The story discovered by scientists is 200 words.

The story of the great scientist is 200 words.

1862 One morning in August, Edison was selling newspapers at a small station. He looked up and saw a little boy of three or four years old squatting on the rail and playing with stones, and a truck was galloping towards him. Edison threw down the newspaper with a sigh, rushed down the platform in desperation and grabbed the child. At this moment, the train roared past his ear. What a close call! Edison held the little boy and fell on the track. His face and hands were cut. However, the child was saved.

The little boy's father, Mackenzie, is the stationmaster of this station. He is an excellent operator. Mackenzie saw this thrilling scene with his own eyes and was moved incoherently: "Thank you … thank you, thank you for saving … my child!" "

Edison smiled indifferently. He picked up the newspaper from the ground, patted the dust on his body, boarded the train and left.

The next day, when Edison's train pulled into the station, Mackenzie was already waiting on the platform. He said to Edison sincerely, "I have nothing to reward you." I hear you are interested in telegrams. If you like, I can teach you how to send and receive telegrams, so that you can become a telegraph operator. " This sentence is exactly what Edison wanted. He happily accepted Mackenzie's kindness and followed him to learn how to send and receive telegrams.

Edison studied very attentively and made rapid progress. Only three months later, he was proficient in sending and receiving telegrams. Mackenzie recommended him to be a train station operator. This unexpected learning opportunity laid a good foundation for Edison's great inventions in the future.

Newton: The Story of Two Isaacs

One evening, Newton, who was meditating, subconsciously walked to the apple orchard in the backyard. In the garden, the apple trees are covered with ripe apples, and the air is filled with refreshing fruit fragrance, which Newton was completely unaware of.

Suddenly, with a click, a ripe apple on the tree was blown to the ground by the wind. Newton's idea jumped: hey! Why don't apples fall into the sky? Is the gravity of the earth attracting it? !

Newton immediately made an association and extended it. He thinks that the force that the earth attracts apples is the same as the force that the earth makes the moon revolve around itself and the force that the sun makes the planets revolve around itself. He concluded that gravity is also called "gravity".

The story of a scientist is 200 words

1862 One morning in August, Edison was selling newspapers at a small station. Suddenly looking up, I saw a little boy of three or four years old squatting on the rail and playing with stones, and a truck was galloping towards him. Edison let out a whoop of "Ouch", threw down the newspaper, rushed down the platform in desperation, and grabbed the child. At this moment, the train roared past his ear. That was close! Edison held the little boy and fell to the side of the railway track. His face and hands were cut, but the child was saved.

The little boy's father is Mackenzie, the stationmaster of this station. He is an excellent operator. Mackenzie saw this thrilling scene with his own eyes and was moved incoherently: "Thank you … thank you, thank you for saving … my child!" " "

Edison smiled indifferently. He picked up the newspaper from the ground, patted the dust on his body, boarded the train and left.

The next day, when Edison's train pulled into the station, Mackenzie was already waiting on the platform. He said to Edison sincerely, "I have nothing to reward you." I hear you are very interested in telegrams. If you like, I can teach you how to send and receive telegrams and make you a telegraph operator. "These words are from the heart of little Edison. He happily accepted Mackenzie's kindness and followed him to learn the technology of sending and receiving telegrams.

Edison studied very attentively and made rapid progress. Only three months later, he was proficient in sending and receiving telegrams. Mackenzie recommended him to be a train station operator. This unexpected learning opportunity laid a good foundation for Edison's great inventions in the future.

Newton: The Story of Two Isaacs

One evening, Newton, who was meditating, subconsciously walked to the apple orchard in the backyard. In the garden, the apple trees are covered with ripe apples, and the air is filled with refreshing fruit fragrance, which Newton was completely unaware of.

Suddenly, with a click, a ripe apple on the tree was blown to the ground by the wind. Newton's idea jumped: Hey! Why don't apples fall into the sky? Is the gravity of the earth attracting it? !

Newton immediately made an association and extended it. People think that the force that the earth attracts apples is the same as the force that the earth makes the moon revolve around itself and the force that the sun makes the planets revolve around itself. It is concluded that gravity is also called "gravity".

ⅲ The story of scientist Edison is 200 words.

1, the first taste test

When Edison was young, he often went to play in the mill of his neighbor Muir Winchester's house. One day, in Winchester's mill, he saw Winchester doing a flying device experiment with a balloon. This experiment fascinated Edison. He thinks that if a person's stomach is full of qi, he will surely ascend to heaven.

