." Edison took his mother's hand and said: "Mom, I want to make a sun at night." The story of Edison's invention of the light bulb was not invented a long time ago At that time, many people usually used candle lights, kerosene lamps, etc. for lighting at night. At that time, Edison was very distressed and determined to invent a durable and bright light bulb. Edison failed again and again. A few years later, Edison's experience of failure was ridiculed by many people, thinking that he was daydreaming, especially that Edison had done many failed experiments. Faced with the doubts and distrust of others, Edison did not give up the filament experiment plan. Instead, he used this as motivation to continue his own scientific experiments, so he experimented with a carbonized cotton swab as a filament material to evacuate the bulb. This material still lasted for a long time, but it burned out shortly after forty-five hours. However, Edison was already very excited. He had tried more than 6,000 experiments, and this time he undoubtedly found a breakthrough point. Edison began to conduct filament experiments again, and his efforts paid off. He discovered that tungsten filament could be used as an electric light material. He was ecstatic about this. This material is an excellent material for light bulbs. It emits very bright light and is not easy to burn. Suitable for long-term use. In this way, light bulbs slowly entered the homes of ordinary people and became an essential lighting tool for us at night. Pennedytus and "Safety Glass" Pennedytus is a famous French chemist. An accidental opportunity triggered his inspiration, which led him to research and make "safety glass". That was in 1907. One day, Penneditus was arranging instruments in the laboratory and accidentally knocked a glass bottle to the ground. It's over now! However, surprisingly, the bottle did not break into pieces, but only had some cracks. He took out another washed bottle and gently threw it to the ground. This time, the glass bottle was smashed to pieces. Why are the situations in the two bottles so different? Pennedytus couldn't find the answer for a while. A few days later, a car accident was written off in the newspaper. The passengers were injured by flying glass shards, which made Penneditus deeply saddened. He couldn't help but think of the broken but not broken bottle, and was determined to get to the bottom of it. He found the bottle again and observed it carefully. It turned out that it was a bottle that had contained some kind of potion. After the potion evaporated, a tough and transparent film formed on the inner surface of the bottle. It seemed that it was this film that was important to the bottle. The bottle acts as a protector. After many experiments, he finally found a suitable paint with strong adhesion and good transparency. Later, he used paint to bond the two layers of glass together and found that it was better at preventing breakage. In this way, "safety glass" was finally born. The inventor of the ballpoint pen The Hungarian journalist Biro accidentally scratched the paper when he was writing a manuscript. He thought it would be better if the pen tip was replaced with a ball ball. So, Biro went to consult the chemist Oakey.
Oki said: "It's okay to replace the pen tip with a ball, but you can only write if the ink leaks around the ball!" Biro thought, wouldn't it be enough to control the flow of ink when the ball rotates? He began to experiment again and again. Finally, a new pen - the ballpoint pen - was invented that relied on the rotation of the ball to deliver ink. Ballpoint pens are very convenient to use and very cheap, so they quickly became popular all over the world. Fleming and Penicillin British bacteriologist Fleming was working on Staphylococcus aureus, a bacterium that makes people sick. In order to investigate the living habits and pathogenic mechanism of this pathogen, they need to be cultured and observed. The equipment at that time was relatively simple, and the work was carried out in an old house that was hot and humid. During the experiment, the petri dishes needed to be opened many times, and the cultures in the dishes were easily contaminated. Once, Fleming opened a petri dish to observe bacteria and accidentally discovered that blue-green mold grew on the mouth of the petri dish. Next to the mold, staphylococci were dissolved and clear water droplets appeared. Why can blue-green mold inhibit the growth of bacteria and eliminate them? Fleming clung to this "accidental" discovery and went all out to study this blue-green mold. He finally found the nemesis of Staphylococcus aureus - penicillin, and further discovered that it also has the same effect on some other pathogens. It has a killing effect. In 1945, Fleming, who discovered penicillin, won the Nobel Prize in Physiology and Medicine together with the British pathologist Flory and the German chemist Chain who developed the chemical preparation of penicillin. Boiling stones - gas Meldock has been particularly fond of thinking about things since he was a child. He often tries his best to do things that others have never done, especially those little tricks that can surprise adults. One day, young Meldock dug into some shale on the hillside. The locals all knew that this kind of stone could be ignited with fire. However, little Meldock suddenly thought: "What would happen if it was boiled?" He decided to try it. So he took the stone home, put it in an empty kettle, and heated the kettle. "Can it still be lit if you heat it up?" Little Meldock wondered as he watched. After a while, gas began to come out of the spout. Little Meldoc opened the lid of the pot and struck a match to see if the shale could still light. Unexpectedly, as soon as the burning match reached the kettle, the flame suddenly jumped up! When coal is heated, it turns into a gas—Meldock Jr. called it coal gas. Time passed by, Meldock grew up, and he embarked on the path of chemical research. One day in 1792, while Meldock was studying coal minerals, he suddenly remembered the game he played with shale in his childhood. He thought: "If the flame suddenly jumps up, it means that the gas released by the shale is burned. This gas may have some use value!" After repeated experiments, Meldock proved his idea. Converting coal into gas and then using it as energy is a major advancement in the way humans use coal, and it brings great convenience to people. Playing with Lenses - Telescope In 1607, in the small town of Mittelburg in the Netherlands, there lived Libby Hess, an eyeglass maker. He made a living by opening an eyeglass shop, and his life was not rich. Libby Hess has three children who often use the lenses at home as toys. One day, three children were playing with several lenses. One of the children stood on the windowsill with a pair of spectacle lenses in each hand. His hands moved one behind the other so that the two lenses overlapped and then closed. One eye looks curiously into the distance through two lenses. Suddenly, he found that the scenery in the distance was brought to his eyes, and he could see it very clearly. He excitedly told his father about this discovery. After hearing this, Libby Hess followed the example of a child, and indeed he could clearly see the church steeple in the distance. This aroused great interest in Libby Hess. He checked the two lenses repeatedly, one of which was a presbyopia lens and the other was a myopia lens. He found that if the presbyopic lens is placed in the front and the myopia lens is placed in the back, as long as the distance between the two lenses is appropriately adjusted, distant objects can be seen clearly. Based on this principle, Libby Hess made a simple telescope after some research. This telescope only had a lens tube of more than 30 centimeters long, which contained a reading glasses and a myopia lens, but it became the world's first telescope. Although this telescope is still very crude, it announced that humans have "clairvoyance". Knock on wood - stethoscope This was back in 1816. On the outskirts of Paris, France, a group of children were playing around a pile of wood.
One of the children kept banging on one end of the wood with a big iron nail, while the other children listened with their ears against the wood at the other end. At this time, a doctor who had just returned from treating a heart attack patient happened to be passing by. He looked at the group of children curiously and couldn't help but move forward to listen. Immediately, bursts of real and crisp knocking sounds entered the ears. When the ears left the wood, the sound became faint and distant. The doctor immediately contacted the patient who had just visited her. Because the female patient was too obese, traditional percussion methods could no longer accurately hear her pulse, and it was inconvenient to directly put his ear to her chest to auscultate her. The doctor just now felt very embarrassed. The knocking sound of the log inspired the doctor. He made a wooden tube to auscultate the patient. Later, he used a trumpet-shaped ivory tube with two flexible tubes installed on it. This was the world's first stethoscope.
343 Views 90692017-11-09
And those stories of scientific inventions
The story of Einstein (Story 1) Einstein was a very greedy person when he was a child Playing kids. His mother was often worried about this, and her repeated warnings fell on deaf ears to him. Until the fall when he was 16 years old, one morning, his father stopped Einstein who was going fishing by the river and told him a story. It was this story that changed Einstein's life. The story goes like this: "Yesterday," Einstein's father said, "our neighbor Uncle Jack and I cleaned a large chimney in the factory to the south. The chimney can only be climbed up by stepping on the steel step ladder inside. You, Uncle Jack, are in front, I was behind. We grabbed the handrail and climbed up step by step. When we came down, Uncle Jack was still walking in front, and I followed him. Later, when I got out of the chimney, I discovered something strange: Your Uncle Jack's back and face were all blackened by the soot from the chimney, but there wasn't even a drop of soot on my body." Einstein's father continued to smile and said, "I was heartbroken when I saw your Uncle Jack's appearance. Thinking that I must be just like him, my face was as dirty as a clown, so I went to the nearby river and washed it again and again. As for your Uncle Jack, he saw that I was clean when I got out of the chimney, so he thought he was too. He was as clean as me, so he just washed his hands and went out in public. As a result, people on the street laughed so much that they thought your Uncle Jack was a lunatic." After hearing this, Einstein couldn't help but laugh. Laughing with my father. After his father finished laughing, he solemnly said to him, "Actually, no one else can be your mirror. Only you are your own mirror. If you use others as a mirror, an idiot may look at himself as a genius." Einstein listened , and suddenly felt ashamed. Einstein left that group of naughty children. He always used himself as a mirror to examine and reflect himself, and finally reflected the brilliance of his life.