A few days later, Edison mixed several chemical raw materials and gave them to his father's assistant, Michael Oates. Edison told Michael Oates that people would fly after eating this kind of food, and Oates almost fainted after eating Edison's "flying agent". Edison was whipped by his father, and his parents were vigilant, advising their children not to play with Edison and stay away from him.

2. Innocent and curious to hatch chickens

Once, when it was time for dinner, Edison still didn't come back. My parents are worried and look around. It was not until the evening that I found him in the hut next to the yard. When his father saw him lying motionless in a haystack full of eggs, he asked Edison what he was doing. Little Edison replied that he was incubating chickens. It turned out that he was surprised to see that hens could hatch chicks, and he always wanted to try it himself.

At that time, his father pulled him up with anger and laughter and told others that chickens could not be hatched. On the way home, he asked inexplicably, "Why can hens hatch chicks and I can't?"

(3) 200-word extended reading of stories discovered by scientists:

Edison was the first person in human history to make use of a large number of production principles and electrical engineering research laboratories to patent inventions, which had a far-reaching impact on the world. His invention of the phonograph, movie camera and electric light had a great influence on the world. He had more than 2,000 inventions and 1000 patents in his life.

Edison not only read widely, but also read ten lines and never forgets anything. Under the guidance of his mother, Edison read the works of English Renaissance playwrights Shakespeare and Dickens and many important historical books. He has also read some works by Thomas Paine. Edison was attracted by the insights in the book and has been affecting his life.

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. Speech speed can make the short needle vibrate accordingly. On the other hand, this kind of vibration will definitely make the original sound, so he began to study the problem of sound reproduction.

/kloc-in August of 0/5, Edison asked his assistant to make a "strange machine" consisting of a large cylinder, a crank, a receiver and a diaphragm according to the pattern. After the production, Edison took out a piece of tin foil and rolled it on a metal cylinder engraved with spiral grooves, so that one end of the needle gently rubbed the tin foil and the other end was connected with the receiver.

Then Edison shook the handle, sang into the receiver, put the needle back, shook the handle 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.

Ⅳ The story of the scientist (within 200 words)

Einstein's truancy

1895 spring, Einstein 16 years old. According to the laws of Germany at that time, boys could leave Germany before 17 years old and did not have to come back for military service. Because he hated militarism and couldn't bear to stay in the barracks alone-just like Louis Polder Middle School, Einstein decided to leave Germany and go to Italy to reunite with his parents without consulting his parents. However, what if I drop out of school and can't get my diploma later? Einstein, who has always been honest and simple, came up with a self-righteous idea in a hurry. He asked the math teacher to give him a certificate to prove that his math scores were excellent and he reached the university level early. I got a sick note from a familiar doctor, saying that it was neurasthenia and I needed to go home and rest. Einstein thought that with these two proofs, he could escape from this disgusting place. Who knows, before he applied, the dean called him and ordered him to drop out of school on the grounds that he corrupted the class spirit and disobeyed the school discipline. Einstein blushed. For whatever reason, he was willing to leave this middle school and didn't care about anything. He just suddenly felt guilty that he had come up with a cunning idea but it didn't come true. Einstein felt guilty every time he mentioned it later. Perhaps this kind of thing is far from his frank and sincere personality.

Ⅳ The story of scientists is 200 words.

1, Newton's story

Newton is a world-famous scientist. Newton loved animals when he was a child. Once, his friend gave him a dog and a cat. Newton was very happy to receive the gift and took good care of his new friend. In order to facilitate dogs and cats to enter and leave the room, Newton dug two holes by the door, one large and one small. Someone asked him why you dug two holes, one big and one small.

Newton replied, "Can a dog go through a cat hole?" Newton's childhood was unfortunate. His father died three months before he was born. At the age of two, my mother remarried to a neighboring village. Newton had to live with his grandmother. He never spends money recklessly. His only hobby is making small crafts, saving pocket money, buying tools such as saws and hammers, and hiding in the house after school.

Newton was very attentive when he studied. Once I boiled an egg, thinking about the mathematical formula in my heart, I mistakenly threw my watch into the pot as an egg. Another time, I started working on a problem in the morning and forgot to have lunch. When he felt hungry, it was dusk. He walked out of the study, and a breeze made him feel unusually fresh. It suddenly occurred to me: am I not eating? How to walk into the courtyard!

So he immediately turned around and went into the study again. When he saw the draft spread out on the table, he forgot to eat, and immediately he was nervously prone on the table to calculate.

2. The story of Madame Curie

Madame Curie was a French-born Polish scientist who studied radioactivity and won the Nobel Prize twice in her life. Mary has been studying very hard since she was a child. She has a strong interest in learning and special hobbies. She never misses any learning opportunities easily, and shows tenacious enterprising spirit everywhere. Since primary school, she has been the first in every subject.

15 years old, graduated from high school with a gold medal. Her father studied physics at St. Petersburg University earlier, and her father's thirst for scientific knowledge and strong enterprising spirit also deeply influenced little Mary. She likes all kinds of instruments in her father's laboratory since she was a child. When she grew up, she read many books about natural science.

What makes her more full of fantasy is that she is eager to explore the scientific world. But her family at that time did not allow her to go to college. /kloc-started to be a tutor for a long time at the age of 0/9, and at the same time taught himself various courses to prepare for future study. In this way, until the age of 24, she finally came to study at the Faculty of Science of Paris University. She has a strong thirst for knowledge.

Listen carefully in every class. Hard study makes her grades worse and worse, but her academic performance has always been among the best, which not only envies her classmates, but also surprises her professors. After two years in school, she confidently took part in the bachelor's degree examination in physics, and among 30 candidates, she won the first place. The next year, she won a bachelor's degree in mathematics with the second place.

3. Franklin's story

1one day in June, 752, in the suburb of Philadelphia, USA, it was covered with dark clouds and thunder and lightning. On a wide lawn, two people, an old man and a young man, are flying kites with great interest. Suddenly, a flash of lightning cut through the clouds and drew a "Z" in the sky. Then there was a loud thunder and the rain poured down. The old man shouted, "William, stand in the straw house over there and tighten the kite string."

At this time, lightning flashed one after another, and the thunder was louder and louder. Suddenly William shouted, "Dad, look!" " "The old man looked in the direction pointed by his son, only to see that the original bare and taut hemp rope suddenly burst into anger, and those tiny fibers stood up straight. He shouted happily, "It's coming!" He told his son to be careful.

While slowly approaching the copper key connected with the hemp rope by hand. Suddenly, as if he had been pushed, he fell to the ground and was numb. Without considering the pain, he got up from the ground and connected the Leyden bottle he had brought with him to the bronze key. There is electricity in this Leyden bottle, which releases electric sparks. It turns out that the sky electricity and the earth electricity are the same!

He and his son took the Leyden bottle home like a treasure. The people who seized Sky Power were Franklin and his son William. Franklin was not only a great scientist, but also an outstanding politician and diplomat. He was one of the founders of the Declaration of Independence and the first American ambassador abroad.

After the kite experiment, Franklin wrote a paper about the similarity between lightning and electricity, expounded the essence of lightning, and put forward the idea of making lightning rods to protect buildings from lightning. The lightning rod invented by Franklin was all the rage and spread to Britain, France, Germany, Europe and America.

4. The story of Nobel

Nobel's father is a talented inventor who devoted himself to chemical research, especially explosives. Influenced by his father, Nobel showed a tenacious and brave character from an early age. He often goes to test explosives with his father. Years of studying explosives with his father also made his interest quickly turn to applied chemistry.

1in the summer of 862, he began to study nitroglycerin. This is a difficult journey full of danger and sacrifice. Death has always been with him. An explosion experiment exploded and the laboratory was blown up without a trace. All five assistants were killed, even his youngest brother. This amazing explosion accident.

Nobel's father suffered a very heavy blow and died soon. His neighbors, out of fear, also sued Nobel. Since then, Nobel has been forbidden to carry out experiments in this city. But Nobel is indomitable. He moved his laboratory to a boat in a suburban lake to continue his experiment. After long-term research, he finally found a substance that is very easy to cause explosion.

Mercury fulminate, he used mercury fulminate as explosive detonator, which successfully solved the problem of explosive detonation. This is the invention of detonator. This is a major breakthrough on Nobel's scientific road. Nobel made many inventions in his life and obtained 255 patents, including 129 kinds of explosives. As he lay dying, he was still obsessed with the research of new explosives.

5. The Story of Watt

Watt was born in England. Because his family is poor, he has no chance to go to school. First as an apprentice in a watch shop, then as an instrument repairman at Glasgow University. Watt is clever and studious. He often takes time to listen to professors' lectures. Plus, he plays with those musical instruments all day, and he has a lot of knowledge. 1764, Glasgow University received a newcomen steam engine, which needed maintenance.

The task was given to Watt. After Watt repaired it, I watched how hard he worked, just like an old man panting and walking with a heavy load, and felt that it should be improved. He noticed that the main problem was that the cylinder body was hot and cold with the steam every time, which wasted a lot of heat. Can you keep the temperature low and the piston work as usual?

So he rented a cellar at his own expense, collected several scrapped steam engines and decided to build a new machine. From then on, Watt fiddled with these machines all day, and after two years, he finally took on a new look. But when trying to light the fire, the tank leaked everywhere. Watt tried to wrap it in felt and tarpaulin. Months passed, but he still failed to solve the problem.

Watt didn't give up. After unremitting efforts, he finally designed a condenser separated from the cylinder, which increased the thermal efficiency by three times and used only a quarter of the original coal. As soon as this key place broke through, Watt suddenly felt that the future was bright. He went to the university to ask Professor Black some theoretical questions, and the professor introduced him to Wilkin, the technician who invented the boring machine.

Technicians immediately made the cylinder and piston by boring the barrel, which solved the most troublesome air leakage problem. 1784, Watt's steam engine was equipped with a crankshaft and a flywheel. The piston can be continuously driven by steam coming from both sides, and the valve does not need manual adjustment, so the world's first real steam engine was born.

ⅵ stories of scientists (within 200 words)

The story of movable type printing in Bi Sheng

In the early days, books were printed in full page. It is said that my brother Bi Sheng invented movable type printing, and the printing efficiency has been improved by dozens of times. The younger brothers learn from their older brothers.

While demonstrating and explaining, Bi Sheng introduced his invention to his younger brothers without reservation.

He first made delicate clay into small squares, engraved them with raised backhand characters one by one, hardened them with fire, and put them in the square according to vowels. Then spread a layer of glue (rosin, wax, paper scraps) on the iron plate, arrange the words one by one according to the paragraph, enclose them with an iron frame and heat them with fire. When the glue cools slightly, flatten the layout with a flat plate, and then print it after it is completely cooled. After printing, bake the printing plate with fire, melt the adhesive, remove the movable type one by one, and save it for typesetting next time.

The younger brothers can't help but exclaim. A younger brother said, "There are more than 5,000 volumes of the Tripitaka, and 6,543,800+3,000 pieces of wood have been carved, which can't fit in one room. How many teenagers have spent their heart and blood! If you use the senior method, you can finish it in a few months. Brother, how did you come up with such a clever way? "

"My two sons taught me!" Bi Sheng said.

"Your son? It won't be like this. They will only' play house'. "

"You're right! Just rely on this' house'. " Bi Sheng said with a smile, "Before Tomb-Sweeping Day last year, I took my wife and children back to my hometown to worship my ancestors. One day, two sons played house, making pots, bowls, tables, chairs, pigs and people out of mud and arranging them around at will. My eyes suddenly lit up, and I thought, why don't I play house, too: carve a single word seal with mud, so that you can arrange it at will and put it in the article? Ha ha! Isn't this what my son taught me? "

Other disciples also burst out laughing.

"But in this house, all the children have played and all the brothers have seen it. Why only you invented movable type printing? " Or the little teacher younger brother asked.

After a while, the master said, "Among your other disciples, Bi Sheng is the most thoughtful. He has been thinking about new ways to improve work efficiency! Rome was not built in a day. "

"Oh-!" The other disciples are enlightened.

ⅶ Short stories about scientists are more than 200 words.

Georg simon ohm was born in Herungen City. His father is a locksmith. My father taught himself the knowledge of mathematics and physics, and taught Ohm in his teens, which aroused Ohm's interest in science. /kloc-At the age of 0/6, he entered He Run University to study mathematics, physics and philosophy. Dropped out of school due to financial difficulties, and did not finish his doctoral studies until 18 13. Ohm is a man with great talent and scientific ambition. He has been a middle school teacher for a long time. Due to the lack of information and instruments, his research work has brought many difficulties. But he has been persistently conducting scientific research and making his own instruments in a lonely and hard environment.

Ohm studied the current in the wire. He was inspired by the law of heat conduction discovered by Fourier, and the heat flow between two points in a heat conducting rod is directly proportional to the temperature difference between the two points. So Ohm thinks that the current phenomenon is similar to this, and guesses that the current between two points in the wire may be proportional to some driving force between them, which is now called electromotive force. Ohm spent a lot of energy on this research. At first, he used voltaic pile as power supply, but the effect was not good because of the unstable current. Later, he accepted the advice of others and used thermoelectric battery as power supply, thus ensuring the stability of current. But how to measure the current was still an unsolved problem at that time. At first, ohm used the thermal effect of current to measure the current by expanding with heat and contracting with cold, but it is difficult to get accurate results by this method. Later, he combined the current magnetic effect discovered by Oster with Coulomb torsion balance, and skillfully designed a current torsion balance, in which a twisted wire was used to hang a magnetic needle, so that the electrified wire and the magnetic needle were placed in parallel along the meridian direction. Then a bismuth-copper thermoelectric battery is used, one end of which is immersed in boiling water and the other end is immersed in crushed ice. Two mercury tanks are used as electrodes and connected by copper wires. When the current passes through the wire, the deflection angle of the magnetic needle is proportional to the current in the wire. He published the experimental results in 1826. 1827, Ohm summed up his experimental laws into the following formula in the book Mathematical Research of Circuits: S = γ E, where s stands for current; E stands for electrodynamic force, that is, the potential difference between the two ends of the wire, γ is the conductivity of the wire to the current, and its reciprocal is the resistance.

In the early days of the discovery of Ohm's Law, many physicists could not correctly understand and evaluate this discovery, and were doubted and sharply criticized. The research results were ignored and the economy was extremely difficult, which made Ohm depressed. It was not until 184 1 the Royal Society awarded him the highest honor-the copley Gold Medal, that it attracted the attention of the German scientific community.

Ohm also proved in many of his works that resistance is directly proportional to the length of the conductor and inversely proportional to the cross-sectional area and conductivity of the conductor; In the case of constant current, the charge moves not only on the surface of the conductor, but also on the whole cross section of the conductor.

In memory of him, people named ohm's surname as the physical unit for measuring resistance.

Eight, the inventor's story: 200 words

Jumping cover

Watt was a British scientist more than 200 years ago.

When he was young, one day he watched his grandmother cook. On the stove, a pot of water boiled. Boiling water rolled in the pot, and the lid kept jumping up and down, making a snapping sound.

Watt was very surprised and asked his grandmother, "Grandma, why did the lid jump?"

Grandma said, "When the water boils, the lid will jump."

Watt asked again, "Why does the lid jump when the water is boiling?"

Grandma can't answer.

From then on, Watt often sat by the fire and observed carefully. He saw the water boiling, and the steam in the pot rushed up and rushed to the lid. He thought: the lid of the pot is pushed by steam. The steam produced by a pot of boiling water can push a lid. More boiling water will produce more steam. Can't it push something heavier?

When Watt grew up, he continued to study this problem. He absorbed the experience of predecessors, and after many experiments, he finally invented the steam engine.

ⅸ Examples of scientists discovering truth from trivial matters, within 200 words.

The story of Newton and Apple

For a long time, Newton thought that there must be a mysterious force pulling the planets in the solar system around the sun. But what kind of power is this?

Until one day, Newton was thinking under the apple tree in the garden, and an apple fell at his feet. Newton finally had an epiphany and his problem was gradually solved.

Legend has it that in the autumn of 1665, Newton sat under the apple tree in his yard, thinking hard about the reason why the planets revolve around the sun. At this moment, an apple happened to fall, and it landed at Newton's feet. This is a moment of discovery. This apple fall was different from countless previous apple falls, which attracted Newton's attention. Newton found the reason why the apple landed from the natural phenomenon of landing-the role of gravity.

X. Stories of Inventions and Discoveries by Scientists (150~200 words)

1747, French engineer Franois Fraineau made the world's earliest raincoat. He used latex obtained from rubber wood to dip cloth shoes and jackets in this latex solution, which can play a waterproof role.

McIntosh, who works in a rubber factory in Scotland, can't afford rain gear because he lives in poverty. Every rainy day, he can only go to work in the rain. One day, he accidentally spilled rubber juice on his clothes and couldn't wipe it off, so he had to wear this dirty clothes to go home. It was raining outside, but when McIntosh came home, he was surprised to find that his clothes were not wet at all. He just smeared rubber juice on his clothes. This is the first rubber raincoat in the world.